Molecular diffusion
AirBG Platform: Nitrogen Dioxide Levels in Sofia Are 2 Times Above the Norm
The levels of nitrogen dioxide in Sofia are twice higher than the norm. The data was exported from the AirBG platform. According to them, the main reason is car traffic. The most polluted places are the busy intersections like the one at Eagle Bridge. Statistics show that 75,000 people die in Europe each year due to nitrogen dioxide.