Air pollution causes nearly half a million premature deaths in Europe every year. Particulate matter made up of combustion particles, organic compounds, metals, dust, pollen, mould and other materials from electricity generation, transport and industry are the root of the problem. These tiny particles – typically 10 microns or less in size – are easily inhaled and absorbed into the bloodstream where they can lead to asthma, lung cancer, heart and lung disease, and birth defects. With around 90%…