首页 | 本学科首页   官方微博 | 高级检索  
     

上海市街道尘埃中碳组分污染特征
引用本文:王冠,马丽娟,王阳阳,方爱冬. 上海市街道尘埃中碳组分污染特征[J]. 中国环境科学, 2019, 39(4): 1405-1411
作者姓名:王冠  马丽娟  王阳阳  方爱冬
作者单位:上海理工大学环境与建筑学院, 上海 200093
基金项目:国家自然科学基金资助项目(41001331,41874077);上海市自然科学基金资助项目(15ZR1428700)
摘    要:通过测定上海市街道尘埃碳组分含量,探讨有机碳(OC)和元素碳(EC)的相关性,并使用特征比值法讨论街道尘埃的主要污染来源;同时,对比分析了街道尘埃磁学参数与碳组分含量的关系.结果表明,OC、EC具有较好的相关性,相关系数为0.84,表明颗粒物存在相同的污染源;OC/EC为1.82,表明上海市街道尘埃存在二次污染,结合SEM形貌分析判别上海市颗粒物污染的主要来源;同时碳组分与磁学参数存在一定的相关关系,磁学参数(χLF、SIRM、χARM)在一定程度上可以指示上海市街道尘埃的碳组分含量及其二次污染水平.

关 键 词:街道尘埃  碳组分  磁学  来源  上海市  
收稿时间:2018-09-27

Pollution characteristics of carbon components in street dust in Shanghai
WANG Guan,MA Li-juan,WANG Yang-yang,FANG Ai-dong. Pollution characteristics of carbon components in street dust in Shanghai[J]. China Environmental Science, 2019, 39(4): 1405-1411
Authors:WANG Guan  MA Li-juan  WANG Yang-yang  FANG Ai-dong
Affiliation:School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
Abstract:By detecting the carbon content of street dust in Shanghai, the correlation between organic carbon (OC) and elemental carbon (EC) was discussed. The feature ratio method was used to discuss the main sources of street dust. At the same time, the relationship between the magnetic parameters of street dust and the carbon content was analyzed. The results showed that OC and EC had a good correlation with a correlation coefficient of 0.84, indicating that the particulate matter has the same pollution source to some extent; the ratio of OC/EC was 1.82, which indicates that there was secondary pollution in street dust in Shanghai. Combined with SEM morphology analysis to identify the main sources of particulate pollution in Shanghai; the results showed that there was a certain correlation between carbon composition and magnetic parameters, and the magnetic parameters(χLF、SIRM、χARM) can indicate the carbon content and secondary pollution level of street dust in Shanghai to some extent.
Keywords:street dust  carbon composition  magnetism  source  Shanghai  
本文献已被 CNKI 等数据库收录!
点击此处可从《中国环境科学》浏览原始摘要信息
点击此处可从《中国环境科学》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号