Category: Construction and property developers, Air quality assessments

Residential Air Quality Assessment, Dartford

Air Quality Assessment for a proposed development in Dartford.

The challenge

The proposed residential development falls within Dartford, an area which suffers from elevated levels of air pollution, primarily due to high levels of traffic. Dartford Borough Council has declared four Air Quality Management Areas (AQMA)s; the proposed development site is adjacent to an AQMA at the Dartford town centre and approach roads. Another committed residential development whcih is expected to generate increased traffic levels, is located within the vicinity of the proprosed developemnt.

The solution

The dispersion modelling tool ADMS-Roads was used, in combination with local meteorological data and traffic data to predict nitrogen dioxide (NO2) and particulate matter (PM10) concentrations at the site. This allowed for the following future air quality scenarios to be modelled:

  • Should no developments go ahead
  • The nearby residential development goes ahead
  • Both the nearby residential development and the residential development in question go ahead

These scenarios were run using three different methods of estimating emissions released by the vehicle fleet:

  1. Maintaining Defra emission factor toolkit (EFT) vehicle fleet emission factors and background concentrations from a recent year, i.e. assuming no improvements to the fleet by the time the development is completed . This is a worst-case scenario.
  2. Using EFT emission factors and background concentrations for the year the development is expected to be completed, i.e. assuming Defra’s predicted improvements in the vehicle fleet by this year.
  3. Vehicle fleet emission factors for the future year from the Calculator Using Realistic Emissions for Diesels (CURED) v3A model combined with an updated background CURED background concentration that take a more pessimistic view than the Defra EFT on the performance of post 2019 diesel cars and vans. It is considered to be a worst-case sensitivity test. It is worth noting that the CURED model only includes NO2; PM10 is not estimated.

The result

The results of the assessment indicate that the annual mean NO2 and PM10 objective level concentrations will not be exceeded at the development site or on nearby residential roads that will experience increases in traffic due to the cumulative impact of both this development and the nearby development. Therefore, no specific mitigation is required. However, the developer was encouraged to consider measures such as providing secure and covered cycle storage, implementing a travel plan, and installing electric charging points, to reduce the traffic emissions arising from the development.

See all case studies

Holly Zhang

Consultant

Related case studies

Residential AQA, Westbourne Park in London

Category: Construction and property developers, Air quality assessments

Aether was commissioned to undertake an air quality assessment, air quality neutral assessment and construction dust assessment for a proposed large residential development on Edenham Way in Westbourne Park in London.

Read case study

Air quality monitoring

Category: Construction and property developers, Air quality assessments

Aether was commissioned by Berkeley Homes to undertake an air quality assessment for the proposed installation of gas fired boilers at 250 City Road.

Read case study

Industrial air quality assessment

Category: Construction and property developers, Air quality assessments

Aether was commissioned by Ballymore to undertake an air quality assessment for a proposed energy centre in phase 2 of the development at Royal Wharf in the London borough of Newham.

Read case study

News

Latest news

Posted on: 11 June 2021

Northern Ireland HFC and ODS Market Analysis

Aether, alongside Barbara Gschrey (Oko Recherche), David Tyrer (Air Quality Consultants) and Ray Gluckman (Gluckman Consulting) have been supporting the Department of Agriculture, Environment and Rural Affairs (DAERA) in undertaking a analysis of the markets of hydrofluorocarbons (HFCs) and ozone-depleting substances (ODS) in Northern Ireland (NI).

Read full story

Posted on: 03 June 2021

The 2021 Task Force on Emission Projections

Nearly 200 air quality inventory compilers, modellers and policy makers from around the world participated in the 2021 meeting of the UN's Task Force on Emission Projections (TFEIP).

Read full story

Posted on: 03 June 2021

Welsh Government Public sector net zero reporting guide

Aether lead the development of the Welsh Governments net zero reporting guide now published for use by the Welsh Public Sector.

Read full story

Posted on: 20 May 2021

Collaborative Meeting for Small Inventory Teams

This week Aether hosted its first collaborative meeting for small national inventory teams, and we welcomed participants spanning Europe from Iceland to Cyprus.

Read full story

Testimonial

Don't just take our word for it...

“Both the face-to-face training and the online version have been of high quality, with dynamic methods and a practical orientation that have allowed students to reach a solid knowledge base. The products have been delivered within the stipulated deadlines with an excellent quality and the team has always shown willingness to make adjustments according to the requirements of CONAF. We are very satisfied with the work. ”

Javier Cano Martín, Professional Unit for Climate Change and Environmental Services, CONAF (National Forestry Corporation), Chile

“The team at Aether works very professionally and communicates very well which makes working with them a pleasure. Outputs are delivered on time to high quality. The team brings the rigour of technical knowledge and expertise and finds innovative ways of communicating complex messages. I would be happy to recommend the Aether team to organisations working on analysing and presenting emissions information in the public domain.”

Fiona Glover, States of Jersey

“Chris was excellent to work with and always very pro active in making suggestions, taking work forward and applying his considerable technical knowledge in effective ways.”

Robert Vaughan, Defra Air Quality Team

“Aether delivered training workshops and generated learning materials for our SSN members, providing technical content in a manageable and comprehendible format. We particularly benefitted from their extensive knowledge and ability to interpret the needs of our members into the training materials.”

Jennifer Anderson, Sustainable Scotland Network

“Saint Lucia embraces the professional approach with which this project was undertaken by Aether, particularly their ability to develop mentorship relations with local government experts. This provides a basis for ensuring that the pool of local experts remain engaged and recognized over successive processes.”

Annette Rattigan-Leo, Chief Sustainable Development and Environment Officer

“I must congratulate each of you for your professional and tireless efforts. Let me point out that this has been the 'neatest' in-country review expert review team I have coordinated, and it has been a real pleasure.”

UNFCCC Secretariat

“It is always an absolute pleasure working with Aether. I always know what is expected of me. Their work ethic is of a very high standard and projects are always handled in a very professional manner. I have learnt many skills in terms of project management, quality control and workshop training styles from Aether and I hope to carry these principles forward in my own work. I look forward to collaborating with Aether more in the future.”

Luanne Stevens, Gondwana

“The Aether team were a joy to work with and I would recommend the consultancy - the service provided throughout the process was exceptional. Where there were problems, they provided solutions. The team were working to very short time scales but were able to deliver a high quality piece of work within the specified time frame.”

Sefton Council - for the Merseyside Atmospheric Emissions Inventory

“Aether's approach to couple innovative visualisation with high expertise manpower delivered valuable insights for our inventory work.”

Umweltbundesamt (Germany)

“Aether is a great partner for work in the area of European Air Emissions. The team was committed, reliable, well organised and had a deep technical understanding and motivated other partners with their good spirit.”

Umweltbundesamt: Environment Agency Austria

Required form 'ContactES' does not exist.