USGS experts cite coal tar sealers' risks
Photo credit: iStockphoto.com | Driveway sealer seen in this photo.
Officials of the U.S. Geological Survey in Austin, Texas, told Suffolk lawmakers in Hauppauge Thursday a ban on coal tar sealers for driveways and parking lots could begin to significantly reduce contamination within five years and cut it in half in 15 years.
Barbara Mahler, a USGS research hydrologist, made the assessment during a nearly hourlong Web briefing on the hazardous effects the...
