Nitrogen dioxide is a reddish brown gas that comes from motor vehicles such as trucks and automobiles. Other sources include industrial boilers and processes, home heaters, and gas stoves.
What are the impacts of nitrogen dioxide?
Exposure to nitrogen dioxide has been connected to a range of respiratory diseases and infections. Nitrogen dioxide also plays an essential role in the photochemical reactions that produce ozone, the major component in smog.
How are nitrogen dioxide levels (NOx) in the Puget Sound region?
Nitrogen dioxide levels are well-below federal air quality standards, and are monitored by the Washington State Department of Ecology.