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Houston's NO₂ Equality Map

Where we live, work, and spend our time affects how much nitrogen dioxide (NO₂) and other air pollutants we breathe. Many primary pollutants, including NO₂, vary between neighborhoods in the same city. On average, Houston’s low-income residents and residents of color experience 30% higher burdens of NO₂.

The NO₂ Equality Map aims to draw attention to this injustice as it compares NO₂ column densities and socio-demographic vulnerability. The NO₂ Equality Map currently displays data measured from space by TROPOMI on weekdays (September 2018 and 2019) at the census tract level. In the future, the NO₂ Equality Map will update in real time.