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Experts and advocates urge ban or strict limits on coal‑tar sealants to reduce PAH pollution
Summary
Environmental witnesses backed HB 16 14 to restrict coal‑tar pavement sealants because they release high levels of carcinogenic PAHs into dust and waterways; speakers recommended a 1,000 ppm PAH threshold and noted affordable asphalt alternatives.
Representative Lisonbee Knabb opened HB 16 14, outlining scientific and public‑health concerns about polycyclic aromatic hydrocarbons (PAHs) in coal‑tar based sealants used on parking lots and driveways. Environmental scientist Steve Greeson, who worked on an EPA grant to certify PAH content in pavement sealers, told the committee coal‑tar sealants commonly measure tens of…
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