在河边工业园区中,中间挥发性有机化合物的时空空间特征和来源分配
Xiaoxiao Hou1, Yingjun Chen2, Wanting Zhuang1
1College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225009, PR China.
Environmental pollution (Barking, Essex : 1987)
|November 9, 2025
概括
中级挥发性有机化合物 (IVOCs) 在夏季比冬季在河工业园区附近更高. 工业过程,航运和煤炭燃烧是主要的排放来源,需要有针对性的污染控制战略.
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:
- 河工业园区对于经济增长至关重要,但有助于复杂的污染问题.
- 这些公园的中间挥发性有机化合物 (IVOC) 排放量研究不足,影响区域污染控制.
- 了解IVOC对于在工业化地区制定有效的环境管理策略至关重要.
研究的目的:
- 量化IVOC排放量在一个具有代表性的河边工业园区内和周围.
- 分析IVOC度和化学成分的日间和季节性变化.
- 确定导致IVOC排放的主要来源.
主要方法:
- 在四个地点在夏季和冬季进行了采样活动.
- 测量IVOC度并分析其化学成分.
- 使用源分配分析来确定排放来源.
主要成果:
- 夏季的IVOC度明显高于冬季的IVOC度 (172 ± 25.0 μg/m3) (31.8 ± 2.45 μg/m3),并观察到白天的下降.
- 化学成分的季节性变化是显著的,夏季有较高的未溶解复杂混合物 (UCM) (82%) 和冬季增加的多环芳 (PAHs) (6-7%).
- 工业流程和内陆航运主导着夏季的IVOC,而冬季的煤炭燃烧是主要来源.
结论:
- IVOC排放呈现出明显的日间和季节性模式,受人类活动,气象和温度的影响.
- IVOCs的化学特征因季节性变化而变化,表明不同的主要排放来源.
- 考虑到工业过程,航运和煤炭燃烧等确定季节性来源的贡献,有针对性的污染控制措施至关重要.
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