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来自英国伯明翰的室内空气中的微塑料:对吸入暴露的影响

Hassan Khalid Ageel¹, Stuart Harrad¹, Mohamed Abou-Elwafa Abdallah¹

¹School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom.

Environmental pollution (Barking, Essex : 1987)

|September 21, 2024

概括

微塑料 (MP) 污染在英国家庭比工作场所高,纤维是占主导地位的形状. 由于其发育中的系统,幼儿面临更高的吸入暴露风险.

科学领域:

环境科学环境科学
毒理学毒理学毒理学
公共卫生公共卫生

背景情况:

微塑料 (MP) 是普遍存在的环境污染物,受到越来越多的科学和社会关注.
大多数关于MP的研究都集中在水生环境上,人类暴露,特别是室内暴露,研究不足.
室内环境至关重要,因为人们大部分时间都在室内度过.

研究的目的:

研究室内空气中微塑料的存在,度和特征.
为了比较家庭和工作场所的微塑料含量.
估计人类吸入微塑料的暴露,特别是对于幼儿等弱势群体.

主要方法:

在英国伯明翰的30个家庭和30个工作场所进行了主动和被动空气采样.
分析了微塑料的度,形态 (形状),尺寸分布和聚合物类型.
成人和幼儿的每日吸入剂量估计.

主要成果:

家庭中微塑料的平均度显著高于工作场所,无论是积极 (15.6 vs 13.1 MP/m3) 还是被动 (3735 vs 3177 MP/m2/day) 采样.
纤维和碎片占MP的90%以上;空中MP较小 (10-25微米),而降落MP较大 (50-100微米).
估计每日吸入暴露量为成人每天3.0 MP/kg体重,幼儿每天6.3 MP/kg体重.

结论:

室内微塑料污染很大,家庭的污染水平高于工作场所,可能是由于地毯.
吸入式微型塑料纤维的普及引起了人们对呼吸系统健康风险的担忧.
幼儿的微塑料吸入暴露率较高,对其发育中的生理系统构成潜在风险.

关键词:

积极采样活动采样.人类暴露的人类暴露.室内空气室内空气微塑料是一种微塑料.被动抽样是一种被动抽样.

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