(33)

‘average exposure indicator’ or ‘AEI’ means an average level determined on the basis of measurements at urban background locations throughout the average exposure territorial unit or, if there is no urban area located in that territorial unit, at rural background locations, and which reflects population exposure, used to check whether the average exposure reduction obligation and the average exposure concentration objective for that territorial unit have been met;

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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.