An air quality consultant is an IAQM (Institute of Air Quality Management) qualified specialist who assesses the impact of development on local air quality, and the impact of existing air pollution on new development. Air quality assessments are required by planning authorities for development in or near Air Quality Management Areas (AQMAs), for schemes generating significant additional traffic, and for construction projects near sensitive receptors. The consultant models pollutant concentrations, assesses health impacts, and advises on mitigation measures including Low Emission Strategies and Construction Dust Management Plans.
What they do
- Carry out screening-level and detailed air quality impact assessments
- Model pollutant concentrations using ADMS, AERMOD or DMRB methods
- Assess impacts on sensitive receptors including residents, schools and hospitals
- Prepare Construction Dust Management Plans
- Prepare Low Emission Strategies for developments generating significant traffic
- Carry out air quality monitoring using diffusion tubes or continuous monitors
- Discharge air quality planning conditions
- Advise on mitigation including electric vehicle charging infrastructure
When you need one
Check whether your site is in or near an AQMA before submitting a planning application - many local authorities maintain AQMA maps online. Air quality assessment is required in the following situations.
Typical costs (UK, 2025)
| Service | Typical cost |
|---|---|
| Screening level assessment | £700 - £1,500 |
| Detailed air quality impact assessment | £1,500 - £5,000+ |
| Construction Dust Management Plan | £500 - £1,200 |
| Low Emission Strategy | £600 - £1,500 |
| Air quality monitoring (diffusion tube network) | £500 - £2,000 |
| Hourly rate | £75 - £130 / hr |
Complex industrial or energy-from-waste assessments requiring detailed dispersion modelling (ADMS or AERMOD) can cost significantly more. Obtain a clear scope and deliverables list before appointing.
Qualifications to look for
The primary professional body for air quality specialists in the UK. MIAQM membership demonstrates competence in air quality assessment. Check membership at iaqm.co.uk. The PIAQM designation (Practitioner) is for more junior practitioners.
Air quality consultants typically hold degrees in environmental science, chemistry, physics or engineering. Many have postgraduate qualifications in atmospheric science or environmental management.
How to find a reputable air quality consultant
Frequently asked questions
What is an Air Quality Management Area?
A designated area where local air pollution levels exceed national objectives set under the Environment Act 1995. Local authorities must declare an AQMA and produce an Air Quality Action Plan when objectives are breached. Development in or near AQMAs typically requires an air quality assessment demonstrating that the development will not worsen air quality or expose new occupants to unacceptable pollution levels.
What pollutants are typically assessed?
NO2 (nitrogen dioxide) from vehicle exhausts is the most commonly assessed pollutant near roads and is the primary reason for most AQMA declarations. PM10 and PM2.5 (fine particles) are assessed near dusty operations and busy roads. Carbon monoxide, benzene and other pollutants are assessed for specific industrial and energy-from-waste applications.
Can development be refused on air quality grounds?
Yes - planning applications can be refused if they would cause significant deterioration of air quality or expose new residents to unacceptable pollution levels without appropriate mitigation. Developments that would significantly increase traffic in an AQMA are particularly at risk of refusal or the imposition of stringent mitigation measures such as low emission vehicle requirements and contribution to local air quality action plans.