how do pesticides and fertilizers cause water pollution

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Although terrestrial impacts by pesticides do occur, the principal pathway that causes ecological impacts is that of water contaminated by pesticide runoff. The two principal mechanisms arebioconcentration and biomagnification. Bioconcentration: This is the movement of a chemical from the surrounding medium into an organism.

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  • How do pesticides cause pollution?

  • In the US pesticides pollution has been found in nearly every lake, river and stream, according to a US Geological Survey in the 1990s. Other nations are affected badly, too. Pesticides cause pollution by running off agricultural fields and from horticultural land and domestic gardens, too. Rain water washes the chemicals into nearby water sources.

  • How do chemical fertilizers cause water pollution?

  • How Chemical Fertilizers Cause Water Pollution? Chemical fertilizers contain phosphates, nitrates that can actually be the main reason behind water pollution. Environmental nitrogen and phosphorous contribute to the process of Eutrophication, which enriches the water surface with nutrients.

  • What are the bad effects of pesticides?

  • Pesticides cause pollution by running off agricultural fields and from horticultural land and domestic gardens, too. Rain water washes the chemicals into nearby water sources. Here are some of the bad effects of pesticides. Picture: Rivers and other water sources may be affected by pesticides. Flooding may cause additional problems.

  • What are the harmful effects of fertilizers?

  • The other substances like nitrogen (urea or calcium ammonium nitrate) and phosphorus (DAP or MAP) fertilizers, if used unreasonably, can cause environmental pollution and mainly through accumulation of nitrate in agricultural products, drinking water, eutrophication of water sources and accumulation of cadmium.

    how do pesticides and fertilizers cause water pollution

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