Comparison of the performance of SWAT and hybrid M5P tree models in rainfall-runoff simulation
In conclusion, this study shows the effectiveness of the hybrid M5P tree model in stream flow forecasting. The research contributes valuable insights into improved water resource management and underscores the importance of selecting appropriate models based on their performance and suitability for specific hydrological forecasting tasks.PMID:38678419 | DOI:10.2166/wh.2024.022 (Source: Journal of Water and Health)
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Shailesh Kumar K K Pandey Ajay Ahirwar Source Type: research
Human health risk assessment framework for new water resource recovery-based bio-composite materials
J Water Health. 2024 Apr;22(4):652-672. doi: 10.2166/wh.2024.168. Epub 2024 Feb 22.ABSTRACTA new type of bio-composite material is being produced from water-recovered resources such as cellulose fibres from wastewater, calcite from the drinking water softening process, and grass and reed from waterboard sites. These raw materials may be contaminated with pathogens and chemicals such as Escherichia coli, heavy metals, and resin compounds. A novel risk assessment framework is proposed here, addressing human health risks during the production of new bio-composite materials. The developed framework consists of a combination of...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Arianna Nativio Oriana Jovanovic Zoran Kapelan Jan Peter van der Hoek Source Type: research
Occurrence of coliforms and biofilm-forming bacteria in raw, treated, and distributed water from two waterwork systems in Osun State, Southwestern Nigeria
This study assessed the bacteriological quality of raw, treated, and distributed water from Ede-Erinle and Opa reservoirs in Osun State, Nigeria. This was to determine the potability of water from these waterwork stations. Eighteen sampling points were established across the two reservoir networks for this study. Samples were collected bi-monthly for two annual cycles. Serial dilution and pour plate methods were employed for the enumeration of bacterial load. Total heterotrophic bacteria count (THBC) and total coliform bacteria count (TCBC) were enumerated on nutrient and MacConkey agar at 37 °C, respectively. Bacterial i...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Abayomi Tolulope Oyewale Babatunde Wumi Odetoyin Anthonia Olufunke Oluduro Israel Funso Adeniyi Source Type: research
Detection of metallo-beta-lactamase-producing genes < em > bla < /em > < sub > SPM < /sub > and < em > bla < /em > < sub > NDM < /sub > in < em > Pseudomonas aeruginosa < /em > isolated from wastewater in Southern Brazil
The objective of this study was to investigate genes encoding metallo-beta-lactamases (MBLs), which confer resistance to carbapenems, in wastewater. Fifteen isolates of P. aeruginosa were collected for five months from samples obtained from a municipal wastewater treatment plant in Rio Grande do Sul. These isolates were subjected to disk diffusion testing using 10 different antimicrobials. Phenotypic enzymatic tests for MBLs were conducted, and positive isolates underwent DNA extraction and gene detection using the polymerase chain reaction. The resistance rate to ceftazidime was 100%, cefepime 73.3%, piperacillin-tazobact...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Vin ícius Monteagudo de Barros Bruna Seixas da Rocha Jaqueline Rhoden Jana ína Franciele Stein Simone Ulrich Picoli Caroline Rigotto Source Type: research
Health risk analysis of nitrate in groundwater in Shanxi Province, China: A case study of the Datong Basin
J Water Health. 2024 Apr;22(4):701-716. doi: 10.2166/wh.2024.320. Epub 2024 Mar 18.ABSTRACTIn order to identify and effectively control the impact of NO3- pollution on human health, on the basis of investigation, sampling, analysis and testing, statistical analysis software (SPSS19), groundwater pollution analysis software, Nemera comprehensive index method, correlation analysis method and human health risk assessment model are applied for analysis and research. The results indicate that the groundwater in the study area is mainly Class II water, with overall good water quality. The main influencing factors for producing C...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Qifa Sun Guohui Lang Tao Liu Zhijie Liu Jilin Zheng Source Type: research
