The ecotoxicology of lead shot and lead fishing weights
Tóm tắt
Lead shot ingestion is the primary source of elevated lead exposure and poisoning in waterfowl and most other bird species. For some species (e.g. Common Loons, Gavia immer), lead sinker ingestion is a more frequent cause of lead poisoning. In freshwater environments where recreational angling activity and loon populations co-occur, lead poisoning from ingestion of small (<50 gram) lead sinkers or jigs accounts for 10–50% of recorded adult loon mortality, depending on the locations studied. Lead shot ingestion occurs in waterfowl, and in a wide variety of non-waterfowl species, including upland game birds, shorebirds, raptors, and scavengers. Where it has been explicitly studied in Canada and the US, lead poisoning mortality of bald (Haliacetus leucocephalus) and golden eagles (Aquila chrysactos) from eating prey animals with lead shot embedded in their tissues accounts for an estimated 10–15% of the recorded post-fledging mortality in these raptorial species. In addition to environments that experience hunting with lead shot, clay target shooting ranges, especially those in which the shotfall zones include ponds, marshes, lakes, rivers, beaches, or other aquatic-type environments, create a significant risk of shot ingestion and poisoning for waterbirds. Metallic lead pellets deposited onto soils and aquatic sediments are not chemically or environmentally inert, although tens or hundreds of years may be required for total breakdown and dissolution of pellets. Functional, affordable non-toxic alternatives to lead shot and sinkers are being currently produced, and additional such products are being developed. Several countries have successfully banned the use of small lead sinkers, and of lead shot for waterfowl and other hunting, also for clay target shooting, using a phasing-out process that gives manufactures, sellers, and users adequate time to adjust to the regulations.
Tài liệu tham khảo
Allcroft, R. (1951) Lead poisoning in cattle and sheep. Vet. Rec. 63, 583–90.
Ankney, C.D. (1975) Incidence and size of lead shot in lesser snow geese. Wildl. Soc. Bull. 3, 25–6.
ANZECC (1994) Report to the Australian and New Zealand Environment and Conservation Council on Alternative Shot to Lead in Hunting. Prepared by NSW National Parks and Wildlife Service. April. 32 pp.
Banko, W.E. (1960) The trumpeter swan, its history, habits and population in the United States. N. Amer. Fauna. U.S. Fish and Wildl. Serv., No. 63. Washington, D.C. 214 pp.
Bellrose, F.C. (1959) Lead poisoning as a mortality factor in waterfowl populations. Ill. Nat. Hist. Surv. Bull. 27, 235–88.
Best, T.L., Garrison, T.E. and Schmidt, C.G. (1992) Availability and ingestion of lead shot by mourning doves (Zenaida macroura) in Southeastern New Mexico. Southwestern Naturalist 37(3), 287–92.
Birkhead, M. (1982) Causes of mortality in the Mute Swan Cygnus olor in the river Thames. J. Zool. 198, 15–25.
Bjorn, H., Gyrd-Hansen, N. and Kraul, I. (1982) Birdshooting, lead pellets and grazing cattle. Bull. Environ. Contamin. Toxicol. 29, 174–6.
Blus, L.J. (1994) A review of lead poisoning in swans. Comp. Biochem. Physiol. 108C, 259–67.
Brister, B. (1992) Steel shot: Ballistics and gunbarrel effects. In D.J. Pain (ed) Lead Poisoning in Waterfowl. Proc. IWRB Workshop, Brussels, Belgium. 1991 IWRB Spec. Publ., Slimbridge, UK.
Clausen, B. (1992) Lead poisoning control measures in Denmark. In D.J. Pain (ed) Lead Poisoning in Waterfowl. IWRB Spec. Publ. 16, Slimbridge, UK.
Clausen, B., Haarbo, K. and Wolstrup, C. (1981) Lead in pellets in Danish cattle. Nord. Vet. Med. 33, 65–70.
Coburn, C. (1992) Lead poisoning in waterfowl: The Winchester Perspective. In D.J. Pain (ed) Lead Poisoning in Waterfowl. IWRB Spec. Publ. 16, Slimbridge, UK.
Dorgelo, F. (1994) Alternatives for lead shot and fishing sinkers in the Netherlands. Issue paper presented at the OECD Workshop on Lead Products and Uses. September 12–15, Toronto, Canada. 5 pp.
Droual, R., Meteyer, C.U. and Galey, F.W. (1991) Zinc toxicosis due to ingestion of a penny in a grayheaded chachalaca (Ortalis cinerciceps). Avian Dis. 37, 1007–11.
Elder, W.H. (1950) Measurements of hunting pressure in waterfowl by means of x-ray. Trans. N. Amer. Wildl. Conf. 15, 490–504.
Elder, W.H. (1955) Fluroscope measures of hunting pressure in Europe and North America. Trans. N. Amer. Wildl. Conf. 20, 298–322.
