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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.
China has set a standard for arsenic limits in food (150 ppb), [32] as levels in rice exceed those in water. [33] The European Commission (2000) reports that levels of arsenic in air range 0–1 ng/m 3 in remote areas, 0.2–1.5 ng/m 3 in rural areas, 0.5–3 ng/m 3 in urban areas, and up to about 50 ng/m 3 in the vicinity of industrial sites ...
The arsenic levels are up to 4730 μg/L in the groundwater, ~1000 μg/L in irrigation water, and up to 3947 μg/kg in food materials all of which all exceed the United Nations Food and Agricultural Organization's standard for irrigation water and the World Health Organization's standards for drinking water. As a result, individuals who are ...
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 ...
Increased levels of skin cancer have been associated with arsenic exposure in Wisconsin, even at levels below the 10 ppb drinking water standard. [147] According to a recent film funded by the US Superfund , millions of private wells have unknown arsenic levels, and in some areas of the US, more than 20% of the wells may contain levels that ...
KEYPORT — A slag-like material on the beach in Keyport contains high levels of arsenic and should be avoided, state environmental officials warned.
Under the LCR, if tests show that the level of lead in drinking water is in the area of 15 ppb or higher, it is advisable—especially if there are young children in the home—to replace old pipes, to filter water, or to use bottled water. EPA estimates that more than 40 million U.S. residents use water "that can contain lead in excess of 15 ppb".
Geological deposits of arsenic may be released into rivers where deep ground-waters are exploited as in parts of Pakistan. Many metalloid ores such as lead, gold and copper contain traces of arsenic and poorly stored tailings may result in arsenic entering the hydrological cycle.