来自越南废旧车辆加工车间的空气和尘埃样本中的多环芳:污染状况,来源和暴露风险
Anh Quoc Hoang1, Shin Takahashi2, Le Huu Tuyen3
1University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi, 10000, Vietnam. hoangquocanh1990@gmail.com.
Bulletin of environmental contamination and toxicology
|June 12, 2023
概括
越南的废旧车辆 (ELV) 车间在空气和尘埃中排放出高水平的多环芳 (PAH) 和甲基化PAH (Me-PAH). 这些排放表明,ELV加工是一个重要的来源,可能来自燃烧和与石油相关的石油源.
科学领域:
- 环境化学环境化学
- 职业健康 职业健康 职业健康
- 污染物分析 污染物分析
背景情况:
- 多环芳 (PAH) 是无处不在的环境污染物.
- 甲基化PAHs (Me-PAHs) 是PAHs的衍生物,具有潜在不同的毒理特征.
- 废弃车辆 (ELV) 处理涉及复杂的材料处理和潜在的污染物释放.
研究的目的:
- 来自越南北部的ELV车间的空气和尘埃中量化PAH和Me-PAH度.
- 在ELV研讨会中与控制环境中比较PAH和Me-PAH水平.
- 在ELV加工场所中识别PAH和Me-PAH的潜在来源.
主要方法:
- 基于聚氨泡的被动空气采样 (PUF-PAS) 用于收集空气样本.
- 从车间环境中收集了沉积尘埃样本.
- 气色谱-质谱法 (GC-MS) 或类似的分析技术用于PAH和Me-PAH量化.
主要成果:
- 在ELV空气和尘埃中的PAH总度明显高 (1.5-9.4倍) 于控制室.
- 与对照组 (18%) 相比,ME-PAHs在ELV车间空气 (26%) 和灰尘 (41%) 中占PAH总量的比例较高.
- 升高的PAH和Me-PAH水平表明ELV加工是大量排放源.
结论:
- 工厂加工ELV是PAH和Me-PAH的重要来源.
- 氧化和Me-PAHs的存在表明,氧化 (燃烧) 和石化 (与石油/燃料相关) 来源的贡献.
- 了解这些排放档案对于评估ELV回收设施中的职业暴露和环境影响至关重要.
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