The Quality of Bottled Drinking Water Distributed in Uttaradit Province
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Abstract
In this study, the examination of 9 and 12 of clear and opaque plastic bottled drinking water samples distributed in Uttaradit Province was investigated. The results showed that all samples were in a good condition, approved by Thai Food and Drug Administration, clear, odourless and tasteless. Protective seals were found in some samples. Label information related to city/country of manufacture and manufactured date/expiring date was found for 66.67% of clear plastic bottled drinking water samples, while no city/country of manufacture and manufactured date/expiring date were found in all opaque plastic bottled drinking water samples (100%). pH of all tested samples were in a range of 6.73±0.02-8.37±0.01. Coliform bacteria and fecal coliform bacteria of all water samples were less than 1.8 MPN/100 mL; however, E. coli was not found in all samples. Total heterotrophic bacteria were found in tested samples of opaque plastic bottled drinking water for 25%, while these bacteria were not presented in all clear plastic bottled drinking water samples. After assessment of both clear and opaque plastic bottled drinking water samples based on standard for drinking water in sealed container set by Ministry of Public Health of Thailand, all samples met the standard for microbiological, chemical and physical qualities.
Article Details
บทความที่ได้รับการตีพิมพ์เป็นลิขสิทธิ์ของ วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยอุบลราชธานี
ข้อความที่ปรากฏในบทความแต่ละเรื่องในวารสารวิชาการเล่มนี้เป็นความคิดเห็นส่วนตัวของผู้เขียนแต่ละท่านไม่เกี่ยวข้องกับมหาวิทยาลัยอุบลราชธานี และคณาจารย์ท่านอื่นๆในมหาวิทยาลัยฯ แต่อย่างใด ความรับผิดชอบองค์ประกอบทั้งหมดของบทความแต่ละเรื่องเป็นของผู้เขียนแต่ละท่าน หากมีความผิดพลาดใดๆ ผู้เขียนแต่ละท่านจะรับผิดชอบบทความของตนเองแต่ผู้เดียว
References
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