For the first time, a toxicologist has publicly presented the probable risks to children exposed to soil and dust tracked into homes from coal tar pavement sealants. An excess risk of 1 in 10,000 was estimated. Federal law deems this risk “unacceptable” and is “sufficient basis” for action. While the professor from Baylor University, Dr. Spencer Williams, thought more information should be studied, others at the conference wondered if it wasn’t more than enough.
|“CSA”-coal tar sealant affected|
|from Site remediation planning and management by J. Andy Soesilo, Stephanie R. Wilson|
One of the highlights for me was when Pete Van Metre asked Anne LeHuray of the Pavement Coatings Technology Council a pleasant, but direct question. Essentially he asked, “while our experts disagree about theoretical PAH modeling, how do you respond to the extraordinarily high, real PAH values found on coal tar parking lots at many locations and in many coal tar products?” She gave no answer to this direct question. Why? Because there is no good answer.
A video stream of the conference, along with the presenters’ slides, can be found at http://mediasite.dl.uconn.edu/Mediasite/Viewer/?peid=c74edb04-b9c1-4882-afcc-4c7c69b3e236