Abstract
Sediments from San Antonio Bay, the northwest Gulf of Mexico, and the Mississippi River Delta were acid leached and analyzed for Fe, Mn, Pb, Zn, Cd, Cu and Ni by atomic absorption spectrophotometry. In order to account for differences in sediment clay, carbonate, and organic matter content, metal concentrations were normalized to Fe. Significant linear correlations of metals to Fe were obtained for unpolluted sediments and deviations from these “natural” statistical populations were found for areas thought to have metal input caused by man.
San Antonio Bay sediments show little evidence of metal pollution despite 70 years of shell dredging in the bay. However, the San Antonio-Guadalupe River system, the bay's prime sediment source, has 10% to 50% higher than natural levels of Pb, Cd and Cu.
Sediments from a 1500 km2 area of the Mississippi River Delta have Pb and Cd concentrations 10% to 100% higher than expected levels. The vertical distribution of Pb and Cd in these sediments suggests that inputs have occurred during the past 30 to 40 years. We find no indication of metal pollution in other areas of the Delta or along the continental shelf of the northwest Gulf of Mexico.
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Bouma, A. H., 1974, Final environmental statement, shell dredging in San Antonio Bay, Texas: Texas A&M Univ. Research Foundation, 173 p.
Bruland, K. W., K. Bertine, M. Koide, and E. D. Goldberg, 1974, History of metal pollution in Southern California coastal zone: Environ. Sci. Technol., v. 8, p. 425–432.
Davis, D. R., 1968, The measurement and evaluation of certain trace metal concentrations in the nearshore environment of the Northwest Gulf of Mexico and Galveston Bay: Texas A&M Univ., unpub. Ph.D. dissert., 70 p.
Durum, W. H., J. D. Hem, and S. G. Heidel, 1971, Reconnaissance of selected minor elements in the surface waters of the United States, October 1970: U.S. Geol. Survey Circ. 643, 49 p.
Everett, D. E., 1971, Hydrologic and quality characteristics of the Lower Mississippi River: Louisiana Dept. Public Works-U.S. Geol. Survey, 48. p.
Folk, R. L., 1968, Petrology of sedimentary rocks: Austin, Hemphills, 170 p.
Fukai, R., 1965, Chemical composition of shallow-water sediments in the Bay of Roquebrune: Bull. Inst. Oceanogr. Monaco, v. 65, no. 1337, 15 p.
Goldberg, E. D., 1954, Marine geochemistry 1. Chemical scavengers of the sea: Journ. Geol., v. 62, p. 249–265.
Gorsuch, T. T., 1970, The destruction or organic matter: New York, Pergamon, 152 p.
Grim, R. E., and W. D. Johns, 1954, Clay mineral investigation of sediments in the northern Gulf of Mexico, in Swineford, A., and N. Plummer, eds., Clays and clay minerals, proc. natl. conf., 2nd: Washington, D.C., Natl. Acad. Sci., p. 81–103.
Hall, G. L., 1973, Subenvironments of deposition in San Antonio Bay, Texas: Texas A&M Univ., unpub. M.S. Thesis, 142 p.
Hann, Jr., R. W., and J. F. Slowey, 1972, Sediment analysis-Galveston Bay: Env. Eng. Div., Texas A&M Univ., Tech. Rept. 24, 57 p.
Hirst, D. M., 1962, The geochemistry of modern sediments from the Gulf of Paria—II. The location and distribution of trace elements: Geochim. Cosmochim. Acta, v. 26, p. 1147–1187.
Holmes, C. W., 1973, Distribution of selected elements in surficial marine sediments of the northern Gulf of Mexico Continental Shelf and slope: U.S. Geol. Survey Prof. Pap. 814, 7 p., 4 plates.
Holmes, C. W., E. A. Slade, and C. J. McLerran, 1974, Migration and redistribution of zinc and cadmium in marine estuarine system: Environ. Sci. Technol., v. 8, p. 255–259.
Jeffery, P. G., 1970, Chemical methods of rock analysis: Oxford Pergamon, 509 p.
Jenne, E. A., 1968, Controls on Mn, Fe, Co, Ni, Cu, and Zn concentrations in soils and water: The significant role of hydrous Mn and Fe oxides: ACS, Advan. Chem. Ser., no. 73, p. 337–387.
Jones, A. S. G., 1973, The concentration of copper, lead, zinc, and cadmium in shallow marine sediments, Cardigan Bay (Wales): Mar. Geol., v. 14, p. M1-M9.
