A measure of the relative strength of different mutagens based on their ability to cause mutations. Compounds of nitrogen and oxygen formed from high temperature burning. They contribute to acid rain and ozone formation. Nitrogen dioxide is the most toxic and is one of the six major air pollutants for which there is a national air quality standard. A form of oxygen consisting of three oxygen atoms per molecule.
Ozone is a pungent, colorless, toxic gas that is a major component of smog.
It is formed from nitrogen oxides and hydrocarbons in the presence of sunlight and heat. Ozone is one of six major air pollutants for which there is a national air quality standard. Small particles of solid and liquid matter found in the atmosphere including soot, dust, organic matter, smoke, or smog. Particulate matter that measures ten microns in diameter or less. One of six major air pollutants for which there is a national air quality standard.