United States
Environmental Protection
Agency
Air and Radiation
E PA420-F-98-012
April 1998
Office of Mobile Sources
Emission Facts
Annual Emissions and Fuel Consumption for an "Average" Passenger Car1
Component
Hydrocarbons
Carbon Dioxide
Gasoline
Environmental
Impact
Urban ozone (smog)
Air toxics
Carbon Monoxide Poisonous gas
Nitrogen Oxides Urban ozone (smog)
Acid rain
Global warming
Renewable Resources
Emission Rate /
Consumption2
per Mile (mi)
3.01 grams (g)
21.4 grams
1.46 grams
0.0458 gallon
Average
Annual
Mileage3
11,300
11,300
11,300
0.807 pound (lb) 11,300
11,300
Calculation
(3.01 g/mi) x (11,300 mi) x (1 lb/454 g)
(21.4 g/mi) x (11,300 mi) x (1 lb/454 g)
(1.46 g/mi) x (11,300 mi) x (1 lb/454 g)
(0.807 lb/mi) x (11,300 mi)
(0.0458gallon/mi) x (11,300 mi)
Total Annual
Pollution/Fuel Consumption4
= 74.9 pounds of hydrocarbons
= 532 pounds of carbon monoxide
= 36.3 pounds of nitrogen oxides
= 9,119 pounds of carbon dioxide
= 518 gallons of gasoline
Notes:
1.	These are averages. Individual vehicles may differ in miles traveled and pollution emitted per mile than indicated here. Emission factors and pollution/fuel consumption
totals may differ slightly from original sources due to rounding.
2.	The emission factors used here come from standard EPA emission models. They assume an "average," properly maintained car on the road in 1998, operating on typical
gasoline on a summer day (72-96°F). Emissions may be higher in very hot or very cold weather.
3.	Source: EPA Office of Mobile Sources Assessment and Modeling Division, Mobile5 Model.
4.	Fuel consumption is based on average in-use passenger car fuel economy of 21.8 miles per gallon. Source: US DOT/FHA, Highway Statistics 1996 Tables.

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United States
Environmental Protection
Agency
Air and Radiation
E PA420-F-98-012
April 1998
Office of Mobile Sources
Emission Facts
Annual Emissions and Fuel Consumption for an "Average" Light Truck1
Component
Hydrocarbons
Carbon Dioxide
Gasoline
Environmental
Impact
Urban ozone (smog)
Air toxics
Carbon Monoxide Poisonous gas
Nitrogen Oxides Urban ozone (smog)
Acid rain
Global warming
Emission Rate/ Average
Consumption2 Annual
P<=r	Mileage3
3.40 grams(g)
26.1 grams
1.68 grams
11,800
11,800
11,800
0.996 pound (lb) 11,800
Nonrenewable Resource 0.0565 gallon
11,800
Calculation
(3.40 g/mi) x (11,800 mi) x (1 lb/454 g)
(26.1 g/mi) x (11,800 mi) x (1 lb/454 g)
(1.68 g/mi) x (11,800 mi) x (1 lb/454 g)
(0.996 lb/mi) x (11,800 mi)
(0.0565 gallon/mi) x (11,800 mi)
Total Annual
Pollution/Fuel Consumption4
= 88.4 pounds of hydrocarbons
= 678 pounds of carbon monoxide
= 43.7 pounds of nitrogen oxides
= 11,753 pounds of carbon dioxide
= 667 gallons of gasoline
Notes:
1.	These values are averages. Individual vehicles may differ in miles traveled and pollution emitted per mile than indicated here. Emission factors and pollution/fuel
consumption totals may differ slightly from original sources due to rounding.
2.	The emission factors used here come from standard EPA emission models. They assume an "average," properly maintained truck on the road in 1998, operating on typical
gasoline on a summer day (72-96°F). Emissions may be higher in very hot or very cold weather.
3.	Source: EPA Office of Mobile Sources Assessment and Modeling Division, Mobile5 Model.
4.	Fuel consumption is based on average in-use light truck fuel economy of 17.7 miles per gallon. Source: US DOT/FHA, Highway Statistics 1996 Tables.

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