Emerson, R. (1994) Contamination of Soil from Gun Shot: St. Thomas Gun Club (1993) Technical Memorandum. Report No. SDB 052–4304–94 TM. Standards Development Branch, Phytotoxicology Section. Ministry of Environment and Energy. Brampton, Ontario. 15 pp.
Ensor, K.L., Helwig, D.D. and Wemmer, L.C. (1992) Mercury and lead in Minnesota Common Loons (Gavia immer). Water Quality Division, Minnesota Pollution Control Agency, St. Paul, Minnesota. 32 pp.
Fisher, F.M., Hall, S.L., Wilder, W.R., Robinson, B.E. and Lobpries, D.S. (1986) An analysis of spent shot in Upper Texas coastal waterway wintering habitat. In J.S. Feierabend and A. Russell (eds) Lead Poisoning in Waterfowl, A Workshop. March 3–4, 1984. Wichita, Kansas. Nat. Wildl. Fed. Washington, D.C.
Frape, D.L. and Pringle, J.D. (1984) Toxic manifestations in a dairy herd consuming haylage contaminated by lead. Vet. Rec. 114, 615–6.
Friberg, L. and Lener, J. (1986) Molybdenum. In L. Friberg, G.F. Nordberg, and V. Vouk (eds) Handbook on the Toxicity of Metals, 2nd edition. pp. 446–61. Elsevier Science Publishers B.V. New York.
Funk, H. (1951) Unpubl. Prog. Pep. CO W37R4 4–51. Colo. Div. Wildl., Denver, CO.
Government of Great Britain (1986) The control of pollution (angler's lead weights). Statutory Instruments No. 1992. 3 pp.
Grandy, J.W.IV, Locke, L.N. and Bagley, G.E. (1968) Relative toxicity of lead and five proposed substitute shot types to pen-reared mallards. J. Wildl. Manag. 32, 483–8.
Grinell, G.B. (1894) Lead poisoning. Forest and Stream 42, 117–8.
Guitart, R., To-Figuevas, J., Mateo, R., Bertolero, A., Cerradelo, S. and Martínez-Vilalta, A. (1994) Lead poisoning in waterfowl from the Edro Delta, Spain: calculation of lead exposure thresholds for mallards. Arch. Environ. Contam. Toxicol. 27, 289–93.
Hall, S.L. and Fisher, F.M. (1985) Lead concentrations in tissues of marsh birds: Relationship of feeding habits and grit preference to spent shot ingestion. Bull. Environ. Contam. Toxicol. 35, 1–8.
Honda, K., Lee, D.P. and Tasukawa, R. (1990) Lead poisoning in Swans in Japan. Environ. Poll. 65, 209–18.
Hough, E. (1894) Lead-poisoned ducks. Forest and Stream 42, 117.
Howard, D.R. and Braum, R.A. (1980) Lead poisoning in a dairy herd. Proc. Ann. Meet. Amer. Assoc. Vet. Lab Diag. 23, 53–8.
Hunter, D.B. and Haigh, J.C. (1978) Demylelinating peripheral neuropathy in a guinea hen associated with subacute lead intoxication. Avian Dis. 22, 344–9.
Jackson, T. (1994) Glimmer of Hope. Shooting Times and Country Magazine. September 15–21, 10–12.
Jorgensen, S.S. and Willems, M. (1987). The transformation of lead pellets in shooting range soils. Ambio 16, 11–15.
Kaiser, G.W., Fry, W. and Ireland, J.G. (1980) Ingestion of lead shot by Dunlin. The Murrelet 61, 37.
Kazantzis, G. (1986) Tungsten. In L. Friberg, G.F. Nordberg, and V. Vouk (eds) Handbook of the Toxicology of Metals, 2nd edition. pp. 610–22. Elsevier Science Publishers. B.V. New York.
Kennedy, J.A. and Nadeau, S. (1993) Lead shot contamination of waterfowl and their habitats in Canada. Can. Wildl. Serv. Tech. Rep. Series No. 164, Canadian Wildlife Service, Ottawa, Canada. 109 pp.
King, M. (1993) Bismuth shot now established as a legal alternative to steel in the Northern Territory. Australian Shooters Journal. January, 56–7.
Kingsford, R.T., Flanjak, J. and Black, S. (1989) Lead shot on Lake Cowal. Aust. Wildl. Res. 16, 167–72.
Kirby, J., Delany, S. and Quinn, J. (1994) Mute swans in Great Britain — a review, current status, and long-term trends. Hydrobiologia 280, 467–82.
Kirby, R.E., Obrecht, H.H. and Perry, H.C. (1983) Body shot in Atlantic Brant. J. Wildl. Manag. 47, 527–30.
