The Town of Seven Devils warns against the use of coal tar pavement sealants. Located in the beautiful Blue Ridge Mountains of North Carolina, Seven Devils is surrounded by local, state and national preserves and parks. Their website says:
Coal Tar Sealant Warning!!
Use of Coal Tar may be hazardous
to your health and the environment.
A link goes on to explain make the connection that they are a near neighboor to Boone, North Carolina that earlier this year imposed restrictions on the use of coal tar sealants because of a fish kill caused by washed-off coal tar sealant. Some resources about the Boone Sealant Fish Kill are: