Bacterial water quality in the personal water bottles of elementary students.
نویسندگان
چکیده
BACKGROUND Samples of drinking water were collected directly from the personal water bottles of students at an elementary school in Calgary, Alberta. METHODS Total and fecal coliforms and heterotrophic bacteria were enumerated using membrane filtration and agar plate count methods respectively. RESULTS The Canadian Drinking Water Quality Guidelines (CWQG) criterion was exceeded for total coliform in 13.3% of 75 samples. Fecal coliform and total heterotrophic criteria were exceeded in 8.9% (of 68 samples) and 64.4% (of 76 samples) respectively. FINDINGS The use of personal water bottles for students in elementary classrooms is not recommended.
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ورودعنوان ژورنال:
- Canadian journal of public health = Revue canadienne de sante publique
دوره 93 5 شماره
صفحات -
تاریخ انتشار 2002