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使用计算工具对电子液体混合物的生态毒理学查.

Andrey Massarsky1, Adam Bonin2, Yasemin Atalay3

  • 1Stantec Consulting Services, Inc., Irvine, CA, United States.

Environmental toxicology and chemistry
|February 8, 2025
PubMed
概括

这项研究引入了一个新的框架,通过选它们的化学成分,以检测它们对水生生物的潜在毒性,来评估电子液体的生态风险. 该方法有助于识别复杂混合物中的高风险化学品,用于有针对性的环境影响评估.

关键词:
电子液体是一种电子液体.生态结构活动关系 (ECOSAR)暴露和命运评估查工具 (E-FAST)环境评估环境评估环境评估市场前烟草制品申请 (PMTA)

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科学领域:

  • 环境科学 环境科学
  • 生态毒理学 生态毒理学
  • 化学品风险评估 化学品风险评估

背景情况:

  • 电子尼古丁输送系统 (ENDS) 电子液体含有各种化学物质,需要进行环境影响评估.
  • 像美国FDA这样的监管机构要求在市场前的烟草产品申请 (PMTA) 中进行环境评估.
  • 没有先前的研究评估了电子液体混合物的生态毒理特性.

研究的目的:

  • 开发和提出一个新的框架来选复杂的电子液体混合物.
  • 确定具有最高潜在生态风险的电子液体成分.
  • 为了能够针对ENDS产品进行有针对性的环境影响评估.

主要方法:

  • 利用美国环境保护局 (USEPA) 的生态结构活动关系 (ECOSAR) 计划来预测化学毒性.
  • 基于毒性值和度的电子液成分的计算相对毒性.
  • 使用USEPA暴露和命运评估选工具来评估最有毒化学品的环境命运.

主要成果:

  • 从电子液体混合物中确定了七种具有最大毒性的化学物质.
  • 在假设的释放场景下,这些化学物质在地表水中的环境度估计.
  • 将估计度与毒理基准进行比较,以评估对水生生物的潜在影响.

结论:

  • 开发的框架是用于选复杂化学混合物的强大,高通量方法.
  • 这种方法有助于识别对生态最关心的化学物质.
  • 能够针对电子液体等产品进行有针对性的环境风险评估,支持监管合规.