Lewis, J.C. and Leger, E. (1968) Lead shot ingestion by Mourning Doves and incidence in soil. J. Wildl. Manag. 32, 476–82.
Locke, L.N. and Bagley, G.E. (1967) Lead poisoning in a sample of Maryland Mourning Doves. J. Wildl. Manag. 31, 515–8.
Locke, L.N. and Friend, M. (1992) Lead poisoning of avian species other than waterfowl. In D.J. Pain (ed) Lead Poisoning in Waterfowl. pp. 19–22. IWRB Spec. Publ. 16, Slimbridge, UK.
Lowry, E. (1993) Bismuth Shot: The Ballistic Potential. American Rifleman. September. 6 pp.
Lumeij, J.T. and Scholten, H. (1989) A comparison of two methods to establish the prevalence of lead shot ingestion in mallards (Anas platyrhynchos) from the Netherlands. J. Wildl. Dis. 25(2), 297–9.
Ma, W. (1989) Effect of soil pollution with metallic lead pellets on lead bioaccumulation and organ/body weight alternations in small mammals. Arch. Environ. Contam. Toxicol. 18, 617–22.
MacDonald, J.W., Randall, C.J., Ross, H.M., Moon, G.M. and Ruthven, A.D. (1983) Lead poisoning in captive birds of prey. Vet. Rec. 113, 65–6.
MacInnes, C.D., Davis, R.A., Jones, R.N., Lieff, B.C. and Pakulak, A.J. (1974) Reproductive efficiency of McConnell River small Canada geese. J. Wildl. Manag. 38, 686–707.
Marchington, J. (1994) Plastic Fanatastic? Shooting Times and Country Magazine. December 1–7. 2 pp.
Morehouse, K. (1992) Lead poisoning of migratory birds: the US Fish and Wildlife Service Position. In D.J. Pain (ed) Lead Poisoning in Waterfowl. pp. 51–5. IWRB Spec. Publ. 16, Slimbridge, UK.
Morehouse, K. (1992b) Crippling loss and shot-type. The United States Experience. In D.J. Pain (ed) Lead Poisoning in Waterfowl. pp. 32–7. IWRB Spec. Publ. 16, Slimbridge, UK.
Mudge, G.P. (1983) The incidence and significance of ingested lead pellet poisoning in British wildfowl. Biol. Conserv. 27, 333–72.
Murdy, R. (1952) Hunting pressure determined by x-ray. South Dakota Conservation Digest 19, 2–5.
Nature Conservancy Council (1981) Lead poisoning in swans. Report of the NCC's working group. NCC, London.
Nordic Council of Ministers (1994) Opportunities and costs of substituting lead. Final Draft. August 1994. 53 pp.
Ochiai, K., Hoshiko, K., Jin, K., Tsuuzuki, T. and Itakura, C. (1993) A survey of lead poisoning in wild waterfowl in Japan. J. Wildl. Dis. 29, 349–52.
OECD (1993) Risk Monograph No. 1: Lead. OECD Environment Directorate, Paris. 277 pp.
O'Halloran, J., Myers, A.A. and Duggan, P.F. (1988) Lead poisoning in swans and sources of contamination in Ireland. J. Zool. Lond. 216, 211–23.
Ordija, V. (1993) Lessons from Lordship. In National Shooting Range Symposium Proceedings. October 17–19. Salt Lake City, Utah. pp. 73–9.
Osweiler, G.D., van Gelder, G.A. and Buck, W.B. (1978) Epidemiology of lead poisoning in animals. In F.W. Oehme (ed). Toxicity of Heavy Metals in the Environment. pp. 143–71. Marcel Dekker, New York.
Pain, D.J. (1990) Lead shot ingestion by waterbirds in the Camargue, France: an investigation of levels and interspecific differences. Environ. Pollut. 66, 273–85.
Pain, D.J. (1992) Lead poisoning of waterfowl: a review. In D.J. Pain (ed) Lead Poisoning in Waterfowl. pp. 7–13. IWRB Spec. Publ. 16, Slimbridge, UK.
Pain, D.J. and Amiard-Triquet, C. (1993) Lead poisoning of raptors in France and elsewhere. Ecotox. Environ. Safety 25, 183–92.
Pain, D.J., Amiard-Triquet, C., Bavoux, C., Burneleau, G., Eon, L. and Nicolau-Guillaumet, P. (1993) Lead poisoning in wild populations of marsh harriers (Circus aeruginosus) in the Camargue and Charente-Maritime, France. Ecotox. Environ. Safety 135, 379–86.
Pain, D.J., Sears, J. and Newton, I. (1994) Lead concentrations in birds of prey in Britain. Environ. Pollut. 87, 173–80.
Perry, M.C. and Geissler, P.H. (1980) Incidences of embedded shot in canvasbacks. J. Wildl. Manag. 44, 888–94.
