Air Quality

We have a legal duty to assess airborne pollution in the District – as stated in Part IV of the Environment Act 1995.

Online: Free Air quality alerts
Tel: 01273-484-337

Online: Free cold weather alerts
Tel: 01273-484-337

You will be sent alerts by:

• Text/SMS
• Voice-mail
• Email

Mid Sussex District Council does not currently have any Air Quality Management Areas (AQMAs), which must be declared when legal limits for certain pollutants are exceeded. However, we recognise the importance of taking proactive steps to maintain and improve air quality before those limits are reached. Our Air Quality Strategy sets out how we will integrate air quality considerations into local decision-making and outlines initiatives at district and county level aimed at reducing pollution. The strategy supports national Air Quality Objectives and reflects our commitment to maintaining good air quality for everyone in Mid Sussex.

• Air Quality Strategy 2026 to 2030

Our Environmental Health Section monitors for Nitrogen Dioxide (NO2) at sites throughout the district. Nitrogen dioxide is a colourless gas produced by car and other vehicle engines. It can have an impact on health at high levels.

Mid Sussex District Council are members of the Sussex Air Quality Partnership (Sussex Air) which monitors air pollutants across the region and have published guidance for developers on emissions mitigation.

Recent air quality reports:

• Air quality annual status report 2025
• Air quality annual status report 2024
• Air quality annual status report 2023
• Air quality annual status report 2022
• Air quality annual status report 2021
• Air quality annual status report 2020
• Air quality annual status report 2019
• Air quality annual status report 2018
• Air quality annual status report 2017
• Air quality annual status report 2016
• Air quality Updating & Screening Assessment 2015
• Air quality progress report 2014
• Air quality progress report 2013
• Air quality updating and screening assessment 2012
• Detailed assessment 2011
• Air quality progress report 2011
• Air quality progress report 2010
• Air quality updating and screening assessment 2009

Former Stonepound Crossroads Air Quality Management Area Hassocks

This area was originally designated an Air Quality Management Area (AQMA) in March 2012 due to high levels of nitrogen dioxide from traffic. 

In accordance with DEFRA policy, Stonepound Crossroads was revoked as an Air Quality Management Area on 10 December 2024, as annual air quality monitoring data has shown levels of air pollution at consistently below the objective level for five consecutive years Revocation Order

Environmental Protection Team
Tel: 01444-477292
Email: pollution@midsussex.gov.uk