نتایج جستجو برای: chrysene
تعداد نتایج: 368 فیلتر نتایج به سال:
cBecause data are sufficient and adequate to calculate an SQGHH for this land dData are insufficient/inadequate to calculate an SQGE for this land use. How benzpyrene, and benzo(d,e,f)-chrysene. B(a)P is one of the most potent and ubiquitous of the PAH carcinogens. It is negligibly volatile, has no odour, and usually occurs in complex mixtures containing many other PAHs, phenols, and aromatic a...
Diverse contaminants released into the environment through progress of urbanization and industrialization adversely affect human health. Among various sources of contaminants, especially, in big cities, automobiles play a significant role in aggravating the pollution. Various pollutants viz., heavy metals (Pb, Mn, Ni, Zn, As, Hg, Cd) and Polyaromatic hydrocarbons (Benzo-apyrene, fluoranthene, p...
The present study included an evaluation of the content of 16 PAH in sewage sludge produced in 15 sewage treatment plants in southeastern Poland. Besides determining PAH content, the influence of the amount and origin of the sewage purified in the PAH content was also evaluated. Possible PAH sources in sewage were also evaluated by the calculations of the mutual relations. The results obtained ...
In this study, the effects of different concentrations of pyrene, phenanthrene, fluoranthene, and chrysene within the solubility limits of the chemicals on marine microalgal species of Phaeodactylum tricornutum were examined under UV-A and UV-B lights by application of batch toxicity tests. The algal species were also exposed to the individual PAHs under cool-white fluorescent bulbs in the same...
Surface sediments collected from 33 stations along the Ambarli Harbor, the Sea of Marmara, were analyzed for petroleum aromatic hydrocarbons by UV-fluorescence. Higher concentrations of total aromatic hydrocarbons were found of all the samples collected during May 2009, with levels ranging 1860 and 72 μg/g eq oil (205 and 7 μg/g chrysene eq.). The spectra indicate dominant pyrolytic origins in ...
The metabolic activation in mouse skin of benzo[g]chrysene (B[g]C), a moderately carcinogenic polycyclic aromatic hydrocarbon (PAH) present in coal tar, was investigated. Male Parkes mice were treated topically with 0.5 micromol B[g]C and DNA was isolated from the treated areas of skin at various times after treatment and analysed by 32P-post-labelling. Seven major adduct spots were detected, a...
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants generated during combustion. Dibenzo[def,p]chrysene (DBC) is a high molecular weight PAH classified as a 2B carcinogen by the International Agency for Research on Cancer. DBC crosses the placenta in exposed mice, causing carcinogenicity in offspring. We present pharmacokinetic data of DBC in pregnant and nonpregna...
Abstract Polycyclic aromatic hydrocarbons (PAHs) are organic chemicals that consist of carcinogenic and mutagenic properties, which considered as high-priority persistent pollutants (POPs). Their source is due to an incomplete burning fossil fuels materials. In the present study, distribution concentrations 16 priority PAHs in sediments Tampamachoco lagoon Tuxpan River estuary at Gulf Mexico we...
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