Pegah Nakhjirgan; Mohammad Hadi Dehghani
Abstract
Background and objective: Increased use of nanoparticles in industries leads to entering hazardous substances to environment. Nanoparticle toxicity due to release of toxic substances into the environment is a concern for communities. One of the common nanoparticles ingredients are zinc oxide. In this ...
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Background and objective: Increased use of nanoparticles in industries leads to entering hazardous substances to environment. Nanoparticle toxicity due to release of toxic substances into the environment is a concern for communities. One of the common nanoparticles ingredients are zinc oxide. In this study toxicity of the solution containing the Reactive Red 120 dye after Nano-catalytic process UV/ ZnO using biological test Daphnia magna was studied. Methods: this is a fundamental – practical study, which done on laboratory scale. Toxicity assay tests were carried out using Daphnia magna a bio-indicator. Then results of toxicity tests using SPSS software were analyzed and Lc50were determined. Results: Results showed that the Lc50 value at 24,48,72,96 hr is 73.16, 55.93, 41.32, 30.45 mg/l and the toxicity unit values are 1.36, 1.78, 2.42, and 3.28, respectively. Conclusion: the results generally indicated that toxicity increased in process and over time and showed that Reactive Red 120 after UV/ ZnO process was toxic to Daphnia magna. Paper Type: Research Article