Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – Antimony (French, HTML)

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Publisher-reported update

2021-11-29

Antimony may enter the aquatic environment by way of natural weathering of rocks, runoff from soils, effluents from mining and manufacturing operations, and industrial and municipal leachate discharges. Household piping and possibly non-leaded solders are sources of antimony in tap water, as soft water may leach antimony from the pipes. The maximum acceptable concentration (MAC) for antimony in drinking water is 0.006 mg/L (6 µg/L).

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