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Head Hair Total Mercury and Methylmercury Levels in Some Ghanaian Individuals for the Estimation of Their Exposure to Mercury: Preliminary Studies.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The extent of human exposure to mercury in some individuals in Ghana was evaluated by analysing samples of human head hair for total mercury and methylmercury. The average level of total mercury was 0.843 mug g(-1) (in range of 0.119-4.140, n = 123) and that of methylmercury was 0.787 mug g(-1) (in range of 0.208-1.847, n = 42). Mercury was present in the hair samples almost completely in the methylated form. The average percentage ratio of methylmercury to total mercury was 97.2% (in range of 88.5%-107.6%). The results of this study indicate low levels of exposure to methylmercury and does not pose a significant risk ...
Source: Bulletin of Environmental Contamination and Toxicology - November 14, 2009 Category: Environmental Health Authors: Voegborlo RB, Matsuyama A, Adimado AA, Akagi H Tags: Bull Environ Contam Toxicol Source Type: journals

Health Risk from Exposure of Organic Pollutants Through Drinking Water Consumption in Nanjing, China.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Human health risk analysis for 24 organic pollutants in drinking water of Nanjing was conducted. For non-carcinogenic risk, the 95th percentile hazard quotient (HQ) values of pollutants were all less than the unacceptable level of one. Considering the lifetime carcinogenic risk (LCR), however, the 95th percentile LCR values of 2,6-dinitrotoluene (1.30E-05), benzo(b)fluoranthene (3.10E-05), benzo(a)pyrene (3.37E-05) and dibenz(a,h)anthracene (2.09E-05) exceeded the unacceptable level of 1.00 E-05. These results suggest that organic pollutants in drinking water of Nanjing might pose potential lifetime carcinogenic risk f...
Source: Bulletin of Environmental Contamination and Toxicology - November 14, 2009 Category: Environmental Health Authors: Wu B, Zhang Y, Zhang X, Cheng S Tags: Bull Environ Contam Toxicol Source Type: journals

Copper, Zinc and Lead Enrichments in Sediments from Guacanayabo Gulf, Cuba, and Its Bioaccumulation in Oysters, Crassostrea rhizophorae.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Levels of iron, copper, zinc and lead were determined in sediments and soft tissue of the oyster Crassostrea rhizophorae collected from Guacanayabo Gulf, Cuba. Metal-to-Iron ratio in sediments shows an average enrichment for Cu (5,1), Pb (11,7) and Zn (1,3) in the last 20 years. Metal concentrations found in soft tissue of C. rhizophorae are site dependent. The average biota-sediment accumulation factors (BSAFs) obtained for Fe, Cu and Pb are less than unity in all cases, indicating that only a little fraction of Cu and Pb in the sediments is bioavailable, independently of their enrichments. Zinc has an average BSAF va...
Source: Bulletin of Environmental Contamination and Toxicology - November 14, 2009 Category: Environmental Health Authors: Díaz Rizo O, Olivares Reumont S, Viguri Fuente J, Díaz Arado O, López Pino N, D'Alessandro Rodríguez K, de la Rosa Medero D, Gelen Rudnikas A, Arencibia Carballo G Tags: Bull Environ Contam Toxicol Source Type: journals

Equilibrium and Kinetics Characteristics of Copper (II) Sorption onto Gyttja.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The sorption characteristics of gyttja to remove copper (Cu(2+)) ions from aqueous solutions were satisfactorily described with the Freundlich, Langmuir and Dubinin-Redushckevich (D-R) models. The sorption capacity (q (max)) of gyttja was 11.76 mg g(-1). The D-R model indicated that the sorption of Cu(2+) by gyttja was almost taken place by chemisorption. Thermodynamic parameters such as change in free energy (DeltaG), enthalpy (DeltaH), and entropy (DeltaS) suggested that the adsorption process of Cu(2+) by gyttja was feasible, spontaneous and endothermic in nature. Kinetic examination of the equilibrium data showed t...
Source: Bulletin of Environmental Contamination and Toxicology - November 12, 2009 Category: Environmental Health Authors: Dikici H, Saltali K, Bingölbalı S Tags: Bull Environ Contam Toxicol Source Type: journals

Land Use Change and Nutrients Simulation for the Siah Darvishan Basin of the Anzali Wetland Region, Iran.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The Anzali Ramsar Convention wetland is located in an ecologically and economically important region in Iran. The wetland is largely surrounded by agriculture, natural forests and rangelands (approximately 36% and 63%, respectively). Urban areas consist of less than 1% of the total area. Urban land use produces the highest rates of nutrient transfer into the lake as TN, TP and BOD5 equal to 24, 2.4 and 79 Kg/ha/year, respectively, whilst, natural land use produces the lowest rate as 10, 1.3 and 27 kg/ha/year. These results will inform the future sustainable management of this important wetland in this ever increasingly...
Source: Bulletin of Environmental Contamination and Toxicology - November 6, 2009 Category: Environmental Health Authors: Ghafouri M, Ghaderi N, Tabatabaei M, Versace V, Ierodiaconou D, Barry DA, Stagnitti F Tags: Bull Environ Contam Toxicol Source Type: journals

Effect of Household Processing on Fenazaquin Residues in Okra Fruits.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Fenazaquin (4-[[4 (1,1-dimethylethyl) phenyl] ethoxy]quinazoline) is a new acaricide of the quinazoline class. Residue levels of fenazaquin were determined in unprocessed and processed okra fruits to evaluate the effect of different processes (washing, boiling and washing followed by boiling) in reduction of residues of this pesticide in okra. The study was carried out on okra crop (Variety, Varsha Uphar) in research farm of Chaudhary Charan Singh Haryana Agricultural University, Hisar with application of fenazaquin (Magister 10 EC) @ 125 ga.i./ha (Single Dose, T(1)) and 250 g a.i./ha (Double Dose, T(2)). Samples of ok...
Source: Bulletin of Environmental Contamination and Toxicology - October 21, 2009 Category: Environmental Health Authors: Duhan A, Kumari B, Gulati R Tags: Bull Environ Contam Toxicol Source Type: journals

