基于非目标分析和机器学习预测模型,对儿童塑料玩具中的内分泌干扰化学物质进行查和优先排序
Wenwen Cai1, Siyu Li2, Yacai Zhang2
1School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang 453007, China; Huanghuai Laboratory, Zhengzhou 450003, China.
Environment international
|November 24, 2025
概括
儿童塑料玩具中存在有害化学物质,包括内分泌干扰物. 这项研究确定并优先考虑了这些化学物质,揭示了某些玩具材料中的高风险,并敦促采取控制措施.
科学领域:
- 环境化学环境化学
- 毒理学 毒理学 毒理学
- 材料科学 材料科学 材料科学
背景情况:
- 婴儿接触塑料玩具中的化学物质,特别是内分泌干扰物,是一个越来越令人担忧的问题.
- 关于幼儿玩具中特定化学物质及其风险的知识有限.
研究的目的:
- 系统地选和优先考虑塑料玩具中的内分泌干扰化学物质 (EDC),使用非目标分析和毒理优先指数 (ToxPi) 模型.
- 评估婴儿塑料玩具中已识别的EDCs相关的暴露风险.
主要方法:
- 对45个塑料玩具进行非目标分析.
- 应用毒理优先指数 (ToxPi) 模型与机器学习预测的毒性数据.
- 将165种已识别的化合物分为添加剂,加工辅助剂和非故意添加物质等类别的分类.
- 基于ToxPi得分和复合峰值强度的暴露风险指数的计算.
主要成果:
- 确定了165种化合物,其中添加剂 (30.3%) 和无法分类的化学物质 (33.9%) 是最常见的. 抗氧化剂,增塑剂,阻燃剂和表面活性剂是常见的.
- 新兴的非酸盐增塑剂和非故意添加的药物首次被检测到.
- 抗氧化剂和抗菌剂的ToxPi得分较高,表明具有显著的内分泌干扰潜力.
- 由聚乙烯四甲酸盐,,烯-丁-烯和聚烯制成的玩具具有更高的风险指数.
- 乙基酸盐,伊尔加诺克斯1010,二氧化和石墨烯被确定为特定材料中最优先的EDC.
结论:
- 小孩子的塑料玩具含有广泛的化学物质,包括具有高毒性的新兴EDC.
- 由于这些EDC的存在和度,某些玩具材料具有更高的风险.
- 迫切需要对婴儿暴露风险进行评估,并实施对塑料玩具中EDC的控制措施.
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