Update and Screening Assessment of Air Quality in West Wiltshire (July 2003)

This report is the first step of a revised review and assessment process which is referred to as an Updating and Screening Assessment looking at Air Quality.

The purpose of the report if to identify any significant changes which may impact upon air quality since the first round of review and assessments was completed in 2000.

The report looks at any new monitoring data; new objectives; new sources or significant changes to existing sources, either locally or in neighbouring authorities and other local changes that might affect air quality.

This Updating and Screening Assessment concludes that a detailed assessment will have to be undertaken for nitrogen dioxide as it is likely that an exceedance of the objective will occur in the towns of Bradford on Avon and Westbury. It should be noted that these two towns are subject to Air Quality Management Areas and work is currently progressing in this area.

Main report (pdf file, opens in new window)

Appendices

Appendix 1 Maps showing AADTs for roads in West Wiltshire

Appendix 2 Wiltshire County Council traffic data

Appendix 3 Plan of all nitrogen dioxide diffusion tube locations in West Wiltshire

Appendix 4 Bristol Scientific Services analytical quality control report

Appendix 5 Plan of automatic monitoring site, Westbury

Appendix 6 Site calibration checklist

Appendix 7 Site pre-calibration checklist

Appendix 8 Nitrogen dioxide diffusion tube locations, Westbury

Appendix 9 Nitrogen dioxide diffusion tube and automatic monitoring site, Bradford on Avon

Appendix 10 Graphs showing NO2 diffusion tube results for 2002 in Westbury and Bradford on Avon

Appendix 11 Data from first round of review and assessment

Appendix 12 Nitrogen Dioxide Diffusion Tube Report, Yarnbrook