Oxyanion Concentrations in Eastern Sierra Nevada Rivers – 2. Arsenic and Phosphate
Tóm tắt
Water samples were collected from the Truckee River-Pyramid Lake system, the Walker River-Walker Lake system, and the Carson River, all located in eastern California and western Nevada, U.S.A., at three different times (i.e., summer 1991, spring 1992, and autumn 1992) over a two year period. The concentrations of As, Na, Cl, ΣPO4, and pH were measured in these river samples and the associated terminal lakes. Arsenic values ranged from below 13 nmol/kg near Truckee, California to 160 nmol/kg at Nixon, Nevada in the Truckee River, from 40 nmol/kg in the headwaters of both West and East Walker Rivers to 270 nmol/kg below Weber Reservoir on the main branch of the Walker River, and from <27 nmol/kg to 234 nmol/kg for the lower Carson River system. Arsenic concentrations in Steamboat Creek (0.91 μmol/kg–1.80 μmol/kg) in the Truckee River catchment are above the U.S. EPA drinking water maximum contaminant level of 0.67 μmol/kg, as are the As concentrations in both Pyramid Lake (1.33 μmol/kg–1.57 μmol/kg ) and Walker Lake (13.7 μmol/kg–18.7 μmol/kg). Sources of As for all three rivers include weathering of As-rich rocks and/or regolith and input of high-As geothermal spring waters, both processes primarily, although not exclusively, adding As to the headwater regions of these rivers. Steamboat Hot Springs (29 μmol/kg ≤ As ≤ 54.5 μmol/kg), for example, is identified as a source of As to the Truckee River via Steamboat Creek. The high As concentrations in Pyramid and Walker Lakes are likely due to (1) desorption of arsenate from aquatic particulate matter in these high pH waters (9.0 ≤ pH ≤ 9.5), (2) limited biologic uptake of arsenate, and (3) evaporative concentration of the lake waters. Evaluation of molar ΣPO4}/As ratios of river waters and geothermal spring waters (e.g., Steamboat Hot Springs), indicates that phosphate is substantially enriched in Steamboat Creek as well as the mid to lower reaches of the Walker and Carson Rivers. These regions of each river are dominated by agricultural interests and, additionally, in the case of Steamboat Creek, residential areas and golf courses. Our data strongly imply that phosphate-rich agricultural return flow has likely added P to these streams and, consequently, increased their respective P:As ratios.
Tài liệu tham khảo
Anbar A. D., Creaser R. A., Papanastassiou D. A., and Wasserburg G. J. (1992) Rhenium in seawater: Confirmation of generally conservative behavior, Geochim. Cosmochim. Acta 56, 4099–4103.
Anderson L. C. D. and Bruland K. W. (1991) Biogeochemistry of arsenic in natural waters: The importance of methylated species, Environ. Sci. Tech. 25, 420–427.
Andreae M. O. (1977) Determination of arsenic species in natural waters, Anal. Chem. 49, 820–823.
Andreae M. O. (1980) Arsenic in rain and the atmospheric mass balance of arsenic, J. Geophys. Res. 85, 4512–4518.
Andreae M. O. and Klumpp D. (1979) Biosynthesis and release of organoarsenic compounds by marine algae, Environ. Sci. Technol. 13, 738–741.
Benson L. V. (1984) Hydrochemical data for the Truckee River drainage system. U.S. Geol. Surv. Open File Rep. 84–0440.
Benson L. V. and Leach D. L. (1979) Uranium transport in the Walker River Basin, California and Nevada, J. Geochem. Explor. 11, 227–248.
Benson L. V. and Spencer R. J. (1983) A hydrochemical reconnaissance of the Walker River basin, California and Nevada, U. S. Geol. Surv. Open File Rep. 83–0740.
Benson L. V. and Thompson R. S. (1987) Lake-level variation in the Lahontan Basin for the past 50,000 years, Quat. Res. 28, 69–85.
Bowell, R. J. (1994) Sorption of arsenic by iron oxides and oxyhydroxides in soils, Appl. Geochem. 9, 279–296.
Brewer, P. G. (1975) Minor elements in seawater, In: J. P. Riley and G. Skirrow (eds.), Chemical Oceanography, Vol. 1, Academic Press, London, pp. 415–496.
Clement W. H. and Faust S. D. (1981) The release of arsenic from contaminated sediments and muds, J. Environ. Sci. Health A16, 87–122.
Colodner D., Sachs J., Ravizza G., Turekian K., Edmond J. and Boyle E. A. (1993) The geochemical cycle of rhenium: a reconnaissance. Earth Planet. Sci. Lettr. 117, 205–221.
