Origin: Virginia Date: 1993 Categories: Emissions Key Words:
Summary: Stack testing was conducted at the MEGA Contractors, Inc. asphalt plant in Rockville, Virginia, by Entropy Environmentalists, Inc. for KTA Environmental and the Virginia Department of Transportation (VDOT) on September 1 and September 3, 1993. The pilot testing program was conducted to assess the air quality impact of adding crumb rubber to hot mix asphalt (HMA). The use of scrap tire rubber is a legislative requirement of the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA). Pollutants tested included: Toxic Air Pollutants/Hazardous Air Pollutants (Benzene, Ethyl Benzene, Toluene, Xylenes, Styrene and Polycyclic Aromatic Hydrocarbons), Volatile Organic Compounds (VOCs), and Particulate Matter (total and PM-10).