title: Toxicity studies in a chemical dye production industry in Turkey.
abstract: This study investigated the acute toxicity of chemical dye production industry wastewaters by traditional and enrichment toxicity tests and emphasized the importance of toxicity tests in wastewater discharge regulations. The enrichment toxicity tests are novel applications indicating whether there is potential toxicity or stimulation conditions. Different organisms were used including bacteria (floc-Zoogloea ramigera and coliform-Escherichia coli bacteria), algae (Chlorella vulgaris), fish (lepistes-Poecilia reticulate) and protozoan (Vorticella campanula) to represent four tropic levels. The toxicity test results were compared with chemical analyses to identify the pollutants responsible for the toxicity in the effluent wastewater samples. Toxicity of the effluents could not be explained by using physicochemical analyses in four cases. The results clearly showed that the use of bioassay tests produce additional information about the toxicity potential of industrial discharges and effluents.
authors.affiliation: Dokuz Eylul University, Engineering Faculty, Environmental Engineering Department, Buca-Kaynaklar Campus, Izmir, Turkey. delya.sponza@deu.edu.tr
authors.forename: Delia Teresa
authors.initials: DT
authors.lastname: Sponza
mesh_terms: D000818:Animals; D001419:Bacteria / Q000187:drug effects; D002104:Cadmium / Q000032:analysis; D002617:Chemical Industry; D002857:Chromium / Q000032:analysis; D004396:Coloring Agents / Q000633:toxicity*; D056890:Eukaryota / Q000187:drug effects; D005399:Fishes; D006838:Hydrocarbons / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste / Q000009:adverse effects*; D007501:Iron / Q000032:analysis; D007854:Lead / Q000032:analysis; D023382:Toxicity Tests, Acute / Q000379:methods*; D014421:Turkey
chemical_list: D004396:Coloring Agents; D006838:Hydrocarbons; D007220:Industrial Waste; D002104:Cadmium; D002857:Chromium; D007854:Lead; D007501:Iron