织工业区大气微塑料污染:来源,成分和健康风险评估
Riajul Haq Tanjil1, Md Safiqul Islam2, Zubayer Islam1
1Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka, 1000, Bangladesh.
Bulletin of environmental contamination and toxicology
|March 22, 2025
概括
织工厂是大气中微塑料污染的重要来源. 这项研究发现,由于空气中的纤维,高微塑料沉积率和织工人潜在的健康风险.
科学领域:
- 环境科学 环境科学
- 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:
- 微塑料 (MP) 是广泛存在的环境污染物,但其大气来源尚未得到充分了解.
- 织工业是由于合成纤维的生产和加工而导致大气MP的潜在贡献者.
研究的目的:
- 调查织工业对大气微塑料污染的贡献.
- 量化在织工厂内和周围的微塑料沉.
- 评估织工人暴露于微塑料的潜在健康风险.
主要方法:
- 在孟加拉国达卡的六家织工厂内外收集大气中的微塑料样本.
- 使用光显微镜和富里埃变换红外光谱 (FTIR) 分析了微塑料.
- 量化微塑料沉积率和估计工人通过吸入和摄入暴露.
主要成果:
- 鉴定出主要是合成织纤维 (聚,尼龙,再生纤维素) 的尺寸在20180微米之间.
- 在工厂内部观察到显著更高的微塑料沉积率 (109.0245.3 × 103 MPs/m2/day) 与外部 (19.372.7 × 103 MPs/m2/day) 相比.
- 据估计,织工人每年平均暴露率为:8.7 mg/kg-Bw/年 (吸入) 和97.9 mg/kg-Bw/年 (摄入).
结论:
- 织工厂是大气中微塑料污染的重要来源.
- 高度的微塑料暴露对织工人的健康构成重大风险.
- 需要采取缓解策略,以减少环境污染并保护工人健康.
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