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A survey of zinc, copper and cadmium concentrations in salt marsh plants along the Dutch coast
Otte, M.L.; Bestebroer, S.J.; van der Linden, J.M.; Rozema, J.; Broekman, R.A. (1991). A survey of zinc, copper and cadmium concentrations in salt marsh plants along the Dutch coast. Environ. Pollut. 72(3): 175-189. https://dx.doi.org/10.1016/0269-7491(91)90098-H
In: Environmental Pollution. Elsevier: Barking. ISSN 0269-7491; e-ISSN 1873-6424, meer
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| Auteurs | | Top |
- Otte, M.L.
- Bestebroer, S.J.
- van der Linden, J.M.
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- Rozema, J.
- Broekman, R.A.
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|
| Abstract |
In autumn 1986, plants and soil were collected from the lower and the higher salt marsh zones of salt marshes along the Dutch coast. The main purpose was to get an overview of Zn, Cu and Cd concentrations in six dominant species of salt marsh plants.The roots and shoots of the plants were analysed for Zn, Cu and Cd. The highest heavy metal concentrations were found in plants collected from salt marshes near harbour areas and/or that are known to receive contaminated fluvial sediment. Dicotyledonous plant species tended to have similar heavy metal concentrations in roots and shoots, whereas in monocotyledonous species the concentrations in the roots were two to three times higher than in the shoots. Differences in accumulation in the roots between elements and between plant species were found. Cd was accumulated more than Zn or Cu. Triglochin maritima shows a low Cd uptake by roots, whereas Spartina anglica and Scirpus maritimus tend to accumulate it.The fraction of soil particles smaller than 63 µm, loss on ignition and Zn, Cu and Cd concentrations were determined in soil samples. The highest Zn, Cu and Cd concentrations in the soil were found at salt marshes in the Western Scheldt area and were nine, five and 20 times higher than background levels, respectively. |
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