Varying amounts of PAHs are present in creosote, which has been traditionally
used as a wood preservative in the foundations of buildings, in fences and in
the manufacture of garden furniture and outdoor recreational facilities in parks.
B[a]P levels of 58–749 μg/g were found in creosote-impregnated wood products
The EU restricts creosote applications inside buildings (44) and Japan restricts
the B[a]P content in creosote (45), but creosote-treated wood might be an indoor
source in other parts of the world.
Finally, mothball storage is associated with significant levels of naphthalene
(39,46), acenaphthalene, phenanthrene and fluorene indoors