Temporal and spatial variations in the concentration and transport of Pb were observed in acidic Darts Lake (Adirondack State Park, NY). Vertical deposition of Pb through the water column was most pronounced during stratification periods (winter and summer), while during high flow (spring and autumn) Pb was more conservative within the lake. Deposition of particulate Pb was strongly correlated with Al and organic carbon deposition. Increases in metal (Pb and Al) deposition occurred during periods of increasing pH. It appears that in-lake formation of particulate Al enhances the vertical transport of Pb in Darts Lake.
ASJC Scopus subject areas
- Environmental Chemistry