Update and Screening Assessment
The ongoing national review and assessment of air quality requires all local authorities to undertake an Updating and Screening Assessment (USA) of the air quality within their area, once every three years. The USA is intended to identify significant changes to air quality and is based on a checklist approach for each of the seven key pollutants.
(pdf, 915KB)Website feedback
This page contains links to PDF documents. To read these you need the free Adobe
Reader software. Follow the link below to download this software from Adobe's
website:
For advice on the reader's accessibility features see Access Adobe
For advice on the reader's accessibility features see Access Adobe