上海大金山岛典型大气污染特征及来源分析  

Pollution characteristics and source analysis of typical air pollutants in Dajinshan Island of Shanghai

作　　者：王鹤霖[1] 程金平[1] 韩德明[1] 陈筱佳 徐豪 周勇 WANG He-lin;CHENG J in-ping;HAN De-ruing;CHEN Xiao-jia;XU Hao;ZHOU Yong(School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, Chin)

机构地区：[1]上海交通大学环境科学与工程学院,上海200240

出　　处：《上海交通大学学报（农业科学版）》2018年第2期22-26,共5页Journal of Shanghai Jiaotong University(Agricultural Science)

基　　金：上海市大金山岛保护与开发利用海岛监视监测项目(ZX2015-017)

摘　　要：为了探究大金山岛典型大气污染物的特征及其来源,本文以气溶胶粒径谱仪、气体采样袋与测汞仪对大金山岛大气中的颗粒物PM2.5、PM10,挥发性有机物(VOCs),以及大气重金属汞进行监测、采集与分析。结果表明,颗粒物PM2.5和PM10浓度(μg/m^3)在空间上,依次表现为:小金山岛(45.76,60.97>金山码头(43.80,56.45)>大金山岛(37.92,53.63);大气总VOCs浓度(μg/m^3)在空间上,依次表现为:小金山岛(338.01)>大金山岛(318.72)>金山码头(303.93);大气重金属汞浓度(ng/m^3)在空间上,依次表现为:小金山岛(7.33)>大金山岛(6.02)>金山码头(4.65)。后向轨迹模型分析表明,到达大金山岛的气团主要来自西北方位的河南中西部及长三角西北部。Gas sampling bag,GC-MS,aerosol spectrometer and mercury analyzer were used to study the characteristics and sources of the typical air pollutants in Dajinshan,an uninhabited island in Shanghai.The results showed that the spatial distribution of PM2.5 and PM10 concentrations appeared as Xiaojinshan Island（43.80,56.45μg/m^3）〉Jinshan Wharf（43.80,56.45 μg/m^3） 〉Dajinshan Island（37.92,53.63 μg/m^3）.The spatial distribution of TVOC concentrations appeared as Xiaojinshan Island （338.01 μg/m^3） 〉Dajinshan Island（318.72μg/m^3）〉Jinshan Wharf（303.93 μg/m^3）.The spatial distribution of atmospheric mercury concentrations appeared as Xiaojinshan Island （7.33 ng/m^3） 〉Dajinshan Island （6.02 ng/m^3） 〉Jinshan Wharf（4.65 ng/m^3）.Backward trajectories in Dajinshan Island indicated that air masses mainly came from the middle and west part of Henan province and the northwest of Yangtze River Delta.

关 键 词：大金山岛 无居民海岛 大气污染 来源分析 

分 类 号：X513[环境科学与工程—环境工程]