Nitrogen Dioxide
NO2NO₂
A reddish-brown toxic gas, primarily a byproduct of vehicle exhaust and power plants. Inflames airways and helps form smog and acid rain.
Related terms
Criteria Pollutants The six common air pollutants regulated under NAAQS: ground-level ozone, particulate matter, carbon monoxide, lead, sulfur dioxide, and nitrogen dioxide. Traffic Proximity Data Mapped data on high-volume roadways used to estimate residents' exposure to diesel particulate matter and nitrogen dioxide from freight and passenger vehicles.