SCHEDULE 7DATA-QUALITY OBJECTIVES AND COMPILATION OF RESULTS OF AIR-QUALITY ASSESSMENT
PART IIIOZONE AND OZONE PRECURSOR SUBSTANCES: DATA QUALITY OBJECTIVES
3.1
The following data quality objectives, for allowed uncertainty of assessment methods, and of minimum time coverage and of data capture of measurement, are provided to guide quality-assurance programmes.
For ozone, NO and NO2 | |
|---|---|
Continuous fixed measurement | |
Uncertainty of individual measurements | 15% |
Minimum data capture | 90% during summer |
75% during winter | |
Indicative measurement | |
Uncertainty of individual measurements | 30% |
Minimum data capture | 90% |
Minimum data coverage | >10% during winter |
Modelling | |
Uncertainty | 50% |
1 hour averages (daytime) | 50% |
8 hours daily maximum | |
Objective estimation | |
Uncertainty | 75% |