The effects of varying doses of three polycyclic aromatic hydrocarbons, 3-methylcholanthrene (MCA), benzo(a)pyrene (BaP), and benzo(e)pyrene (BeP), on cell-mediated immune functions of in vivo mitogen-activated splenic lymphocytes were measured. Inbred mice (C57, C3H, and DBA) were given injections i.p. with phytohemagglutinin to activate splenic lymphocytes and were subsequently treated, via t...

To determine the relative contributions of tobacco smoking and P-450 metabolism (cytochrome P-450iAi) in the formation of benzo(a)pyrenediol-epoxide and other polycyclic aromatic hydrocarbon-DNA adducts in vivo, 16 human placentas were assayed for aryl hydrocarbon hydroxylase activity and (±)r-7,f-8-dihydroxy-c-9,10-epoxy-7,8,9,10-tetrahydrobenzo(a)pyrene-DNA adduci levels. Immunoaffinity chro...

kharg island as the most important oil export terminal of iran has faced entrance of various oilmaterials, so it seems necessary to know about the amount of these marine oil pollutants and their origin in this area. oil hydrocarbons has entered in this water body as a result of numerous human activities like extraction, refinement, transmission and export of raw oil or from natural and biologic...

A total of 10 surface soil samples representing the entire area of Linfen City were collected and analyzed for the presence of 16 polycyclic aromatic hydrocarbons. The total polycyclic aromatic hydrocarbon concentration ranged from 1.1 to 63.7 microg g(-1). Analysis of the sources of contamination revealed that polycyclic aromatic hydrocarbons in the soil were derived from combustion sources. S...