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Posted Fri Jan 8 2010: from Discovery News:
Toxic Dust from Tar Travels into Homes
A widely used type of asphalt sealant derived from coal tar may be making its way into the house dust of homes, according to new research. Young children may actually be playing on coal-tar-sealed driveways and playgrounds, potentially raising their exposure to harmful chemicals. The findings, presented at a meeting of the Society of Environmental Toxicology and Chemistry, concern a group of compounds called polycyclic aromatic hydrocarbons, or PAHs. Toxic compounds appear in the sealants, which are used to create an even, deep black pavement surface. And coal tar contains a high proportion of PAHs, with levels about 1,000 times higher than in the alternative, asphalt-based sealant.
[Read more stories about: contamination, coal issues, toxic buildup]

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