Proper management of a corporate air quality requires an understanding of air pollutants dynamic behavior and emission sources in both corporate and community levels. This work aims to identify the releases of air contaminants by the City of Edmonton’s corporate activities (as an example) and recommend a systematic means of monitoring and tracking corporate air pollution releases and reduction strategies over time.

1. Mohammad Afroughi
Department of Mechanical Engineering
University of Alberta
DEVELOPING A
CORPORATE AIR
QUALITY EMISSIONS
INVENTORY FOR A
MUNICIPALITY
Andrew Read
City Environmental Strategies
Urban Form and Corporate Strategic
Development
City of Edmonton
Logo of
mentor
organization

2. What is the role of City of Edmonton in Air Quality
Deterioration/Management?
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3. This project aims to
• Identify the releases of air contaminants by the city of Edmonton’s
corporate activities
• Develop a systematic means of monitoring and tracking corporate
air pollution releases
• Recommend reduction strategies
Project Overview
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4. Emission inventory, a powerful tool to track air pollutants
release over time
Energy to ambient pollutants cycle
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Dispersion
and Mixing
Conversion Units
Stationary & Mobile
Air Quality
Monitoring
Regulatory
Acts
Energy Source
Emissions
Ambient
Pollutants
Risk
Index
Public
Awareness
Optimization
Emission Inventory
Development
Emission
Trends

5. Main sources of criteria air contaminants (CACs)
emission associated with the City of Edmonton’s activities
• Electricity use
street lightning and powering the machinery and equipment within the building, facilities,
or transport fleet, including Light Rail Transit (LRT)
Indirect & stationary source of CACs
• Natural Gas Combustion
Heating of the buildings or facilities owned or managed by the City of Edmonton
Direct & stationary source of CACs
• Fuel Combustion by fleet
burning of fossil fuels (gasoline or diesel) in the public transport or the City owned
vehicles
Direct & mobile source of CACs
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6. Main relation: 𝐸"#" = 𝐴 × 𝐸𝐹"#"
Emission factor specification for
Emission inventory development by emission factors
• Electricity use
In-house
𝐸𝐹"#",#* =
∑ ,-./,0×12343,-./,0 0 6 ∑ ,.78,9×12343,4:9 ; ∑ ,<=8,<×12343,<<
∑ ,-./,00 6 ∑ ,.78,99 ; ∑ ,<=8,<<
• Natural Gas Combustion
From documents (EMPEP/EEA), based on boiler size
• Fuel combustion by fleet
From documents (US EPA MOVES), based on vehicle class and model-year
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7. Data Collection, the biggest challenge in Emission
Inventory Development!
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8. Top Recommendations
Compile the corporate emission inventory in a yearly basis with
updated emission factors and track the reduction plans.
Apply air pollution control strategies in forms of
• Efficient use of energy in buildings and facilities (NG & electricity)
• Efficient use of electricity for street lighting
• Emissions reduction by purchasing green power
• Efficient use of fuel (gasoline or diesel) in the transportation fleet
• Recovering air quality by planting trees
• Improvement of air quality monitoring network
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9. Thanks!
Any question?
You can find me at afroughi@ualberta.ca
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