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IAQM Webinar – PM2.5 emissions inventory and source apportionment for City of London (CoL)

February 6 @ 12:30 pm - 1:15 pm

This webinar will provides an overview of a study examining the extent to which the City of London Corporation (CoLC) could influence levels of PM2.5 in the Square Mile.

This was undertaken  to prepare for new statutory obligations for local authorities to manage emissions of PM2.5, and assist with meeting the new legislative standard required by the Environment Act 2021. The emissions inventory gives new and innovative information on the local sources which CoLC can target to improve PM2.5 in the City and beyond. 

Outcomes of the Study
The study involved a literature review on other sources apportionment studies and typical sources of PM2.5, together with analysis of the morphology and composition of PM2.5 to better understand markers for certain sources. Further discussions with CoLC was undertaken to understand the unique sources of PM2.5 in CoLC which included road and river traffic, combined heat and power units (CHPs), medium combustion plant (MCP), cooking in restaurants, emergency generators and generators from filming events, construction sites, street works and Non-Road Mobile Machinery (NRMM). Activity data for these sources was developed from information provided by CoLC and emission factors were researched for these sources. This information was used to estimate the emissions from each of these sources. For railway and flight path sources, other established emissions inventory data from the National Atmospheric Emissions Inventory (NAEI) or London Atmospheric Emissions Inventory (LAEI) were used.

The emissions inventory revealed that the highest PM2.5 emissions from the Square Mile are due to restaurants (37%), followed by combustion plant (20%), NRMM (16%), road traffic (13%), and river traffic (10%) with minimal contributions from construction sites and street works. Road traffic was the fourth highest contributor, and this is likely to decrease further with the expansion of the London Ultra Low Emission Zone.

This free online event is open to everyone.

Our speaker

Angela Goodhand, Senior Air Quality Consultant, Ricardo

Angela Goodhand has over 15 years’ experience as an environmental consultant. She specialises in delivering Environmental Impact Assessments (EIA) with respect to air quality, odour and dust for a wide spectrum of projects such as residential, mixed-use developments, energy from waste (EfW), biomass, industrial, large infrastructure schemes i.e., road and railway schemes. She is adept at dust risk assessments, dust monitoring plans, establishing dust monitoring at construction sites as well as noise monitoring for construction and planning projects and using detailed dispersion models like ADMS and GIS systems like surfer, QGIS and Mapinfo. She has full knowledge of the implementation Local Air Quality Management Review, a very good understanding of the UK air quality legislation and Environmental Permitting Regulations and has been involved in several large-scale projects including High Speed 2, Crossrail and Kings Lyn EfW.

Since joining Ricardo, she has expanded her expertise into developing emissions inventory and is part of the team collating the emissions inventory for seven cities in Bangladesh, Mongolia, Pakistan, Philippines and Viet Nam on behalf of Asian Development Bank (ADB) which will help establish the current air quality situation in the cities. With her experience in EIA, she has continued working in EIA by providing technically robust and detailed review of EIA outputs including scoping reports, scoping opinions and Environmental Statements (ES). She is also supporting the Pollution Climate Mapping (PCM) team in modelling the compliance of air pollutant concentrations for Scotland and across the UK.


February 6
12:30 pm - 1:15 pm
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