城市工业区大气颗粒物中多环芳烃的含量及来源分析  

Contents and derivation of PAHs from atmospheric particles in a manufacturing district in Xi'an

作　　者：吴蔓莉[1] 史新斌[1] 杨柳青[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《西安建筑科技大学学报（自然科学版）》2007年第2期259-262,共4页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：陕西省教育厅项目(04JK157);校青年科技基金(AJ03040)

摘　　要：采用索氏提取器提取大气颗粒样品中的多环芳烃,并用色谱/质谱联用技术（GC/MS）测定了西安市某工业区大气中多环芳烃（PAHs）的含量,并以西安市某生活区作为对照区分析了该工业区PAHs的主要来源,测得工业区采样点大气颗粒物中8种PAHs浓度范围为86.52-431.05 ng/m^3.生活区共检出6种PAHs,其浓度范围为47.60-149.03 ng/m^3,其种类和数量小于工业区中测得的PAHs.研究结果表明,工业区内PAHs污染十分严重,空气质量较差.通过对工业区内采样点的情况分析可知,工业区空气中PAHs主要来自焦化厂.In this article, PAHs on the atmospheric particles in a manufacturing district in Xi＇ an are determined by Soxhlet＇s extraction and GC/MS. Eight PAHs compounds were detected. The main derivation in the manufacturing district was analyzed by contrasting it with that in a habitation district. The results indicated that the concentrations of PAHs in the manufacturing district were 86.52-431.05ng/m^3 , more than the concentrations of PAHs in the air of the habitation district in which case the contents of six PAHs reached 47.60-149.03ng/m^3. The result indicated that PAHs pollution in the manufacturing district was serious. The main source of PAHs in the manufacturing district was derived from coke plant.

关 键 词：多环芳烃 索氏提取 大气颗粒物 GC/MS 

分 类 号：X131.1[环境科学与工程—环境科学]