Sampling for lead in school drinking water: A review of protocols
Abstract
In 2019 Health Canada reduced the maximum allowable concentration (MAC) for lead in drinking water from 10 µg/L to 5 µg/L. This signals a national commitment to protecting populations from the deleterious effects of lead and will be particularly important for vulnerable populations such as children. Canada is one of the first countries to lower the lead limit in drinking water below 10 µg/L. In light of Health Canada’s new guidance on lead in drinking water, many jurisdictions will need to re-evaluate their current testing programs for compliance.
The National Collaborating Centre for Environmental Health (NCCEH) and the BC Centre for Disease Control (BCCDC) undertook a review of several protocols that guide testing of lead in drinking water as recommended by Canadian and US government agencies. The review identifies important considerations for designing and undertaking sampling programs. This article presents the highlights of the review.
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