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Remarkable N < sub > 2 < /sub > selectivity enhancement of NH < sub > 3 < /sub > -SCO reactions over V < sub > 0.5 < /sub > /Pt < sub > 0.04 < /sub > /TiO < sub > 2 < /sub > catalyst through Cu-Er co-modification
Environ Sci Pollut Res Int. 2023 Sep 18. doi: 10.1007/s11356-023-29781-2. Online ahead of print.ABSTRACTPt-V bimetallic catalysts maybe promising substitutes to precious metal catalysts for selective catalytic oxidation (SCO) of NH3. But it remains a major challenge for Pt-V bimetallic catalysts to pursue high NH3 conversion rate and N2 selectivity simultaneously. In this work, both Cu and Er were adopted to modify V0.5/Pt0.04/TiO2 catalyst (denoted as V/PT), and the influences of Cu and Er doping amounts on NH3-SCO performance of V/PT catalysts were investigated systematically. The results indicated that the co-modificati...
Source: Environmental Science and Pollution Research International - September 17, 2023 Category: Environmental Health Authors: Yu Gao Zhitao Han You Tian Shijian Lu Xinxiang Pan Source Type: research
Health justice and economic segregation in climate risks: Tracing vulnerability and readiness progress
Health Place. 2023 Sep 15;84:103113. doi: 10.1016/j.healthplace.2023.103113. Online ahead of print.ABSTRACTClimate vulnerability can make urban space unhealthy and accentuate existing health (in)justice and (economic) segregation. Drawing on the vulnerability-readiness nexus and measuring health justice (i.e., health poverty, health distribution, and health access) and economic segregation (through indices), we strive to investigate the plausible pathways of the two constructs at the heat risks. Our work, focusing on metropolitan cities in South Korea, addresses the role of heat vulnerability and readiness nexus regarding ...
Source: Health and Place - September 17, 2023 Category: Environmental Health Authors: Hyun Kim Dujin Park Gyu Seomun Hyewon Kim Kyle Maurice Woosnam Bong Jik Kim Source Type: research
Surface activity, kinetics, thermodynamics and comparative study of adsorption of selected cationic and anionic dyes onto H < sub > 3 < /sub > PO < sub > 4 < /sub > -functionalized bagasse from aqueous stream
Environ Sci Pollut Res Int. 2023 Sep 18. doi: 10.1007/s11356-023-29870-2. Online ahead of print.ABSTRACTThe discharge of dyes into the water body creates toxicity to aquatic organisms because of their aromatic structure and difficult degradation. So, the treatment of dye-contaminated wastewater is required before releasing it. In the present study, thermally treated (600 °C) and H3PO4 (55%)-functionalized bagasse, henceforth called thermochemically activated bagasse (TCAB), was synthesized as potential adsorbent for the effective removal of selected cationic and anionic dyes from their aqueous stream. TCAB characterizatio...
Source: Environmental Science and Pollution Research International - September 17, 2023 Category: Environmental Health Authors: Kaman Singh Utkarsh Dixit Madhu Lata Source Type: research
Exploring the bioremediation capability of petroleum-contaminated soils for enhanced environmental sustainability and minimization of ecotoxicological concerns
Environ Sci Pollut Res Int. 2023 Sep 18. doi: 10.1007/s11356-023-29801-1. Online ahead of print.ABSTRACTThe bioremediation of soils contaminated with petroleum hydrocarbons (PHCs) has emerged as a promising approach, with its effectiveness contingent upon various types of PHCs, i.e., crude oil, diesel, gasoline, and other petroleum products. Strategies like genetically modified microorganisms, nanotechnology, and bioaugmentation hold potential for enhancing remediation of polycyclic aromatic hydrocarbon (PAH) contamination. The effectiveness of bioremediation relies on factors such as metabolite toxicity, microbial competi...
Source: Environmental Science and Pollution Research International - September 17, 2023 Category: Environmental Health Authors: Rida Zainab Maria Hasnain Faraz Ali Daniel Anthony Dias Ali El-Keblawy Zainul Abideen Source Type: research
The combined effects of nitrogen fertilizer and biochar on soil aggregation, N < sub > 2 < /sub > O emission, and yield from a vegetable field in southeastern China
This study aims to evaluate the combined effects of biochar and nitrogen (N) fertilizer on soil aggregation, nitrous oxide (N2O) emission, global warming potential (GWP), vegetable yield, and greenhouse gas intensity (GHGI). The experiments were conducted in a vegetable field with two consecutive vegetable crops in 2019 and 2020 in southeastern China. There were four treatments: control (CK), conventional N fertilizer (U), biochar applied at 15 t ha-1 with N fertilizer (UB1), and biochar applied at 30 t ha-1 with N fertilizer (UB2). The results indicate that while N application significantly increased N2O emission of the v...
