How polluted is YOUR country?
US, Europe air quality improve, but they are still among the highest emitters of NO2.
NO2 emissions are rising.
London takes just one week to breach annual air pollution limits.
These are some of the headlines making waves in the environmental monitoring space.
Using new, high-resolution global satellite maps of air quality indicators, NASA recently released tracked air pollution trends over the last decade in various regions and in 195 cities around the globe.

The trend map of the United States shows the large decreases in nitrogen dioxide concentrations from 2005 to 2014. Please note only decreases are highlighted in this map
The emission of nitrogen dioxide (NO2) has gone up significantly in the South Asia region, including India, during the 2005-2014 period, severely affecting air quality in the process. Nitrogen dioxide can quickly transform into ground-level ozone, a major respiratory pollutant in urban smog.

The trend map of East Asia shows the change in nitrogen dioxide concentrations related to a mix of economic growth and environmental controls across China, South Korea and Japan from 2005 to 2014
Watch the video released by NASA Goddard to learn more about nitrogen dioxide trends around the globe: Watch here