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Quality in AIRBASE

Quality in AIRBASE. On behalf of AIRBASEment. A IR B ASE.

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Quality in AIRBASE

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  1. Quality in AIRBASE On behalf of AIRBASEment

  2. AIRBASE Offering the facilities needed to collect, validate, evaluate, store and visualise raw air quality data and statistics and (meta) information on air quality monitoring networks and stations, and making these data available on different aggregated levels, for different information users and through different distribution channels EEA mission statement: ……….reliable information… QA/QC plan for AIRBASE

  3. EoI decision Exchange of • Meta data on: network stations measurement conf. • Raw data QA/QC plan for AIRBASE

  4. EoI Decision Partners involved: • Member States • timely delivery of validated data • Commission • specification of technical procedures • database and (public) access • [reporting/review] • ETC-ACC QA/QC plan for AIRBASE

  5. EoI Decision Annual cycle 1 July DEM available 1 October: data submission 1 March upload in AirBase so far: test on overwriting existing data calculation of statistics if not delivered feedback MS in case of ?????s QA/QC plan for AIRBASE

  6. Improving the quality Meta data: mandatory voluntary from user perspective: essential station name coordinates + altitude type of station, type of area QA/QC plan for AIRBASE

  7. Improving the quality two stations at less then 4 km QA/QC plan for AIRBASE

  8. Improving the quality - 2002 • Check on missing mandatory data • Check on essential data • no action on voluntary data except measuring method PM10, PM2.5 QA/QC plan for AIRBASE

  9. PM10 measuring techniques MEAS_TECHNIQUE NMBR_STATIONS beta-absorption 399 chemiluminescence 15 chromatography 195 comptage 7 gravimetry 192 infrared absorption 2 laser scattering spectrometry 4 nephelometry 1 oscillating microbalance 195 total 1010 QA/QC plan for AIRBASE

  10. Improving the quality - 2002 Raw data • Check on outliers • Overwriting of existing data • (re)calculation of all aggregations and statistics • Ad-hoc action based on feedback users QA/QC plan for AIRBASE

  11. Improving the quality - future • Correction factor PM10, PM2.5 • More sophisticated outlier checking • Gaps in time • Gaps in spatial coverage • Phantom stations • Information on cities QA/QC plan for AIRBASE

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