How Shipping Affects Air Pollution

Transportation related air pollution:

- Ground freight (diesel trucks, trains) emit 40% of NOx and 30% of particulate matter.
- Moving freight uses 20% of the total amount of energy used by the transportation market.
- 66% of all freight in the U.S. is shipped by truck.
- 16% is shipped by train.
- Truck and train transport use 35 billion gallons of diesel fuel per year, producing 350 million metric tons of carbon dioxide.

See the Source:
Industry Week

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diesel emissions
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