Zinc and Cadmium Regulation Efficiency in Three Ant Species Originating from a Metal Pollution Gradient.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study examined the relationships between Zn and Cd total (tot) and water soluble (ws) concentrations in soil and in workers of three ant species collected along a metal-pollution gradient: Formica cunicularia, Lasius flavus and Myrmica rubra. Regression line comparisons showed the body loads of metals to depend strongly on the metal and the species. M. rubra showed the most efficient regulation of Zn, as its average Zn concentration and the regression slope were several times lower than for the other species. Although the species differed in their Cd levels, the slopes of the relationships between Cd concentration in ...
Source: Bulletin of Environmental Contamination and Toxicology - October 12, 2009 Category: Environmental Health Authors: Grześ IM Tags: Bull Environ Contam Toxicol Source Type: journals

Impact of Cypermethrin on Na(+)-K (+), Ca (2+) and Mg (2+) ATPases in Indian Major Carp, Cirrhinus mrigala (Hamilton).Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Activities of ATPase in different organs of Cirrhinus mrigala exposed to cypermethrin with lethal (5.13 mug/L) and sublethal (1.02 mug/L) concentration was investigated. Decrease of Na(+)-K(+)-ATPase activity was observed in gills, liver and muscle to about 60.22%, 22.13% and 48.89% respectively, by lethal concentration. Whereas in sublethal concentration activity was increased to about 7.84%, 10.70% and 5.96%. Similarly, in case of Mg(2+)-ATPases activity as 57.61%, 48.82% and 28.59% for lethal and for sublethal it was 10.15%, 4.64% and 11.92%. Ca(2+)-ATPase activity was observed to be 55.24%, 41.66% and 47.66% by let...
Source: Bulletin of Environmental Contamination and Toxicology - October 12, 2009 Category: Environmental Health Authors: Prashanth MS, David M Tags: Bull Environ Contam Toxicol Source Type: journals

Evaluation and Comparison of Measurement Methods for Personal Exposure to Fine Particles in Beijing, China.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Ambient measurement and microenvironmental modeling were compared with personal measurement in Beijing, China to evaluate their capacity to determine personal exposure to PM(2.5). The comparison showed the association was insignificant between ambient and personal concentrations, but was significant between modeled and personal concentrations. The association between ambient and personal concentrations was improved for non-smoking dormitories, on heavily polluted days and on weekdays. The median difference was 41% between ambient and personal concentrations and 17% between modeled and personal concentrations. The facto...
Source: Bulletin of Environmental Contamination and Toxicology - October 9, 2009 Category: Environmental Health Authors: Zhu X, Ma F, Luan H, Wu D, Wang T Tags: Bull Environ Contam Toxicol Source Type: journals

Levels of DNA Adducts in the Blood and Follicular Fluid of Women Undergoing In Vitro Fertilization Treatment and Its Correlation with the Pregnancy Outcome.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study is designed to investigate the impact of DNA damage on pregnancy and fertilization rate outcome in a sub-sample of women undergoing IVF treatment. Blood and follicular fluid samples (n = 60) were analyzed for DNA adducts. While no BPDE-DNA adducts were detected, other unknown lipophilic adducts were seen in blood and follicular fluid. Women who failed to achieve pregnancy had higher DNA adducts in follicular fluid than those who succeeded (p < 0.05). Follicular fluid cotinine levels were associated with DNA adduct levels in blood and follicular fluid (p < 0.05). Evaluation of DNA damage resulting from oxid...
Source: Bulletin of Environmental Contamination and Toxicology - October 9, 2009 Category: Environmental Health Authors: Al-Saleh I, El-Doush I, Arif J, Coskun S, Jaroudi K, Al-Shahrani A, El-Din Mohamed G Tags: Bull Environ Contam Toxicol Source Type: journals

Preliminary Study on the Induction of Sperm Head Abnormalities in Mice, Mus musculus, Exposed to Radiofrequency Radiations from Global System for Mobile Communication Base Stations.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The exposure of male mice to radiofrequency radiations from mobile phone (GSM) base stations at a workplace complex and residential quarters caused 39.78 and 46.03%, respectively, in sperm head abnormalities compared to 2.13% in control group. Statistical analysis of sperm head abnormality score showed that there was a significant (p < 0.05) difference in occurrence of sperm head abnormalities in test animals. The major abnormalities observed were knobbed hook, pin-head and banana-shaped sperm head. The occurrence of the sperm head abnormalities was also found to be dose dependent. The implications of the observed i...
Source: Bulletin of Environmental Contamination and Toxicology - October 8, 2009 Category: Environmental Health Authors: Otitoloju AA, Obe IA, Adewale OA, Otubanjo OA, Osunkalu VO Tags: Bull Environ Contam Toxicol Source Type: journals

Synergistic Action of Exogenous Salicylic Acid and Arbuscular Mycorrhizal Fungus Colonization in Avena nuda Seedlings in Response to NO(2) Exposure.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Colonization of arbuscular mycorrhizal fungi Glomus mosseae or exogenous salicylic acid (SA) treatment can increase Avena nuda plant tolerance to elevated NO(2) exposure. The combination of the two factors, namely application of SA to the mycorrhizal plants, further promoted NO(2) tolerance, as indicated by an alleviated plant biomass decrease compared to the respective treatment. The analysis of antioxidant capacity, redox status and photon energy utilization showed that the increased NO(2) tolerance in the treated plants may be associated, at least in part, with scavenging reactive oxygen species, maintaining CO(2) a...
Source: Bulletin of Environmental Contamination and Toxicology - October 6, 2009 Category: Environmental Health Authors: Li R, Jiang Y, Xu J, Zhou B, Ma C, Liu C, Yang C, Xiao Y, Xu Q, Hao L Tags: Bull Environ Contam Toxicol Source Type: journals

