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Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients. It is a primary cause of eutrophication of surface waters (lakes, rivers and coastal waters ), in which excess nutrients, usually nitrogen or phosphorus , stimulate algal growth. [ 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.
While nitrate is beneficial for agriculture since it enhances soil fertility and crop yields, its excessive use can lead to nutrient runoff, water pollution, and the proliferation of aquatic dead zones. [8] Therefore, sustainable agricultural practices that balance productivity with environmental stewardship are necessary.
The increase in pollution of the Mississippi River has greatly affected the species that live in the water, as well as those who rely on the river for food and recreational purposes. One of the main types of pollution is an excess of nitrate (NO − 3) caused by chemical wastes from power plants and agricultural runoffs. The watershed covers ...
Minnesota has measured nitrate water pollution since 1990, though nitrate levels have largely risen across the state since then. While cities and towns have wastewater treatment plants to address ...
In 20 communities around Minnesota, the drinking water supply is so contaminated with toxic nitrate from farm pollution that the state has the obligation to change the way farmers fertilize their ...
Human health effects of eutrophication derive from two main issues excess nitrate in drinking water and exposure to toxic algae. [43] 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]
A nitrate vulnerable zone is a conservation designation of the Environment Agency for areas of land that drain into nitrate polluted waters, or waterways that could become polluted by nitrates due to environmental and health threats.