Polycyclic aromatic hydrocarbons (PAHs), also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH. PAHs occur in oil, coal, and tar deposits, and are produced as byproducts of fuel burning (whether fossil fuel or biomass). As a pollutant, they are of concern because some compounds have been identified as carcinogenic, mutagenic, and teratogenic. PAHs are also found in cooked foods. Studies have shown that high levels of PAHs are found, for example, in meat cooked at high temperatures such as grilling or barbecuing, and in smoked fish. They are also found in the interstellar medium, in comets, and in meteorites and are a candidate molecule to act as a basis for the earliest forms of life.

Benzo-a-pyrene
naphthalene

PAHs 의 구조

wikipedia:http://en.wikipedia.org/wiki/Polycyclic_aromatic_hydrocarbon

Metabolism

Non - ligninolytic fungi

Class	Genus
Zygomycetes	cunninghamella blakesleeana , M verrucosa
	C.ehinulata ,Mucor racemosus
	C.elgans 외 3 Genus
Ascomycetes	Cryphonectria parasitica ,Neurospora crassa 외 4 Genus
Blastomycetes	Candida krusei , Rhodotorula gutinis 외 5 Genus
Hyphomycetes	Aspergillus niger , Monosporium olivaceum 외 30 Genus
Coelomycetes	Cinnobolus cesatii , C,sporulosum 외 3 Genus