Home
Resources
Publications
Polychlorinated Biphenyls in the Atmosphere of an Urban City: Levels, Distribution, and Emissions

Polychlorinated Biphenyls in the Atmosphere of an Urban City: Levels, Distribution, and Emissions

Laiguo Chen, Xiaochun Peng, Yumei Huang, Zhencheng Xu, Bixian Mai, Guoying Sheng, Jiamo Fu, Xinhua Wang

Arch Environ Contam Toxicol. 2009 Oct;57(3):437-46.

PMID: 19225710

Abstract:

Polychlorinated biphenyl (PCB) concentrations, profiles, and possible sources were determined in the atmosphere of Guangzhou, the largest city in south China. summation operator PCB concentrations ranged from 160 to 2720 pg/m(3), which is comparable with values found by similar studies in North America, Europe, and Asia. The highest PCB concentrations were found in the old industrial district, suggesting it to be the principal emission source. The most important PCB homologue group was tetra-PCB, followed by tri- and penta-PCB. The PCBs' homologue composition differs from that found in Chinese transformer oils: Chinese PCB products (no. 1 PCB and no. 2 PCB), Aroclor1242, and Aroclor1254. However, it is similar in composition to that found in sediments and soils subjected to arbitrary disposal of used electronic appliances in this region. Our results suggest that volatilization from PCB-contaminated soils in the old urban center may be the major source of PCBs in the atmosphere of Guangzhou. Additional studies will be required to characterize the geochemical cycles of PCBs from the contaminated environmental "hot spots" during the typical subtropical climate conditions in the study regions.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP2051618	PCB No 2		2051-61-8	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: