USGS: Austin Coal-Tar Sealant Ban Leads to Decline in PAHs (6/16/2014)

The 2006 prohibition on the use of coal-tar-based pavement sealants in Austin, Texas, has resulted in a substantial reduction in polycyclic aromatic hydrocarbons (PAHs), according to a new study by the U.S. Geological Survey.

Source: www.usgs.gov

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