Investigation of Ecotoxicological Properties of Some Azo Dyes by OECD QSAR Method

Abstract

In this study, the effects of some azo dyes, which are frequently used in the industry, and aromatic amines, which are used as raw materials in their synthesis, on the environment were investigated with the OECD QSAR model. When the literature was searched, it was seen that no studies were found in comparison with ecotoxicologically related dyes and raw materials.

As a result of the studies showed that 2-Bromo-4,6-dinitroaniline aromatic amine, which is accepted as a raw material in the acute water toxicity test, is the most toxic substance in Daphnia Magna. It was determined that Disperse Blue 291 dye showed the highest toxicity in the acute aquatic toxicity test performed on fish with an LC50 value of 0.0675 mg.L^-1. In addition, when the molecular structure of azo dyes and their raw materials was examined, it was observed that some functional groups such as nitro group and ether group presence were quite effective in toxicity.