Dissipation of Mefenoxam Residue in Watermelon and Soil Under Field Conditions.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Mefenoxam is the systemic phenylamide fungicide, which is widely used in controlling phytophthora disease of tomato, cucumber, pepper and watermelon, etc. The dissipation behaviour of mefenoxam residues in watermelons and soils was studied. The whole watermelon, melon flesh and soil matrices of mefenoxam were analyzed by GC-NPD. At three different spiking levels mean recoveries and relative standard deviation from spiked samples in six replicated experiments for each matrix were in the range 89.6-98.2% and 1.5-8.1%, respectively. Under field conditions, mefenoxam dissipation rate was found to be faster in the whole wat...
Source: Bulletin of Environmental Contamination and Toxicology - October 6, 2009 Category: Environmental Health Authors: Liu D, Qin D, Ji R Tags: Bull Environ Contam Toxicol Source Type: journals

Nitrates and Herbicides Cause Higher Mortality than the Traditional Organic Fertilizers on the Grain Beetle, Tenebrio molitor.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We examined experimentally whether fertilizers or herbicides commonly used by farmers affect mortality of the adult grain beetle Tenebrio molitor. After a period of 4 weeks in direct contact with all treatments, a higher percentage of mortality occurred in contact with nitrates than with pig manure or turkey litter. Herbicides (a mixture of glyphosate and 2,4-D: ) caused 100% mortality. Our results also indicate that more beetles escaped from the herbicides and nitrate treatments than from the others, suggesting some kind of behavioural avoidance of toxic environments. The traditional organic fertilizers appear to be less ...
Source: Bulletin of Environmental Contamination and Toxicology - October 6, 2009 Category: Environmental Health Authors: Castilla AM, Dauwe T, Mora I, Malone J, Guitart R Tags: Bull Environ Contam Toxicol Source Type: journals

Comparative Study of Automotive, Aircraft and Biogenic Emissions of Aldehydes and Aromatic Compounds.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Air samples were collected in three well characterized locations in the city of Rio de Janeiro, Brazil: downtown, the idle and taxi way areas of the national airport and an urban forest, where the main emissions are from vehicular, aircraft and biogenic sources, respectively. Aldehydes and BTEX concentrations show a characteristic profile which may be attributed to the emission sources. Formaldehyde/acetaldehyde ratios, in the early morning, were 1.39, 0.62 and 2.22 in downtown, airport and forest, respectively. Toluene/benzene ratios, for downtown, airport and forest areas, were 1.11, 1.82 and 1.06, respectively. The ...
Source: Bulletin of Environmental Contamination and Toxicology - October 5, 2009 Category: Environmental Health Authors: Guimarães CS, Custodio D, de Oliveira RC, Varandas LS, Arbilla G Tags: Bull Environ Contam Toxicol Source Type: journals

Hypothyroidism Induced by Polychlorinated Biphenyls and Up-Regulation of Transthyretin.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study examined whether or not PCB126 and PCB114 have adverse effects on the serum thyroxine level and the serum proteome in rats. The results showed a lower serum total thyroxine level in the PCB126 and PCB114-treated groups than the control. Western blotting showed that the levels of transthyretin expression were significantly higher in the PCB-treated group than the control group. These results suggest that the PCB-mediated hypothyroidism is caused by the displacement of thyroxine from transthyretin. PMID: 19806282 [PubMed - as supplied by publisher] (Source: Bulletin of Environmental Contamination and Toxicology)
Source: Bulletin of Environmental Contamination and Toxicology - October 5, 2009 Category: Environmental Health Authors: Han DY, Kang SR, Park OS, Cho JH, Won CK, Park HS, Park KI, Kim EH, Kim GS Tags: Bull Environ Contam Toxicol Source Type: journals

Comparison of the Ability of Organic Acids and EDTA to Enhance the Phytoextraction of Metals from a Multi-Metal Contaminated Soil.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, we evaluated the ability of chelates to enhance the phytoextraction of metals by barnyard grass (Echinochloa crus-galli) from soils contaminated with multiple metals. The results revealed that EDTA increased the ability of barnyard grass to take up Cd, Cu and Pb, but that it resulted in increased soil leaching. Conversely, citric acid induced the removal of Cd, Cu and Pb from soil without increasing the risk of leaching. Furthermore, E.crus-galli showed no signs of phytotoxicity in response to treatment with citric acid, whereas its shoot growth decreased in response to treatment with EDTA (p < 0.05). Tak...
Source: Bulletin of Environmental Contamination and Toxicology - October 5, 2009 Category: Environmental Health Authors: Kim SH, Lee IS Tags: Bull Environ Contam Toxicol Source Type: journals

A Preliminary Study on the Occurrence of Cytostatic Drugs in Hospital Effluents in Beijing, China.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Cytostatic drugs are used in cancer therapy. They can enter hospital wastewater due to excretion by patients undergoing chemotherapy. Little attention has been paid to these drugs in China even though their usage is high. The effluents of 21 hospitals of different size in Beijing, China, were investigated on 1-7 different days. Nine cytostatic compounds (methotrexate, azathioprine, doxorubicin, doxorubicinol, vincristine, ifosfamide, cyclophosphamide, etoposide, and procarbazine) were tested. Of the 65 effluent samples analyzed, the median concentrations for methotrexate, azathioprine, ifosfamide, cyclophosphamide and ...
Source: Bulletin of Environmental Contamination and Toxicology - September 30, 2009 Category: Environmental Health Authors: Yin J, Shao B, Zhang J, Li K Tags: Bull Environ Contam Toxicol Source Type: journals

Effect Threshold for Selenium Toxicity in Juvenile Splittail, Pogonichthys macrolepidotus A.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In fish, selenium can bioaccumulate and cause adverse impacts. One of the fish species potentially at risk from selenium in the San Francisco Bay (California, USA) is the splittail (Pogonichthys macrolepidotus). Previous studies have derived a whole body NOAEL and LOAEL of 9.0 and 12.9 mg/kg-dw, respectively, for selenium in juveniles. However, the NOAEL/LOAEL approach leaves some uncertainty regarding the threshold of toxicity. Therefore, the raw data from the original experiment was re-analyzed using a logistic regression to derive EC(10) values of 0.9 mg/kg-dw in feed, 7.9 mg/kg-dw in muscle, 18.6 mg/kg-dw in liver ...
Source: Bulletin of Environmental Contamination and Toxicology - September 30, 2009 Category: Environmental Health Authors: Rigby MC, Deng X, Grieb TM, Teh SJ, Hung SS Tags: Bull Environ Contam Toxicol Source Type: journals