Peterson, S., Kim, R. and Moy, C. (1993) Ecological risks of lead contamination at a gun club: Waterfowl exposure via multiple dietary pathways. Prepared for Society of Environmental Toxicology and Chemistry. Ecology and Environment Inc. San Francisco, California. 12 pp.
Platt, J.B. (1976) Bald eagles wintering in the Utah desert. Amer. Birds 30, 783–8.
Pokras, M.A. and Chafel, R. (1992) Lead toxicosis from ingested fishing sinkers in adult common loons (Gavia immer) in New England. J. Zoo Wildl. Med. 23, 92–7.
Pokras, M.A., Rohrbach, S., Press, C., Chafel, R., Perry, C. and Burger, J. (1992) Environmental pathology of 124 Common Loons from the northeastern United States. In L. Morse, S. Stockwell and M. Pokras (eds) The Loon and Its Ecosystem. Status, Managment and Environmental Concerns. American Loon Conference Proceedings. pp. 20–53. Bar Harbor, Maine.
Reece, R.L., Dickson, D.B. and Burrows, P.J. (1986) Zinc toxicity (new wire disease) in aviary birds. Aust. Vet. J. 63, 199.
Rice, D.A., McLoughlin, M.F., Blanchflower, W.J. and Thompson, T.R. (1987) Chronic lead poisoning in steers eating silage contaminated with lead shot — diagnostic criteria. Bull. Environ. Contam. Toxicol. 39, 622–9.
Roscoe, D.E., Widjeskog, L. and Stansley, W. (1989) Lead poisoning of northern pintail ducks feeding in a tidal meadow contaminated with shot from a trap and skeet range. Bull. Environ. Contam. Toxicol. 42, 226–33.
Sporting Arms and Ammunition Manufacturing Institute (SAAMI) (1993) Summary of Relevant Case Law Relating to Shooting Ranges. Sporting Arms and Ammunition Manufacturing Institute, Newtown, Connecticutt. 12 pp.
Sanderson, G.C. and Bellrose, F.C. (1986) A review of the problem of lead poisoning in waterfowl. Ill. Nat. Hist. Surv. Spec. Publ. 4, 1–34.
Sanderson, G.C., Wood, S.G., Foley, G.L. and Brawn, J.D. (1992) Toxicity of bismuth shot compared with lead and steel shot in game farm mallards. Trans. N. Amer. Wildl. Nat. Res. Conf. 57, 526–40.
Scheuhammer, A.M. (1987) The chronic toxicity of aluminium, cadmium, mercury, and lead in birds: a review. Environ. Pollut. 46, 263–95.
Scheuhammer, A.M. and Norris, S.L. (1995) A review of the environmental impacts of lead shotshell ammunition and lead fishing weights in Canada. Canadian Wildlife Service Occas. Paper No. 88, 52 pp. Ottawa, Canada.
Scheuhammer, A.M. and Dickson, K.M. (1996) Patterns of environmental lead exposure in waterfowl in eastern Canada. Ambio, 25, 14–20.
Schmitz, R.A., Aquirre, A.A., Cook, R.S. and Baldassane, G.A. (1990) Lead poisoning of Caribbean flamingos in Yucetan, Mexico, Wildl. Soc. Bull. 18, 399–404.
Sever, C. (1993) Lead and Outdoor Ranges. In National Shooting Range Symposium Proceedings. Salt Lake City, Utah. October 17–19. pp. 87–94.
Tanskanen, H., Kukkonen, J. and Kaija, J. (1991) Heavy metals pollution in the environment of a shooting range. In S. Autio (ed) Current Research 1989–1990. pp. 187-93. Geological Survey of Finland. Spec.
United States Environmental Protection Agency (USEPA) (1994) Lead fishing sinkers; response to citizens' petition and proposed ban; proposed rule. Federal Register. Part III. Vol 40, Part 745. Wednesday March 9. pp. 11121-43.
United States Fish and Wildlife Service (USFWS) (1986) Use of Lead Shot for Hunting Migratory Birds in the United States. Final Supplemental Environmental Impact Statement. US Dept. Inter., Fish and Wildl. Serv. Washington, D.C.
United States Fish and Wildlife Service (USFWS) (1994) Migratory bird hunting; decision on the conditional approval of bismuth-tin shot as non-toxic for the 1994–95 season. Federal Register Vol. 60, No. 1, Part 20. January 3. pp. 61–4.
Yurdin, B.J. (1993) An investigation of Lake Michigan sediment at the Lincoln Park Gun Club, Chicago, Illinois. Watershed Unit, Permit Section. Division of Water Pollution Control, Illinois Environmental Protection Agency. 40 pp.
Zdziarski, J.M., Mattix, M., Bush, R.M. and Montali, R.J. (1994) Zinc toxicosis in diving ducks. J. Zoo and Wildl. Med. 25, 438–45.