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Measuring Air Pollution: Key Indicators for Environmental Quality Assessment

Effective assessment of air pollution relies on well-defined indicators that reflect environmental conditions. These indicators should be simple to understand and able to show trends over time, detailing contributions from various sectors like transport and combustion. They fit into the DPSIR framework and include target values to measure progress. Key focus areas for air pollution indicators include urban air quality, exposure levels, and the impact on health and ecosystems. By consistently utilizing these indicators, we can drive informed environmental policies and strategic responses to pollution challenges.

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Measuring Air Pollution: Key Indicators for Environmental Quality Assessment

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  1. Air Pollution Indicators

  2. An indicator should... • Be representive for environmental conditions; • be simple and easy to interpret; • shows trends over time; • shows contributions from sectors or individual components; • be consistently used within the DPSIR-chain; • have a target value.

  3. Assessment information D riving forces (economic sectors: transport, combustion, solvent use) P ressures (emissions: VOC & NOx) S tate (air quality: ozone exceedances) Impacts (health, ecosystems, materials) Responses (policies, measures)

  4. Indicators will form building blocks of main EEA reports (Environmental Signals, TERM/EERM, Kiev, ..) • Core set vs sub-sets to support thematic reports

  5. Indicators - current set • Climate change • policy update • emissions CO2 & non-CO2 • temperature/precipitation change • Stratospheric Ozone • ozone column • potential Cl • UV • production ODS, HCFC

  6. AP Indicators - current set Focus on • Pressure & State • Urban Air Quality • Acidification • Pollutants from first DD + Ozone • retrospective (Env Sign) • Policy Update

  7. Sources of AP indicators • CORINAIR • AIRBASE in addition: • Auto Oil 2 • ShAIR

  8. AP Indicators - current set • Emission indicators • information on trends (1980-present) • information on sector contributions • aggregated information on theme: • ground-level ozone • acidification and eutrophication • pm10 exposure

  9. Emissions of O3-precursors

  10. Emissions of O3-precursors

  11. Evaluation of NOx emissions

  12. Environmental Policy

  13. Environmental Policy

  14. Pressure Problems ? • PM10/PM2.5 -emission data • Consensus on aggregation procedure • Indicator for Urban Air Pollution? • Missing years (now simple interpolation) • Emissions of toxic pollutants (HM, POP)?

  15. Air Pollution Indicators • Air Quality • (urban) population exposure to • ozone • SO2 • NO2 • particulate (PM10) • exceedance of critical loads (EMEP) • acid • nitrogen input

  16. Env Signals: UAQ • SO2, particulate (TSP, BS, PM10), NO2, O3 • observed data (AirBase, O3-dir) • counting exceedance days • not fully in line with DD • short term limit values

  17. Urban AQ: NO2

  18. Urban AQ: Ozone

  19. TERM: UAQ

  20. State problems ? • Spatial coverage • missing regions • urban or/and rural • harmonisation of MM • stable network • temporal: historic data • most critical LV • model vs measurement

  21. Impact indicators • Ecosystems: • exceedances of critical loads/levels • Human health • ??????????

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