Effects of Exposing Two Non-Target Crustacean Species, Asellus aquaticus L., and Gammarus fossarum Koch., to Atrazine and Imidacloprid.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The physiological responses of two freshwater crustaceans, Asellus aquaticus L. and Gammarus fossarum Koch., following in vitro exposure to two pesticides were measured. Both species responded to short-term exposure with elevated levels of Respiration (R) and/or lower levels of Electron Transport System (ETS) activity. 1 h exposure to concentrations of up to 10 mg L(-1) showed an effect in both test species. Laboratory tests confirmed that G. fossarum is more sensitive to short-term pesticide exposure than A. aquaticus. ETS/R ratio may be used as a quick predictor of effects on organisms exposed to pesticides. PMID...
Source: Bulletin of Environmental Contamination and Toxicology - September 30, 2009 Category: Environmental Health Authors: Lukančič S, Zibrat U, Mezek T, Jerebic A, Simčič T, Brancelj A Tags: Bull Environ Contam Toxicol Source Type: journals

'Diarrhetic' Type Shellfish Poisoning in Nigeria.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The safety of shellfish found and consumed in Nigeria is doubtful because no investigations have been carried out on their toxicity. The occurrence and toxicity of toxins in the commonly consumed Nigerian shellfish from Lagos, Warri, Oron, and Port Harcourt (PH) were investigated. Albino Wistar mice treated with chloroform extract of hepatopancreas (HP) from PH shellfish died 7-8 min post treatment. They convulsed for 30-60 s prior to death. The aqueous phase obtained from the diethyl ether extraction of the same HP resulted in the death of one out of two mice injected with it, 39 min post treatment. PMID: 19789828...
Source: Bulletin of Environmental Contamination and Toxicology - September 29, 2009 Category: Environmental Health Authors: Igboeli OO, Asuzu IU Tags: Bull Environ Contam Toxicol Source Type: journals

Environmental Lead Exposure Among Children in Chengdu, China: Blood Lead Levels and Major Sources.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A survey was performed to know blood lead level (BLL) of children under seven and the risk factors of high BLL in Chengdu, China in 2004. The mean BLL in children under seven in Chengdu was 63.88 mug/L. The detection rate of high BLL was 8.21%. Chengdu is a moderate popular region of lead poisoning. Substitute of breast milk, living at the base floor or in one-storey houses and houses near the streets are the risk factors of high BLL (p < 0.05). The risk of anorexia, spasm and impaired concentration is higher in children whose BLL is higher than those whose BLL is lower (p < 0.05). Living circumstances, feeding p...
Source: Bulletin of Environmental Contamination and Toxicology - September 29, 2009 Category: Environmental Health Authors: Jiang YM, Shi H, Li JY, Shen C, Liu JH, Yang H Tags: Bull Environ Contam Toxicol Source Type: journals

Heavy Metal Exposure from Personal Care Products.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Numerous studies have described human exposure to heavy metals from diverse sources in Nigeria, but little is known about the exposure from personal care products, and few or no report is available on the personal care product concentrations of cadmium, chromium, copper and zinc, which have biotic effects. The levels of these elements were determined in 74 samples of 5 different classes of personal care products commonly used in Nigeria using atomic absorption spectrophotometry. Significant levels of Cd, Cr, Cu and Zn were found in all the products. The highest values of Cd (0.553 ppm) and Cu (0.783 ppm) were observed ...
Source: Bulletin of Environmental Contamination and Toxicology - September 29, 2009 Category: Environmental Health Authors: Ayenimo JG, Yusuf AM, Adekunle AS, Makinde OW Tags: Bull Environ Contam Toxicol Source Type: journals

Volatile Organic Compounds in a Residential and Commercial Urban Area with a Diesel, Compressed Natural Gas and Oxygenated Gasoline Vehicular Fleet.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Air samples were collected in a typical residential and commercial area in Rio de Janeiro, Brazil, where buses and trucks use diesel and light duty vehicles use compressed natural gas, ethanol, and gasohol (gasoline blended with ethanol) as fuel. A total of 66 C(3)-C(12) volatile organic compounds (VOCs) were identified. The most abundant compounds, on a mass concentration basis, included propane, isobutane, i-pentane, m,p-xylene, 1,3,5-trimethylbenzene, toluene, styrene, ethylbenzene, isopropylbenzene, o-xylene and 1,2,4-trimethylbenzene. Two VOCs photochemical reactivity rankings are presented: one involves reaction ...
Source: Bulletin of Environmental Contamination and Toxicology - September 28, 2009 Category: Environmental Health Authors: Martins EM, Arbilla G, Gatti LV Tags: Bull Environ Contam Toxicol Source Type: journals

Determination of Oxadiargyl Residues in Environmental Samples and Rice Samples.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Oxadiargyl is a commonly used herbicide in China. We developed a simple, fast, and high-throughput method employing gas chromatography with electron capture detector to determine oxadiargyl residues in food samples (rice, straws) and environmental samples (soil, water). Samples were prepared by a modified QuEChERS procedure. In this method, acetonitrile was used as the extracting solvent. The purifying step was omitted when the chromatographic conditions were optimized. Recoveries ranged from 82.9 to 112.0% for oxadiargyl in all samples, with relative standard deviation values lower than 6.2% at 0.01 mg/kg fortified co...
Source: Bulletin of Environmental Contamination and Toxicology - September 26, 2009 Category: Environmental Health Authors: Shi C, Gui W, Chen J, Zhu G Tags: Bull Environ Contam Toxicol Source Type: journals

