Oxybenzone is an ultraviolet filter frequently used in Personal Care Products, plastics, furniture, etc. and is listed as an Emerging Contaminant. This report studied the acute toxicity of Oxybenzone to after exposure to graded concentrations of Oxybenzone for 7 days. IC for growth was found to be 8.53 mg L. The hormesis effect was reported at lower concentrations, while growth and pigments reduced from 2.5 to 12.5 mg L in a concentration-related manner. The impact of Oxybenzone on protein and antioxidant enzymes- Catalase and Guaiacol Peroxidase revealed less stress up to 2.5 mg L than control, increasing further from 5 to 10 mg L. Enzyme activity decreased over-time but always remained higher than control over a period of 7 days. Thus, our findings reveal that indiscriminate discharge of Oxybenzone could be potentially toxic to the aquatic primary producers at higher concentrations, causing an ecological imbalance in aquatic ecosystems.

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新兴污染物氧苯酮对生态重要水生植物浮萍的急性毒性评估

氧苯酮是一种紫外线过滤剂，常用于个人护理产品、塑料、家具等，被列为新兴污染物。该报告研究了接触不同浓度的氧苯酮 7 天后氧苯酮的急性毒性。发现生长的 IC 为 8.53 mg·L。在较低浓度下报告了毒物兴奋效应，而生长和色素以浓度相关的方式从 2.5 mg·L 减少到 12.5 mg·L。氧苯酮对蛋白质和抗氧化酶（过氧化氢酶和愈创木酚过氧化物酶）的影响显示，与对照相比，压力降低至 2.5 mg/L，并进一步从 5 mg/L 增加到 10 mg/L。酶活性随着时间的推移而下降，但在一段时间内始终保持高于对照。 7天。因此，我们的研究结果表明，不加区别地排放较高浓度的氧苯酮可能对水生初级生产者具有潜在毒性，导致水生生态系统的生态失衡。