Air quality

We are required to regularly review and assess air quality in Dacorum. Air quality objectives have been set for the following seven key pollutants:

  • Benzene
  • 1,3-butadiene
  • Carbon monoxide
  • Lead
  • Nitrogen dioxide
  • PM10
  • Sulphur dioxide

For more information on the health effects of these pollutants, please visit the Department for Environment, Food and Rural Affairs website.

Air quality data and pollution forecasts

Air quality data and pollution forecasts for Dacorum are available on the Air Quality England website.

Air Quality Action Plan

Our Air Quality Action Plan details the measures we plan to take in order to improve air quality in the borough. The measures are mainly targeted towards reducing pollution from road traffic.

Our latest Air Quality Action Plan is currently being reviewed for 2024-2029 and will be published shortly.

Eco driving tips

 Air Quality Action Plan eco driving tips (PDF 280KB)

Assessment reports and maps

Please click on the headings below to view the Local Air Quality Management (LAQM) review and assessment reports and details of our Air Quality Management Areas (AQMAs).

Local Air Quality Management (LAQM) review and assessment reports

Air Quality Management Areas (AQMAs)

Please note: For accessibility reasons we have provided the unofficial (unsealed) version of the Northchurch Revocation Order. The official sealed order can be provided upon by request by emailing

Reporting smoky vehicles

Road traffic emissions are the main source of poor air quality in Dacorum. You can help reduce emissions by reporting vehicles that are extremely smoky to the Driver and Vehicle Standards Agency (DVSA).

Report excessively smoky lorries and buses to the DVSA.

Local Plan flats and houseHelp shape the future of Dacorum by having your say on our revised draft Local Plan. The deadline for making comments is 11.59pm on Monday 11 December 2023. Find out more and give your feedback.   ×