Effect of (C(6)H (5)) (3)PbCl and (C (6)H (5)) (3)SnCl on Delayed Luminescence Intensity, Evolving Oxygen and Electron Transport Rate in Photosystem II of Chlorella vulgaris.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The effect of the organometallic compounds containing lead, (C(6)H(5))(3)PbCl, and tin, (C(6)H(5))(3)SnCl, on Chlorella green algae photosystem II was studied. Suspension of the algae treated with (C(6)H(5))(3)SnCl at concentrations of 1.0 and 4.0 mumol dm(-3) for 22 h revealed a decrease in most physiological parameters studied, particularly in decasecond component of delayed chlorophyll luminescence, photosynthetic electron transport rate and diluted oxygen concentration, which implies an inhibition of photosynthetic electron transport as well as oxygen evolving system. On the other hand, (C(6)H(5))(3)PbCl caused str...
Source: Bulletin of Environmental Contamination and Toxicology - September 26, 2009 Category: Environmental Health Authors: Murkowski A, Skórska E Tags: Bull Environ Contam Toxicol Source Type: journals

Permeation of a Metalworking Fluid Through a Latex Glove Under Field Use Conditions.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Whole glove testing for a metalworking fluid (MWF) in the field was performed for the first time. Green latex gloves used in a machine shop were exposed for 20 min to MWF. The permeated amount (1.0 +/- 0.5 mug/cm(2)) was higher than the threshold (0.25 mug/cm(2)) for the ASTM F739-99a closed-loop normalized breakthrough time. PMID: 19784533 [PubMed - as supplied by publisher] (Source: Bulletin of Environmental Contamination and Toxicology)
Source: Bulletin of Environmental Contamination and Toxicology - September 25, 2009 Category: Environmental Health Authors: Xu W, Que Hee SS Tags: Bull Environ Contam Toxicol Source Type: journals

Metal Accumulation and Growth Response in Vigna radiata L. Inoculated with Chromate Tolerant Rhizobacteria and Grown on Tannery Sludge Amended Soil.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The effects of inoculation of four chromate tolerant rhizobacterial strains previously isolated from rhizosphere of plants from chromium contaminated area in mung plant Vigna radiata grown on tannery sludge amended soil were evaluated. An increase of 138%, 88%, 256% and 54.14% in root length, shoot length, biomass and total chlorophyll, respectively was observed after 60 days of treatments by consortium. Similarly, a significant enhancement in Fe, Mn, Zn, Ni, Pb, Cr, Cu and Cd accumulation was observed in consortium inoculated plants as compared to non-inoculated plants. Results showed that rhizobacterial strain helps ...
Source: Bulletin of Environmental Contamination and Toxicology - September 25, 2009 Category: Environmental Health Authors: Singh NK, Rai UN, Tewari A, Singh M Tags: Bull Environ Contam Toxicol Source Type: journals

Heavy Metal Contamination in Phrynops geoffroanus (Schweigger, 1812) (Testudines: Chelidae) in a River Basin, São Paulo, Brazil.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study we evaluated 13 heavy metals in the blood of 37 Geoffroy's side-necked turtles, Phrynops geoffroanus, from Piracicaba River and Piracicamirim Creek, one of its tributaries. Blood levels of As, Co, Cr, Se and Pb varied among sites, whereas Sn varied between males and females. However, no obvious pathology was detected. Serum level of Cu (2,194 ng g(-1)) and Pb (1,150 ng g(-1)) found in this study are the highest ever described for any reptile; however, no clinical symptoms have been detected in the present study. There is no information about the time scale of such contamination, which could be currently subcl...
Source: Bulletin of Environmental Contamination and Toxicology - September 25, 2009 Category: Environmental Health Authors: Piña CI, Lance VA, Ferronato BO, Guardia I, Marques TS, Verdade LM Tags: Bull Environ Contam Toxicol Source Type: journals

Flame Atomic Absorption Spectrometric Determination of Pb, Cd, and Cu in Pinus nigra L. and Eriobotrya japonica Leaves Used as Biomonitors in Environmental Pollution.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The assessment of trace metal pollution in Gaziantep city-Turkey has been studied using plant leaves of Pinus nigra L. and Eriobotrya japonica as biomonitor. The concentrations up to 3,056 mg Pb kg(-1) in the needles of Pinus nigra L., and 367 ng Cd g(-1) in the leaves of Eriobotrya japonica were determined. The observed Cu concentrations were in range of 1.6-7.1 mg kg(-1). The Pb, Cd, and Cu levels in soils were determined to be in the range of 17-602, 0.142-0.656, and 12-38 mg kg(-1), respectively. It was concluded that Pinus nigra L. can be considered as both biomonitor of atmospheric Pb pollution and hyperaccumulat...
Source: Bulletin of Environmental Contamination and Toxicology - September 25, 2009 Category: Environmental Health Authors: Kaya G, Ozcan C, Yaman M Tags: Bull Environ Contam Toxicol Source Type: journals

Bioaccumulation of Total and Methyl Mercury in Three Earthworm Species (Drawida sp., Allolobophora sp., and Limnodrilus sp.).Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We determined total and methyl mercury contents in soil, three earthworm species and their vomitus to study the species-specific differences of mercury bioconcentration in Huludao City, a heavily polluted region by chlor-alkali and nonferrous metal smelting industry in Liaoning Province, northeast China. Total and methyl mercury contents were 7.20 mg/kg and 6.94 ng/g in soil, 1.43 mg/kg and 43.03 ng/g in Drawida sp., 2.80 mg/kg and 336.52 ng/g in Alolobophora sp., respectively. Total mercury contents were 0.966 mg/kg in Drawida sp. vomitus and 4.979 mg/kg in Alolobophora sp. vomitus, respectively. Total mercury content...
Source: Bulletin of Environmental Contamination and Toxicology - September 24, 2009 Category: Environmental Health Authors: Zhang ZS, Zheng DM, Wang QC, Lv XG Tags: Bull Environ Contam Toxicol Source Type: journals

