Effects of Pollution on Freshwater Aquatic Organisms

Abstract

This review includes papers published during 2002 that were associated with effects of pollutants in the water column on various aquatic organisms. Effects of pollutants primarily sequestered in sediments in the freshwater environment, and effects of pollutants in the marine environment are not reported here.Attempts were made to include reports that represented a wide variety of freshwater life forms in various stages of development.The review is divided into major sections that include responses from exposure to specific complex chemicals, effects to organisms from exposure to specific metals, and effects on aquatic organisms and aquatic systems associated with less specific water quality degradation from various pollution sources such as effluents or mining operations. Complex ChemicalsBiological responses to environmental estrogens and estrogen mimics in water were evaluated through studies that exhibited a range of biological response measures. Exposure to 17 ß -estradiol was reported to cause disruption of male reproductive behavior in threespined stickleback (Wibe et al., 2002a), and alterations in gonopodial development and sexual behavior in mosquitofish (Doyle and Lim, 2002). Exposure to 17 alpha-ethinylestradiol was

Efficient removal of high- or low-concentration copper ions using diethylenetriamine-grafted electrospun polyacrylonitrile fibers

“…In recent years, global water pollution is common and water pollution poses a serious threat to ecosystems and human health. [1][2][3][4] Especially, heavy metal ions (e.g., As 2+ , Gd 2+ , Zn 2+ , Cr 3+ , Cu 2+ , and Pb 2+ ) are present in the pollution source and most of these heavy metal ions are toxic and highly accumulative and can enter organisms through bioconcentration of the food chain, [5][6][7][8][9] making the protein and various enzymes in the organism react to make it inactive and even cause poisoning, leading to irreversible damages to the organism. 10,11 In particular, there is a wide range of heavy metal copper sources, such as slag tailings.…”