DISTRIBUTION OF PB BETWEEN SEDIMENTS AND PORE WATER IN WOODS LAKE, ADIRONDACK-STATE-PARK, NEW-YORK, USA

被引：20

作者：

DAVIS, A

GALLOWAY, JN

机构：

[1] PTI Environmental Services, Boulder, CO 80303, 2995 Baseline Road

[2] University of Virginia, Department of Environmental Sciences, Charlottesville

来源：

APPLIED GEOCHEMISTRY | 1993年 / 8卷 / 01期

关键词：

D O I：

10.1016/0883-2927(93)90056-M

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Interstitial water samples and sediments were collected from acidified Woods Lake (pH = 5.0) to evaluate Pb profile stability and distribution between the solid and aqueous phases. A simple equation was developed to describe the distribution coefficient for Pb (Kd(Pb)), based on the sample moisture content and analyte concentrations in bulk sediment and pore water. In Woods Lake sediment Kd(Pb) values ranged from 6.7 x 10(4) to 6.7 x 10(5) ml/g. The affinity of Pb for the solid phase was further demonstrated by inverting a sediment core and leaving it for 10 months in situ. Upon retrieval, the Pb profile was found to have remained intact over the same depth, albeit inverted, as in the surrounding sediment. Geochemical modeling using MINTEQA2 demonstrates that Pb solids that may reasonably be expected to precipitate were all undersaturated by several orders of magnitude with respect to the interstitial water, indicating that Pb was sorbed to, rather than precipitated in, Woods Lake sediment.

引用

页码：51 / &

共 51 条

[21]

Dean, Determination of carbonate and organic matter in calcareous sediments and sedimentary rocks by loss on ignition: comparison with other methods, J. Sediment Petrol., 44, pp. 242-248, (1974)

[22]

Delos, Richardson, De Pinto, Ambrose, Rodgers, Rygwelski, St John, Shaughnessy, Faha, Christie, Technical Guidance Manual for Performing Waste Load Allocations, Book II. Streams and Rivers, Chap. 3, Toxic Substances, EPA-440/4-84-022, (1984)

[23]

Environmental Monitoring and Support Laboratory, Methods for chemical analysis of water and wastes, (1978)

[24]

Felmy, Girvin, Jenne, MINTEQ—a computer program for calculating aqueous geochemical equilibria: final project report, EPA 68-03-3089, (1984)

[25]

Galloway, Banning, Del Prete, Heit, Davis, A summary of observations from the investigation of the sediments of Panther, Sagamore and Woods Lakes, The Integrated Lake-watershed Acifidication Study: Proceedings of the ILWAS Annual Review Conference, (1983)

[26]

Galloway, Likens, Atmospheric enhancement of metal deposition in Adirondack lake sediments, Limnol. Oceanogr., 24, pp. 427-433, (1979)

[27]

Galloway, Schofield, Hendrey, Peters, Johannes, Sources of acidity in three lakes acidified during snow melt, Ecological Impact of Acid Precipitation, pp. 264-268, (1980)

[28]

Galloway, Schofield, Hendrey, Peters, Johannes, Lake acidification during spring snowmelt: processes and causes, The Integrated Lake-watershed Acidification Study: Proceedings of the ILWAS Annual Review Conference, (1983)

[29]

Gubala, Driscoll, Newton, Schofield, Chemistry of a near-shore lake region during spring snowmelt, Environ. Sci. Tech., 25, pp. 2024-2030, (1991)

[30]

Kinniburgh, Jackson, Syers, Adsorption of alkaline earth transition and heavy metal cations by hydrous oxide gels of iron and aluminum, Soil Science Society of America Journal, 40, pp. 796-799, (1976)

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