Use of indicative measurements for air quality assessment
Article 9
1. Member States shall use indicative measurement results for air quality assessment and for providing information on the spatial distribution of air pollutants when they show an exceedance of a limit or target value. 2. Member States may use indicative measurement results for air quality assessment and for providing information on the spatial distribution of air pollutants when there is no exceedance of a limit or target value. 3. When compliance with the hourly, daily eight-hour, and daily limit or target values is assessed via indicative measurements, Member States may use the corresponding percentile for the calculation of exceedance statistics.