中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 北京地区表土中多环芳烃的源解析 农业环境科学学报 2008,27 (02) 151-156
Position: Home > Articles > Source Apportionment of Polycyclic Aromatic Hydrocarbons in Surface Soil of Beijing, China Journal of Agro-Environment Science 2008,27 (02) 151-156

北京地区表土中多环芳烃的源解析

作  者：
沈亚婷;王开颜;张树才;叶友斌;沈琼;胡俊栋;王学军
单  位：
北京大学环境学院地表过程分析与模拟教育部重点实验室
关键词：
多环芳烃;表土;因子分析;多元线性回归;北京
摘  要：
采用网格法均匀布点采集了北京地区161个表土样品,测定了其中15种多环芳烃(PAHs)的浓度。利用因子分析-多元线性回归法解析出北京地区表土中PAHs的3种来源,并定量计算了3种源的贡献量。结果表明,北京地区表土中PAHs的特征污染源为煤炭燃烧/交通排放、焦炉及石油,3种源基于多元线性回归法的贡献率分别为48%、28%和24%,对15种PAHs总量的贡献量均值分别为16.36、4.63和3.70μg·kg-1。燃煤/交通源表现为市中心源强高于郊区,焦炉源在大部分区县中存在单一高值点,石油源在市中心及五环外环带呈点状分布。据此推断,北京地区PAHs的源贡献与北京地区能源结构和功能区划有关,能源结构和功能区划的改善是控制北京地区表土中多环芳烃的有效途径。
译  名：
Source Apportionment of Polycyclic Aromatic Hydrocarbons in Surface Soil of Beijing, China
作  者：
SHEN Ya-ting, WANG Kai-yan, ZHANG Shu-cai, YE You-bin, SHEN Qiong, HU Jun-dong, WANG Xue-jun (MOE Laboratory of Earth Surface Processes, College of Environmental Sciences, Peking University, Beijing 100871, China)
关键词：
PAHs; surface soil; factor analysis; multiple linear regression; Beijing
摘  要：
Factor analysis and multiple linear regression were applied to apportion sources of polycyclic aromatic hydrocarbons(PAHs) in surface soil of Beijing, China, based on the measured PAHs concentrations of 161 surface soil samples. Three factors were identified representing coal combustion /vehicle exhaust, coking and petroleum, respectively. The contributions based on multiple linear regression of major sources were quantified as 48% from coal/vehicle, 28% from coking, and 24% from petroleum, the mean contributions of the three sources were 16.36 μg·kg-1, 4.63 μg·kg-1 and 3.70 μg·kg-1, respectively, which were compatible with PAHs emissions estimated based on coal consumption. High contributions of coal/vehicle source were found in the center of the city and petroleum source had a high contribution in and around the center of the city. The contribution of coking industry had a high point in almost every district, while punctual distribution was found in the center and out of the fifth round road for petrol source. It is concluded that PAHs in the surface soil have close relations with the structure of fuel consumption and the distribution of function zones, which means the improvement of the energy structure and the function zoning are the keys to reduce the PAHs pollution in surface soil of Beijing area.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46