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Estimated Emissions from Solid Waste Collection Trucks
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Assumptions:
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All emissions factors and global warming potentials taken from The Climate Registry 2020 Default Emissions Factor, unless otherwise noted
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Total - Waste Management
Electric Trucks were assumed to have been charged utilizing electricity generated by Seattle City Light. Emissions factors for electricity was provided by Seattle City Light
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CO2CH4N20CO2e
Waste Management trucks were assumed to burn the equivalent of 3 miles per diesel gallon equivalent of compressed natural gas
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2019 804,966.40 4,790.95 1.29 939,456.09 kg CO2e 3,407.65
Metric tons CO2e
Consumption for WM trucks was provided by Waste Management
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2020 838,124.88 4,988.30 1.35 978,154.53 kg CO2e 3,548.02
Metric tons CO2e
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Assumed that emissions factors for R99 is identical to diesel, based on guidance from TCR 2020 Default Emissions Factors
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Calculated B20 by proportion based on TCR 2020 default emissions factors.
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Estimated Miles from Solid Waste Collection Trucks
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Total - Waste Management
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2019MilesFuel Fuel TypeUnits
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 1,294,851.00 431,617.00 CNGDGE
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2020MilesFuel Fuel TypeUnits
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 1,348,189.00 449,396.33 CNGDGE
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