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Arsenic(V) acid is a weak acid and the salts are called arsenates, [5] the most common arsenic contamination of groundwater, and a problem that affects many people. Synthetic arsenates include Scheele's Green (cupric hydrogen arsenate, acidic copper arsenate), calcium arsenate, and lead hydrogen arsenate. These three have been used as ...
Arsenic is used as the group 5 element in the III-V ... Arsenic is known to cause arsenicosis when present in drinking water, "the most common species being ...
In the United States small "under the sink" units have been used to remove arsenic from drinking water. This option is called "point of use" treatment. The most common types of domestic treatment use the technologies of adsorption (using media such as Bayoxide E33, GFH, activated alumina or titanium dioxide) [39] or reverse osmosis.
The most common reason for long-term exposure is contaminated drinking water. [3] Groundwater most often becomes contaminated naturally; however, contamination may also occur from mining or agriculture. [1] It may also be found in the soil and air. [5] Recommended levels in water are less than 10–50 μg/L (10–50 parts per billion). [1]
Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way into groundwater.This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.
A recent study by the Center for Environmental Health has revealed high levels of arsenic in two brands of bottled water sold by Whole Foods and Walmart.