Emissions of the five most harmful air pollutants, including particulate matter (PM), nitrogen oxides (NOx) and ammonia (NH3) reduced across the European Union between 2017 and 2018 according to updated data published today by the European Environment Agency (EEA). The data is from the annual EU emission inventory report sent to the UNECE Air Convention (Convention on Long-range Transboundary Air Pollution - CLRTAP. (Source: EEA)