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Environmental impacts and metal exposure of aquatic ecosystems in rivers contaminated by small scale gold mining: the Puyango River basin, southern Ecuador

✍ Scribed by N.H Tarras-Wahlberg; A Flachier; S.N Lane; O Sangfors

Book ID: 117255360
Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 839 KB
Volume: 278
Category: Article
ISSN: 0048-9697
DOI: 10.1016/s0048-9697(01)00655-6

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## Abstract The suspended sediment yield and the transfer of polluted sediment are investigated for the Puyango river basin in southern Ecuador. This river system receives metal (Cd, Cu, Hg, Pb and Zn) and cyanide pollution generated by mining, and is associated with large‐scale hydrological variab