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 Second heatwave exact end date as London braces for another 9 days of high temperatures All Regions Europe Second heatwave exact end date as London braces for another 9 days of high temperatures July 1, 2026 Minute Man National Historical Park Weather Blog Minute Man National Historical Park July 1, 2026 A Most “Pleasantly Situated” Estate Weather Blog A Most “Pleasantly Situated” Estate June 30, 2026