Estimation of the bulk atmospheric deposition of major and trace elements to a rural watershed

Despite the existence of many reports on the background deposition of contaminants in remote areas, very little is known about the total aerial inputs of major and trace elements to the entire surface of rural watersheds. In this work, the influence of the contribution from local nonpoint-sources of...

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Bibliographic Details
Published in:Atmospheric environment (1994) 1998-05, Vol.32 (9), p.1473-1483
Main Authors: Gélinas, Yves, Schmit, Jean-Pierre
Format: Article
Language:English
Subjects:
Atmospheric bulk deposition
Freshwater
major and trace element
multielemental analysis
resuspension
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Summary:Despite the existence of many reports on the background deposition of contaminants in remote areas, very little is known about the total aerial inputs of major and trace elements to the entire surface of rural watersheds. In this work, the influence of the contribution from local nonpoint-sources of emission or resuspension (e.g. agricultural soil and road dust resuspension, direct emission from vehicle use, and small towns) on the background regional fluxes was evaluated in a small rural watershed of southern Quebec (Canada). A seasonal pattern was found for the background deposition of 28 major and trace elements, with spring and fall maxima as well as winter and midsummer minima mostly owing to agricultural practices and weather. The contribution from the Greater Montreal area, located 30 km to the west, was
ISSN:1352-2310
1873-2844
DOI:10.1016/S1352-2310(97)00380-4