Arsenic Resistant Bacteria Isolated from Arsenic Contaminated River in the Atacama Desert (Chile).Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, arsenic resistant bacteria were isolated from sediments of an arsenic contaminated river. Arsenic tolerance of bacteria isolated was carried out by serial dilution on agar plate. Redox abilities were investigated using KMnO4. arsC and aox genes were detected by PCR and RT-PCR, respectively. Bacterial populations were identified by RapID system. Forty nine bacterial strains were isolated, of these, 55 % corresponded to the reducing bacteria, 4% to oxidizing bacteria, 8% presented both activities and in 33% of the bacteria none activity was detected. arsC gene was detected in 11 strains and aox genes were not ...
Source: Bulletin of Environmental Contamination and Toxicology - September 24, 2009 Category: Environmental Health Authors: Escalante G, Campos VL, Valenzuela C, Yañez J, Zaror C, Mondaca MA Tags: Bull Environ Contam Toxicol Source Type: journals

Air-Borne Heavy Metal Contamination to Dietary Vegetables: A Case Study from India.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Contamination of edible parts of three dietary vegetables, Spinach (Spinacia oleracea L.), Radish (Raphanus sativus L.), and Tomato (Lycopersicon esculentum Mill.) by air-borne cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), and lead (Pb) was determined using pot culture experiments at three sites in the city of Varanasi, India. The data revealed that although Cr and Cu in vegetables remained below their safe limits, about 68% of the total samples contained Cd, Ni, and Pb above their respective safe limits of 1.5, 1.5, and 2.5 mug g(-1). Site wise synchrony and air accumulation factor (AAF) indicated that atmosp...
Source: Bulletin of Environmental Contamination and Toxicology - September 21, 2009 Category: Environmental Health Authors: Pandey J, Pandey R, Shubhashish K Tags: Bull Environ Contam Toxicol Source Type: journals

Organic-Solvent-Free Extraction Method for Determination of Carbamate and Carbamoyloxime Pesticides in Soil and Sediment Samples.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study evaluated the usefulness of monochloroacetic acid buffer (MCAAB) for extracting several carbamate/carbamoyloxime pesticides from a silt-loam soil and sediment, and an organic clay soil. The MCAAB extraction method, relative to acetonitrile and methanol extractants, was more accurate and precise for extraction of aldicarb, aldicarb sulfoxide, aldicarb sulfone, oxamyl, methomyl, carbofuran, 3-hydroxy-carbofuran, and propoxur; with recoveries ranging from 78.8% to 121.1%. Recoveries of carbaryl and methiocarb ranged from 0% to 64.1%. The MCCAB extraction method did not perform well for extraction of most compounds ...
Source: Bulletin of Environmental Contamination and Toxicology - September 21, 2009 Category: Environmental Health Authors: Lu H, Lin Y, Chris Wilson P Tags: Bull Environ Contam Toxicol Source Type: journals

Human Health Risk Assessment of Environmental Exposure to Organochlorine Compounds in the Catalan Stretch of the Ebro River, Spain.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, the environmental impact and human health risks associated with exposure to organochlorine compounds (OCs) through soils and tap water in the Catalan stretch of the Ebro River, Spain, were investigated. The concentrations of polychlorinated biphenyls, hexachlorocyclohexanes, as well as DDT and derivates, were determined. Relatively low levels of these pollutants were observed, with mean concentrations ranging between 0.51-315.8 mug/kg and 0.05-74.6 ng/L in soil and tap water, respectively. These values are similar to those found in a number of recent surveys over the world. In spite of the presence of a chlo...
Source: Bulletin of Environmental Contamination and Toxicology - September 21, 2009 Category: Environmental Health Authors: Ferré-Huguet N, Bosch C, Lourencetti C, Nadal M, Schuhmacher M, Grimalt JO, Domingo JL Tags: Bull Environ Contam Toxicol Source Type: journals

Probabilistic Ecological Risk Assessment and Source Apportionment of Polycyclic Aromatic Hydrocarbons in Surface Sediments from Yellow Sea.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Based on the concentrations of polycyclic aromatic hydrocarbons (PAHs) in 12 surface sediment samples from Yellow sea, the relative risk of 9 PAHs was investigated using joint risk probability distribution curves and overlapping area, which were generated based on the distributions of exposure and acute toxicity data (LC(50)), and the sources of PAHs were apportioned using principal component analysis. It was found that joint probability curve and overlapping area indicated the acceptable ecological risk of individual PAHs, only a small fraction of the benthic organisms was affected. Among the nine PAHs studied, the ov...
Source: Bulletin of Environmental Contamination and Toxicology - September 21, 2009 Category: Environmental Health Authors: Liu AX, Lang YH, Xue LD, Liao SL, Zhou H Tags: Bull Environ Contam Toxicol Source Type: journals

Vertical Fluxes and Accumulation of Trace Metals in Superficial Sediments of the Río de la Plata Estuary, Argentina.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Vertical Fluxes and Accumulation of Trace Metals in Superficial Sediments of the Río de la Plata Estuary, Argentina. Bull Environ Contam Toxicol. 2009 Sep 19; Authors: Tatone LM, Bilos C, Skorupka CN, Colombo JC Superficial sediments and settling material collected in Buenos Aires coastal area were analyzed to evaluate the accumulation and sources of trace metals. Residual elements showed homogeneous sedimentary concentrations (Fe: 23,846 +/- 4,367; Ni: 10 +/- 2.7; Mn: 706 +/- 314 mug g(-1)) whereas anthropogenic metals presented exponentially decreasing offshore gradients (Zn: 98 +/- 69; Cr: 28 +/- 21; Cu...
Source: Bulletin of Environmental Contamination and Toxicology - September 18, 2009 Category: Environmental Health Authors: Tatone LM, Bilos C, Skorupka CN, Colombo JC Tags: Bull Environ Contam Toxicol Source Type: journals

