A Nitrogen oxides (NOx) is Compounds of nitrogen (N) and oxygen (O) in ambient air; i.e., nitric oxide (NO) and others with a higher oxidation state of N, of which NO2 is the most important toxicologically.
Other /More definition:
A nitrogen oxides (NOx) is any inorganic compound containing both nitrogen and oxygen. These compounds act as precursors to other pollutants such as nitrate and ozone. NOx includes nitric oxide (NO), nitrogen dioxide (NO2), and others. NOx are formed by natural processes such as lightning, forest fires, and microbial processes. Anthropogenic sources include agricultural fertilizers and combustion engines. Man-made sources currently equal natural sources (see Schlesinger, 1997).
Other /More definition:
A Nitrogen Oxides (NOx) is Gases consisting of one molecule of nitrogen and varying numbers of oxygen molecules. Nitrogen oxides are produced, for example, by the Combustion of fossil fuels in vehicles and electric power plants. In the atmosphere, nitrogen oxides can contribute to formation of photochemical ozone (smog), impair visibility, and have health consequences; they are considered pollutants.

Related Articles

Air Toxics ■■■■■■■■
Air Toxics are any Air Pollutant for which a national Ambient Air quality standard (NAAQS) does not exist . . . Read More
Criteria Pollutants ■■■■■■■■
Criteria Pollutants are the 1970 amendments to the Clean Air Act required EPA to set National Ambient . . . Read More
Oxidation at top500.de■■■■■■■■
Redox (reduction-oxidation) reactions include all chemical reactions in which atoms have their oxidation . . . Read More
Chemical Compound ■■■■■■■
A Chemical Compound is a distinct and pure substance formed by the union or two or more elements in definite . . . Read More
CEM at top500.de■■■■■■■
CEM, in the industrial and industry context, stands for "Continuous Emissions Monitoring." It refers . . . Read More
Oxide at top500.de■■■■■■■
An oxide is a chemical compound that contains at least one oxygen atom and one other element in its chemical . . . Read More
Monoxide at top500.de■■■■■■
Monoxide refers to a compound composed of one atom of oxygen and one atom of another chemical element, . . . Read More
Compound at top500.de■■■■■■
In an industrial context, a compound is a substance that is made up of two or more elements that are . . . Read More
Greenhouse effect ■■■■■■
A greenhouse effect is the process that raises the temperature of air in the lower atmosphere due to . . . Read More
Gasoline ■■■■■
A gasoline is a petroleum fuel, used to power cars, trucks, lawn mowers, etc. In the context of the environment, . . . Read More