塑料垃圾,持久有机污染物及其在智利中部沿海地区的毒性影响
Victoria A Gómez1, Karla Pozo2, Christelle Clérandeau3
1Department of Physical, Earth and Environmental Sciences, University of Siena, 53100, Italy,; Centro GEMA (Genómica, Ecología y Medio Ambiente), Universidad Mayor, Huechuraba, Santiago 8580000, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile.
Marine pollution bulletin
|August 14, 2023
概括
智利的海洋塑料碎片显示出高度的聚化二乙烯 (PBDE). 毒性测试揭示了显著的急性和遗传毒性影响,突出了塑料污染对环境的风险.
科学领域:
- 环境科学 环境科学
- 海洋生物学 海洋生物学
- 生态毒理学 生态毒理学
背景情况:
- 塑料垃圾构成了全球经济,社会和环境挑战.
- 海洋塑料垃圾在沿海生态系统中积累,影响海洋生物.
- 塑料中的化学污染物可以入环境中.
研究的目的:
- 评估来自智利康塞普森湾的海洋塑料垃圾的急性毒性和基因毒性.
- 分析塑料垃圾中特定化学污染物 (PCB,OCP,PBDE) 的度.
- 为了确定智利海岸沿海塑料垃圾毒性的基线.
主要方法:
- 冬季收集的塑料垃圾的综合化学和毒理学分析.
- 使用Vibrio fischeri进行急性毒性评估的Microtox®测定.
- 使用大肠杆菌进行基因毒性评估的SOS染色体测试.
- 测量多双 (PCB),有机农药 (OCP) 和多二乙烯 (PBDE) 的数量.
主要成果:
- 检测到高度的多化二乙烯 (PBDE) (238 ± 521 ng g-1).
- 急性毒性和基因毒性测试表明,大多数测试样本都显示出敏感性.
- 冬季活动揭示了塑料垃圾的显著毒理特征.
结论:
- 康塞普森湾的塑料垃圾具有相当大的毒性和基因毒性.
- 在智利的海洋塑料垃圾中,PBDE是令人担忧的重要污染物.
- 这项研究提供了智利沿海塑料垃圾的首次毒理学分析.
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