Well this is a first! After trolling the web about this topic for 5 years, I have yet to see the USEPA acknowledge this as an issue–until now. The below reference quotes studies by Mahler (USGS) and Scoggins (City of Austin). This is a significant. Here’s a quote:
Pavement sealants are routinely applied to parking lots and driveways to protect the underlying surfaces, and these sealants can be significant sources of PAHs.