Kopp, J. E., and R. C. Kroner, 1968, Trace metals in waters of the U.S.: Cincinnati, U.S. Dept. Interior, Fed. Water Pollut. Control Admin., p. J1–J22.
Ludwig, C. P., 1971, The micropaleontological boundary between Holocene and Pleistocene sediments in the Gulf of Mexico: Texas A&M Univ., unpub. M.S. thesis, 143 p.
Moore, D. G., 1955, Rate of deposition shown by relative abundance of foraminifera: Bull. Am. Assoc. Petrol. Geol., v. 39, p. 1594–1600.
Moore J.R., III, 1963. Bottom sediment studies, Buzzards Bay Massachusetts: Jour. Sediment. Petrol., v. 33, p. 511–558.
Oliver, B. G., 1973, Heavy metal levels of Ottawa and Rideau River sediments: Environ. Sci. Technol., v. 7, p. 135–137.
Piper, D. Z., 1971, The distribution of Co, Cr, Cu, Fe, Mn, Ni and Zn in Framvaren, a Norwegian anoxic fjord: Geochim. Cosmochim. Acta, v. 35, p. 531–550.
Potter, P. E., N. F. Shimp, and J. Witters, 1963, Trace elements in marine and freshwater argillaceous sediments: Geochim. Cosmochim. Acta, v. 27, p. 669–694.
Presley, B. J., 1973, Chemical parameters, analytical techniques: in Bouma, A., ed., Environmental impact assessment of shell dredging in San Antonio Bay, Texas: Texas A&M Research Foundation, v. 4, p. 1–20.
—— 1975, A simple method for determining calcium carbonate in sediment samples: Jour. Sediment. Petrol., v. 45, p. 745–746.
——, Y. Kolodny, A. Nissenbaum, and I. R. Kaplan, 1972, Early diagenesis in a reducing fjord, Saanich Inlet, British Columbia—II. Trace element distribution in interstitial water and sediment: Geochim. Cosmochim. Acta. v. 36, p. 1073–1090.
Shepard, F. P., and D. G. Moore, 1955, Central Texas coast sedimentation: characteristics of sedimentary environment, recent history, and diagenesis: Bull. Am. Assoc. Petrol. Geol., v. 39, p. 1463–1593.
Shepard, F. P., and D. G. Moore, 1960, Bays of central Texas coast, in Recent sediments, northwest Gulf of Mexico: Tulsa, Am. Assoc. Petrol. Geol., p. 117–152.
Skei, J. M., N. B. Price, S. E. Calvert, and H. Holtedahl, 1972, The distribution of heavy metals in sediments of Sorfjord West Norway: Water, Air, Soil Pollut., v. 1, p. 452–461.
Smith, P. A., and J. R. Moore, 1972, The distribution of trace metals in the surficial sediments surrounding Keweenaw Point Upper Michigan, in Proc. 15th conf. Great Lakes research: Ann Arbor, Internat Assoc. Great Lakes Res., p. 383–393.
Tieh, T. T., and T. E. Pyle, 1972, Distribution of elements in Gulf of Mexico sediments in Rezak, R., and V. J. Henry, eds., Contributions on the geological and geophysical oceanography of the Gulf of Mexico Houston, Gulf Pub. Co., p. 129–152.
Tieh, T. T., T. E. Pyle, D. H. Egler, and R. A. Nelson, 1973, Chemical variations in sedimentary facies of an inner continental shelf environment, northern Gulf of Mexico: Sediment. Geol., v. 9, p. 110–115.
U.S. Geol. Survey, 1973, Quality of surface waters of the U.S., 1968, Part 7. Lower Mississippi River Basin: U.S. Geol. Survey Water-Supply Paper 2096, 438 p.
U.S. Geol. Survey, 1975, Water resources data for Louisiana: U.S. Geol. Survey Water-Data Rept. LA-75-1, 816 p.
Wedepohl, K. H., 1960, Spurenanlytische Untersuchungen an Tiefseetonen aus dem Atlantik: Geochim Cosmochim. Acta, v. 18, p. 200–231.
Young, E. J., 1954, Studies of trace elements in sediments: MIT, unpub. Ph.D. dissert. 99 p.
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Trefry, J.H., Presley, B.J. Heavy metals in sediments from San Antonio Bay and the northwest Gulf of Mexico. Geo 1, 283–294 (1976). https://doi.org/10.1007/BF02676717
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DOI: https://doi.org/10.1007/BF02676717