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Measurements of Cd, Cu, Pb and Zn in the lower reaches of major Eurasian arctic rivers using trace metal clean techniques |
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| Authors: | Christopher KH Guay Alexander V Zhulidov Daniel A Zhulidov Robert M Holmes John V Headley |
| Institution: | a Pacific Marine Sciences and Technology, 3503 Lakeshore Avenue, Suite 5, Oakland, CA 94610, USA b South Russian Regional Centre for Preparation and Implementation of International Projects (CPPI-S), 200/1 Stachki Av., No. 301, Rostov-on-Don 344090, Russia c UNEP GEMS/Water Programme, c/o National Water Research Institute, National Hydrology Research Centre, 11 Innovation Blvd., Saskatoon, Saskatchewan S7N 3H5, Canada d The Ecosystems Center, Marine Biological Laboratory, 7 MBL Street, Woods Hole, MA 02543, USA e Aquatic Ecosystem Protection Research Branch, National Water Research Institute, National Hydrology Research Centre, 11 Innovation Blvd., Saskatoon, Saskatchewan S7N 3H5, Canada |
| Abstract: | Concentrations of dissolved and particulate Cd, Cu, Pb and Zn were determined in samples collected in summer 1998 from the lower reaches of six major Eurasian arctic rivers: the Onega, Severnaya Dvina, Mezen, Pechora, Ob and Yenisey. These data comprise some of the earliest measurements of trace metals in Eurasian arctic rivers above the estuaries using recognized clean techniques. Significant (α = 0.05) differences were observed among mean concentrations of particulate metals in the individual rivers (F ≤ 0.006), with highest levels overall observed in the Severnaya Dvina and Yenisey. No significant differences were observed among mean concentrations of dissolved metals in the individual rivers (F = 0.10-0.84). Contributions from anthropogenic sources are suggested by comparison of trace metal ratios in the samples to crustal abundances. These results establish a baseline for assessing future responses of Eurasian arctic river systems to climate-related environmental changes and shifting patterns of pollutant discharge. |
| Keywords: | Arctic Russia River water Heavy metals Trace elements |
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