All Regions Weather Blog Nitrogen Dioxide in the Neighborhood A team of scientists mapped nitrogen dioxide in California’s air at the neighborhood scale and found hotspots of the air pollutant near high-rise buildings and food processing facilities. Read More… About Author OTW Observer See author's posts Post navigation Previous Mayotte’s LagoonNext Nitrogen Dioxide in the Neighborhood Related Stories London weather ‘danger to life’ warning issued as 33C heatwave incoming All Regions Europe London weather ‘danger to life’ warning issued as 33C heatwave incoming May 22, 2026 First free River Thames bathing site opens in West London – just in time for heatwave All Regions Europe First free River Thames bathing site opens in West London – just in time for heatwave May 22, 2026 Tornado Draws a Jagged Line in Mississippi Weather Blog Tornado Draws a Jagged Line in Mississippi May 22, 2026