POPs in key species of Marine Antarctic ecosystemsEntry ID: ECA028
Abstract: These data set regards the average p,p'-DDE and HCB concentration (0.86±0.98 and 0.37±0.17 ng g–1 wet wt. respectively) measured in krill samples collected from the Ross Sea (71°20’S– 72° 331’S/170° 22’E–178° 04’E) in January 2000. Average PCB concentrations in these samples were much higher (167±85 ng g–1 wet wt.), and congener- specific PCB profiles showed a prevalence of low-chlorinated isomers ... (tetra-PCBs accounted for most of the 48 residue). This pattern differed from that usually detected in organisms from low and mid latitudes, and it was likely due to global fractionation at high latitudes. Isomer patterns in organisms from the Ross Sea were similar to those of Kanechlor, a technical mixture mostly used in Japan and other eastern Asian countries, roughly located at the longitude of the Ross Sea. On a lipid weight basis, concentrations of total polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (DFs) in the same krill samples were 27 pg g–1, and those of non- and mono-ortho-substituted polychlorinated biphenyls (dioxin-like PCBs) were 0.9 ng g–1.
About the presence of Organochlorine Pesticides in krill sampled at Ross Sea in Terra Nova Bay, during 2001/02. The concentrations of HCB, HCHs and DDTs found were 0.23 ± 0.01, 0.28 ± 0.04 and 0.18 ± 0.03 respectively while chlordanes (CHLs) were below the detection limit (MDL< 0.02 ng/g wet wt). Mean PBDE concentrations were 0.20 ng/g in krill whole body and 5.60 ng/g on a lipid basis. PCB levels were higher with one order of magnitude than PBDEs levels.
Start Date: 2000-01-01Stop Date: 2000-01-30
Start Date: 2001-01-01Stop Date: 2002-12-30
Data Set Progress
Corsolini, S., Covaci, A., Ademollo, N., Focardi, S., and Schepens, P., 2006: Occurrence of organochlorine pesticides (OCPs) and their enantiomeric signatures, and concentrations of polybrominated diphenyl ethers (PBDEs) in the Adelie penguin food web, Antarcticae. Environmental Pollution, 140, 371-382.
Corsolini, S., Kannan, K., Imagawa, T., Focardi, S., and Giesy, J. P., 2002: Polychloronaphthalenes and other dioxin-like compounds in Arctic and Antarctic marine food webs. Environmental Science & Technology, 36, 3490-3496.
Corsolini, S., Romeo, T., Ademollo, N., Greco, S., Focardi, S., 2002. POPs in key species of marine Antarctic ecosystem. Microchemical Journal, 73, 187-193.
Kumar, K., Senthil, Kannan, K., Corsolini, S., Larsson, P., Järnmark, C., Södergren, A., 1992. PCBs and chlorinated pesticides in the atmosphere and aquatic organisms of Ross Island, Antarctica. Mar Pollut Bull. 25, 281–287.
Creation and Review Dates
DIF Creation Date: 2010-06-14
Last DIF Revision Date: 2010-06-22