Air pollution is the single largest environmental health risk in the EU and causes significant damage to ecosystems. As part of the European Green Deal's zero pollution ambition, on 26 October 2022 the Commission tabled a proposal for a revision of the Ambient Air Quality Directives. The proposed directive would set air quality standards for 2030 that are more closely aligned with the Word Health Organization's recommendations, as updated in 2021. It would also include a mechanism for the standards' regular review based on the latest scientific information. To achieve them on time, the Member States would have to establish air quality plans ahead of 2030.