نتایج جستجو برای: chrysene

تعداد نتایج: 368  

1999

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...

2014
Rajwant Kaur

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...

2005
S. Baran P. Oleszczuk

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 ...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2007
Oya S Okay Burak Karacik

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...

2015
S. Unlu R. Apak

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 ...

Journal: :Carcinogenesis 1996
A S Giles A Seidel D H Phillips

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...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2013
Susan Ritger Crowell Arun K Sharma Shantu Amin Jolen J Soelberg Natalie C Sadler Aaron T Wright William M Baird David E Williams Richard A Corley

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...

Journal: :Arabian Journal of Geosciences 2023

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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