Chronic toxicity of the Sava River (SE Europe) sediments and river water to the algae Pseudokirchneriella subcapitata

Water Research
Torsten KällqvistKnut-Erik Tollefsen

Abstract

The Sava River, the largest and most commercially valuable water body in the riparian countries, receives inputs of organic and inorganic compounds from a variety of domestic and industrial activities that may affect the health of human beings and wildlife. In this work, the chronic toxicity of sediment, sediment porewater and surface water from the Sava River and connecting tributaries to the freshwater algae Pseudokirchneriella subcapitata was assessed to characterise the potential impact on aquatic organisms. Samples of different environmental matrices were either tested directly (porewater) or subjected to pre-concentration (sediments and surface water) prior to testing in a 72 h growth inhibition assay using P. subcapitata. The results show that a combination of pre-concentration and bioassay testing was able to characterise the toxic potential and to identify several compartment-specific "hot spots" along the Sava River. Based on the resulting data, a crude risk assessment identified that some of the locations may represent a risk to algae. Additional testing using multiple species and exposure phases is required to conduct a thorough risk assessment, however.

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Citations

May 1, 2009·Environmental Science and Pollution Research International·Ivana Teodorović
Jul 17, 2012·Environmental Science and Pollution Research International·Tvrtko SmitalMarijan Ahel
Jul 10, 2014·The Science of the Total Environment·Alícia Navarro-OrtegaDamià Barceló
Jun 16, 2010·Environmental Toxicology·Smiljana BritvićSandra Stepić
Sep 16, 2016·PloS One·Stoimir KolarevićBranka Vuković-Gačić
Dec 11, 2008·Archives of Environmental Contamination and Toxicology·Zrinka DragunBiserka Raspor

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