Nitrate and nitrite in water.

Abstract

Nitrate is detectable m soil and consequently, is widespread in the environment from food to atmosphere and water. Higher concentrations are expected where fertilisers are used, in decayed animal and vegetable matter, in leaches from sludge and refuse disposal and in industrial discharges, this is due the solubility of nitrates in water. Taking consideration that humans are not exposed only by nitrates due the intake of water, but also from other sources, such as food and atmosphere. Regulations for the control of nitrate are to protect consumers against further health hazards. The aim target of the government with the collaboration of all manufacturers of food and drinking products, are to maintain food and drinking products at a low as possible in nitrate contents. The final result must reach the Acceptable Daily Intake. Although nitrates have been indicated where they are commonly found, water hazards contribute to one of the higher percentage of these contaminants. Polluted drinking water can contribute with more than two thirds of the total nitrate intake.