Source: Environmental Science and Pollution Research International - September 17, 2023 Category: Environmental Health Authors: Ying Han Jing Ma Xianghua Xu Xinyu Lu Ziyao Wang Liying Sun Source Type: research
Enhanced Adsorption of Hexavalent Chromium from Aqueous Solutions by Iron- manganese Modified Cedarwood Biochar: Synthesis, Performance, Mechanism, and Variables
Bull Environ Contam Toxicol. 2023 Sep 16;111(3):43. doi: 10.1007/s00128-023-03802-9.ABSTRACTThree modified biochar (Cunninghamia lanceolata) with iron and manganese elementals (FMBCs) were successfully prepared and used to remove hexavalent chromium (Cr(VI)) from aqueous solutions. The biochar before and after decoration were characterized by advanced instruments. The adsorption capacities of modified biochar in different Cr(VI) (20 mg·L- 1, 1 mg·L- 1) solutions were 4868.28 mg·kg- 1 and 300 mg·kg- 1. The Cr(VI) removal was highest at pH 2. The possible adsorption was considered to be ion exchange adsorption, chemisorp...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2023 Category: Environmental Health Authors: Jizhuang Chu Shuhan Xin Yihang He Xin Gao Xin Zhou Yingqi Zhang Xinxin Liu Xinru Zhang Shiliang Wang Source Type: research
Environmental Consequences of Intensive Aquaculture Practices at Moyna Purba Medinipur West Bengal India with Special Reference to Carbon Footprint and Carbon Sequestration
Bull Environ Contam Toxicol. 2023 Sep 16;111(3):44. doi: 10.1007/s00128-023-03798-2.ABSTRACTMoyna of Purba Medinipur district is widely known as an aquaculture hub of West Bengal, India. Though very good production is achievable from this fish culture system, management practices are inappropriate, which could create the sustainability problem of this culture system. The present study was thus undertaken for the estimation of plankton population, water quality, carbon footprint and carbon sequestration of this intensive aquaculture practices. Information on spawn to fry, fry to fingerlings and grow-out culture were collect...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2023 Category: Environmental Health Authors: S Adhikari R N Mandal B N Paul F Hoque A Das A Hussan D N Chattopadhyay P P Chakrabarti G S Saha P K Sahoo Source Type: research
Se Ameliorates Cd Toxicity in Oilseed rape (Brassica napus L.) Seedlings by Inhibiting Cd Transporter Genes and Maintaining root Plasma Membrane Integrity
Bull Environ Contam Toxicol. 2023 Sep 16;111(3):42. doi: 10.1007/s00128-023-03804-7.ABSTRACTSe (Selenium) has been reported to be an important protective agent to decreases Cd (Cadmium) induced toxic in plants. However, it remains unclear how Se mitigates the uptake of Cd and increased the resistance to Cd toxicity. Hydroponic experiments were arranged to investigate the changes of physiological properties, root cell membrane integrity and Cd-related transporter genes in rape seedlings. Comparison of the biomass between the addition of Se and the absence of Se under Cd exposure showed that the Cd-induced growth inhibition ...
Source: Bulletin of Environmental Contamination and Toxicology - September 16, 2023 Category: Environmental Health Authors: Yanni Tang Yuanyuan Zhao Yingjie Zhou Shiqian Li Chihhung Wu Guangyu Shi Chengxiao Hu Xiaohu Zhao Source Type: research
A metabolomic investigation of serum perfluorooctane sulfonate and perfluorooctanoate
CONCLUSIONS: In this large metabolomic study, we observed robust positive associations with PFOS for several molecules. Further investigation of these metabolites may offer insight into PFOS-related biologic effects.PMID:37716341 | DOI:10.1016/j.envint.2023.108198
Source: Environment International - September 16, 2023 Category: Environmental Health Authors: Jongeun Rhee Erikka Loftfield Demetrius Albanes Tracy M Layne Rachael Stolzenberg-Solomon Linda M Liao Mary C Playdon Sonja I Berndt Joshua N Sampson Neal D Freedman Steven C Moore Mark P Purdue Source Type: research
Macroplastic fragmentation in rivers
Environ Int. 2023 Sep 7;180:108186. doi: 10.1016/j.envint.2023.108186. Online ahead of print.ABSTRACTThe process of macroplastic (>0.5 cm) fragmentation results in the production of smaller plastic particles, which threaten biota and human health and are difficult to remove from the environment. The global coverage and long retention times of macroplastic waste in fluvial systems (ranging from years to centuries) create long-lasting and widespread potential for its fragmentation and the production of secondary micro- and nanoplastics. However, the pathways and rates of this process are mostly unknown and existing experi...
