Comparison of the 1 hour and the 24 hour toxicity tests with Thamonocephalus platyurus larvae on environmental and spiked samples

Research output: Contribution to journalArticle

Abstract

Nowadays it's a great challenge to have quick, simple, cheap test methods for detecting hazards in drinking water. Workshops on Toxicity for Biodefence were organized in 2002 at the Oregon State University in the USA, and in 2004 at the University of Pecs in Hungary. Both Workshops were based on the concept that the participants had to bring their own equipment and materials to analyze the same blind water samples. At the end of the Workshop the results from the different test methods were compared and the chemical composition of the samples was disclosed. Fifteen different assays, encompassing toxicity, mutagenicity and genotoxicity tests were applied in the workshop at Pecs, with both commercial kits and methods still under development. Thirty blind samples had to be analyzed composed of natural waters (surface waters, ground waters, tap water and sediment waters) which had been either or not spiked with one or several chemicals in different concentrations. This paper reports on the sensitivity comparison of the (1 hour) Rapidtoxkit and the (24 hour) Thamnotoxkit microbiotest. For 19 samples the toxicity signal given by both tests was of the same toxicity class. For the others the results differed by one or two classes.

Original languageEnglish
Pages (from-to)1076-1080
Number of pages5
JournalFresenius Environmental Bulletin
Volume15
Issue number9 A
Publication statusPublished - Oct 18 2006

Keywords

  • Biodefence
  • Ecotoxicology
  • Microbiotests
  • Thamnocephalus platyurus
  • Water toxicology

ASJC Scopus subject areas

  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

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