anx_VII__para__9

Measurement of ozone precursor substances shall include at least nitrogen oxides (NO and NO2), and, as appropriate, methane (CH4) and volatile organic compounds (VOC). The selection of the specific compounds to be measured shall depend on the objective sought and may be complemented by other compounds of interest. Member States may use the method which they consider suitable for the objective sought. The reference method as specified under Annex VI applies for nitrogen dioxide and oxides of nitrogen.

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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.