ISBN 978 0 7559 7296 8
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Contents
Executive summary
1 Introduction
1.1 Drivers for biomass use in Scotland
1.2 Background to potential air quality impacts of biomass combustion
1.2.1 Airborne Particulate Matter
1.2.2 Emissions from biomass boilers
1.3 Overview of the Scottish Biomass Study
1.4 Clean Air Act
2 Development of emissions factors for biomass combustion
2.1 Emissions measurements
2.1.1 Boiler selection
2.1.2 Testing methodology
2.1.3 Results
2.1.4 Derivation of emission factors for use in the model
2.2 Comparison with existing emission factors
2.3 Comparison with the London biomass study
3 Scenario development and air quality modelling
3.1 Dispersion modelling
3.2 Background concentrations
3.2.1 Emissions from domestic, transport, commercial, industrial and agricultural sources
3.2.2 Emissions from large point sources
3.2.3 Emissions from other sources throughout UK and Europe
3.2.4 Emissions of sulphur dioxide and nitrogen oxides
3.2.5 Coarse particulate matter from wind-blown dust, sea salt and other natural sources.
3.2.6 Verification of modelled concentrations against measured concentrations
3.3 Overview of scenario development
3.4 Dundee modelling
3.4.1 Recent year, 2006: Dundee
3.4.2 Business as usual, 2010: Dundee
3.4.3 Future year 2010, with proposed biomass: Dundee
3.4.4 Business as usual, 2020: Dundee
3.4.5 Future year 2020, with substantial biomass combustion: Dundee
3.4.6 Summary for Dundee
3.5 Edinburgh modelling
3.5.1 Recent year, 2006: Edinburgh
3.5.2 Business as usual, 2010: Edinburgh
3.5.3 Future year 2010, with proposed biomass: Edinburgh
3.5.4 Business as usual 2020: Edinburgh
3.5.5 Future year 2020, with substantial biomass combustion: Edinburgh
3.5.6 Total concentrations
3.5.7 Summary for Edinburgh
4 Air Quality Screening Tool for Biomass Combustion in Scotland
5 Conclusions
6 References
Appendices
Appendix 1 Emissions Test Results
Appendix 2 Edinburgh Scenario Development and Modelling Results for 2020 with Substantial Biomass Combustion
Appendix 3 Air Quality Screening Tool for Biomass Combustion in Scotland
The views expressed in this report are those of the authors and
do not necessarily reflect those of the Scottish Government or
Scottish Ministers