Article 2

For the purposes of this Directive: 1. "Air pollution" means the introduction by man, directly or indirectly, of substances or energy into the air resulting in deleterious effects of such a nature as to endanger human health, harm living resources and ecosystems and material property and impair or interfere with amenities and other legitimate uses of the environment. 2. "Plant" means any establishment or other stationary plant used for industrial or public utility purposes which is likely to cause air pollution. 3. "Existing plant" means a plant in operation before 1 July 1987 or built or authorized before that date. 4. "Air quality limit values" means the concentration of polluting substances in the air during a specified period which is not to be exceeded. 5. "Emission limit values" means the concentration and/or mass of polluting substances in emissions from plants during a specified period which is not to be exceeded.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-07 · Text as adopted (Official Journal); later amendments are not incorporated in this text.