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Toxicity screening of surface waters in southern Italy with Toxkit microbiotests

  • M. Isidori
  • A. Parrella
  • C. M. L. Piazza
  • R. Strada

Abstract

This preliminary study reports on the toxicity of surface waters collected twice in 1997 (once in late spring and once in late autumn) at 19 sampling stations in 5 areas (Domitian, Flegrean, Regi Lagni, Vesuvian and Coast area) in the Province of Naples in Italy. The acute toxicity of the surface waters was determined with a battery composed of 4 microbiotests: the Algaltoxkit F™, the Rotoxkit F™, the Thamnotoxkit F™ and the Daphtoxkit F™ pulex. With the exception of the surface waters from 2 stations in the Vesuvian area (but only for the autumn samples) in which no acute toxicity was detected, all other samples were found to be "slightly toxic" or "toxic" according to the arbitrary (log) classification in toxic units of Persoone et al. (1993). In virtually all cases, the waters were toxic to several if not all the test biota used. This preliminary investigation points to the urgent need for surface water quality improvement in the areas investigated. It furthermore confirmed that a battery of Toxkit microbiotests is a practical and reliable low cost tool for the hazard assessment of polluted waters.

Keywords

Acute Toxicity Standard Operational Procedure Juvenile Salmon Toxic Unit Aquatic Food Chain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • M. Isidori
    • 1
  • A. Parrella
    • 1
  • C. M. L. Piazza
    • 2
  • R. Strada
    • 2
  1. 1.Sezione Igiene — Dipartimento di Scienze della Vita —Seconda Università diNapoli CasertaItaly
  2. 2.Biolink — Stazione Zoologica“Anton Dohrn”NapoliItaly

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