نتایج جستجو برای: fluoranthene to fluoranthene plus pyrene flfl py
تعداد نتایج: 10643052 فیلتر نتایج به سال:
Multivariate statistical methods such as Cluster Analysis (CA) and Principal Component Analysis (PCA) were used for the study of distribution and sources of 16 polycyclic aromatic hydrocarbons (PAHs) in topsoils from seventeen locations in SE Romania, including industrial, agricultural and natural soils. The investigated dataset consists of concentrations of individual PAHs listed by the US Env...
Polycyclic aromatic hydrocarbons (PAHs), products from the incomplete combustion of crude oil, are pollutants present in nature. Ring hydroxylating dioxygenase enzymes able to catalyze polycyclic biodegradation process with a high degree stereo-, regio-, and enantiospecificity. In this work, we first approximation binding modes 9 PAHs aromaticity catalytic sites biphenyl or naphthalene dioxygen...
The current study was conducted to evaluate the effects of three generation sources smoke (poplar, haloxylon, and white paper), smoking duration (2 4 h) meat contents (55 80%) on Polycyclic Aromatic Hydrocarbons (PAHs) levels sausages. results showed that there are a positive correlation between lignin content PAHs level smokes smoked total in both sausages increased significantly as from 2 h. ...
We collected surface sediment samples from 174 locations in India, Indonesia, Malaysia, Thailand, Vietnam, Cambodia, Laos, and the Philippines and analyzed them for polycyclic aromatic hydrocarbons (PAHs) and hopanes. PAHs were widely distributed in the sediments, with comparatively higher concentrations in urban areas (Sigma PAHs: approximately 1000 to approximately 100,000 ng/g-dry) than in r...
Numerous polycyclic aromatic hydrocarbons (PAHs) are carcinogenic, making their presence in foods and the environment a health concern. This study assessed the contamination and or/ formation of PAHs in cocoa butter as affected by their cocoa bean drying methods. Three major drying methods were evaluated, including full sundrying, full artificial drying and the drying combination of sundrying f...
Despite the considerable knowledge of bacterial high-molecular-weight (HMW) polycyclic aromatic hydrocarbon (PAH) metabolism, the key enzyme(s) and its pleiotropic and epistatic behavior(s) responsible for low-molecular-weight (LMW) PAHs in HMW PAH-metabolic networks remain poorly understood. In this study, a phenotype-based strategy, coupled with a spray plate method, selected a Mycobacterium ...
PM10 samples were collected at six sampling sites in city center of Tianjin from April 2008 to January 2009. The concentrations of 17 selected polycyclic aromatic hydrocarbons (PAHs) in PM10 were quantified. Spatial and seasonal variations of PAHs were characterized. The dominant PAHs in PM10 samples were fluoranthene, pyrene, benz[a] anthracene, phenanthrene, chrysene, benzo[b]fluoranthene, an...
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