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Event Organiser: ICE

Air quality issues on the Welsh strategic road network, webinar

  • Webinar
  • Online
  • 08 March 2021
  • 13:00 - 14:00
Air quality issues on the Welsh strategic road network, webinar

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The European Directive (2008/50/EC) on ambient air quality and cleaner air sets out legal limits for a number of atmospheric pollutants including particular matter (PM), Ozone and Nitrogen Dioxide (NO2) and the steps that must be taken to address exceedances. Within the UK, the Pollution Climate Mapping (PCM) Model, updated annually by DEFRA, is designed to fulfil part of the UK's Directive requirements to report on concentrations of these pollutants and is the agreed national source for identifying areas or routes that exceed the limit levels.

In 2017, the DEFRA PCM Model identified a number of locations in Wales where levels of NO2 exceeded the Directive limit (40µg/m3). Following a High Court challenge, where Welsh Ministers accepted that they had not taken the appropriate actions to ensure that these locations became compliant in the shortest possible time, a series of investigations using the approach set out in the Welsh Transport Appraisal Guidance (WelTAG) were undertaken.

This webinar will provide an overview of the work undertaken by the Welsh Government and two  Local Authorities in the past three years to address the NO2 exceedances and the early monitoring results following implementation of the measures arising from the investigations.


Mark Emmett

Mark Emmett

Mark is an Incorporated Engineer who works as the Climate Change Programme Manager in the Strategic Road Network Division of the Transport Directorate in the Welsh Government. In addition to air quality, he is responsible for noise, carbon, climate change and litter matters relating to the network.

Mark has worked in the industry for over 20 years in a number of roles in both the public and private sector. He initially gained significant experience in the fields of traffic and road safety engineering and after joining the Welsh Government in 2015, he further broadened his knowledge through his appointment as Trunk Road Area Manager for South East Wales.

Mark initially became involved in transport-related air quality in late 2017, but has seen his role rapidly expand, as climate change becomes a key factor in the improvement, maintenance and management of the Strategic Road Network in Wales.

Andrew Carter

Andrew Carter

Andrew is acting senior policy manager for air quality in the Welsh Government’s Economy, Skills & Natural Resources department, having joined the team at the beginning of 2018. At the time the team was developing its legal response in the matter of R (ClientEarth (No 3)) v 1. Secretary of State for Environment, Food & Rural Affairs 2. The Secretary of State for Transport 3. Welsh Ministers. The action concerned a breach of EU Directive limit values for nitrogen dioxide concentrations.

Andrew is currently leading on the programme to deliver legal compliance with the Ambient Air Quality Directive, and Welsh regulations, as well as wider actions to improve air quality for the benefit of health, biodiversity and the natural environment.

Specific responsibilities include Local Air Quality Management policy, development of behavioural change approaches to tackling air pollution, and policy for managing polluting emissions from industry.

Current priorities include the development of a Clean Air Zone Framework for Wales, and associated provisions for the proposed Clean Air Act for Wales, and collaboration with Transport colleagues in the development of road user charging approaches to support a more equitable, efficient and sustainable transport system.

Event venue

United Kingdom

For more information please contact:

Felicity White

e: [email protected]