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 BBC Weather verdict on London snow returning as new map gives purple alert warning All Regions Europe BBC Weather verdict on London snow returning as new map gives purple alert warning January 17, 2026 London snow warning as blizzard forecast with UK facing up to 51cm All Regions Europe London snow warning as blizzard forecast with UK facing up to 51cm January 17, 2026 Blooming Seas Around the Chatham Islands Weather Blog Blooming Seas Around the Chatham Islands January 16, 2026