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| one publication added to basket [243620] |
Passive sampling of nonpolar contaminants at three deep-ocean sites
Booij, K.; van Bommel, R.; van Aken, H.M.; van Haren, H.; Brummer, G.J.A.; Ridderinkhof, H. (2014). Passive sampling of nonpolar contaminants at three deep-ocean sites. Environ. Pollut. 195: 101-108. dx.doi.org/10.1016/j.envpol.2014.08.013
In: Environmental Pollution. Elsevier: Barking. ISSN 0269-7491; e-ISSN 1873-6424, meer
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| Author keywords |
Passive sampling; Nonpolar contaminants; Deep ocean; Performance reference compounds; Semipermeable membrane devices |
| Auteurs | | Top |
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- van Haren, H., meer
- Brummer, G.J.A., meer
- Ridderinkhof, H., meer
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| Abstract |
Concentrations of polychlorinated biphenyls, polyaromatic hydrocarbons, hexachlorobenzene, and DDE were determined by passive sampling (semipermeable membrane devices) with exposure times of 1–1.5 years at 0.1–5 km depth in the Irminger Sea, the Canary Basin (both North Atlantic Ocean), and the Mozambique Channel (Indian Ocean). The dissipation of performance reference compounds revealed a pronounced effect of hydrostatic pressure on the sampler-water partition coefficients. Concentrations in the Irminger Sea were uniform over the entire water column (0.1–3 km). At the Canary Basin site, concentrations were 2–25 times lower near the bottom (5 km) than at 1.4 km. Concentrations in the Mozambique Channel (0.6–2.5 km) were lower than at the other two locations, and showed a near-bottom maximum. The data suggest that advection of surface waters down to a depth of about 1 km is an important mechanism of contaminant transport into the deep ocean. |
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