Abstract：
:The major organochlorine (OC) pollutants, i.e. pentachlorobenzene (PCBz), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs), polychlorobiphenyls (PCBs) and DDTs have been analyzed in soils and mosses from coastal areas of Victoria Land (70-80 degrees S, 160-170 degrees E). PCBs (23-34 ng g(-1) dry wt.) and PCBz (0.38-1.3 ng g(-1) dry wt.) were the dominant OCs in mosses and soils, respectively. In general, the concentrations of OC in soils, i.e. HCB (0.034-0.17 ng g(-1) dry wt.), PCBs (0.36-0.59 ng g(-1) dry wt.) and 4,4'-DDE (0.053-0.086 ng g(-1) dry wt.), range among the lowest reported in remote regions. These concentrations exhibited high correlation coefficients when represented vs. total organic carbon (TOC) which is consistent with the general correlation between OC and TOC in soils from remote areas recently observed (Meijer, S.N., Ockenden, W.A., Seetman, A., Breivik, K., Grimalt, J.O., Jones, K.C., 2003. Global distribution and budget of PCBs and HCB in background surface soils: implications for sources and environmental processes. Environ. Sci. Technol. 37, 667-672). Statistically significant dependences between reciprocal of temperature and log-transformed concentrations of HCB and 4,4'-DDE in mosses and alpha-HCH in soils have been found. These observations provide further data illustrating that temperature is a major factor determining the planetary scale distribution and accumulation of OCs giving additional ground to the general validity of the global distillation effect for description of planetary OC distribution.
journal_name
Chemospherejournal_title
Chemosphereauthors
Borghini F,Grimalt JO,Sanchez-Hernandez JC,Bargagli Rdoi
10.1016/j.chemosphere.2004.07.025subject
Has Abstractpub_date
2005-01-01 00:00:00pages
271-8issue
3eissn
0045-6535issn
1879-1298pii
S0045-6535(04)00612-5journal_volume
58pub_type
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