Both polycyclic aromatic hydrocarbons (PAH) and perfluoroalkyl substances (PFAS) can be found in lakes, rivers, streams, and municipal water supply and are harmful to humans and our environment. One may be lesser known in some regions, but widely recognized (and banned) on the west coast, mid-west, and locally in Greenville, South Carolina, and Asheville, Charlotte, Mecklenburg County, Town of Matthews, and Boone, North Carolina. PAHs are a group of chemicals created by heating or burning material that contains carbon. PAHs are present in coal tar sealers, asphalt sealers, and liquid propane (LP) derived sealers. Although coal tar sealers have a higher PAH level than other sealers, PAHs are present in high levels in asphalt and LP-based sealers. The speaker will provide insight from his position as the Southeast U.S. Director of the Asphalt Sealcoat Manufacturer’s Association (ASMA). The purpose of ASMA is to provide a common specification for asphalt-based sealers for use by governmental and private bodies to ensure both quality and environmental safety.
Contributor/Source
Jason Weaver;Thomas Ennis
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