Concentrations and deposition fluxes of polynuclear aromatic hydrocarbons and heavy metals in the dated sediments of a rural english lake

1993 ◽  
Vol 12 (9) ◽  
pp. 1567-1581 ◽  
Author(s):  
Gordon Sanders ◽  
Kevin C. Jones ◽  
John Hamilton-Taylor ◽  
Helmut Dorr
Keyword(s):  
Heavy Metals ◽  
Aromatic Hydrocarbons ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Deposition Fluxes

Corrigendum to: Wildland fire ash and particulate distribution in adjacent residential areas

2014 ◽  
Vol 23 (4) ◽  
pp. 601
Author(s):  
Richard L. Wade ◽  
Amir Jokar ◽  
Kristina Cydzik ◽  
Adam Dershowitz ◽  
Rod Bronstein
Keyword(s):  
Heavy Metals ◽  
Forest Management ◽  
Aromatic Hydrocarbons ◽  
Wildland Fire ◽  
Residential Buildings ◽  
Wood Ash ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Residential Areas ◽  
Fire Zone ◽  
Particulate Distribution

In recent decades, the frequency of wildland fire incidents near residential areas has decreased but the number of acres burned has increased, in large part due to changes in forest management methods and further human encroachment in forested regions. There is much debate about whether the wood ash generated by these wildfires can significantly affect residential buildings outside the fire zone perimeter. This study investigates the distribution of ash, soot and char that are generated from wildfires and migrate into adjacent residential regions. For this purpose, a wildland fire in Bastrop, Texas, was studied with samples collected from a variety of locations within the fire site and in adjacent areas. The collected samples were assayed for pH, asbestos, heavy metals and polynuclear aromatic hydrocarbons. The results of this investigation showed that the magnitude of the deposition on residential buildings near wildfires is dependent on a variety of variables, in particular the distance from the centre of the fire.

Wildland fire ash and particulate distribution in adjacent residential areas

2013 ◽  
Vol 22 (8) ◽  
pp. 1078 ◽  
Author(s):  
Richard L. Wade ◽  
Amir Jokar ◽  
Kristina Cydzik ◽  
Adam Dershowitz ◽  
Rod Bronstein
Keyword(s):  
Heavy Metals ◽  
Forest Management ◽  
Aromatic Hydrocarbons ◽  
Wildland Fire ◽  
Residential Buildings ◽  
Wood Ash ◽  
Polynuclear Aromatic Hydrocarbons ◽  
Residential Areas ◽  
Fire Zone ◽  
Particulate Distribution

In recent decades, the frequency of wildland fire incidents near residential areas has decreased but the number of acres burned has increased, in large part due to changes in forest management methods and further human encroachment in forested regions. There is much debate about whether the wood ash generated by these wildfires can significantly affect residential buildings outside the fire zone perimeter. This study investigates the distribution of ash, soot and char that are generated from wildfires and migrate into adjacent residential regions. For this purpose, a wildland fire in Bastrop, Texas, was studied with samples collected from a variety of locations within the fire site and in adjacent areas. The collected samples were assayed for pH, asbestos, heavy metals and polynuclear aromatic hydrocarbons. The results of this investigation showed that the magnitude of the deposition on residential buildings near wildfires is dependent on a variety of variables, in particular the distance from the centre of the fire.

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
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