RELATIONSHIP BETWEEN GRAIN SIZE AND HEAVY METALS IN SEDIMENTS FROM BEACHES ALONG THE COAST OF GUYANA
作者： K Cabana , C H Lakhan , P D La Valle
DOI:
关键词:
摘要: This paper examined surficial sediments collected from eroding and accreting beaches along the coast of Guyana for concentrations toxic heavy metals. Twenty-four samples were collected, twelve each Melanie Beach Albion Beach. Three grain size fractions (4.0 phi, 5.0 phi >5.0 phi) plus twenty-four bulk less than 4.0 in diameter analyzed a total 96 samples. Each sample was presence eight metals, these being aluminum, chromium, copper, iron, lead, nickel, vanadium zinc. The chemically by aquaregia, followed inductively coupled plasma-optical emission spectroscopy. Discriminant analysis, analysis variance correlation regression techniques used to analyze datasets. Results discriminant emphasized that metal unique beach. (ANOVA) showed sediment had pronounced effect on spatial distribution Correlation substantiated ANOVA results, revealed existence an inverse relationship between metals sediments. accretionary beach, with finer sediments, accumulated far more coarser-grained receding At all increased shoreward direction while at decreased direction.
jstor.org 参考文章(23)
Jose A. Jimenez, Jorge Guillen, Processes behind the longshore variation of the sediment grain size in the Ebro Delta coast Journal of Coastal Research. ,vol. 11, pp. 205- 218 ,(1995)
V. Chris Lakhan, David A. Pepper, Relationship Between Concavity and Convexity of a Coast and Erosion and Accretion Patterns Journal of Coastal Research. ,vol. 13, pp. 226- 232 ,(1997)
I. De Gregori H., H. Pinochet C., M. Arancibia J., A. Vidal B., Grain size effect on trace metals distribution in sediments from two coastal areas of Chile Bulletin of Environmental Contamination and Toxicology. ,vol. 57, pp. 163- 170 ,(1996) , 10.1007/S001289900170
Scott L. Douglass, Beach Erosion and Deposition on Dauphin Island, Alabama, U.S.A. Journal of Coastal Research. ,vol. 10, pp. 306- 328 ,(1994)
P.T. Hanamgond, V.C. Chavadi, Small Scale Temporal Variations in Morphology and Grain Size Characteristics of the Sediments of Binge Beach, India Journal of Coastal Research. ,vol. 8, pp. 201- 209 ,(1992)
V.Chris Lakhan, Planning and development experiences in the coastal zone of Guyana Ocean & Coastal Management. ,vol. 22, pp. 169- 186 ,(1994) , 10.1016/0964-5691(94)90030-2
E. J. Mantei, E. J. Sappington, Heavy metal concentrations in sediments of streams affected by a sanitary landfill: A comparison of metal enrichment in two size sediment fractions Environmental Earth Sciences. ,vol. 24, pp. 287- 292 ,(1994) , 10.1007/BF00767090
Joseph H. Rule, Assessment of trace element geochemistry of Hampton Roads harbor and lower Chesapeake Bay area sediments Environmental Geology and Water Sciences. ,vol. 8, pp. 209- 219 ,(1986) , 10.1007/BF02524948
R. Ramesh, V. Subramanian, R. Grieken, Heavy metal distribution in sediments of Krishna River basin, India Environmental Earth Sciences. ,vol. 15, pp. 207- 216 ,(1990) , 10.1007/BF01706412
Boris S. Krumgalz, Unusual grain size effect on trace metals and organic matter in contaminated sediments Marine Pollution Bulletin. ,vol. 20, pp. 608- 611 ,(1989) , 10.1016/0025-326X(89)90397-4