Emission Estimates of Particulate PAHs from Biomass Fuels Used in Delhi, India
Emission Estimates of Particulate PAHs from Biomass Fuels Used in Delhi, India
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DOI：
10.1080/10807039.2012.688714
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发表时间：
2012-06
期刊：
影响因子：
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通讯作者：
R. Gadi;D. P. Singh;T. Saud;T. Mandal;M. Saxena
中科院分区：
文献类型：
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作者：
R. Gadi;D. P. Singh;T. Saud;T. Mandal;M. Saxena
摘要颗粒相多环芳烃（PAHs）的排放因子进行了评估，为各种生物质燃料（薪材，粪饼，农业残留物），通常在德里使用的能源。总颗粒物中多环芳烃的排放因子为35.9 ± 1.9 ~ 59.7 ± 4.4mg/kg。较高水平的总多环芳烃和颗粒物（PM）被发现从粪饼相比，薪材和农业残留物。粪饼、薪柴和农业废弃物的PM排放因子分别为25 ± 8、15 ± 3.2和12.1 ± 9.4 g/kg。随着颗粒物排放率的增加和燃烧效率的降低，多环芳烃的总排放量增加。荧蒽、芘、苯并[a]蒽、苯并[B]荧蒽和苯并[a]芘构成了所有生物质燃料多环芳烃排放的主要部分。德里使用的生物质燃料的多环芳烃和颗粒物的年度预算估计（每年的总排放量）分别为30.5 ± 2.3毫克（兆克）和11.6 ± 4.4千兆克（千兆克）。还试图通过使用本研究中获得的排放因子来评估印度使用生物质燃料作为能源排放的多环芳烃和PM的初步预算估计。
ABSTRACT The emission factors for particulate-phase polycyclic aromatic hydrocarbons (PAHs) were evaluated for various biomass fuels (fuelwood, dung cakes, and agricultural residue) that are being commonly used in Delhi as a source of energy. Emission factors of total particulate PAHs varied from 35.9 ± 1.9 to 59.7 ± 4.4 mg/kg. Higher levels of total PAHs and particulate matter (PM) were found from dung cakes as compared to fuelwood and agricultural residue. The emission factors for PM from dung cake, fuelwood, and agricultural residue are 25 ± 8, 15 ± 3.2, and 12.1 ± 9.4 g/kg, respectively. The total PAH emissions showed an increase with high particulate matter emission rates and lower combustion efficiency. Fluoranthene, pyrene, benzo[a]anthracene, chrysene, benzo[b]fluoranthene, and benzo[a]pyrene constituted the major fraction of PAH emissions from all biomass fuels. The annual budget estimates (total emissions per year) for PAHs and PM from biomass fuels used in Delhi are 30.5 ± 2.3 Mg (Megagrams) and 11.6 ± 4.4 Gg (Gigagrams), respectively. An attempt has also been made to evaluate the preliminary budget estimates of PAHs and PM emitted from the use of biomass fuels as a source of energy in India by using the emission factors obtained in the present study.