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For example, median levels in Nevada were about 8 μg/L [15] but levels of naturally occurring arsenic as high as 1000 μg/L have been measured in the United States in drinking water. [16] Groundwater associated with volcanics in California contain As at concentrations ranging up to 48,000 μg/L, with As-bearing sulfide minerals as the main ...
Arsenic contamination of groundwater is a form of groundwater pollution which is often due to naturally occurring high concentrations of arsenic in deeper levels of groundwater. It is a high-profile problem due to the use of deep tube wells for water supply in the Ganges Delta, causing serious arsenic poisoning to large numbers of people. A ...
A recent study by the Center for Environmental Health has revealed high levels of arsenic in ... water before it is sold, and our test results from the same lot analyzed by Consumer Reports show ...
When it came to heavy metal levels, only one product was flagged: Starkey Spring Water. It had arsenic levels more than three times that of CR's recommended level of 3 parts per billion, but fell ...
Arsenic may be solubilized by various processes. When pH is high, arsenic may be released from surface binding sites that lose their positive charge. When water level drops and sulfide minerals are exposed to air, arsenic trapped in sulfide minerals can be released into water. When organic carbon is present in water, bacteria are fed by ...
KEYPORT — A slag-like material on the beach in Keyport contains high levels of arsenic and should be avoided, state environmental officials warned.
The drinking water contaminants that can have chronic effects include chemicals (such as disinfection byproducts, solvents and pesticides), radionuclides (such as radium), and minerals (such as arsenic). Examples of these chronic effects include cancer, liver or kidney problems, or reproductive difficulties. [35]
The product was found to contain 13.2 parts per billion (ppb) of arsenic, which is above the action level of 10 ppb. The product was available at Walmart stores in 25 states including Puerto Rico ...