Question #e099d

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G_Ozdilek
Aug 17, 2016

It depends on MethylHg/TotalHg, basin characteristics, pH of water...

Explanation:

According to WHO (World Health Organization: Mercury in Drinking Water: Background document for development of WHO Guidelines for Drinking water quality, 2005), total mercury should be not greater than 0.002 ppm (mg per Liter) in the USA. According to Water Quality Association (Reference: https://www.wqa.org/Learn-About-Water/Common-Contaminants/Mercury), maximum contaminant level (MCL) for mercury is 0.002 ppm (mg/L).

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