对二氧化物和PFAS化学物质进行比较毒理和流行病学评估
Dennis Paustenbach1, Karmen Kissell1, Aryatara Shakya1
1Paustenbach & Associates, Jackson, WY, USA.
Critical reviews in toxicology
|November 19, 2025
概括
对于和多基物质 (PFAS) 和二氧化的监管框架往往在关于人类健康风险的科学共识之前,这导致了意想不到的后果和社会成本. 这凸显了数据驱动监管的必要性.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 监管科学 监管科学
背景情况:
- 和多基物质 (PFAS) 和二氧化在环境持久性,生物复原性和物种间不同的毒性方面具有相似之处.
- 尽管PFAS在全球范围内广泛存在,但目前血液度对PFAS对人类健康的不良影响的科学共识仍然有限.
- 对二氧化的历史监管方法,通常是基于对完整科学数据的预防原则,导致了重大的社会和经济成本.
研究的目的:
- 检查二氧化和PFAS之间的科学理解和监管发展的相似之处.
- 评估科学不确定性和预防原则对持久性环境化学品监管框架的影响.
- 根据科学证据和历史先例,为未来的PFAS等化学品监管策略提供信息.
主要方法:
- 关于二氧化和PFAS对健康的影响的科学文献的比较分析.
- 审查历史的监管行动及其科学基础.
- 检查剂量反应关系和物种间毒性数据.
主要成果:
- 尽管在某些动物物种中中度至高毒性,但二氧化和PFAS在人类中呈现低急性毒性.
- 证据表明,这两种化学品家族都是弱性遗传毒性或非遗传毒性,在人类中致癌性的证据有限.
- 尽管存在科学不确定性,但对二氧化物采取了监管行动,与目前围绕PFAS监管的讨论并行.
结论:
- 对于像PFAS这样的持久化学品的监管框架应该以强有力的科学证据为依据,而不是仅仅是预防原则,以避免意外后果.
- 对二氧化碳监管的历史方法强调了基于不完整的科学数据采取行动所带来的经济和社会成本.
- 需要进一步的研究,以充分阐明PFAS在不同暴露水平上的人类健康风险,以确保基于证据的政策制定.
关键词:
对于PCDD来说,这是一个很大的问题.在PCDF中使用PCDF.在PFAS中,我们可以使用PFAS.这就是PFOA的PFOA.在PFOS系统中,我们可以对于TCDDD来说,这是一个很大的问题.二氧化二氧化的使用情况更多相关视频
09:04Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow
Published on: April 18, 2019
13.0K
07:06Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique
Published on: September 28, 2022
2.0K
相关概念视频
01:36Types of Toxins
3.1K
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
3.1K
01:26Toxic Reactions: Overview
1.8K
When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
1.8K