Emissions Test at an Asphalt Concrete Production Plant: Asphalt Plant 'B', Cary,211 North Carolina. Volume 2 of 2: Appendices C, D, E, and F

摘要

The United States Environmental Protection Agency (USEPA) is investigating the211u001easphalt concrete production source category to identify and quantify emissions of 211u001ehazardous air pollutants (HAPs) from rotary aggregate dryers used at these 211u001efacilities. There are two types of rotary drum dryers in use at asphalt concrete 211u001eproduction plants: parallel flow, wherein the direction of travel of the drying 211u001eaggregate is the same as the direction of travel of the burner exhaust gases, and 211u001ecounter flow, wherein the aggregate and exhaust gas flows are opposite to each 211u001eother. On May 7, 1997, a work assignment was issued by EPA's Office of Air 211u001eQuality Planning and Standards, Emissions Measurement Center, (OAQPS, EMC) to 211u001ePacific Environmental Services, Inc. (PES), of Research Triangle Park, North 211u001eCarolina. The work Assignment specified that emissions testing for HAPs be 211u001econducted on one of each type of aggregate dryer. Two candidate facilities were 211u001etherefore identified and selected by EPA as host facilities for the testing 211u001eprogram. This document describes the test procedures, results, and quality 211u001eassurance procedures that were employ during the testing of a parallel flow 211u001erotary drum aggregate dryer, which was Asphalt Plant 'B', Cary, North Carolina 211u001efacility.