Microbial risk assessment of drinking water filtration dispenser toll machines (DFTMs) in Mahasarakham province of Thailand | Zendy

Jindawan Wibuloutai | Zendy; Pornpilai Thanomsangad | Zendy; Kannika Benjawanit | Zendy; Udomsak Mahaweerawat | Zendy

Open Access

Microbial risk assessment of drinking water filtration dispenser toll machines (DFTMs) in Mahasarakham province of Thailand

Author(s) -

Jindawan Wibuloutai,

Pornpilai Thanomsangad,

Kannika Benjawanit,

Udomsak Mahaweerawat

Publication year - 2019

Publication title -

water science and technology water supply

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 39

eISSN - 1607-0798

pISSN - 1606-9749

DOI - 10.2166/ws.2019.016

Subject(s) - sanitation , hygiene , water quality , filtration (mathematics) , environmental health , staphylococcus aureus , environmental science , health risk , toll , toxicology , medicine , environmental engineering , biology , mathematics , bacteria , ecology , statistics , immunology , genetics , pathology

This investigation aimed to assess the microbial quality of drinking water produced by drinking water filtration dispenser toll machines (DFTMs) to assess the health risk of DFTM water. A total of 210 samples were randomly collected of 70 DFTMs within a radial distance of 500 metres around Mahasarakham University. The prevalence of Escherichia coli and Staphylococcus aureus in the DFTM water was 54.17% and 16.67% with an average concentration of 1.04 log cfu/ml and 0.26 log cfu/ml, respectively. The risk calculation (using the @Risk program based on drinking water consumption of 2 L/day) indicated that the probability of exposure was 1.67 E-01, while the probability of illness due to E. coli and S. aureus was 2.08 E-03 and 1.58 E-05 and the risk of illness was 1.13 E-03 and 2.64 E-06, respectively. The sanitation status and drinking water quality related to health would be influenced by other pathogens due to the poor hygienic conditions of DFTMs and improper environments.

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