Exceedance of air quality standards in Europe https://www.eea.europa.eu/data-and-maps/indicators/exceedance-of-air-quality-limit-2/assessment EU legislation has led to improvements in air quality, with the percentage of urban citizens exposed to pollutant levels above standards set to protect human health falling between 2000 and 2018. However, poor air quality remains a problem: in 2018, 34 % of citizens were exposed to O 3 and 15 % to PM 10 above EU limit values. This is mainly due to emissions from transport and buildings, but also from agriculture and industry. Without radical changes to mobility, energy and food systems and industry, it is unlikely that air quality targets will be met in the near future.