Monitoring on physical, chemical and microbiological factors of rainwater and collecting rainwater behavior. Case study: Moo 1 Phraek Nam Daeng sub district, Amphawa district, Samut Songkram province.

Abstract

This research aimed to 1) analyze the quality of rainwater in household water vessel related to physical, chemical and microbiological factors 2) study of rainwater collecting behaviors for consumption and 3) provide the rainwater quality data to related public official for consumer awareness. The household rainwater sample were kept in 20 vessels. Twenty rainwater collecting volunteers were selected. Research tools were laboratory instruments for rainwater quality analysis. The questionnaire for estimation of rainwater collecting behaviors of volunteer. The quality of household rainwater was analyzed in laboratory, while the questionnaire data was analyzed by descriptive statistics in terms of percentage, mean and standard deviation.

The results indicate that the physical and chemical characteristics of the collected rainwater confer to the rainwater quarantine standard. However, it was observed that 15 water samples contained coliform bacteria and fecal coliform bacteria at contamination levels ranging from <2 to 9 MPN/100ml, which did not meet the specified criteria. The rainwater collecting methods and quality improvement behavior were classified as moderate level. The research findings suggest that collected rainwater contamination with coliform and fecal coliform bacteria during stored in water vessels. The related community’s office should provide policies to educate the consumer about proper guidelines for collecting, storing and using of rainwater.