PCBs in air, soil and milk in industrialized and urban areas of KwaZulu-Natal, South Africa

被引：73
作者：
Batterman, S. [1 ]
Chernyak, S. [1 ]
Gouden, Y. [2 ]
Hayes, J. [1 ]
Robins, T. [1 ]
Chetty, S.
机构：
[1] Univ Michigan, Sch Publ Hlth, Ann Arbor, MI 48109 USA
[2] Univ KwaZulu Natal, Ctr Environm & Occupat Hlth, ZA-4013 Congella, Durban, South Africa
来源：
ENVIRONMENTAL POLLUTION | 2009年 / 157卷 / 02期
关键词：
Airborne contaminants; Africa; Organochlorine; PCBs; Transport; Vapor; Trajectory analysis; Soil; Milk; PERSISTENT ORGANIC POLLUTANTS; POLYCYCLIC AROMATIC-HYDROCARBONS; POLYCHLORINATED-BIPHENYLS PCBS; HISTORICAL EMISSION INVENTORY; AMBIENT AIR; CONGENERS; POLLUTION; NETWORK; DIOXINS; SAMPLES;
D O I：
10.1016/j.envpol.2008.08.015
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Information regarding polychlorinated biphenyls (PCBs) in environmental media in Africa is limited. This paper presents results of a monitoring program conducted in Kwazulu-Natal Province, South Africa designed to characterize levels, trends and sources of airborne PCBs. Particulate and vapor samples were sampled over the 2004-2005 period at three sites. The total PCB concentration averaged 128 +/- 47 pg m(-3), and levels were highest in winter. Tri- through hexa-congeners predominated, and the vapor fraction was predominant. Several tetra- through hexa-chlorinated congeners had levels comparable to those at urban sites in the northern hemisphere, but hepta- through deca-congeners resembled levels at background sites. PCB source areas, deduced using spatial and temporal patterns, compositional information and trajectory analyses, likely included local, regional and global sources. Soils at three rural sites showed high PCB concentrations, and milk from a local dairy showed PCB concentrations comparable to USA levels in year 2000. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：654 / 663
页数：10
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