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Through the Safe Drinking Water Act, the United States Environmental Protection Agency has set a maximum contaminant level of 10 mg/L or 10 ppm of nitrate in drinking water. [ 18 ] An acceptable daily intake (ADI) for nitrate ions was established in the range of 0–3.7 mg (kg body weight) −1 day −1 by the Joint FAO/WHO Expert Committee on ...
Drinking water quality standards in the European Union stipulate less than 50 mg/L for nitrate in drinking water. [19] The linkages between nitrates in drinking water and blue baby syndrome have been disputed in other studies. [20] [21] The syndrome outbreaks might be due to other factors than elevated nitrate concentrations in drinking water. [22]
Nitrate vulnerable zones were introduced by the United Kingdom government in response to the European Union mandate that all countries in the EU must reduce the nitrate in drinking water to a maximum of 50 NO 3 − mg/L to protect public health and environmental health. [1]
Climate-driven extreme weather conditions, such as droughts and intense precipitation, may be accelerating the pace at which toxic nitrates are polluting groundwater, a recent study has found.
Elevated nitrate in groundwater is a concern for drinking water use because nitrate can interfere with blood-oxygen levels in infants and cause methemoglobinemia or blue-baby syndrome. [28] Where groundwater recharges stream flow, nitrate-enriched groundwater can contribute to eutrophication , a process that leads to high algal population and ...
Drinking water quality standards describes the quality parameters set for drinking water. Water may contain many harmful constituents, yet there are no universally recognized and accepted international standards for drinking water. Even where standards do exist, the permitted concentration of individual constituents may vary by as much as ten ...
Lingering nitrate in drinking water poses a plethora of health risks, and both nitrate and nitrous oxide have major environmental impacts. [6] [7] Some hazards include, carcinogenic nitrite ions in drinking water, or eutrophication caused by oxidized nitrogen seeding algal blooms.
Nitrates in drinking water can cause blue baby syndrome in infants and can react with chemicals used to treat water to create disinfection by-products in drinking water. [44] Getting direct contact with toxic algae through swimming or drinking can cause rashes, stomach or liver illness, and respiratory or neurological problems . [45]