A Geographic Information System (GIS) analysis for trace metal assessment of sediments in the Gulf of Paria, Trinidad
作者： Wendy Norville , Yosha Ragbirsingh
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摘要: The Gulf of Paria is a semi-enclosed shallow basin with increasing coastal development activities along Trinidad's west coast. Sediments present host for trace metal pollutants from overlying waters, therefore determination their content critical in evaluating and detecting sources marine pollution. This paper presents Geographic Information System (GIS) analysis geochemical assessment metals sediments the Paria. GIS approach facilitates interpretation spatial relationships among key environmental processes. involves integration attribute data pertaining to bathymetry, current systems, topography, rivers, land use/land cover sediments. It employs interpolation retrieval operations analyze total concentrations aluminum, copper lead clay-enriched sediments, determine whether they are related sediment type or affected by discharge anthropogenic sources. Spatial distribution modeling element concentra- tions produced indicate contamination plumes possible such as rivers entering Paria, reveal potential hot spots dispersion patterns. A direct correlation between high aluminum detected, however regions relationship effectiveness visualization, query overlay demonstrated.
academica.mx参考文章(23)
B. N. Troup, O. P. Bricker, Processes affecting the transport of materials from continents to oceans ,(1975)
Graeme Bonham-Carter, Geographic Information Systems for Geoscientists: Modelling with GIS ,(1995)
Rachael A. McDonnell, Peter A. Burrough, Principles of Geographical Information Systems ,(1998)
S. Nasr, H. Ezzat, M. El-Raey, A. Ibrahim, Geographical Information System Analysis for Sediments, Heavy Metals and Pesticides in Abu-Qir Bay, Egypt Journal of Coastal Research. ,vol. 13, pp. 1233- 1237 ,(1997)
Helmut Erlenkeuser, Erwin Suess, Horst Willkomm, Industrialization affects heavy metal and carbon isotope concentrations in recent Baltic Sea sediments Geochimica et Cosmochimica Acta. ,vol. 38, pp. 823- 842 ,(1974) , 10.1016/0016-7037(74)90058-1
P. Szefer, A. Kusak, K. Szefer, H. Jankowska, M. WoŁowicz, Anis Ahmed Ali, Distribution of selected metals in sediment cores of puck bay, Baltic Sea Marine Pollution Bulletin. ,vol. 30, pp. 615- 618 ,(1995) , 10.1016/0025-326X(95)00079-3
Chaosheng Zhang, Lijun Wang, Multi-element geochemistry of sediments from the Pearl River system, China Applied Geochemistry. ,vol. 16, pp. 1251- 1259 ,(2001) , 10.1016/S0883-2927(01)00007-5
O.S. Selinus, K. Esbensen, Separating anthropogenic from natural anomalies in environmental geochemistry Journal of Geochemical Exploration. ,vol. 55, pp. 55- 66 ,(1995) , 10.1016/0375-6742(95)00034-8
Heike Schmidt, Clare E Reimers, None, The recent history of trace metal accumulation in the Santa Barbara Basin, southern California Borderland Estuarine, Coastal and Shelf Science. ,vol. 33, pp. 485- 500 ,(1991) , 10.1016/0272-7714(91)90086-Q
L. Hall, I. Chang-Yen, Metals in sediments off Trinidad, West Indies Marine Pollution Bulletin. ,vol. 17, pp. 274- 276 ,(1986) , 10.1016/0025-326X(86)90063-9