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Exploring links between water quality and E. coli O157:H7 survival potential in well waters from a rural area of southern Changchun City, China.
Ding, Meiyue; Li, Jiahang; Liu, Xiaodan; Li, Huiru; Zhang, Rui; Ma, Jincai.
Afiliação
  • Ding M; Key Laboratory of Ground Water Resource and Environment, Ministry of Education, Jilin University, Changchun 130021, China E-mail: jincaima@jlu.edu.cn; College of Environmental and Resources, Jilin University, 2699 Qianjin St, Changchun 130021, China.
  • Li J; College of Environmental and Resources, Jilin University, 2699 Qianjin St, Changchun 130021, China.
  • Liu X; College of Environmental and Resources, Jilin University, 2699 Qianjin St, Changchun 130021, China.
  • Li H; College of Environmental and Resources, Jilin University, 2699 Qianjin St, Changchun 130021, China.
  • Zhang R; College of Environmental and Resources, Jilin University, 2699 Qianjin St, Changchun 130021, China.
  • Ma J; Key Laboratory of Ground Water Resource and Environment, Ministry of Education, Jilin University, Changchun 130021, China E-mail: jincaima@jlu.edu.cn; College of Environmental and Resources, Jilin University, 2699 Qianjin St, Changchun 130021, China.
J Water Health ; 16(2): 300-310, 2018 Apr.
Article em En | MEDLINE | ID: mdl-29676765
Waterborne infectious disease outbreak associated with well water contamination is a worldwide public health issue, especially for rural areas in developing countries. In the current study, we characterized 20 well water samples collected from a rural area of southern Changchun city, China, and investigated the survival potential of Escherichia coli O157:H7 in those water samples. The results showed that nitrate and ammonia concentrations in some well water samples exceed the corresponding China drinking water standards, indicating potential contamination by local agricultural farms. Our results also revealed that the average survival time (ttd) of E. coli O157:H7 in all well water samples was 30.09 days, with shortest and longest ttd being 17.95 and 58.10 days, respectively. The ttds were significantly correlated with pH and the ratio of total nitrogen to total phosphorus. In addition, it was found that the shape parameter (p) and first decimal reduction parameter (δ) were negatively (P < 0.05) and positively (P < 0.05) correlated to ttd, respectively. Our study showed that E. coli O157:H7 could survive up to two months in well water, suggesting that this pathogen could constitute a great public health risk.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Microbiologia da Água / Qualidade da Água / Escherichia coli O157 / Poços de Água País/Região como assunto: Asia Idioma: En Revista: J Water Health Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2018 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Microbiologia da Água / Qualidade da Água / Escherichia coli O157 / Poços de Água País/Região como assunto: Asia Idioma: En Revista: J Water Health Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2018 Tipo de documento: Article País de afiliação: China