Abstract
Mercury concentrations were measured in samples of peat soils, sediments and clams (Rangia cuneata) from a peatland region of the Albemarle-Panlico Peninsula of North Carolina. Total Hg concentrations in peat cores ranged from 40 to 193 ng g−1 (dw); no depth-related trends were noted. Mercury concentrations in surface sediments from canals draining the peatlands and from the Pungo River that receives this drainage ranged from 8 to 20 ng g−1 (dw). Selective extractions of these peat and sediment samples revealed that the bulk of the Hg was associated with organic matter-associated fractions (particularly humic/fulvic acid bound and organic-sulfide bound fractions). No Hg was detected in the relatively mobile and bioavailable water-soluble or ion-exchangeable fractions. Total Hg concentrations in the soft tissues of clams from the Pungo River ranged from 25 to 32 ng g−1 (ww). No concentrations of methyl Hg above the detection limit of a 25 ng g−1 were measured in soils, sediments, or clams. These data indicate that Hg concentrations in this region are at the low end of the distribution of levels reported for uncontaminated systems and that mining of these peatlands is unlikely to significantly elevate Hg concentrations in the receiving estuarine system.
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Agemian, H. and Chan, A. S. Y.: 1976, Analyst 101, 91.
APHA: 1971, Standard Methodsfor the Examination of Water and Wastewater, 13th edition, American Health Association, Washington, DC.
Beijer, K. and Jernelov, A.: 1979, in J. O. Nriagu (ed.), The Biogeochemistry of Mercury in the Environment, Elsevier, Amsterdam, pp. 203–210.
Benes, P. and Havlik, B.: 1979, in J. O. Nriagu (ed.), The Biogeochemistry of Mercury in the Environment, Elsevier, Amsterdam, pp. 175–202.
Bland, S., Ackroyd, D. R., Marsh, J. G., and Millward, G. E.: 1982, Sci. Total Environ. 22, 235.
Bloom, H. and Ayling, G. M.: 1977, Environ. Geol. 2, 3.
Breteler, R. J., Valiela, I., and Teal, J. M.: 1981, Estuar. Coast. Shelf Sci. 12, 155.
Breward, N. and Peachey, D.: 1983, Sci. Total Environ. 29, 155.
Caldwell, R. S. and Buhler, D. R.: 1983, Arch. Environ. Contam. Toxicol. 12, 15.
Casagrande, D. J. and Erchull, L. D.: 1976, Geochim. Cosmochim. Acta 40, 387
Clausen, J. C., Lewis, J. R., Brooks, K. N., and Guertin, D. P.: 1980, Proceedings of the 6th International Peat Congress, Duluth, MN, pp. 533–537.
Cox, M. F., Holm, H. W., Kania, H. J., and Knight, R. L.: 1975, Trace Subst. Environ. Health 9, 151.
DEM: 1983, Investigations of Mercury in the Pamlico/Albemarle Peninsula, Division of Environmental Management, North Carolina Department of Natural Resources and Community Development, Raleigh.
Daniel, P. B.: 1981, The Occurrence and Distribution of Elements in a Modern Coal-Forming Environment on the Atlantic Coastal Plain in Dare County, North Carolina, M. S. Thesis, University of South Carolina, Columbia.
Di Giulio, R. T. and Scanlon, P. F.: 1985, Sci. Total Environ 41, 259.
ESE: 1983, Mercury Standard Revision Report, Appendix A, Environmental Science and Engineering, Gainesville, Florida, ESE No. 83-600-601.
Eganhouse, R. R., Young, D. R., and Johnson, J. N.: 1978, Environ. Sci. Technol. 12, 1151.
Evans, D. W., Di Giulio, R. T., and Ryan, E. A.: 1984, Report No. 218, University of North Carolina Water Resources Research Institute, Raleigh.
Fagerstrom, T. and Jernelov, A.: 1972, Water Res. 6, 1193.
Fitzgerald, W. F. and Lyons, W. B.: 1973, Nature 242, 452.
