By Mira Petrovic, Sergi Sabater, Arturo Elosegi, Damià Barceló
This quantity bargains an outline of the prevalence of rising natural contaminants in Mediterranean rivers and their relevance to their chemical and ecological caliber less than water shortage. With chapters overlaying the results lower than a number of rigidity stipulations of prescribed drugs, polar insecticides, own care items, and commercial chemical substances, the observations provided will be acceptable to different components of the realm the place water shortage is a controversy. it's of curiosity to environmental chemists, ecologists, environmental engineers, and ecotoxicologists, in addition to water managers and decision-makers.
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Additional info for Emerging Contaminants in River Ecosystems: Occurrence and Effects Under Multiple Stress Conditions
2 Prioritization of Water and Sediment Pollutants . . . . . . . . . . . . . . . . . . . 5 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 35 37 37 38 38 39 40 41 43 43 1 Introduction Chemical pollution of aquatic ecosystems is one of the major threats to aquatic life biodiversity and human health .
The site-specific risk was expressed as the logarithm of the sum of individual toxic units (Eq. 2): n X TUSITE ¼ log TUi ð4Þ i¼1 where TUi is the toxic unit of each of individual compounds at the site. Furthermore, the thresholds for effects in ecosystems were set as proposed in the study by Malaj et al. . Acute risk threshold of TU ! À1, corresponding to 1/10 of the EC50 or LC50 of all three standard test species, was chosen due to the fact that changes in biological communities exposed to this level of pollution were observed [28–30].
28 29 30 32 M. Kuzmanovic and A. es M. Petrovic Catalan Institute for Water Research (ICRA), Emili Grahit 101, 17003 Girona, Spain ICREA, Passeig de Lluis Companys 23, 08010 Barcelona, Spain D. Barcelo Water and Soil Quality Research Group, Department of Environmental Chemistry, IDAEA, CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain Catalan Institute for Water Research (ICRA), Emili Grahit 101, 17003 Girona, Spain M. Petrovic et al. 1007/698_2015_5016, © Springer International Publishing Switzerland 2015, Published online: 8 January 2016 27 28 M.