(210)Pb in Forage Consumed by Dairy Cows.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The aim of this research was to determine (210)Pb concentrations in forage from farms located in the municipalities of Pedra and Venturosa, in the Brazilian state of Pernambuco, where rolled blocks of mafic rock with a high percentage of U(3)O(8) were found. The concentrations of (210)Pb varied from 2 to 503 Bq kg(-1) in the forage dry matter samples evaluated. Due to the elevated levels of (210)Pb in the forage samples, it is concluded that this radionuclide is highly available to be ingested by dairy cows and this could represent a hazard to the human population due to possible milk contamination. PMID: 19768357 ...
Source: Bulletin of Environmental Contamination and Toxicology - September 18, 2009 Category: Environmental Health Authors: Silva CM, Amaral RS, Tabosa JN, Santos Júnior JA, Menezes RS, Farias EE, Filho CA, Ribeiro FC Tags: Bull Environ Contam Toxicol Source Type: journals

Metal Accumulation and Antioxidant Enzyme Activity in C. gariepinus, Catfish, and O. mossambicus, Tilapia, Collected from Lower Mguza and Wright Dams, Zimbabwe.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The aim of this study was to measure antioxidant enzyme activities as biological indicators of pollution in tissues of two species of fish. Five Clarius gariepinus and three Oreochromis mossambicus were collected from Umguza Dam (polluted dam) whilst seven C. gariepinus and eight O. mossambicus were collected from Wright Dam (relatively pristine dam). Diphosphotriphoshodiaphorase and catalase activities were consistently lower (42 +/- 2% and 78 +/- 20%, respectively) in liver whilst malondialdehyde levels were two times higher in muscles of both species of fish collected from Umguza Dam. However, selenium-dependent glu...
Source: Bulletin of Environmental Contamination and Toxicology - September 18, 2009 Category: Environmental Health Authors: Siwela AH, Nyathi CB, Naik YS Tags: Bull Environ Contam Toxicol Source Type: journals

Effect of Cadmium Accumulation on Anti-Inflammatory Activity in Two Eucomis Species.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Eucomis species (Hyacinthaceae) are widely used in South Africa as traditional medicine. The bulbs are used to alleviate a variety of symptoms including pain and inflammation. High levels of cyclooxygenase-1 and -2 (COX-1 and COX-2) inhibitory activity have been associated with certain Eucomis species. The aim of this study was to quantify cadmium (Cd) accumulation and examine its effect on COX-1 and COX-2 anti-inflammatory activity in Eucomis autumnalis and Eucomis humilis. Cadmium application at 2 mg L(-1) over a 6 week period revealed a substantial difference in total Cd accumulation in E. autumnalis and E. humilis ...
Source: Bulletin of Environmental Contamination and Toxicology - September 18, 2009 Category: Environmental Health Authors: Street RA, Elgorashi EE, Kulkarni MG, Stirk WA, Southway C, Van Staden J Tags: Bull Environ Contam Toxicol Source Type: journals

High Concentrations of Polycyclic Aromatic Hydrocarbons Found in Water and Sediments of Car Wash and Kisat Areas of Winam Gulf, Lake Victoria-Kenya.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Mean concentrations of selected USEPA priority polycyclic aromatic hydrocarbons (PAHs) in surface sediments and water samples from Car Wash and Kisat areas of Winam Gulf, Lake Victoria in Kenya have been determined using GC-FID and GC-MS. Sampling was done during the rainy season in April 2006. The PAH concentrations in sediment and water ranged from 0.04 to 31.95 mug/g dry weight and 3.32 to 55.8 mug/L, respectively, depending upon the sampling location. The total concentration levels of PAHs in both the sediment and water phase in this study were found to be much higher compared with those reported from other regions...
Source: Bulletin of Environmental Contamination and Toxicology - September 18, 2009 Category: Environmental Health Authors: Kwach BO, Lalah JO Tags: Bull Environ Contam Toxicol Source Type: journals

Estimated PBDE and PBB Congeners in Soil from an Electronics Waste Disposal Site.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study estimated PBDE and PBB congener emissions into the environment from three different e-waste disposal sites that consisted of rude broilers (RB), acid baths (AB) and end-up dumps (ED). Different PBDE and PBB congener profiles were analyzed, and some of their emission sources were discussed. For the examined sites, the levels of SigmaPBB and SigmaPBDE were highest at ED (SigmaPBB 1943.86 ng/g, dw; SigmaPBDE 990.87 ng/g, dw), followed by RB (SigmaPBB 704.58 ng/g, dw; SigmaPBDE 799.27 ng/g, dw) and finally AB (SigmaPBB 108.78 ng/g, dw; SigmaPBDE 171.18 ng/g, dw). PBE-209 (AB 48.67 ng/g, 28.43%; RB 160.23 ng/g, 20.05...
Source: Bulletin of Environmental Contamination and Toxicology - September 18, 2009 Category: Environmental Health Authors: Wang HM, Yu YJ, Han M, Yang SW, Li Q, Yang Y Tags: Bull Environ Contam Toxicol Source Type: journals

Mercury, Lead and Copper in Feathers and Excreta of Small Passerine Species in Relation to Foraging Guilds and Age of Feathers.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In the present study excreta and feathers of five species of adult passerine birds from Montepulciano wetland (Siena, Italy) were assayed for trace elements between January and August 2006. Lead concentrations varied from 16.31 to 26.50 mg/kg and were found strictly related to the age of feathers. Copper levels were found to be high mainly in insectivorous birds (9.68 mg/kg) and were probably influenced by local use of copper-based agricultural fungicides. Mercury accumulation in feathers varied between species from 0.08 to 0.73 mg/kg. The role of feeding habits on trace elements levels in feathers and excreta is discu...
Source: Bulletin of Environmental Contamination and Toxicology - September 18, 2009 Category: Environmental Health Authors: Leonzio C, Bianchi N, Gustin M, Sorace A, Ancora S Tags: Bull Environ Contam Toxicol Source Type: journals

