Atmosphere

Characteristics

Industrial

Emissions from heavy industry, concentrations of chloride, phosphate and nitrate and formation of sulfur dioxide from combustion.

Urban

The most common pollutants are NOx (NO + NO2) and SOX from combustion of fossil material and product of anthrononenic mobile sources.

Marine

Existence of high concentrations of chlorides with values above 15 mg/m2-dia NaCl. The corrosivity can be strengthened by the existence of industries in the area, together with temperature, relalive humidity and wind direction.

Rural

It is the presence of pollutants from fertilizers, as well as decomposition of organic matter, result in a the presence of ammonium ions, nitrates.