Sources of Cd, Cu, Ni and Zn in Portuguese coastal waters

作者: Marie-Hélène Cotté-Krief , Cécile Guieu , Alain J Thomas , Jean-Marie Martin

DOI: 10.1016/S0304-4203(00)00049-9

关键词:

摘要: Abstract In order to identify the major sources of trace metals (TM) in Portuguese coastal waters, 58 surface water samples were collected during September 1988. The area sampled extended from Tagus Estuary (down a salinity 25) cape Ste Marie on southern coast Portugal. Dissolved metal concentrations fully marine waters ranged 30 250 pM for Cd, 0.7–15 nM Cu, 0.9–20 Zn and 1.8–4.5 Ni. Within (salinity 25), increased 3400 26 14 Ni 230 Zn. large-scale distribution these is dominated by two strong continental sources, both probably linked exploitation pyrite ores. Estuary, TM enrichments can be mostly attributed roasting plant located shore front Lisbon. Concerning south shelf several hypotheses are proposed explain their elevated concentrations. We particularly discussed likely influence Tinto/Odiel rivers 100 km eastward, an well known Gulf Cadiz. These extremely metal-rich because acid mine tailings originating catchment. Between regions, upwelling relatively metal-poor largely contributes dilution inputs. Indeed, exchanges involve fluxes 500 times higher than River flow, renew that thus cleaned terrestrial contamination. Contrary many other systems non-contaminated areas, does not act as source trace-metal enrichment margin waters.

参考文章(49)
Jean-Marie Martin, Michael Whitfield, The Significance of the River Input of Chemical Elements to the Ocean Springer, Boston, MA. pp. 265- 296 ,(1983) , 10.1007/978-1-4757-6864-0_16
Portugal. Direcção dos Trabalhos Geológicos, Paul Choffat, J. F. N. Delgado, Carta geológica de Portugal Direcção dos trabalhos geologicos. ,(1899)
F. Fraga, Upwelling off the Galician Coast, Northwest Spain Coastal Upwelling. pp. 176- 182 ,(2013) , 10.1029/CO001P0176
Armando F. G. Fiúza, Upwelling Patterns off Portugal Coastal Upwelling Its Sediment Record. pp. 85- 98 ,(1983) , 10.1007/978-1-4615-6651-9_5
Alexander. Van Geen, Edward. Boyle, Automated preconcentration of trace metals from seawater and fresh water Analytical Chemistry. ,vol. 62, pp. 1705- 1709 ,(1990) , 10.1021/AC00214A035
Laurence Armi, Dave Hebert, Neil Oakey, James F. Price, Philip L. Richardson, H. Thomas Rossby, Barry Ruddick, Two Years in the Life of a Mediterranean Salt Lens Journal of Physical Oceanography. ,vol. 19, pp. 354- 370 ,(1989) , 10.1175/1520-0485(1989)019<0354:TYITLO>2.0.CO;2
Lars-Göran Danielsson, Bertil Magnusson, Stig Westerlund, Kerong Zhang, Trace metal determinations in estuarine waters by electrothermal atomic absorption spectrometry after extraction of dithiocarbamate complexes into freon Analytica Chimica Acta. ,vol. 144, pp. 183- 188 ,(1982) , 10.1016/S0003-2670(01)95531-X