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Source: U.S. Environmental Protection Agency (EPA), 1987, Emission control technologies and emission factors for unpaved road fugitive emission, EPA 625/5-87/002 (Cincinnati: U.S. EPA, Center for Environmental Research Information).

Source: U.S. Environmental Protection Agency (EPA), 1987, Emission control technologies and emission factors for unpaved road fugitive emission, EPA 625/5-87/002 (Cincinnati: U.S. EPA, Center for Environmental Research Information).

borne from wind or machinery action. These fabrics are referred to as road carpets, and alternatively they prevent erosion by rain runoff.

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