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

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Background AEAs 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 PM 10 Refocusing efforts

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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

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Examples of Mapping Results Verification of Scottish NO x background and roadside annual mean 2005 model ( g m 3 as NO 2 ) Scottish model NOx background annual mean 2005 map for Scotland ( g m 3 as NO2)

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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 PM 10 and PM 2.5 Scotland specific verification for other pollutants

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Model developments Improvements and changes to Models PM 10 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!

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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: PM 10, PM 2.5, NO x and NO 2

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