Source: Environment International - September 16, 2023 Category: Environmental Health Authors: Maciej Liro Anna Zielonka Tim H M van Emmerik Source Type: research
Particle transfer mediates dermal exposure of consumers to plasticizers in eraser and pen accessories
The objective of the present study was to determine the potentiality of particles release from intact erasers and pen grips upon dermal contact by measuring the migration rates of the embedded plasticizers (phthalates and its alternatives). The results showed that billions of particles were released from erasers (0.6-1.2 × 109) and pen grips (0.2-1.6 × 108) upon dermal contact at ambient temperature, with sizes mainly smaller than 1 μm. The composition of eraser leachates was identical to that of the corresponding bulk eraser, as confirmed by Fourier-transform infrared spectroscopy and pyrolysis. Migrated hydrophobic pl...
Source: Environment International - September 16, 2023 Category: Environmental Health Authors: Chen-Chou Wu Chun-Yan Chen Li-Shan Zhong Lian-Jun Bao Eddy Y Zeng Source Type: research
Melatonin or vitamin C attenuates lead acetate-induced testicular oxidative and inflammatory damage in mice by inhibiting oxidative stress mediated NF- κB signaling
In this study, we aimed to determine the effects of lead acetate on reproductive function in male mice, identify the underlying mechanisms, and test counter measures to alleviate the toxic effects. Male mice were dosed with lead acetate (500 mg/L) in free drinking water for 12 weeks, and administered melatonin (5 mg/kg) or vitamin C (500 mg/kg) by intraperitoneal injection. Blood from the eyeball, testicles, and sperm from the caudal epididymis were collected after 12 weeks and analyzed. Pb exposure reduced sperm count and motility, increased sperm malformation (P < 0.01), disrupted testicular morphology and structure, ...
Source: Ecotoxicology and Environmental Safety - September 16, 2023 Category: Environmental Health Authors: Ze-Min Zhao Su Mei Qi-Yue Zheng Jiao Wang Yi-Ru Yin Jiao-Jiao Zhang Xian-Zhong Wang Source Type: research
A family of kojic acid derivatives aimed to remediation of Pb < sup > 2+ < /sup > and Cd < sup > 2 < /sup >
Ecotoxicol Environ Saf. 2023 Sep 14;264:115470. doi: 10.1016/j.ecoenv.2023.115470. Online ahead of print.ABSTRACTThe present work analyzes the complex formation ability towards Pb2+ and Cd2+ of a series of kojic acid derivatives that join the chelating properties of the pyrone molecules and those of polyamines, with the aim of evaluating how the different effects of oxygen and nitrogen coordinating groups act on the stability of metal complexes. Experimental research is carried out using potentiometric and spectrophotometric techniques supported by 1H and 13C NMR spectroscopy and DFT calculations. Actually, a different coo...
Source: Ecotoxicology and Environmental Safety - September 16, 2023 Category: Environmental Health Authors: Rosita Cappai Alessandra Fantasia Giampaolo Barone Massimiliano F Peana Alessio Pelucelli Serenella Medici Guido Crisponi Valeria M Nurchi M Antonietta Zoroddu Source Type: research
Nonstationary relationships among individuals' concurrent exposures to noise, air pollution and greenspace: A mobility-based study using GPS and mobile sensing data
Health Place. 2023 Sep 14;83:103115. doi: 10.1016/j.healthplace.2023.103115. Online ahead of print.ABSTRACTIndividuals are often exposed to multiple environmental factors simultaneously. Understanding their joint effects is essential for developing effective public health policies. However, there has been a lack of research examining individuals' concurrent exposures to multiple environmental factors during people's daily mobility. To address this gap, this study investigated the relationships between and geographic patterns of individual exposures to air pollution (PM2.5), noise and greenspace using individual-level real-...
Source: Health and Place - September 16, 2023 Category: Environmental Health Authors: Zihan Kan Mei-Po Kwan Jiannan Cai Yang Liu Dong Liu Source Type: research