Determination of Polychlorinated Biphenyl Congeners in Water and Sediment in North West Persian Gulf, Iran.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Polychlorinated biphenyl (PCB) was detected as isomer groups (congener numbers 28, 52, 101, 118, 138, 153 and 180) in the coastal water and sediment of four stations around Shadegan wetland protected area in the northwestern part of the Persian Gulf. Total PCB concentration range was 8-375 ng/L in water and 3.4-50.2 mug/g in sediment. Concentration of different congeners and chromatogram indicates that the source of PCB in this area can be Clophen A60; it used for long time in Iranian electronic industries. Other chlorinated hydrocarbons such as lindane, DDT and their metabolites were also present in the samples. P...
Source: Bulletin of Environmental Contamination and Toxicology - September 17, 2009 Category: Environmental Health Authors: Zahed MA, Nabi Bidhendi G, Pardakhti A, Esmaili-Sari A, Mohajeri S Tags: Bull Environ Contam Toxicol Source Type: journals

Polybrominated Diphenyl Ethers in the Atmosphere of Taizhou, a Major E-Waste Dismantling Area in China.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Concentrations, congener profiles, gas-particle partitioning and size distributions of polybrominated diphenyl ethers (PBDEs) in the atmosphere of Taizhou were studied to evaluate the impact of e-waste recycling on the environment. Total concentration of 13 PBDEs near the e-waste dismantling area was 506 pg m(-3) in summer and 1,662 pg m(-3) in winter, about 7 times higher than that of the reference urban site, but much lower than that of Guiyu, another major e-waste dismantling area in China. This should be attributable to the centralized management measures taken in recent years in Taizhou. BDE-209 was the major cong...
Source: Bulletin of Environmental Contamination and Toxicology - September 17, 2009 Category: Environmental Health Authors: Han W, Feng J, Gu Z, Chen D, Wu M, Fu J Tags: Bull Environ Contam Toxicol Source Type: journals

Polychlorinated Biphenyl Congeners in the Aquatic Environment of the Mekong River, South of Vietnam.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Polychlorinated biphenyl compounds (PCBs) were analyzed in sediments and clams' soft tissues from sampling sites in the Mekong River delta from the border with Cambodia to the coast of South China Sea. Concentrations of 13 individual PCB congeners are reported. Median concentration of SigmaPCB congeners was 0.279 ng g(-1) dry weight (range 0.106-2.016 ng g(-1) dry weight) in sediments, and 5.20 ng g(-1) dry weight (range 1.89-19.37 ng g(-1)) in clams. Distribution and bioaccumulation of PCBs in the delta are discussed. It is concluded that in the Mekong River delta PCB concentrations were generally lower than in other ...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2009 Category: Environmental Health Authors: Carvalho FP, Villeneuve JP, Cattini C, Thuan DD, Nhan DD Tags: Bull Environ Contam Toxicol Source Type: journals

Impact of N,N-Dimethylformamide from Domestic Effluents on River Waters.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The impacts of N,N-dimethylformamide (DMF) from domestic effluents on rivers were evaluated. The hourly DMF concentrations in the inflows (0.21-0.52 mug/L in mean) and the outflows (0.18-0.62 mug/L in mean) of two sewage treatment plants did not show any characteristic variations, and DMF was not removed at both plants. The monthly variations of DMF in the outflows of four sewage treatment plants (0.16-0.62 mug/L in mean) and three rivers (0.06-0.11 mug/L in mean) into which the outflows of the plants were discharged did not show any significant variations. The domestic DMF load per person was calculated to be 0.25 mg/...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2009 Category: Environmental Health Authors: Tanabe A, Kawata K Tags: Bull Environ Contam Toxicol Source Type: journals

Genotoxic Effects of the Insecticide Cypermethrin on the Root Meristem Cells of Sunflowers (Helianthus annuus L.).Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, the genotoxic effects of the insecticide cypermethrin on the root meristem cells of sunflowers (Helianthus annuus L.) were investigated. The roots were treated with 10- 25- 50- and 100-ppm concentrations of cypermethrin for 6, 12 and 24 h. The mitotic index and mitotic abnormalities were determined in both control and test groups. The cypermethrin showed a marked mitodepressive action on mitosis. The types of mitotic abnormalities included disturbed metaphase, c-mitosis, stickiness, laggards and chromatid bridges. A pronounced toxic effect was observed at the 50-ppm concentration. Cypermethrin may have genot...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2009 Category: Environmental Health Authors: Inceer H, Hayirlioglu-Ayaz S, Ozcan M Tags: Bull Environ Contam Toxicol Source Type: journals

Distribution of Mercury Pollution and Its Source in the Soils and Vegetables in Guilin Area, China.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Soils and vegetables were sampled and analyzed from nine vegetable fields in Guilin area, China. The average mercury (Hg) concentrations varied from 0.099 to 0.546 mg/kg in soils and from 0.046 to 0.132 mg/kg in plants. The distribution of Hg pollution in plants was correlated with that in soils. Generally, the Hg concentration in the plants decreased with the increasing distance between sampling sites and the city center. The Hg existed mostly in leaves of the plants, and then in their roots and stems, which suggested that the Hg in the atmosphere might be an important source of Hg in plants. PMID: 19760342 [PubMe...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2009 Category: Environmental Health Authors: Qian J, Zhang L, Chen H, Hou M, Niu Y, Xu Z, Liu H Tags: Bull Environ Contam Toxicol Source Type: journals

Dissipation of Profenofos, Imidacloprid and Penconazole in Tomato Fruits and Products.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
An experiment was conducted to evaluate the effects of some technological processes on the residual levels of profenofos, imidacloprid and penconazole in tomato fruits and products. According to their half-life (t ((1/2))) values, tomato fruits can be safely harvested for human consumption or for processing purposes 3 days after the spray time of imidacloprid and penconazole and 7 days after in the case of profenofos. Pesticide residues were greatly decreased in tomato juice under cold or hot break compared with that taken from unwashed tomato fruits. A sharp decline in profenofos level was noted after treatment by pec...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2009 Category: Environmental Health Authors: Romeh AA, Mekky TM, Ramadan RA, Hendawi MY Tags: Bull Environ Contam Toxicol Source Type: journals