Garcia, J. D. and Kidd, D. E.: 1979, Bull. Environ. Contam. Toxicol. 21, 624.
Gardner, W. S., Odom, D. R., Windom, H. L., and Stephens, J. A.: 1978, Environ. Pollut. 15, 243.
Glooschenko, W. A. and Capoblanco, J. A.: 1982, Environ. Sci. Technol. 16, 187.
Grigal, D. F. and Nord, W. S.: 1983: Investigations of Heavy Metals in Minnesota Peatlands, Report to the Minnesota Department of Natural Resources, Division of Minerals, Minneapolis.
Gupta, S. and Chen, K.: 1975: Environ. Letters 10, 129.
Hatch, W. R. and Ott, W. L.: 1968, Anal. Chem. 40, 2085.
Huckabee, J. W., Elwood, J. W., and Hildebrand, S. G.: 1979, in J. O. Nriagu (ed.), The Biogeochemistry of Mercury in the Environment, Elsevier, Amsterdam, pp. 277–302.
Ingram, R. L. and Otte, L. J.: 1981, Peat Deposits of Croatan Forest, Craven, Jones, and Carteret Counties, North Carolina, Report to the U.S. Department of Energy, Washington, DC, and North Carolina Energy Institute, Raleigh.
Jackson, T. A.: 1979, Environ. Pollut. 18, 131.
Jernelov, A. and Lann, H.: 1971, Oikos 22, 403.
Kidd, D. E. and Johnson, G. V.: 1972, J. Colorado Acad. Sci. 60 (Abstr.).
Kiorboe, T., Mohlenberg, F., and Riisgard, H. U.: 1983, Mar. Pollut. Bull. 14, 21.
Langston, W. J.: 1982, J. Mar. Biol. Assoc. U.K., 62, 667.
Lindberg, S. E. and Harriss, R. C.: 1974, Environ. Sci. Technol. 8, 459.
Madsen, P. P.: 1981, Natura 293, 127.
Neff, J. W., Foster, R. S., and Slowey, J. F.: 1978, Availability of Sediment-Adsorbed Heavy Metals to Benthos with Particular Emphasis on Deposit-Feeding Fauna, Final Report to the U.S. Army Corps of Engineers, Dredge Material Research Program, Vicksburg, MS, Technical Report D-78–42.
Ottawa River Project Group: 1979, Environ. Res. 19, 231.
Pace, C. B. and Di Giulio, R. T.: 1986, Environ. Pollut. (Ser. B), in press.
Peat Mining Task Force: 1983, Peat Mining and Natural Resources, A report of the North Caolina Department of Natural Resources and Community Development, Raleigh.
Price, R. E. and Knight, L. A.: 1978, Pestic. Monitor. J. 11, 182.
Rashid, M. A.: 1974, Chem. Geo. 13, 115.
SAS Institute, Inc.: 1985, SAS User's Guide: Statistics Version5th Edition, Gary, North Carolina.
Shum, G. T. C., Freeman, H. C., and Uthe, J. F.: 1979, Anal. Chem. 51, 414.
Simola, H. and Lodenius, M.: 1982, Bull. Environ. Contam. Toxicol. 29, 298.
Sullivan, J. R. and Delfino, J. J.: 1982, J. Environ. Sci. Health A17, 265.
Tessier, A., Campbell, P. G. C., and Bisson, M.: 1979, Anal. Chem. 51, 844.
Thomas, R. L. and Jaquet, J.-M.: 1976, J. Fish. Res. Board. Lan. 33, 404.
Uthe, J. F., Armstrong, F. A. J., and Stainton, M. P.: 1970, J. Fish. Res. Board Can. 27, 805.
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Di Giulio, R.T., Ryan, E.A. Mercury in soils, sediments, and clams from a North Carolina peatland. Water Air Soil Pollut 33, 205–219 (1987). https://doi.org/10.1007/BF00191389
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DOI: https://doi.org/10.1007/BF00191389