Organic contaminants in Welsh soils: polynuclear aromatic hydrocarbons

1989 ◽  
Vol 23 (5) ◽  
pp. 540-550 ◽  
Author(s):  
Kevin C. Jones ◽  
Jennifer A. Stratford ◽  
Keith S. Waterhouse ◽  
Nils B. Vogt
Keyword(s):  
Aromatic Hydrocarbons ◽  
Organic Contaminants ◽  
Polynuclear Aromatic Hydrocarbons

Assessing the fate of polynuclear aromatic hydrocarbons from oily waste land spreading by modelling

1996 ◽  
Vol 23 (1) ◽  
pp. 211-217 ◽  
Author(s):  
Clément Drolet ◽  
Olivier Banton ◽  
Pierre Lafrance ◽  
Jean-Pierre Villeneuve
Keyword(s):  
Aromatic Hydrocarbons ◽  
Organic Contaminants ◽  
Root Zone ◽  
Organic Matter Content ◽  
Physicochemical Characteristics ◽  
Matter Content ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Zone Model ◽  
Petroleum Refineries ◽  
Oily Waste

The organic wastes produced by petroleum refineries are often treated by spreading them on land sites, allowing hydrocarbons to degrade naturally. In such conditions, mathematical models representing the transport of organics in the soil are useful for predicting the quantities of hydrocarbons, like polynuclear aromatic hydrocarbons (PAHs), that could reach the water table in the short and long term. The pesticide root zone model (PRZM) simulates the fate of pesticides in the soil. Because of the analogy between the agricultural use of pesticides and the land spreading of petroleum residues containing hydrocarbons, and the similar physicochemical characteristics of these two types of potential organic contaminants, this model was applied to a land-spreading site in southern Quebec. The simulation results indicate that the studied PAHs may not migrate to depths of more than 40 cm. The predicted concentrations may be several hundred times lower when the degradation rate doubles. Natural variations in the local hydrodynamic conditions caused by soil texture do not greatly affect the concentrations of a relatively mobile PAH in soil or in water. In contrast to the texture, the soil organic matter content greatly influences the distribution of PAHs between the liquid and solid phases and, consequently, their migration through the soil. Key words: PAH, phenanthrene, pyrene, refinery, land treatment, mobility, degradation, simulation, PRZM.

Multi-alkylated Polynuclear Aromatic Hydrocarbons of Tobacco Smoke: Separation and Identification

1978 ◽  
Vol 9 (4) ◽  
Author(s):  
M. E. Snook ◽  
R. F. Severson ◽  
R. F. Arrendale ◽  
H. C. Higman ◽  
O. T. Chortyk
Keyword(s):  
Liquid Chromatography ◽  
Cigarette Smoke ◽  
Aromatic Hydrocarbons ◽  
Ultra Violet ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Gel Chromatography ◽  
Cigarette Smoke Condensate ◽  
Gas And Liquid Chromatography ◽  
Silicic Acid Chromatography ◽  
Derivatives Of

AbstractThe methyl, multi-methyl, and ethyl derivatives of the polynuclear aromatic hydrocarbons (PAH) of cigarette smoke condensate (CSC) were isolated from the neutrals by silicic acid chromatography, solvent partitioning and gel chromatography. The procedure yielded a relatively pure PAH isolate amenable to further identifications. The multi-alkylated PAH were concentrated in the early gel fractions with parent and higher ring PAH found in subsequent gel fractions. It was shown that CSC is very rich in alkylated PAH, and their successful identification required extensive use of gas and liquid chromatography and ultra-violet and GC - mass spectrometric techniques. High-pressure liquid chromatography (HPLC) separated individual isomers of the alkylated PAH in complex GC peaks. PAH from indene to pentamethylchrysene were found. This report concludes our identification studies on the PAH of CSC and complements our two previous reports in this journal. Collectively, our studies have identified approximately 1000 PAH of cigarette smoke condensate and have led to the development of methods for the routine quantitation of PAH in smalI quantities of cigarette smoke condensate.

Spectrophotometry Measurement of Polynuclear Aromatic Hydrocarbons in Hamilton Harbour Sediments

1991 ◽  
Vol 26 (1) ◽  
pp. 1-16 ◽  
Author(s):  
T.P. Murphy ◽  
H. Brouwer ◽  
M.E. Fox ◽  
E. Nagy
Keyword(s):  
Aromatic Hydrocarbons ◽  
Total Concentration ◽  
Coal Tar ◽  
Sediment Cores ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Near Surface ◽  
Spectrometry Analysis ◽  
Hamilton Harbour

Abstract Eighty-one sediment cores were collected to determine the extent of coal tar contamination in a toxic area of Hamilton Harbour. Over 800 samples were analyzed by a UV spectrophotometric technique that was standardized with gas chromatography/mass spectrometry analysis. The coal tar distribution was variable. The highest concentrations were near the Stelco outfalls and the Hamilton-Wentworth combined sewer outfalls. The total concentration of the 16 polynuclear aromatic hydrocarbons (PAHs) in 48,300 m3 of near-surface sediments exceeded 200 µg/g.

Charge transfer energies of the complexes of (dibenzoylmethanato)boron difluoride with indeno-pyridines and polynuclear aromatic hydrocarbons

2013 ◽  
Vol 108 ◽  
pp. 181-185 ◽  
Author(s):  
Tandrima Chaudhuri ◽  
Sneha Salampuria ◽  
Pradip Kumar Tapaswi ◽  
Chhanda Mukhopadhyay ◽  
Subrata Chattopadhyay ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Aromatic Hydrocarbons ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Boron Difluoride

Extraction of low molecular weight polynuclear aromatic hydrocarbons from ashes of coal-operated power plants

1987 ◽  
Vol 59 (17) ◽  
pp. 2066-2069 ◽  
Author(s):  
Filippo. Mangani ◽  
Achille. Cappiello ◽  
Giancarlo. Crescentini ◽  
Fabrizio. Bruner ◽  
Loretta. Bonfanti
Keyword(s):  
Molecular Weight ◽  
Aromatic Hydrocarbons ◽  
Power Plants ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Low Molecular Weight

Application of SPME in the Analysis of Polynuclear Aromatic Hydrocarbons in Water by HPLC with DAD Detection

2001 ◽  
Vol 19 (1-4) ◽  
pp. 227-239 ◽  
Author(s):  
Vitor Vale Cardoso ◽  
Alexandre Rodrigues ◽  
Judite Correia ◽  
Maria João Benoliel
Keyword(s):  
Aromatic Hydrocarbons ◽  
Polynuclear Aromatic Hydrocarbons
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