nitrogen dioxide(redirected from No 2)
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NO2, a toxic greenhouse gas, produced primarily by the combustion of fossil fuels. It is a powerful oxidant that can cause lung injury when inhaled at high concentrations.
CAS # 10102-44-0
See also: nitrogen
Medical Dictionary, © 2009 Farlex and Partners
nitrogen dioxideA toxic oxide of nitrogen that in concentrations of over about 100 parts per million will cause irritation of the nose and throat, watering of the eyes, cough, headache, and nausea and vomiting. UK occupational exposure safe limits are 5 ppm for 15 minutes and 3 ppm for an 8 hour day.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005