Bacteriological Quality of Drinking Water and Hygienic Assessment of Water Cooler Dispensers in Higher Education Institution

Nopadol Precha, Chayada Rattanaphan, Tanyaporn Galiga, Presert Makkaew, Nutcha Narom, Siriuma Jawjit

Abstract


Background: The bacteriological quality of drinking water has become a public health concern according to its association with water‑borne diseases. Nowadays, there are several different types of drinking water, including water cooler dispensers (WCDs), which are becoming a popular device in educational institutions. Therefore, this study aims to determine the bacteriological quality of drinking water from WCDs, and inspect their hygienic conditions in students’ dormitories at a university in Nakhon Si Thammarat, Thailand. Methods: Water samples from 53 WCDs installed in 13 dormitories were collected and analyzed coliform bacteria by using the multiple‑tube fermentation technique. The hygienic inspection form from the Department of Health, Ministry of Public Health, was used for inspection of the sanitary conditions. The hygienic factors of water cooler sanitation were analyzed using the generalized linear model. Results: Coliform bacteria were found in 10 out of 53 samples; moreover, Escherichia coli was recovered in three samples. Maintenance/cleaning and monitoring were the most two sanitary issues found in 100% (53/53) of the WCDs. Location and features of machine were found the correlation with the prevalence of coliform bacteria in drinking water. Conclusions: The findings of this study suggest regular monitoring of water quality in educational institutions. Also, the Sanitary Standard and Operational Procedures (S.S.O.P.) should be developed to improve the hygienic conditions of the water cooler dispensers.

Keywords


Drinking water; environmental monitoring; hygiene; water quality

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References


Reynolds KA, Mena KD, Gerba CP. Risk of waterborne illness

via drinking water in the United States. Rev Environ Contam

Toxicol 2007;192:117‑58.

Fiebelkorn AP, Person B, Quick RE, Vindigni SM, Jhung M,

Bowen A, et al. Systematic review of behavior change research

on point‑of‑use water treatment interventions in countries

categorized as low‑to medium development on the human

development index. Soc Sci Med 2012;75:622‑33.

World Health Organization. Guidelines For Drinking‑Water

Quality. Geneva: World Health Organization; 2011.

Hunter PR, Zmirou‑Navier D, Hartemann P. Estimating

the impact on health of poor reliability of drinking water

interventions in developing countries. Sci Total Environ

:407:2621‑4.

Sacchetti R, De Luca G, Dormi A, Guberti E, Zanetti F.

Microbial quality of drinking water from microfiltered water

dispensers. Int J Hyg Environ Health 2014;217:255‑9.

Park S, Farooq A, Jo H, Kim J, Yang M, Ko Y, et al.

Investigation of microbial communities in water dispensers. Appl

Biol Chem 2017;60:667‑72.

Pratum C, Khananthai N. Assessment of factors affecting

drinking water quality from free water dispensers in the higher

education institution. Int J Environ Sci Educ 2017;12:787‑97.

Saxena G, Bharagava RN, Kaithwas G, Raj A. Microbial

indicators, pathogens and methods for their monitoring in water

environment. J Water Health 2014;13:319‑39.

Liguori G, Cavallotti I, Arnese A, Amiranda C, Anastasi D,

Angelillo IF. Microbiological quality of drinking water from

dispensers in Italy. BMC Microbiol 2010;10:19.

Furuhata K, Ishizaki N, Fukuyama M. Bacterial contamination in

cold water samples obtained from water dispensers. Biocontrol

Sci 2015;20:147‑51.

Semerjian L, Ibrahim MM, Alkhateri BM. A comparative study

of microbial contamination between public institutional and

private residential bottled water dispensers. Environ Monit

Assess 2020;192:259.

Ghorbanzadeh A, Peivasteh Roudsari L, Afshar Kohan N,

Zangi R, Moradi F. A survey on coliform contamination and

chemical parameters of potable water from water dispensers in

faculties of Mashhad University of medical sciences. J Food

Safe Hyg 2019;4:63‑8.

Rice EW, Baird RB, Eaton AD. Standard Methods for the

Examination of Water and Wastewater. 23rd ed. Washington DC, USA: American Public Health Association; 2017.

Bergey DH, Noel RK, John GH. Bergey’s Manual of Systematic

Bacteriology. Baltimore, MD: Williams & Wilkins; 1984.

Handbook of Drinking Water Vending Machines. Business

Detrimental to Health, in Public Health Act 1992 and the

Ministry of Public Health. Bangkok; 2013.

Yongyod R. Drinking water quality and evaluation of

environmental conditions of water vending machines. Asia Pac J

Sci Technol 2018;23:1‑5.

Thai Industrial Standards Institute. Drinking

Water (TIS 257‑2006).Thailand: Ministry of Industrial; 2006.

Nkere C, Ibe N, Iroegbu C. Bacteriological quality of foods and

water sold by vendors and in restaurants in Nsukka, Enugu State,

Nigeria: A comparative study of three microbiological methods.

J Health Popul Nutr 2011;29:560‑6.

Moosa M, Khan M, Alalami U, Hussain A. Microbiological

quality of drinking water from water dispenser machines. Int J

Environ Sci Dev 2015;6:710‑3.

Rubino F, Corona Y, Pérez JGJ, Smith C. Bacterial contamination

of drinking water in Guadalajara, Mexico. Int J Environ Res

Public Health 2018;16:67.

Rakkamon T, Chaimay B, Inraksa S, Rachasong W. Quality

of drinking water from water cooler at Thaksin University,

Phatthalung Campus. Thaksin University J 2012;15:18‑26.

Bartram J, Pedley S. Microbiological analyses. In: Bartram J,

Ballance R. editos. Water Quality Monitoring: A Practical Guide

to the Design and Implementation of Freshwater Quality Studies

and Monitoring Programmes. London, U.K.: E&FN Spon; 1996.

p. 383.

Wibuloutai J, Thanomsangad P, Benjawanit K, Mahaweerawat U.

Microbial risk assessment of drinking water filtration dispenser

toll machines (DFTMs) in Mahasarakham province of Thailand.

Water Supply 2019;19:1438‑45.

Malik A, Yasar A, Tabinda A, Abubakar M. Water‑borne diseases,

cost of illness and willingness to pay for diseases interventions in

rural communities of developing countries. Iran J Public Health

;41:39‑49.

Jeena MI, Deepa P, Mujeeb Rahiman KM, Shanthi RT,

Hatha AAM. Risk assessment of heterotrophic bacteria from

bottled drinking water sold in Indian markets. Int J Hyg Environ

Health 2006;209:191‑6.

Malakootian M, Mansoorian HJ, Moosazadeh M. Performance

evaluation of electrocoagulation process using iron‑rod electrodes

for removing hardness from drinking water. Desalination

;255:67‑71.

Gibert O, Lefèvre B, Fernández M, Bernat X, Paraira M,

Calderer M, et al. Characterising biofilm development on

granular activated carbon used for drinking water production.

Water Res 2013;47:1101‑10.