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Directive (EU) 2016/2284 of the European Parliament and of the Council of 14 December 2016 on the reduction of national emissions of certain atmospheric pollutants, amending Directive 2003/35/EC and repealing Directive 2001/81/EC (Text with EEA relevance ) · European Union

the key indicator soil acidity: exchangeable fractions of base cations (base saturation) and exchangeable aluminium in soils: frequency of sampling: every 10 years; supporting indicators: pH, sulphate, nitrate, base cations, aluminium concentrations in soil solution: frequency of sampling: every year (where relevant);

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Source: EUR-Lex (Cellar) · retrieved 2026-10-29 · Text as adopted (Official Journal); later amendments are not incorporated in this text.