What are the potential health effects associated with high levels of arsenic in drinking water?
Short-term exposure to drinking water with higher levels of inorganic arsenic may lead to nausea, vomiting, diarrhea, cardiovascular effects, and brain effects (i.e. encephalopathy), as well as decreased production of red and white blood cells and impaired nerve function. Long-term ingestion of drinking water with inorganic arsenic may lead to a pattern of skin changes (e.g. patches of darkened skin, small “corns” or “warts” on the palms, foot soles, and torso) and damage to the nervous system (i.e., peripheral neuropathy). Several studies have also shown that long-term exposure to inorganic arsenic can increase the risk of certain cancers, including lung, skin, bladder, liver, kidney, and prostate. See the Arsenic Fact Sheet for additional information regarding arsenic public drinking water standards, health effects, and treatment options.
