Organochlorine pesticides air-water exchange and bioconcentration in krill in the Ross Sea

Mean hexachlorobenzene (HCB) and hexachlorocyclohexane (HCH) concentrations, measured in seawater and air samples, confirmed the decline in levels of these compounds in Antarctic air and water. However, low alpha/gamma-HCH ratios in air at the beginning of the sampling period suggest a predominance...

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Bibliographic Details
Published in:Environmental Pollution
Main Authors: CINCINELLI, A., MARTELLINI, T., DEL BUBBA, M., LEPRI, L., CORSOLINI, S., BORGHESI, N., KING, M. D., DICKHUT, R. M.
Other Authors: Cincinelli, A., Martellini, T., Lepri, L., Corsolini, S., Borghesi, N., King, M. D., Dickhut, R. M.
Format: Article in Journal/Newspaper
Language:English
Published: 2009
Subjects:
Antarctica
Hexachlorocyclohexane
Hexachlorobenzene
Fugacity
Bioconcentration
Antarctic
The Antarctic
Austral
Ross Sea
Antarc*
Online Access:http://hdl.handle.net/11365/10740
https://doi.org/10.1016/j.envpol.2009.02.010
Description
Summary:Mean hexachlorobenzene (HCB) and hexachlorocyclohexane (HCH) concentrations, measured in seawater and air samples, confirmed the decline in levels of these compounds in Antarctic air and water. However, low alpha/gamma-HCH ratios in air at the beginning of the sampling period suggest a predominance of fresh lindane entering the Antarctic atmosphere during the Austral spring probably due to current use in the Southern Hemisphere. Water-air fugacity ratios demonstrate the potential for HCH gas deposition to coastal Antarctic seas, while the water-air fugacity ratios for HCB imply that volatilization does not account for the observed decrease of HCB in surface seawater. HCH concentrations found in krill samples were correlated with seawater concentrations indicative of bioconcentration of HCHs from seawater.

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