Quantifying the health impacts of air pollution in the UK statistically is very complex and any figure depends on many assumptions and variables. District councils review and assess their air quality and report findings to Government on an annual basis in a process known as Local Air Quality Management (LAQM). Objective levels are set for seven air pollutants which apply where there are relevant receptors (people or ecosystems likely to be exposed). Cambridgeshire as in other areas, has declared AQMAs when concentrations of key pollutants are higher in some areas and where exceedences of objectives have been identified or predicted.
Air pollution can have short term health effects through triggering respiratory conditions such as asthma, and longer term effects on both respiratory and circulatory disease. Cambridgeshire has a number of Air Quality Management Areas (AQMAs), in which levels of pollutants are subject to additional monitoring and management.