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For a bodyweight around 70 kg (155 lb.), the lethal dose of arsenic would be closer to a gram than 100 mg. Current Queue | Current Queue for Medicine | Medicine archives Try the links in the MadSci Library for more information on Medicine.
If the arsenic level in your well is above 10 Âµg/l (the federal standard) , stop drinking the water and use bottled water or water from another âsafeâ source (e.g., a public water supply known to have low arsenic levels).s many as 30,000 private wells in northeastern Wisconsin could contain arsenic levels in excess of 5 Âµg/l. Based on sampling results from public water systems, 73 wells serving the public exceed 10 Âµg/l. Arsenic levels between 5-10 Âµg/l warrant concern as there is a risk these levels may increase over time.