Perliminary Assessment on Coliform Becteria Contamination of Public Toilets in Chiangmai Municipality

Abstract

This study was pre assessment on coliform bacteria contamination of public toilets in Chiang Mai Municipality. Samples sizes were 84 public toilets and 922 samplings of 13 points that’s exposed to fecal contamination during March-May 2554. Methods used national standard pattern of public toilets (HAS) and coliform bacteria test (SI-2). Data analysis by descriptive statistics and percentage. The results showed that 4 public toilets were in standard of public toilets (HAS) on 4.8%. The first of healthy (H) requirements were tanks and drainage sewages were in good conditions (90.5%). A problem was the provision of cleaning and regular monitoring system control (48.8%). The accessibility (A) requirements were found available in public toilets 97.6% while 86.9% hadn’t been provided seat flat toilet for disabled, elderly and pregnancy. The safety (S) requirements, 100% of public toilets location were in sight/desolated and the others requirements could pass evaluation more than 78.6%. The study on coliform bacteria contamination was shown the percentage of contaminated conditions of the public park toilets, markets and municipal schools were 36.4, 34.6 and 33.3% respectively. The hotel’s restaurants showed least contamination (1.4%) and also found that men toilets contamination were more than women (18.9%, 18.4%).