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Water Sources and Their Protection from the Impact of Microbial Contamination in Rural Areas of Beijing, China

Bacterial contamination of drinking water is a major public health problem in rural China. To explore bacterial contamination in rural areas of Beijing and identify possible causes of bacteria in drinking water samples, water samples were collected from wells in ten rural districts of Beijing, China...

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Detalles Bibliográficos
Autores principales: Ye, Bixiong, Yang, Linsheng, Li, Yonghua, Wang, Wuyi, Li, Hairong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3709292/
https://www.ncbi.nlm.nih.gov/pubmed/23462436
http://dx.doi.org/10.3390/ijerph10030879
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author Ye, Bixiong
Yang, Linsheng
Li, Yonghua
Wang, Wuyi
Li, Hairong
author_facet Ye, Bixiong
Yang, Linsheng
Li, Yonghua
Wang, Wuyi
Li, Hairong
author_sort Ye, Bixiong
collection PubMed
description Bacterial contamination of drinking water is a major public health problem in rural China. To explore bacterial contamination in rural areas of Beijing and identify possible causes of bacteria in drinking water samples, water samples were collected from wells in ten rural districts of Beijing, China. Total bacterial count, total coliforms and Escherichia coli in drinking water were then determined and water source and wellhead protection were investigated. The bacterial contamination in drinking water was serious in areas north of Beijing, with the total bacterial count, total coliforms and Escherichia coli in some water samples reaching 88,000 CFU/mL, 1,600 MPN/100 mL and 1,600 MPN/100 mL, respectively. Water source types, well depth, whether the well was adequately sealed and housed, and whether wellhead is above or below ground were the main factors influencing bacterial contamination levels in drinking water. The bacterial contamination was serious in the water of shallow wells and wells that were not closed, had no well housing or had a wellhead below ground level. The contamination sources around wells, including village dry toilets and livestock farms, were well correlated with bacterial contamination. Total bacterial counts were affected by proximity to sewage ditches and polluting industries, however, proximity to landfills did not influence the microbial indicators.
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spelling pubmed-37092922013-07-12 Water Sources and Their Protection from the Impact of Microbial Contamination in Rural Areas of Beijing, China Ye, Bixiong Yang, Linsheng Li, Yonghua Wang, Wuyi Li, Hairong Int J Environ Res Public Health Article Bacterial contamination of drinking water is a major public health problem in rural China. To explore bacterial contamination in rural areas of Beijing and identify possible causes of bacteria in drinking water samples, water samples were collected from wells in ten rural districts of Beijing, China. Total bacterial count, total coliforms and Escherichia coli in drinking water were then determined and water source and wellhead protection were investigated. The bacterial contamination in drinking water was serious in areas north of Beijing, with the total bacterial count, total coliforms and Escherichia coli in some water samples reaching 88,000 CFU/mL, 1,600 MPN/100 mL and 1,600 MPN/100 mL, respectively. Water source types, well depth, whether the well was adequately sealed and housed, and whether wellhead is above or below ground were the main factors influencing bacterial contamination levels in drinking water. The bacterial contamination was serious in the water of shallow wells and wells that were not closed, had no well housing or had a wellhead below ground level. The contamination sources around wells, including village dry toilets and livestock farms, were well correlated with bacterial contamination. Total bacterial counts were affected by proximity to sewage ditches and polluting industries, however, proximity to landfills did not influence the microbial indicators. MDPI 2013-03-05 2013-03 /pmc/articles/PMC3709292/ /pubmed/23462436 http://dx.doi.org/10.3390/ijerph10030879 Text en © 2013 by the authors; licensee MDPI, Basel, Switzerland. http://creativecommons.org/licenses/by/3.0/ This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Ye, Bixiong
Yang, Linsheng
Li, Yonghua
Wang, Wuyi
Li, Hairong
Water Sources and Their Protection from the Impact of Microbial Contamination in Rural Areas of Beijing, China
title Water Sources and Their Protection from the Impact of Microbial Contamination in Rural Areas of Beijing, China
title_full Water Sources and Their Protection from the Impact of Microbial Contamination in Rural Areas of Beijing, China
title_fullStr Water Sources and Their Protection from the Impact of Microbial Contamination in Rural Areas of Beijing, China
title_full_unstemmed Water Sources and Their Protection from the Impact of Microbial Contamination in Rural Areas of Beijing, China
title_short Water Sources and Their Protection from the Impact of Microbial Contamination in Rural Areas of Beijing, China
title_sort water sources and their protection from the impact of microbial contamination in rural areas of beijing, china
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3709292/
https://www.ncbi.nlm.nih.gov/pubmed/23462436
http://dx.doi.org/10.3390/ijerph10030879
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