Cutter G. A. (1992) Kinetic controls on metalloid speciation in seawater, Mar. Chem. 40, 65–80.
Cutter G. A. and Bruland K. W. (1984) The marine biogeochemistry of selenium: A re-evaluation. Limnol. Oceanogr. 29, 1179–1192.
Deverel S. J., and Millard S. P. (1988) Distribution and mobility of selenium in shallow groundwater of the western San Joaquin Valley, California. Environ. Sci. Tech. 22, 697–702.
DeVitre R., Belzile N., and Tessier A. (1991) Speciation and adsorption of arsenic on diagenetic iron oxyhydroxides, Limnol. Oceanogr. 36, 1480–1485.
Domagalski J. L., Eugster H. P., and Jones B. F. (1990) Trace metal geochemistry of Walker, Mono and Great Salt Lakes, in R. J. Spencer and I.-M. Chou (eds.), Fluid-Mineral Interactions: A Tribute to H. P. Eugster. The Geochemical Society Spec. Publ. 2, 315–354.
Doyle G. A., Lyons W. B., Miller G. C., and Donaldson S. (1995) Oxyanion concentrations in eastern Sierra Nevada rivers — 1. Selenium, Appl. Geochem. 10, 553–564.
Eisler R. (1988) Arsenic hazards to fish, wildlife and invertebrates: A synoptic review, U.S. Fish and Wildlife Service Contaminant Hazard Reviews Rpt. No. 12.
Eugster H. P. and Hardie L. A. (1978) Saline lakes, In: A. Lerman (ed.), Lakes & Chemistry, Geology and Physics Springer-Verlag, New York, pp. 237–293.
Fox L. E. (1989) A model for inorganic controls of phosphate concentrations in river waters. Geochim. Cosmochim. Acta 53, 417–428.
Fuller C. C. and Davis J. A. (1989) Influence of coupling of sorption and photosynthetic processes on trace element cycles in natural waters. Nature 340, 52–54.
Fuller C, C., Davis J. A., and Waychunas G. A. (1993) Surface chemistry of ferrihydrite: Part 2. Kinetics of arsenate adsorption and coprecipitation, Geochim. Cosmochim. Acta 57, 2271–2282.
Galat D. L. (1990) Seasonal and long-term trends in Truckee River nutrient concentrations and loadings to Pyramid Lake, Nevada: A terminal saline lake, Water Res. 24, 1031–1040.
Galat D. L., Lider E. L., Vigg S., and Robertson S. R. (1981) Limnology of a large, deep, North American terminal lake, Pyramid Lake, Nevada, U.S.A., Hydrobiol. 82, 281–317.
Garcia K. T., Gortsema G. C., Pennington R. N., and Preissler A. M. (1992) Water resources data Nevada water year 1991, U. S. Geol. Surv. Water Data Rept. NV–91–91.
Hamilton-Galat K. and Galat D. L. (1983) Seasonal variation of nutrients, organic carbon, ATP and microbial standing crop in a vertical profile of Pyramid Lake, Nevada, Hydrobiol. 105, 27–43.
Hess D. L., Mello K. A., Sexton R. J., and Young R. L. (1993) Water resources data, Nevada, water year 1992, U. S. Geol. Surv. Water — Data Rpt. NV–92–1.
Hingston F. J., Atkinson R. J., Posner A. M., and Quirk J. P. (1967) The specific adsorption of anions, Nature 215, 1459–1461.
Hodge V. F., Johannesson K. H., and Stetzenbach, K. J. (1996) Rhenium, molybdenum, and uranium in groundwater from the southern Great Basin, USA: Evidence for conservative behavior, Geochim. Cosmochim. Acta 60, 3197–3214.
Johannesson K. H., Maest A. S., and Lyons W. B. (1992) Oxyanion concentration mechanisms in eastern Sierra Nevada surface waters, in C. A. Hall, Jr., V. Doyle-Jones, and B. Widawski (eds.), The History of Water: Eastern Sierra Nevada, Owens Valley, White-Inyo Mtns. White Mtn. Res. Station Symp. Vol. 4, 348–366.
Johannesson K. H., Stetzenbach K. J., Kreamer D. K., and Hodge V. F. (1996) Multivariate statistical analysis of arsenic and selenium concentrations in groundwaters from south-central Nevada and Death Valley, California, J. Hydrol. 178, 181–204.
Kharaka Y. K., Robinson S. W., Law L. M., and Carothers W. W. (1984) Hydrogeochemistry of Big Soda Lake, Nevada: An alkaline meromictic desert lake, Geochim. Cosmochim. Acta 48, 823–835.
Koening J. B. (1963) Geologic Map of California, Walker Lake Sheet. California Division of Mines and Geology.
