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2010-12-09 06:00:00

PAH Fingerprints Do Not Identify Pavement Sealants as Source ALEXANDRIA, Va., Dec.

2005-06-22 12:40:00

A joint study by the U.S. Geological Survey and the City of Austin (Texas) has found that runoff from parking lot sealcoat, a black coating used to protect and beautify asphalt, is a previously unrecognized source of polycyclic aromatic hydrocarbons (PAHs).


Word of the Day
definiens
  • The word or words serving to define another word or expression, as in a dictionary entry.
The word 'definiens' comes from the Latin word 'definire', 'to define'.
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