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通风和空调灰尘中的液晶单体:室内特征,来源分析和毒性评估

Qianqian Jin¹, Yinzheng Fan², Yichun Lu²

¹School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China.

Environment international

|September 22, 2023

概括

室内灰尘含有来自电子屏幕的液晶单体 (LCM),对健康构成风险. 这项研究在空气过器中发现了LCM,并证明了它们对肺细胞的毒性,突出了使用电子设备的风险.

科学领域:

环境科学环境科学
毒理学毒理学毒理学
职业健康职业健康职业健康

背景情况:

液晶显示屏 (LCD) 的液晶单体 (LCM) 可以污染室内灰尘.
与室内LCM暴露相关的潜在人类健康风险尚未完全理解.

研究的目的:

调查通风和空调过器 (VACF) 尘埃中LCM的发生和组成.
识别LCM来源及其与室内环境因素的关系.
评估在人肺细胞中检测到的LCMs的体外毒性.

主要方法:

在VACF尘埃样本中分析了64个LCM.
积极矩阵因子分解-多重线性回归 (PMF-MLR) 用于源识别.
使用人类肺支气管上皮细胞 (BEAS-2B) 进行体外毒性评估.

主要成果:

在VACF尘埃中检测到31个LCM,其度在43.7至448ng/g之间.
化LCM与通风系统的使用和室内液晶显示屏的数量呈正相关性.
低化微生物诱导肺细胞的氧化应激;特定的非化低化微生物降低了细胞活力.

结论:

室内灰尘是来自电子设备的LCM的储存库.
环境因素影响LCM分布,化和非化化合物的行为不同.
暴露于LCM对人类肺细胞具有体外毒性风险,这凸显了潜在的健康问题.

关键词:

在BEAS-2B细胞中,室内环境室内环境液晶单体液晶单体单体来源分配的分配方式通风和空调尘埃的排放和空调尘埃.

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