A prospective study of rural drinking water quality and acute gastrointestinal illness
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Background This study examined the relationship between the bacteriological contamination of drinking water from private wells and acute gastrointestinal illness (AGII), using current government standards for safe drinking water. Methods A prospective cohort study was conducted using 235 households (647 individuals) randomly selected from four rural hamlets. Data were collected by means of a self-administered questionnaire, a self-report diary of symptoms and two drinking water samples. Results Twenty percent of households sampled, had indicator bacteria (total coliform or Escherichia coli (E. coli)) above the current Canadian and United States standards for safe drinking water. No statistically significant associations between indicator bacteria and AGII were observed. The odds ratio (OR) for individuals exposed to E. coli above the current standards was 1.52 (95% confidence interval (CI), 0.33–6.92), compared to individuals with levels below current standards. The odds ratio estimate for individuals exposed to total coliforms above the current standards was 0.39 (95% CI, 0.10–1.50). Conclusions This study observed a high prevalence of bacteriological contamination of private wells in the rural hamlets studied. Individual exposure to contaminated water defined by current standards may be associated with an increased risk of AGII.
Human health impact of non-potable reuse of distributed wastewater and greywater treated by membrane bioreactors
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This dataset contains simulated annual probabilities of infection for non-potable indoor use of greywater or wastewater treated by membrane bioreactors and chlorine disinfection. The .zip file contains .csv files for each combination of source water and pathogen; see readme file (read me file.txt) for data dictionary and file naming convention. This dataset is associated with the following publication: Schoen, M., M. Jahne, and J. Garland. Human health impact of non-potable reuse of distributed wastewater and greywater treated by membrane bioreactors (Microbial Risk Analysis). Microbial Risk Analysis. Elsevier B.V., Amsterdam, NETHERLANDS, 9: 72-81, (2018).
Human health impact of non-potable reuse of distributed wastewater and greywater treated by membrane bioreactors
공공데이터포털
This dataset contains simulated annual probabilities of infection for non-potable indoor use of greywater or wastewater treated by membrane bioreactors and chlorine disinfection. The .zip file contains .csv files for each combination of source water and pathogen; see readme file (read me file.txt) for data dictionary and file naming convention. This dataset is associated with the following publication: Schoen, M., M. Jahne, and J. Garland. Human health impact of non-potable reuse of distributed wastewater and greywater treated by membrane bioreactors (Microbial Risk Analysis). Microbial Risk Analysis. Elsevier B.V., Amsterdam, NETHERLANDS, 9: 72-81, (2018).
Target-Chemical Concentration Results of Mixed-Organic/Inorganic Chemical Exposures in Puerto Rico Tapwater, 2017 to 2018
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This dataset provides the water-quality results for organic and inorganic concentrations analyzed from samples collected at domestic and commercial tapwater faucets and one spring, sourced in Puerto Rico. Samples were collected in October, 2017 and August and December, 2018 from 19 locations. Samples were analyzed at various U.S. Geological Survey laboratories: the National Water Quality Laboratory in Denver, Colorado for organic compounds; the Redox Chemistry Laboratory in Boulder, Colorado for inorganic constituents; the Organic Geochemistry Laboratory in Lawrence, Kansas for microcystin and pesticides including glyphosate and atrazine; the Organic Chemistry Research Laboratory in Sacramento, California for disinfection byproducts; and at Michigan Microbiological Research Laboratory in Lansing, Michigan for microbiological bacteria cell counts. Additionally, samples were analyzed for per- and polyfluoroalkyl substances at the Colorado School of Mines in Golden, Colorado and for phthalates at the University of Puerto Rico, Mayaguez.