Where the review and assessment process has identified that air quality objectives are not being met, Air Quality Management Areas (AQMA's) may be declared.
Actions taken to improve air quality can be focused on these areas and their success measured by ongoing monitoring and assessment of these specific areas. Currently there are 10 AQMA's in the Southampton. These are:
All of Southampton's 10 AQMAs have been declared for exceeding the nitrogen dioxide annual mean air quality standard. Source apportionment has shown that road vehicle emissions are the main source of the air pollution.
Pollution levels drop off rapidly from the kerb of busy roads. In general the air quality standard is only exceeded within 10metres or often less from the kerb.
The actions taken to improve air quality in the AQMA's and across the city are described in the Council's Air Quality Action Plan (AQAP), adopted in April 2008.