Poliomyelitis and COVID-19: a repeated history
J Water Health. 2024 Apr;22(4):717-720. doi: 10.2166/wh.2024.327. Epub 2024 Feb 22.ABSTRACTThe measurement of the enterovirus and the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in sewage water is relevant in the early detection of the introduction or disappearance of these viruses in the ecosystem. We evaluated the co-circulation of the enteroviruses and SARS-CoV-2 in 81 sewage water samples collected between September 2021 and April 2023 from different regions of north and southeast Romania, at the border with Ukraine. We used, for the molecular detection of the pathogens, the multiplex real-time polymer...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Baicus Anda Source Type: research
Prevalence of antimicrobial resistance, biofilm formation, efflux pump activity, and virulence capabilities in multi-drug-resistant < em > Klebsiella pneumoniae < /em > isolated from freshwater fish farms
J Water Health. 2024 Apr;22(4):721-734. doi: 10.2166/wh.2024.382. Epub 2024 Apr 2.ABSTRACTThe present study aimed to determine the antibiotic resistance, underlying mechanisms, antibiotic residues, and virulence genes involved in 32 multi-drug-resistant Klebsiella pneumoniae isolates from freshwater fishes in Andhra Pradesh, India. Antibiogram studies revealed that all isolates were multi-drug-resistant, harbored tetA (96.8%), tetC (59.3%), tetD (71.9%), nfsA (59.3%), nfsB (53.1%), sul2 (68.7%), qnrC (43.7%), qnrD (50%), blaSHV (75%), blaTEM (68.7%), and blaCTX-M (93.7%) genes. Multiple antibiotic resistance index was calc...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Kummari Suresh Devika Pillai Source Type: research
Effect of exposure to disinfection by-products during swimming exercise on asthma-related immune responses
In this study, we investigated the influence of swimming exercise and DBPs on asthma. The decomposition products had little effect on the number of T cells in various immune organs. However, swimming exercise was found to increase the cell count in proportion to the exercise duration. Nevertheless, there were no significant changes in other immune cells and the secretion of asthma-related cytokines. These findings indicate that the effects of swimming pool DBPs on respiratory conditions during swimming exercise are either negligible or absent, and instead, the immunological benefits gained through consistent swimming exerc...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Bo-Ae Lee Source Type: research
Occurrence of sulfate-reducing bacteria in well water: identification of anaerobic sulfidogenic bacterial enrichment cultures
In this study, the presence of SRB and coexisting anaerobic bacteria with SRB in sulfate-reducing enrichment cultures obtained from 10 well water samples in Istanbul was investigated. A nested polymerase chain reaction-denaturing gradient gel electrophoresis strategy was performed to characterize the bacterial community structure of the enrichments. The most probable number method was used to determine SRB number. Out of 10, SRB growth was observed in only one (10%) enrichment culture and the SRB number was low (<10 cells/mL). Community members were identified as Desulfolutivibrio sulfodismutans and Anaerosinus sp. The ...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Miray Üstüntürk-Onan Tu ğçe Tüccar Esra Ilhan-Sungur Source Type: research
Hazard-mapping and health risk analysis of iron and arsenic contamination in the groundwater of Sylhet district
This study investigates groundwater contamination by arsenic and iron and its health implications within the Sylhet district in Bangladesh. Utilizing geographic information system (GIS) and inverse distance weighting (IDW) methods, hazard maps have been developed to evaluate contamination risk across various upazilas. The findings show significant arsenic and iron pollution, particularly in the northwestern part of the district. In about 50% of the area, especially in Jaintiapur, Zakiganj, Companiganj, and Kanaighat where arsenic levels surpass 0.05 mg/L which is the standard limit of Bangladesh. Iron levels peak at 13.83 ...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Tahmida Naher Chowdhury Md Mahmudul Hasan Gulam Md Munna Md Jahir Bin Alam Ahmad Hasan Nury Shriful Islam Tajmun Naher Source Type: research
