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煤炭及其制备产品中的原生多环芳 (PAH) - 环境污染的混合来源

Shan Li¹, Ziqi Xu², Peng Wu³

¹State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources, Beijing, 100083, China.

Environmental pollution (Barking, Essex : 1987)

|September 7, 2024

概括

煤炭和煤炭中的多环芳 (PAH) 具有相似的特征,这表明它具有混合的石化和烧化起源. 建议对化PAH进行进一步的研究,以准确识别环境来源.

科学领域:

环境科学环境科学
地质化学地质化学
分析化学分析化学

背景情况:

多环芳 (PAH) 是煤炭和煤炭中发现的重要环境污染物.
了解这些材料之间的PAH配置文件的相似性和差异对于环境评估至关重要.

研究的目的:

分析原煤及其制备产品中可提取的PAHs的度和分布.
为了比较煤炭和煤炭之间的PAH特性.
为了确定煤炭和煤炭中PAHs的来源.

主要方法:

来自中国一家煤炭制备厂的原煤,清理煤,粘液,中间体和的分析.
总PAHs (41PAH),美国环保署16个优先PAHs (16PAH) 和基化PAHs (aPAH) 的量化.
从文献数据中编制和分析PAH异构体比率.

主要成果:

排列PAH度:原煤 > 清理煤 > 粘液 > 中间物质 > .
在原煤及其产品中观察到2-3环PAH的占主导地位和一致的同位素比分布.
酸异构体比率表明,煤炭和煤炭的原产地是混合的化物和化物.

结论:

煤和煤具有相似的PAH特性,支持它们被归类为混合来源.
这些发现表明这些材料中PAHs的结合性石油和 pyrogenic 起源.
为了准确的环境来源分配,需要对基化PAH进行扩大调查.

关键词:

基化PAHs是一种基化PAHs.煤炭是一种煤炭.煤炭集团是一个团伙.气体染色学-质谱学-质谱学燃烧和石化源的来源是燃烧和石化源.

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