The results of model experiments designed to study the distribution patterns for polycyclic aromatic hydrocarbons (PAHs) various structures and solubility (naphthalene, anthracene, pyrene, benz(a)pyrene) in water system Lake Baikal (endemic species: freshwater sponge Lubomirskia baicalensis haric algae Nitella sp.) are presented. ability hydrobionts remove PAHs from aqueous solutions at highest...

Finding an environment-friendly and affordable method to remove contaminated soils from Polycyclic Aromatic Hydrocarbons (PAHs) has now become an attractive field for researchers, with super-critical fluid extraction being an innovative process in the field of contaminated soil treatment. Extraction with super-critical fluid is a simple and rapid extraction process that uses super-critical flui...

concentration levels of 16 polycyclic aromatic hydrocarbons (pahs) consisting of naphthalene, acenaphthylene, acenaphthene, fluorine, phenantherene, anthracene, fluor?anthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)p?yrene, dibenzo(a,h)ant?hracene, indeno(1,2,3-cd) pyrene and benzo(g,h,i)perylene were measured in water and sediment samples coll...

Petroleum exploitation in oilfields, especially drilling, generates an oily sludge mixed with hydrocarbons and mineral solids. This oily sludge is sometimes treated by bioremediation and phytoremediation. This investigation established that landfarmed oil sludge provided adequate soil conditions to grow jack beans (Canavalia ensiformis) that in turn rhizoand phytoremediated residual aliphatic a...

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. ...

Quinones and other oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs) are toxic and/or genotoxic compounds observed to be cocontaminants at PAH-contaminated sites, but their formation and fate in contaminated environmental systems have not been well studied. Anthracene-9,10-dione (anthraquinone) has been found in most PAH-contaminated soils and sediments that have been analyzed for oxy-PAHs...

Dispersive liquid liquid microextraction (DLLME) combined with gas chromatography–mass spectrometry (GC–MS) was used for the extraction and determination of 13 polycyclic aromatic hydrocarbons (PAHs) in mineral water samples. In this procedure, the suitable combination of extraction solvent (500 µL chloroform) and disperser solvent (1000 µL acetone) were quickly injected into the water sample (...

Chemical identification and toxicity Polycyclic aromatic hydrocarbons (PAHs) are composed of two or more fused rings made up of carbon and hydrogen atoms (see IPCS 1998 in supporting documents). They have at least one aromatic ring and can contain 5-membered, non-aromatic rings. The PAH chemical class includes unsubstituted and alkylated compounds and belongs to a broader polycyclic aromatic co...

The concentrations of smoke, polycyclic aromatic hydrocarbons (PAHs), and some gaseous air pollutants have been measured in two London Transport diesel bus garages and compared with observations made in the same garages over 20 years earlier. The main feature of the results was a large reduction in the background concentrations of smoke and polycyclic aromatic hydrocarbons from sources such as ...

A new electron capture detector (ECD) for the Agilent 6890 Series gas chromatograph (GC) allows very sensitive detection of nitroaromatic compounds at low picogram levels with a linear response over three orders of magnitude. Analysis of Nitroaromatics and Nitro-Polycyclic Aromatic Hydrocarbons by Capillary Gas Chromatography with the Agilent 6890 Micro-ECD This application note describes the p...