在温暖和凉爽的季节中,在中东地区的住宅建筑中,可沉积的微塑料;量化,表征和人类暴露评估
Zahra Khodarahmi1, Mohsen Heidari1, Sakine Shekoohiyan1
1Department of Environmental Health Engineering, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Environmental research
|March 2, 2025
概括
室内微塑料 (MP) 在家庭中构成显著的暴露风险,特别是在温暖的月份. 这项研究发现春季的MP沉积率高于秋季,强调减少室内塑料污染的必要性.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 公共卫生 公共卫生
背景情况:
- 室内微塑料 (MP) 越来越被认为是住宅环境中无处不在的污染物.
- 关于室内PM污染的研究有限,特别是关于中东地区的季节性变化和暴露.
- 可以安置的MP可以被吸入和摄入,对乘客构成潜在的健康风险.
研究的目的:
- 为了量化德黑兰住宅建筑的室内微塑料沉积率.
- 调查季节 (春季与秋季) 对室内微塑料水平的影响.
- 为了估计人类每日暴露在家庭中可沉降的微塑料中.
主要方法:
- 在2023年春季和秋季的45天里,从德黑兰的住宅建筑收集了沉降样本.
- 使用光显微镜和微拉曼光谱学识别和量化了微塑料.
- 计算了每天的MP存款率和估计的每日摄入量.
主要成果:
- 平均室内MP沉积率在春季 (2.6×103MP/m2/day) 与秋季 (1.3×103MP/m2/day) 相比显著上升.
- 清洁频率 (每周一次或两次) 并没有显著影响MP沉积率.
- 纤维和聚乙烯二甲 (PET) 是主要的微塑料类型.
结论:
- 季节性变化显著影响住宅建筑中沉性微塑料的沉积和暴露率.
- 在温暖的季节中暴露率更高,需要有针对性的策略来缓解室内微塑料暴露.
- 需要进一步的研究来了解室内微塑料暴露对健康的长期影响.
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