Air Quality in Havant

Pollution monitoring, traffic emissions and clean air

Air quality in Havant is generally good by national standards, benefiting from the coastal location, the prevailing south-westerly winds that disperse pollutants, and the absence of heavy industry in the immediate area. However, localised hotspots of poorer air quality exist, particularly along the busiest roads, and the issue is monitored by the borough council.

The main source of air pollution in Havant is road traffic. Nitrogen dioxide and particulate matter from vehicle exhausts are the pollutants of greatest concern, and their concentrations are highest along the main roads where traffic volumes are heaviest. The A27 corridor, the town centre streets and the approach roads carry the most traffic and generate the most emissions. During periods of congestion, when vehicles are stationary or moving slowly with engines idling, pollution levels can rise significantly above background levels.

Havant Borough Council monitors air quality as part of its public health responsibilities, using diffusion tubes and automatic monitoring stations at key locations. The council publishes an annual air quality report that assesses whether the national air quality objectives are being met across the borough. Where objectives are at risk of being exceeded, the council is required to declare an Air Quality Management Area and produce an action plan to reduce pollution.

The shift towards electric vehicles is expected to improve air quality in the coming years, as tailpipe emissions from petrol and diesel vehicles are replaced by the zero-emission output of battery-powered cars. Electric vehicle charging points are being installed across the borough, in public car parks, at workplaces and in residential areas. The transition is gradual, but the direction of travel is clear.

Planning policy plays a role in managing air quality. New developments near busy roads may be required to demonstrate that air quality standards will be met for future residents. Conditions on construction sites can include dust management measures and restrictions on vehicle movements during the building phase.

The health effects of poor air quality are well documented, with long-term exposure to elevated levels of nitrogen dioxide and particulate matter linked to respiratory conditions, cardiovascular disease and reduced life expectancy. Children, older people and those with existing respiratory conditions are the most vulnerable groups. The overall picture for Havant is positive, with air quality that is acceptable for most residents most of the time, but the localised effects of traffic remain a concern that requires ongoing attention.

The health effects of poor air quality are well documented, with long-term exposure to elevated levels of nitrogen dioxide and particulate matter linked to respiratory conditions, cardiovascular disease and reduced life expectancy. Children, older people and those with existing respiratory conditions are the most vulnerable groups. The overall picture for Havant is positive, with air quality that is acceptable for most residents most of the time, but the localised effects of traffic remain a concern. The shift towards electric vehicles and improvements in public transport will help to improve air quality over time, but the benefits will take years to be fully realised.