Comparison Between Two Submerged Macrophytes as Biomonitors of Trace Elements Related to Anthropogenic Activities in the Ctalamochita River, Argentina.

The temporal variation of As, Co, Cr, Cu, Fe, Mn, Ni, Pb, V and Zn in surface waters and sediments, and trace element accumulation and physiological changes in the macrophytes Stuckenia filiformis and Potamogeton pusillus, were estimated in the Ctalamochita River, Argentina, both upstream and downstream of Río Tercero. Chromium, Fe, Pb and Zn in surface water were higher at the downstream site, while Cu and Mn were higher upstream. Chromium, Mn and Zn in S.