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Scottish Pollution Mapping

Scottish Pollution Mapping. Nicola Brophy nicola.brophy@aeat.co.uk. Background. AEA’s Pollution Climate Mapping team produce UK maps on behalf of Defra and the Devolved Administrations 2004 & 2005 – Scotland Specific Scottish meteorological data

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Scottish Pollution Mapping

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  1. Scottish Pollution Mapping Nicola Brophy nicola.brophy@aeat.co.uk

  2. Background • AEA’s Pollution Climate Mapping team produce UK maps on behalf of Defra and the Devolved Administrations • 2004 & 2005 – Scotland Specific • Scottish meteorological data • Scotland only AURN sites for calibration of the model • Mixed results • Particularly for gravimetric PM10 • Refocusing efforts

  3. Introduction to the Model Components of the model: • Point source model • Environment Agency and SEPA database • Area source model • Dispersion kernel • Long range transport and secondary inorganic aerosols http://www.airquality.co.uk/archive/reports/cat09/0709241126_dd12005mapsrep_v2.pdf

  4. Examples of Mapping Results Scottish model NOx background annual mean 2005 map for Scotland (g m‑3 as NO2) Verification of Scottish NOx background and roadside annual mean 2005 model (g m‑3 as NO2)

  5. Further Work on Scottish Mapping Project • 2006 • Scotland specific verification • 2007 • Scotland specific gravimetric particulate maps due to increased number of sites – 1 year only • To include PM10 and PM2.5 • Scotland specific verification for other pollutants

  6. Model developments • Improvements and changes to Models • PM10 • Residual concentrations reduced • More certainty in sea salt concentrations • Secondary inorganic aerosols • Iron • Change to calibration • Singles relationship for calibration • Different types of dispersion kernels for differing land types • Biomass!

  7. Biomass Burning • Government committed 15% of all energy to be from renewable sources by 2020 • Defra and the Scottish Government assessing the air quality risks from burning biomass • AEA developing projection maps for 2010, 2015 and 2020 • Scenarios • Uptake of 5-7% biomass burning • Fuel replacement • Regionally specific variations • Pollutants: PM10, PM2.5, NOx and NO2

  8. Questions… nicola.brophy@aeat.co.uk andrew.kent@aeat.co.uk http://www.airquality.co.uk/archive/reports/cat09/0709241126_dd12005mapsrep_v2.pdf

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