15 JULY 2015 ¦ LONDON Nearly 9,500 people die early each year in London due to long-term exposure to air pollution, more than twice as many as previously thought, according to new research. The premature deaths are due to two key pollutants, fine particulates known as PM2.5 and the toxic gas nitrogen dioxide (NO2), according … Continue reading Including NO2 more than doubles number of premature deaths from air pollution