Nitrogen dioxide (NO2) is an odorless gas that can irritate your eyes, nose, and throat and cause shortness of breath. Indoor NO2 can come from using appliances that burn fuels such as gas, kerosene, and wood. In people with asthma, exposure to low levels of NO2 may cause increased bronchial reactivity and make young children more susceptible to respiratory infections. Long-term exposure to high levels of NO2 can lead to chronic bronchitis. Studies show a connection between breathing elevated short-term NO2concentrations, and increased visits to emergency departments and hospital admissions for respiratory issues, especially asthma.
The primary sources indoors are combustion processes, such as:
Make sure all fuel-burning appliances are properly installed, used, and maintained following all manufacturer's instructions. If possible, use fuel-burning appliances that are vented to the outside.
Steps You Can Take To Reduce Exposure
Recommendations to Improve Air Quality with Gas Stoves, English/Spanish
Visit the EPA for additional resources on Nitrogen Dioxide's Impact on Indoor Air Quality
Transitioning Away from Fossil Fuels Would Mean Children (and all of us) Breathe Easier (CommonWealth Magazine opinion article)