کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6317134 | 1619190 | 2013 | 6 صفحه PDF | دانلود رایگان |
- First study to measure PCBs in surface soil sampled throughout Mongolia.
- The PCB patterns in polluted soil were similar to those in Sovol or Aroclor 1254.
- Significant differences in PCB means in soil in different natural zones were found.
Polychlorinated biphenyls (PCBs) were measured in soil in some industrial towns (Ulaanbaatar, Suhbaatar, Erdenet, Darhan, Tsetserleg, Hovd, Ulaangom, Altay, Bayanhongor, Arvayheer, Saynshand, Choybalsan) and in background and rural areas of Mongolia. The average sum of all investigated PCB congeners in soil of Mongolia comes to 7.4Â ng/g dry weight (DW) and varies from 0.53Â ng/g DW till 114Â ng/g DW. PCB levels in soil from towns are significantly higher than those in soil from background and rural areas. The PCB homological composition in soil sampled in highly-PCB-polluted sites is similar to the PCB homological pattern in Sovol and Aroclor 1254. Significant correlation between soil organic carbon and low chlorinated PCB both for towns and background sites was found. Significant differences in PCB means in soil in different natural zones were found.
Journal: Environmental Pollution - Volume 182, November 2013, Pages 424-429