Journal
ENVIRONMENTAL POLLUTION
Volume 161, Issue -, Pages 101-106Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2011.09.036
Keywords
PCBs; PBDEs; Total organic carbon; Mountain cold-trapping effect
Categories
Funding
- National Basic Research Program of China [2009CB421605]
- Natural Science Foundation of China [21177149, 20890111, 41101476]
- China Postdoctoral Science Foundation [20090460545, 201003167]
Ask authors/readers for more resources
Surface soils were collected in Balang Mountain to explore the environmental process of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) during air transport. The average concentrations of Sigma(25)PCBs and Sigma 13PBDEs in soils were 163 pg/g and 26 pg/g, respectively. The significant correlations between the concentrations of pollutants and total organic carbon (TOC) indicated the importance of TOC in accumulation potential of POPs. The slopes from fitted curves of PCBs were highly related with logK(oa), demonstrating that TOC dominates the soil-air exchange of PCBs. The TOC-normalized concentrations of contaminants in samples from below-treeline were higher than those from alpine meadow, probably due to the forest filter effect. The increasing trends of the concentrations with altitude from the alpine meadow samples, could be attributed to the mountain cold-trapping effect. And the weak cold-trapping effect of POPs might be due to the less precipitation in 2008 when comparing with those in 2006. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available