A practical and user-friendly toxicity classification system with microbiotests for natural waters and wastewaters

Guido Persoone, Blahoslav Marsalek, Irina Blinova, A. Törökné, Dzidra Zarina, Levonas Manusadzianas, Grzegorz Nalecz-Jawecki, Lucica Tofan, Nadejda Stepanova, Livia Tothova, Boris Kolar

Research output: Contribution to journalArticle

209 Citations (Scopus)

Abstract

Various types of toxicity classification systems have been elaborated by scientists in different countries, with the aim of attributing a hazard score to polluted environments or toxic waste-waters or of ranking them in accordance with increasing levels of toxicity. All these systems are based on batteries of standard acute toxicity tests (several of them including chronic assays as well) and are therefore dependent on the culturing and maintenance of live stocks of test organisms. Most systems require performance of the bioassays; on dilution series of the original samples, for subsequent calculation of L(E C50 or threshold toxicity values. Given the complexity and costs of these toxicity measurements, they can only be applied in well-equipped and highly specialized laboratories, and none of the classification methods so far has found general acceptance at the international level. The development of microbiotests that are independent of continuous culturing of live organisms has stimulated international collaboration. Coordinated at Ghent University, Belgium, collaboration by research groups from 10 countries in central and eastern Europe resulted in an alternative toxicity classification system that was easier to apply and substantially more cost effective than any of the earlier methods. This new system was developed and applied in the framework of a cooperation agreement between the Flemish community in Belgium and central and eastern Europe. The toxicity classification system is based on a battery of (culture-independent) microbiotests and is particularly suited for routine monitoring. It indeed only requires testing on undiluted samples of natural waters or wastewaters discharged into the aquatic environment, except for wastewaters that demonstrate more than 50% effect. The scoring system ranks the waters or wastewaters in 5 classes of increasing hazard/toxicity, with calculation of a weight factor for the concerned hazard/toxicity class. The new classification system was applied during 2000 by the participating laboratories on samples of river water, groundwaters, drinking waters, mine waters, sediment pore waters, industrial effluents, soil leachates, and waste dump leachates and was found to be easy to apply and reliable.

Original languageEnglish
Pages (from-to)395-402
Number of pages8
JournalEnvironmental Toxicology
Volume18
Issue number6
DOIs
Publication statusPublished - 2003

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Waste Water
Toxicity
Wastewater
toxicity
wastewater
Water
Eastern Europe
Belgium
water
Acute Toxicity Tests
Hazards
Waste Disposal Facilities
Costs and Cost Analysis
hazard
Poisons
Groundwater
leachate
Rivers
Drinking Water
Biological Assay

Keywords

  • Microbiotests
  • Natural waters
  • Toxicity classification
  • Toxicity scoring
  • Toxkits
  • Wastewaters

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Water Science and Technology
  • Toxicology
  • Health, Toxicology and Mutagenesis
  • Pollution

Cite this

A practical and user-friendly toxicity classification system with microbiotests for natural waters and wastewaters. / Persoone, Guido; Marsalek, Blahoslav; Blinova, Irina; Törökné, A.; Zarina, Dzidra; Manusadzianas, Levonas; Nalecz-Jawecki, Grzegorz; Tofan, Lucica; Stepanova, Nadejda; Tothova, Livia; Kolar, Boris.

In: Environmental Toxicology, Vol. 18, No. 6, 2003, p. 395-402.

Research output: Contribution to journalArticle

Persoone, G, Marsalek, B, Blinova, I, Törökné, A, Zarina, D, Manusadzianas, L, Nalecz-Jawecki, G, Tofan, L, Stepanova, N, Tothova, L & Kolar, B 2003, 'A practical and user-friendly toxicity classification system with microbiotests for natural waters and wastewaters', Environmental Toxicology, vol. 18, no. 6, pp. 395-402. https://doi.org/10.1002/tox.10141
Persoone, Guido ; Marsalek, Blahoslav ; Blinova, Irina ; Törökné, A. ; Zarina, Dzidra ; Manusadzianas, Levonas ; Nalecz-Jawecki, Grzegorz ; Tofan, Lucica ; Stepanova, Nadejda ; Tothova, Livia ; Kolar, Boris. / A practical and user-friendly toxicity classification system with microbiotests for natural waters and wastewaters. In: Environmental Toxicology. 2003 ; Vol. 18, No. 6. pp. 395-402.
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