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在重庆对大气中的挥发性有机化合物的源资料分析

Anqi Zhang¹, Xin Qi^2,3, Yuchun Jiang^1,4

¹State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.

|February 26, 2026

概括

这项研究确定了重庆工业独特的挥发性有机化合物 (VOC) 概况. 汽车制造业排放高水平的有害芳香碳化合物,需要有针对性的减排战略.

科学领域:

环境化学环境化学
大气科学大气科学
工业生态学工业生态学

背景情况:

挥发性有机化合物 (VOC) 是各种工业来源的重要空气污染物.
准确的来源资料对于有效的空气质量管理和健康风险评估至关重要.
重庆是一个主要的工业中心,缺乏详细的VOC来源特征.

研究的目的:

系统地调查和描述重庆主要工业部门的VOC来源概况.
为了识别不同的化学特征和工业VOC排放的区域差异.
为有针对性的减排战略和监管干预提供科学证据.

主要方法:

现场抽取15个代表性工业设施的排放样本.
综合文献审查,以补充排放数据.
分析挥发性有机化合物的组成,以确定特定来源的特征.

主要成果:

家具制造业的排放主要是由基 (65%).
化学工业显示了51%的基贡献.
汽车制造业具有较高的芳香碳化合物含量 (64%),包括潜在致癌的衍生物.

结论:

在重庆的家具,化学品和汽车制造业中,确定了明显的VOC来源配置文件.
汽车制造业的高芳碳化合物排放带来了严重的健康风险,需要监管部门的关注.
该研究填补了关键的知识差距,支持准确的来源分配和特定部门的VOC控制策略.

关键词:

挥发性有机化合物挥发性有机化合物人为来源的人为来源.工业排放的工业排放.风险评估风险评估风险评估源资料分析分析来源资料分析

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Volatilization

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Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...