(c)

for zones in which the levels of one or more pollutants are higher than the limit values, target values or critical levels, as well as for average exposure territorial units where the levels of one or more pollutants are higher than the level determined by the average exposure reduction obligations: the dates and periods when such levels were observed; if appropriate, an assessment on contributions from natural sources and from re-suspension of particulates following winter-sanding or winter-salting of roads to the levels assessed, as provided to the Commission under Articles 16 and 17.

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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.