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太原市工、商业区PM10中PAHs碳同位素组成及来源

白慧玲 彭 林 刘效峰 牟 玲 宋翀芳

白慧玲, 彭 林, 刘效峰, 牟 玲, 宋翀芳. 太原市工、商业区PM10中PAHs碳同位素组成及来源[J]. 环境科学研究, 2013, 26(12): 1276-1282.
引用本文: 白慧玲, 彭 林, 刘效峰, 牟 玲, 宋翀芳. 太原市工、商业区PM10中PAHs碳同位素组成及来源[J]. 环境科学研究, 2013, 26(12): 1276-1282.
BAI Hui-ling, PENG Lin, LIU Xiao-feng, MU Ling, SONG Chong-fang. Carbon Isotope Compositions and Source Apportionment of PAHs Associated with PM10 of Industrial and Commercial Districts in Taiyuan City[J]. Research of Environmental Sciences, 2013, 26(12): 1276-1282.
Citation: BAI Hui-ling, PENG Lin, LIU Xiao-feng, MU Ling, SONG Chong-fang. Carbon Isotope Compositions and Source Apportionment of PAHs Associated with PM10 of Industrial and Commercial Districts in Taiyuan City[J]. Research of Environmental Sciences, 2013, 26(12): 1276-1282.

太原市工、商业区PM10中PAHs碳同位素组成及来源

基金项目: 国家自然科学基金项目(41173002);国家青年科学基金项目(51108295)

Carbon Isotope Compositions and Source Apportionment of PAHs Associated with PM10 of Industrial and Commercial Districts in Taiyuan City

  • 摘要: 利用中流量大气综合采样仪采集太原市工业区和商业区PM10样品,使用GC/IRMS技术分析了PAHs的δ13C值(碳同位素组成),并根据碳同位素质量平衡计算了煤烟尘和机动车尾气对2类功能区的贡献率. 结果表明:工业区PM10中PAHs的δ13C值在-26.0‰~-24.5‰之间,随环数增加呈贫13C趋势,与煤烟尘δ13C值的变化趋势一致,表明煤烟尘是工业区的一个主要污染源;商业区PAHs的δ13C值在-26.6‰~-26.2‰之间,较工业区显著贫13C,商业区与工业区的污染源有明显差异;除机动车尾气和煤烟尘外,工业区和商业区还有其他污染源输入,其中工业区有生物质燃烧排放输入,商业区有机动车曲轴箱润滑油残渣输入;煤烟尘和生物质燃烧对工业区的贡献率分别为59.3%~70.8%和29.2%~40.7%,表明工业区煤烟污染严重;机动车对商业区PAHs的贡献率在86.1%~95.8%之间,是商业区PM10中PAHs的主要排放源,其中润滑油残渣的贡献率(在40.9%~85.3%之间)最大,机动车尾气的贡献率在8.3%~54.9%范围内,而煤烟尘的贡献率(在4.2%~13.9%之间)最小.

     

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出版历程
  • 收稿日期:  2013-05-19
  • 修回日期:  2013-08-26
  • 刊出日期:  2013-12-25

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