Nitrogen Dioxide (NO2)

Nitrogen Dioxide (NO2) is a red-brown gas that is released when fuel burns. It is most often found in automobile exhausts, and the fumes from burning fossil fuels such as propane, kerosene, natural gas, and wood.

In high concentrations, it can irritate airways in the human respiratory system and possible costly visits to the hospital. Long-term exposure can result in chronic illness and respiratory infections.

Nitrogen Dioxide is measured in parts per billion.

Generally, no symptoms will be found in people when exposed to this level of Nitrogen Dioxide.

Nitrogen Dioxide levels in this range have been shown to cause respiratory discomfort in people who have respiratory issues, such as those with asthma.

This level of Nitrogen Dioxide concentration will cause discomfort and potential health problems for any person regardless of health and age.

SOURCE: WHO, US EPA

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