Measurements of polycyclic aromatic hydrocarbon ( PAH ) bioaccessibility MEASUREMENTS OF POLYCYCLIC AROMATIC HYDROCARBON ( PAH ) BIOACCESSIBILITY AND THEIR USE IN THE ASSESSMENT OF HUMAN HEALTH RISK

Polycyclic aromatic hydrocarbons are a group of chemicals that are formed during the incomplete combustion of organic substances (e.g. coal, oil, gas, wood, rubbish, etc). They are found throughout the environment in the air (attached to dust particles), water, and soil. There are more than 100 different polycyclic aromatic hydrocarbons, which generally occur as complex mixtures not as single compounds, and the health effects of individual polycyclic aromatic hydrocarbons differ. With respect to human health risk, the 16 polycyclic aromatic hydrocarbons typically analysed for are: acenaphthene (ACE), acenaphthylene (ACY), anthracene (ANTH), benzo(a)anthracene (BaA), benzo(a)pyrene (BaP), benzo(b)fluoranthene (BbFLN), benzo(g,h,i)perylene (BghiP), Benzo(k)fluoranthene (BkFN), chrysene (CHR), dibenzo(a,h)anthracene (DBahA), fluoranthene (FLN), fluorene (FLR), indeno(1,2,3-cd)pyrene (IPY), naphthalene (NPH), phenathrene (PHN) and pyrene (PYR). These are often referred to as the USEPA priority polycyclic aromatic hydrocarbons. Under current UK waste regulations this list is extended to include coronene. Generally more is understood about these 16 polycyclic aromatic hydrocarbons and there is a greater chance that you will be exposed to them. They are thought to be the more harmful of the polycyclic aromatic hydrocarbons and exhibit harmful effects that are representative of polycyclic aromatic hydrocarbons as a group.

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