Recital 42

(42) Air pollution has no boundaries and is shared across the Union. In most Member States, a significant share of pollution is generated outside their territory. Where appropriate, Member States should cooperate with one another if, following significant pollution originating in another Member State, the level of a pollutant exceeds, or is likely to exceed, any limit value, target value, average exposure reduction obligation or alert threshold. The transboundary nature of specific pollutants, such as ozone and particulate matter (PM10 and PM2,5), requires the Member States concerned to cooperate with each other in order to identify the sources of air pollution and the measures to be taken to address those sources and draw up coordinated activities, such as the coordination of air quality plans and short-term action plans, in which each Member State should address pollution sources in its territory, in order to remove such exceedances, as well as to inform the public. Where appropriate, Member States should pursue cooperation with third countries, with particular emphasis on the early involvement of candidate countries. The Commission should be informed in a timely manner of, and be invited to be present and assist in, any such cooperation, and it should be able to provide technical support to Member States upon request where appropriate.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-16 · Text as adopted (Official Journal); later amendments are not incorporated in this text.