Abstract
Most estuaries receive a high heavy-metal input from industries. This is reflected in the relatively high levels found in numerous estuarine organisms and in sediments. Many indicators have been suggested for facilitating the detection of heavy-metal pollution, but the problems in using these indicators to evaluate the metal loading of estuaries are considerable. Variations in species composition, and conditions at different sites, differences in season of sampling, and age of organism, as well as different metal levels in different parts of the organism, make the interpretation of results difficult. The levels reported here, similar to those in other unpolluted estuaries, have been used to suggest a baseline concentration for heavy metals in estuaries. The concept of a baseline is fundamental to the formation of a “Biological Quality Index” and “Pollution Load Index,” and a formula for such an index is suggested and tested at a preliminary level against published data for an English and a European estuary.
Literature cited
Boyden, C. R., 1977. Effect of size upon metal content of shellfish. — J. mar. biol. Ass. U. K.57, 675–714.
Bryan, G. W., 1968. Concentrations of zinc and copper in the tissues of decapod crustaceans. — J. mar. biol. Ass. U. K.48, 303–321.
Bryan, G. W., 1971. The effects of heavy metals (other than mercury) on marine and estuarine organisms. — Proc. R. Soc. (B)177, 389–410.
Bryan, G. W., 1973. The occurrence and seasonal variation of trace metals in the scallopsPecten maximus (L.) andChlamys opercularis (L.). — J. mar. biol. Ass. U. K.53, 145–166.
Bryan, G. W. & Hummerstone, L. G., 1977. Indicators of heavy-metal contamination in the Looe Estuary (Cornwall) with particular regard to silver and lead. — J. mar. biol. Ass. U. K.57, 75–92.
Crisp, D. J., 1976. Survey of environmental conditions in the Liffey Estuary and Dublin Bay. Unit of Marine Invertebrate Biology, Marine Science Laboratories, Menai Bridge, Gwynedd, U. K., 74 pp.
Duursma, E. K., 1976. Radioactive tracers in estuarine chemical studies. In: Estuarine chemistry. Ed. by J. D. Burton & P. S. Liss. Academic Press, London, 159–183.
Engel, D. W. & Fowler, B. A., 1979. Factors affecing cadmium accumulation and its toxicity to marine organisms. — Environ. Hlth Perspect.28, 81–88.
Fuge, R. & James, K. H., 1974. Trace metal concentrations inFucus from the Bristol Channel. — Mar. Pollut. Bull.5, 9–12.
Goldberg, E. W., Bowen, U. T., Farrington, J. W., Harvey, G., Martin, J. H., Parker, P. L., Risebrough, R. W., Robertson, W., Schneider, E. & Gamble, E., 1978. The mussel watch. — Environ. Conserv.5, 1–25.
Groot, A. J. de, Salomans, W. & Allersma, E., 1976. Processes affecting heavy metals in estuarine sediments. In: Estuarine chemistry. Ed. by J. D. Burton & P. S. Liss. Academic Press, London, 131–157.
Melhuus, A., Seip, K. L., Seip, H. M. & Myklestad, S., 1978. A preliminary study of the use of benthic algae as biological indicators of heavy metal pollution in Sørfjorden, Norway. — Environ. Pollut.15, 101–107.
Murray, C. N. & Meinke, S., 1974. Influence of soluble sewage material on absorption and desorption behaviour of Ag, Cd, Co and Zn in sediment-sea water system. — J. oceanogr. Soc. Japan30, 216–221.
Murray, C. N. & Murray, L. 1973. Absorption-desorption equilibria of some radionuclides in sediment-fresh water and sediment-sea water systems. In: Radio-active contamination of the marine environment. I. A. E. A., Vienna, 105–124.
Nielsen, S. A., 1974. Vertical concentration gradients of heavy metals in cultured mussels. — N.Z.Jl mar. Freshwat. Res.8, 631–636.
Pentreath, R. J., 1973. The accumulation from water of Zn65, Mn54, Co58 and Fe59 by the musselMytilus edulis. — J. mar. biol. Ass. U. K.53, 127–143.
Phillips, D. J. H., 1976. The common musselMytilus edulis as an indicator of pollution by zinc, cadmium, lead and copper. I. Effects of environmental variables on uptake of metals. — Mar. Biol.38, 59–69.
Phillips, D. J. H., 1979. Trace metals in the common mussel,Mytilus edulis (L.), and in the algaFucus vesculosus (L.) from the region of the sound (Oresund). — Environ. Pollut.18, 31–41.
Preston, A., Jefferies, D. F., Dutton, J. W. R., Harvey, B. R. & Steele, A. K., 1972. British Isles coastal waters: The concentrations of selected heavy metals in sea water, suspended matter and biological indicators — a pilot survey. — Environ. Pollut.3, 69–82.
Reish, D. J., 1978. The effects of heavy metals on polychaetous annelids — Revue int. Océanogr. méd.49, 99–103.
Schulz-Baldes, M., 1974. Lead uptake from sea-water and food, and lead loss in the common musselMytilus edulis — Mar. Biol.25, 177–193.
Sunda, W. G., Engel, D. W. & Thuotte, R. M., 1978. Effect of chemical speciation on toxicity of cadmium to grass shrimp.Palaemonetes pugio: Importance of free cadmium ion. — Environ. Sci. Technol.12, 409–413.
Thomas, W. A., 1975. Indicators of environmental quality. Plenum Press, New York, 275 pp.
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Tomlinson, D.L., Wilson, J.G., Harris, C.R. et al. Problems in the assessment of heavy-metal levels in estuaries and the formation of a pollution index. Helgolander Meeresunters 33, 566–575 (1980). https://doi.org/10.1007/BF02414780
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DOI: https://doi.org/10.1007/BF02414780
Keywords
- Heavy Metal
- Waste Water
- Water Pollution
- Species Composition
- Quality Index