anx_I__para_4__continuation

97/101/EC: Council Decision of 27 January 1997 establishing a reciprocal exchange of information and data from networks and individual stations measuring ambient air pollution within the Member States · European Union

the arithmetic mean, the median, the percentiles 98 (and 99,9 which may be transmitted on a voluntary basis for pollutants for which the mean is calculated over 1 hour) and the maximum calculated from raw data corresponding to the recommended averaging times indicated in the table above; for pollutant 7 (ozone), the statistical parameters should also be calculated from mean values over 8 hours;

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Source: EUR-Lex (Cellar) · retrieved 2026-10-12 · Text as adopted (Official Journal); later amendments are not incorporated in this text.