Kuhn A. and Sigg L. (1993) Arsenic cycling in eutrophic Lake Greifen, Switzerland: Influence of seasonal redox processes, Limnol. Oceanogr. 38, 1052–1059.
Lebo M. E., Reuter J. E., Rhodes C. L., and Goldman C. R. (1992) Nutrient cycling and productivity in a desert saline lake: Observations from a dry, low-productivity year, Hydrobiol. 246, 213–229.
Lebo M. E., Reuter J. E., and Meyers P. A. (1994) Historical changes in sediments of Pyramid Lake, Nevada, USA: Consequences of changes in the water balance of a terminal desert lake, J. Paleolimnol. 12, 87–101.
Maest A. S., Pasilis S. P., Miller L. G., and Nordstrom D. K. (1992) Redox geochemistry of arsenic and iron in Mono Lake, California, USA, in Y. Kharaka and A. S. Maest (eds.), Water-Rock Interaction Balkema, pp. 507–511.
Martin J.-M. and Whitfield (1983) The significance of the river input of chemical elements to the ocean, in C. S. Wong, E. Boyle, K. W. Bruland, J. D. Burton, and E. D. Goldberg (eds.), Trace Metals in Sea Water, Plenum, New York, pp. 265–296.
Masscheleyn P. H., Delaune R. D., and Patrick W. H., Jr. (1991) Arsenic and selenium chemistry as affected by sediment redox potential and pH, J. Environ. Qual. 20, 522–527.
Middelburg J. J., Hoede D., Van Der Sloot H. A., Van Der Weijden C. H., and Wijkstra J. (1988) Arsenic, antimony and vanadium in the North Atlantic Ocean, Geochim. Cosmochim. Acta 52, 2871–2878.
Mok W. M. and Wai C. M. (1990) Distribution and mobilization of arsenic and antimony species in Coeur D'Alene River, Idaho, Environ. Sci. Tech. 24, 102–108.
Nehring N. L. (1980) Geochemistry of Steamboat Springs, Nevada. U. S. Geol. Surv. Open File Rep. 80–887.
Reuter J. E., Rhodes C. L., Lebo M. E., Kotzman M., and Goldman C. R. (1993) The importance of nitrogen in Pyramid Lake (Nevada, USA), a saline, desert lake, Hydrobiol. 267, 170–189.
Rowe T. G., Lico M. S., Hallock R. J., Maest A. S., and Hoffman R. J. (1991) Physical, chemical and biological data for detailed study of irrigation drainage in and near Stillwater, Fernley and Humboldt Wildlife Management Areas and Carson Lake, West-Central Nevada, 1987–89, U. S. Geol. Surv. Open File Rpt. 91–185.
Sanders J. G. and Windom H. L. (1980) The uptake and reduction of arsenic species by marine algae, Estuarine Coastal. Mar. Sci. 10, 555–567.
Seyler P. and Martin J. M. (1990) Distribution of arsenite and total dissolved arsenic in major French estuaries: Dependence on biogeochemical processes and anthropogenic inputs, Mar. Chem. 29, 277–294
Smedley P. L., Edmunds W. M., and Pelig-Ba K. B. (1996) Mobility of arsenic in groundwater in the Obuasi gold-mining area of Ghana: some implications for human health, In J. D. Appleton, R. Fuge, and G. J. H. McCall (eds.), Environmental Geochemistry and Health. Geol. Soc. Spec. Pub. No. 113, London, pp. 163–181.
Spencer R. J. (1977) Silicate and carbonate sediment-water relationships in Walker Lake, Nevada, M. S. Thesis, University of Nevada, Reno.
Stewart J. H. and Carlson J. E. (1978) Geologic Map of Nevada. Nevada Bureau of Mines and Geology.
Thanabalasingam P. and Pickering W. F. (1986) Arsenic sorption by humic acids, Environ. Pollut. 12, 233–246.
Wastenchuk D. G. and Windom H. L. (1978) Factors controlling the estuarine chemistry of arsenic. Est. Coastal Mar. Sc. 7, 455–464.
Wedepohl K. H. (1995) The composition of the continental crust, Geochim. Cosmochim. Acta 59, 1217–1232.
Welch A. H. and Lico M. S. (1988) Aqueous geochemistry of ground water with high concentrations of arsenic and uranium, Carson River Basin, Nevada, Chem. Geol. 70, 19.
Welch A. H., Lico M. S., and Hughes J. L. (1988) Arsenic in ground water of the western United States, Ground Water 26, 333–347.
Williams M. W. and Melack J. M. (1991) Solute chemistry of snowmelt and runoff in an alpine basin, Sierra Nevada, Water Resour. Res. 27, 1575–1588.