ENH 424 Lecture Notes - Lecture 3: Arsenic Poisoning, Urban Runoff, Toothpaste
26 Jan 2018
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Lecture 3 aesthetic parameters and chemical concerns in drinking water. Lead: example of lead contamination is the flint water crisis, lead in tap water to some extent from dissolution from natural sources, but primarily. In most cases, re-sampling and targeted flushing is not recommended, unless needed to validate initial test results or to assist in identifying specific sources of lead. Possible answers: how old is the house/question; whether there are children or women of childbearing age. Fluoride: low levels of fluoride occur naturally in most sources of drinking water in canada, fluoride has been added to public drinking water at controlled concentrations in. Canadian communities since the 1940s as a means of preventing tooth decay (i. e. dental caries: canadians are also exposed to fluoride through other sources (e. g. foods, toothpaste, products made from fluoridated water) Mercury: major sources of mercury in drinking water are, erosion of natural deposits, discharge from refineries and factories, runoff from landfills, farm runoff.
