Nitrate Pollution

With the rapid pace of agricultural industrialization, nitrogenous fertilizer has been used at an ever increasing rate, which resulted in the trace of accumulative nitrogen in the soil and caused serious environmental problems.

Due to the cumulative character of nitrates in groundwater, concentrations higher than 25 mg/l should be treated with concern, calling for preventive actions. In surface waters, particularly lakes and closed gulfs, excessive accumulation of nitrogen as well as phosphorus may lead to eutrophication, with adverse impact, due the proliferation of algae and their byproducts, on fish, oxygen levels and amenity value.