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Latest Phenalene Stories

2010-12-09 06:00:00

PAH Fingerprints Do Not Identify Pavement Sealants as Source ALEXANDRIA, Va., Dec. 9, 2010 /PRNewswire-USNewswire/ -- More than two years after Austin, TX banned refined tar sealants, there has been no discernable change in either the amount or sources of polycyclic aromatic hydrocarbons in sediment in Austin's waterways. Austin's ban went into effect on January 1, 2006. Results of a study of the ban's impact were just published in a paper titled Polycyclic Aromatic Hydrocarbons...

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). Abraded sealcoat may be an important contributor to PAHs found in U.S. streams, the researchers say. PAHs are known to have adverse health effects on animals, plants and people. The researchers found that PAH levels from runoff obtained...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'