< em > Cryptosporidium < /em > spp. and < em > Eimeria < /em > spp. (Apicomplexa: Eimeriorina) of freshwater Cyprinid fish species in the Kura River basin in Azerbaijan territory
This study aims to determine the prevalence of Cryptosporidium and Eimeria spp. oocysts in fish specimens in the river Kura. It was conducted during the 2021-2022 at two sites: Mingachevir reservoir in central Azerbaijan and in Neftchala district where the river finally enters the Caspian Sea through a delta of the Kura River estuary. The diagnosis of oocysts was performed microscopically. Fine smears from the intestine epithelial layers stained by Ziehl-Neelsen for Cryptosporidium oocysts. To identify Eimeria oocysts, each fish's faecal material and intestinal scrapings were examined directly under a light microscope in w...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Simuzer Mamedova Panagiotis Karanis Source Type: research
Physicochemical and ecotoxicological approaches for Moknine Continental Sebkha in Tunisia
J Water Health. 2024 Apr;22(4):785-796. doi: 10.2166/wh.2024.035. Epub 2024 Mar 19.ABSTRACTDegradation of water quality is an emerging issue in many developing countries. In this context, industrial and domestic effluents heavily contaminate the coast of Moknine Continental Sebkha in Tunisia. The present study aimed to biomonitor the seawater quality of the Moknine Continental Sebkha coast using physicochemical and ecotoxicological approaches. The ecotoxicological assessment was performed using three species representing different trophic levels, namely Vibrio fischeri, Selenastrum capricornutum, and Lepidium sativum. In t...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Afifa Belaid Karima Bekir Asma Beltifa Mouncef Sedrati Jos é Juan Santana Rodríguez Hedi Ben Mansour Source Type: research
Comparison of the performance of SWAT and hybrid M5P tree models in rainfall-runoff simulation
In conclusion, this study shows the effectiveness of the hybrid M5P tree model in stream flow forecasting. The research contributes valuable insights into improved water resource management and underscores the importance of selecting appropriate models based on their performance and suitability for specific hydrological forecasting tasks.PMID:38678419 | DOI:10.2166/wh.2024.022 (Source: Journal of Water and Health)
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Shailesh Kumar K K Pandey Ajay Ahirwar Source Type: research
Human health risk assessment framework for new water resource recovery-based bio-composite materials
J Water Health. 2024 Apr;22(4):652-672. doi: 10.2166/wh.2024.168. Epub 2024 Feb 22.ABSTRACTA new type of bio-composite material is being produced from water-recovered resources such as cellulose fibres from wastewater, calcite from the drinking water softening process, and grass and reed from waterboard sites. These raw materials may be contaminated with pathogens and chemicals such as Escherichia coli, heavy metals, and resin compounds. A novel risk assessment framework is proposed here, addressing human health risks during the production of new bio-composite materials. The developed framework consists of a combination of...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Arianna Nativio Oriana Jovanovic Zoran Kapelan Jan Peter van der Hoek Source Type: research
Occurrence of coliforms and biofilm-forming bacteria in raw, treated, and distributed water from two waterwork systems in Osun State, Southwestern Nigeria
This study assessed the bacteriological quality of raw, treated, and distributed water from Ede-Erinle and Opa reservoirs in Osun State, Nigeria. This was to determine the potability of water from these waterwork stations. Eighteen sampling points were established across the two reservoir networks for this study. Samples were collected bi-monthly for two annual cycles. Serial dilution and pour plate methods were employed for the enumeration of bacterial load. Total heterotrophic bacteria count (THBC) and total coliform bacteria count (TCBC) were enumerated on nutrient and MacConkey agar at 37 °C, respectively. Bacterial i...
Source: Journal of Water and Health - April 28, 2024 Category: Environmental Health Authors: Abayomi Tolulope Oyewale Babatunde Wumi Odetoyin Anthonia Olufunke Oluduro Israel Funso Adeniyi Source Type: research
