FACTORS INFLUENCING THE QUALITY OF DRINKING WATER FROM VENDING MACHINES IN THE INNER CITY OF BANGKOK

• Main Authors: Akemi Kita (Author), Tanasri Sihabut (Author), Kraichat Tantrakarnapa (Author)
• Format: Book
• Published: YCAB Publisher, 2020-05-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.
• Notes: 2528-1542; 2477-1570; 10.36685/phi.v6i2.338
• Keywords: drinking water; vending machine; bangkok; maintenance; Public aspects of medicine; RA1-1270
• Source: Public Health of Indonesia, Vol 6, Iss 2, Pp 47-56 (2020)

Objective: To investigate coliform contamination in drinking water from vending machines in the Rajvithi area of Bangkok. Study Design: Cross-sectional study Methods: Associated environmental factors were observed and self-administered questionnaires conducted. In total, 123 drinking-water samples were collected to test coliform bacteria contamination. Results: Coliform bacteria were detected in 28.5% of samples. Links were found between coliform contamination and filter cleaning practices in 57 maintenance persons' responses. Filters cleaned < 3 times per year were at higher risk of coliform contamination (OR 14.49, 95% CI 1.76-125.00). A negative association was found between coliform contamination and vending-machine filters' being cleaned within 100 days (OR 0.21, 95% CI 0.05-0.83). Conclusion: A negative association was found between coliform contamination and vending-machine filters' being cleaned within 100 days (OR 0.21, 95% CI 0.05-0.83). These results emphasized the importance of effective vending-machine maintenance and monitoring drinking-water quality.