Abstract
Concentrations of methyl mercury (MeHg) and total mercury (THg) in precipitation were measured at the Experimental Lakes Area (ELA), a remote field station in northwestern Ontario. We found that precipitation was a source of both MeHg and THg to boreal ecosystems, but at lower rates than in industrialized regions of North America and Scandinavia. MeHg concentrations in precipitation ranged from 0.010 to 0.179 ng L−1 and were highest when events originated west of the ELA. THg concentrations in precipitation ranged from 0.95 to 9.31 ng L−1 and were highest when the events came from the southeast. There was no relationship between THg and MeHg over time in precipitation. Inputs of both MeHg and THg to ecosystems were highest during summer months.
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References
Anonymous: 1994,Expert panel on mercury atmospheric processes. EPRI report No. TR-104214.
Barrie, L., Ahier, B., Bottenheim, J., Niki, H., Nriagu, J.: 1992,Atmosph. Environ. 26A, 907–925
Bloom, N. S.: 1989,Can. J. Fish. Aquat. Sci. 46, 1131–1140.
Bloom, N. S., Crecelius, E. A.: 1983,Mar. Chem. 14, 49–59.
Bloom, N. S., Horvat, M.: (this issue),Water, Air, and Soil Pollut.
Bloom, N. S., Watras, C. J.: 1989,Sci. Total Environ. 87/88, 199–207.
Brosset, C.: 1982,Water, Air, and Soil Pollut. 17, 37–50.
Driscoll, C. T., Scolfield, C. L., Munson, R., Holsapple, J.: 1994, Environ. Sci. Technol.28, 136–143.
Edgington, E. S.: 1987,Randomization tests, 2nd ed. M. Bekker, Inc., New York.
Fitzgerald, W. F., Mason, R. P., Vandal, G. M.: 1991,Water, Air, and Soil Pollut. 56, 745–767.
Hecky, R. E., Ramsay, D. J., Bodaly, R. A., and Strange, N. E.: 1991, In: Advances in Mercury Toxicology (T. Suzukiet al., eds.) Plenum Press, New York.
Hultberg, H., Iverfeldt, A.: 1992, Abstract. Accumulation and output of methylmercury from forested catchments in southwestern Sweden. International Conference on Mercury as a Global Pollutant. 31 May –4 June 1992, Monterey, California.
Hultberg, H., Iverfeldt, A., Lee, L.-H.: 1994 (In press),Mercury as a Global Pollutant — Toward Integration and Synthesis. Watras and Huckabee Eds., Lewis Publishers.
Iverfeldt, A.: 1991,Water, Air, and Soil Pollut. 56, 251–265.
Iverfeldt, A., Munthe, J., Pacyna, J., Brosset, C.: 1994, Abstract. Long-term changes in concentrations and deposition of atmospheric mercury over Scandinavia. International Conference on Mercury as a Global Pollutant. 10 –14 July 1994, Whistler, British Columbia.
Johanssen, K., Aastrup, M., Anderson, A., Bringmark, L., Iverfeldt, A.: 1991,Water, Air, and Soil Pollut. 56, 267–281.
Lee, Y.-H., Iverfeldt, A.: 1991,Water, Air, and Soil Pollut. 56, 309–321.
Mason, R. P., Fitzgerald, W. F., Vandal, G. M.: 1992,J. Atmosph. Chem. 14:489–500.
Mierle, G.: 1990,Environ. Toxicol. Chem. 9, 843–851.
Munthe, J., Iverfelt, A.: 1994 (In press),Mercury as a Global Pollutant — Toward Integration and Synthesis. Watras and Huckabee Eds., Lewis Publishers.
Parks, J. W., Lutz, A., Sutton, J. A.: 1989,Can J. Fish. Aquat. Sci. 46, 2184–2202.
Rudd, J. W. M., Turner, M. A., Furutani, A., Swick, A., Townsend, B. E.: 1983,Can. J. Fish. Aquat. Sci. 40, 2206–2217.
Rudd, J. W. M.: (this issue),Water, Air, and Soil Pollut.
St. Louis, V. L., Rudd, J. W. M., Kelly, C. A., Beaty, K. G., Bloom, N. S., Flett, R. J.: 1994a.Can. J. Fish. Aquat. Sci. 51, 1065–1076.
St.Louis, V. L., Rudd, J. W. M., Kelly, C. A., Roulet, N. T., Heyes, A., Beaty, K. G., Bloom, N. S., Flett, R. J.: 1994b, Abstract. Mass-balance budgets of methyl mercury in two unperturbed boreal forest wetlands. International Conference on Mercury as a Global Pollutant. 10–14 July 1994, Whistler, British Columbia.
Vandal, G. M., Fitzgerald, W. F., Boutron, C. F., Candelone, J. P.: 1992, Abstract. Mercury in ancient ice and recent snow from the Antarctic. International Conference on Mercury as a Global Pollutant. 31 May –4 June 1992, Monterey, California.
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Contribution No. 6 of the Experimental Lakes Area Reservoir Project (ELARP)
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St.Louis, V.L., Rudd, J.W.M., Kelly, C.A. et al. Wet deposition of methyl mercury in northwestern Ontario compared to other geographic locations. Water Air Soil Pollut 80, 405–414 (1995). https://doi.org/10.1007/BF01189690
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DOI: https://doi.org/10.1007/BF01189690