Coal tar sealants are applied as a protective coating for paved surfaces. Many polycyclic aromatic hydrocarbons (PAHs) are found in these sealants. Several of these PAHs are known or suspected to cause, or increase the risk of developing cancer, but to date there has been no published research on workplace exposures to coal-tar-based sealant. Researchers from the National Institute for Occupational Safety and Health (NIOSH) undertook the first occupational exposure assessment study for PAHs among coal-tar-based sealant workers. The results were recently published in the International Journal of Hygiene and Environmental Health and suggest that coal tar sealant workers
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