Emission Factors of Polycyclic and Nitro-polycyclic Aromatic Hydrocarbons from Residential Combustion of Coal and Crop Residue Pellets PDF Download
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Languages : en
Pages :
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Author:
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Languages : en
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Author: Guofeng Shen
Publisher: Springer
ISBN: 364239762X
Category : Science
Languages : en
Pages : 221
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Book Description
Emission inventory is basic for the understanding of environmental behaviors and potential effects of compounds, however, current inventories are often associated with relatively high uncertainties. One important reason is the lack of emission factors (EFs), especially for the residential solid fuel combustion in developing countries. In the present study, emission factors of a group of pollutants including particulate matter, organic carbon, elemental carbon (sometimes known as black carbon) and polycyclic aromatic hydrocarbons were measured for a variety of residential solid fuels including coal, crop straw, wood, and biomass pellets in rural China. The study provided a large number of emission factors that can be further used in emission estimation. Composition profiles and isomer ratios were investigated and compared so as to be used in source apportionment. In addition, the present study identified and quantified the influence of factors like fuel moisture, volatile matter on emission performance. The publication of the study will be of interest and helpful to the readers in the field of air pollution, human health, fuel saving and energy consumption etc. Guofeng Shen works at the Institute of Atmospheric Sciences, Jiangsu Academy of Environmental Sciences, China.
Author: Guofeng Shen
Publisher:
ISBN: 9783642397639
Category :
Languages : en
Pages : 228
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Author:
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ISBN:
Category : Polycyclic aromatic hydrocarbons
Languages : en
Pages : 500
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Publisher: National Academies Press
ISBN:
Category : Air
Languages : en
Pages : 482
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Author:
Publisher: DIANE Publishing
ISBN: 1428903348
Category : Polycyclic aromatic hydrocarbons
Languages : en
Pages : 678
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Author: Martin G. Rosen
Publisher:
ISBN:
Category : Aromatic compounds
Languages : en
Pages : 18
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Author: Robert Cebula
Publisher:
ISBN:
Category : Flue gases
Languages : en
Pages : 144
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Book Description
Stack emissions from five sources (one pulverized coal combustion operation, three sewage sludge incineration operations and one gray tin refractory operation) were sampled by use of U.S. EPA Modified Method 5 isokinetic sampling unit for vapor and particulate effluent. The sampling unit provided XAD-2 resin samples, polytetrafluoroethylene and glass fiber filters and impinger washings of dichloromethane. The resins were soxhlet extracted using dichloromethane (DCM) and the filters were soxhlet extracted using DCM followed by acetone. Fractionation of extracts was accomplished by thin layer chromatography. The resulting fractions were analyzed for polycyclic aromatic hydrocarbons (PAH), nitro-PAH and quinone-PAH by high-performance liquid chromatography (HPLC). Extractable organic matter (EOM) was also determined with a [sic] electrobalance. XAD samples from a gray tin refractory, and three sewage sludge incinerators higher molecular weight PAH. The volatility of the low MW PAH was responsible for the high concentration found in the resins. The lower boiling point of the higher MW PAH and the stronger association of high MW PAH with fly ash are reasons for their presence in the filter samples. No nitro-PAH or quinone-PAH compounds were detected in the emission samples. Of the four XAD resins analyzed for B(a)P by fluorescence scanning three samples showed very similar results. Concentrations from the three sources resulted from two different operations. Comparison of the HPLC results for B(a)P and fluorescence scanning of selected XAD resins have not resulted in good agreement. Phthalates tend to interfere with the HPLC chromatogram in the area where B(a)P elutes. This most likely is the reason for the disagreement. Tetrachloro-p-dibenzodioxin was observed in the resin and washings of the Parsippany Troy Hills source (sewer sludge incinerator). Heptachloro-p-dibenzodioxin was observed in the filter samples of the PSE & G source (coal combustion). The higher chlorinated species seem to form a stronger association with the particulate and a weaker association with the lower chlorinated species.
Author: G. Grimmer
Publisher: CRC Press
ISBN: 1351080202
Category : Science
Languages : en
Pages : 272
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Book Description
The present survey comprises today‘s knowledge of environmental pollution in particular of the atmosphere by PAH and of the biological effects of this class of substance, putting special emphasis on their carcinogenic activity. The research data and conclusions derived therefrom are meant to assist the government of the Federal Republic of Germany in determining an air quality standard.
Author:
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ISBN:
Category : Pollutants
Languages : en
Pages : 308
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