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来自静止燃烧源的可凝结颗粒物的研究:来源概况,排放和对环境细颗粒物的影响

Huanhuan Tong¹, Yangjun Wang¹, Ling Huang¹

¹School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; Key Laboratory of Organic Compound Pollution Control Engineering (MOE), Shanghai University, Shanghai 200444, China.

The Science of the total environment

|September 19, 2024

概括

控制来自中国工业来源的可凝结颗粒物 (CPM) 显著减少了环境PM2.5.5. 超低排放政策将CPM排放量减少了60%以上,比传统的污染物控制更大影响.

科学领域:

环境科学环境科学
大气化学大气化学
控制空气污染控制空气污染

背景情况:

了解来自中国固定源的可凝结颗粒物 (CPM) 排放对于环境PM2.5控制至关重要.
在控制静止燃烧源的排放方面取得了重大进展,但CPM的影响仍未得到充分研究.

研究的目的:

在长江三角洲 (YRD) 建立来自燃煤工业炉 (CFIB),燃煤发电厂 (CFPP) 和钢铁工业 (ISI) 的CPM源资料和排放清单.
通过使用社区多尺度空气质量 (CMAQ) 模型,评估CPM排放对环境PM2.5的影响.

主要方法:

从YRD地区的CFIB,CFPP和ISI获得CPM的来源分析和排放库存开发.
使用CMAQ进行空气质量建模,以评估CPM排放对PM2.5度在PM2.5高时期 (2018年2月) 对环境PM2.5度的影响.

主要成果:

在实施超低排放 (ULE) 政策后,YRD中的三个来源的CPM排放量从109,839降至43,338.
对CFPP的ULE政策减少了CPM对月度PM2.5度的影响,从0.92μg/m3降至0.41μg/m3.
在污染期间,CPM排放增加了0.68μg/m3的PM2.5,其中硫酸盐,有机碳和酸盐是最大的贡献者.

结论:

固定燃烧源的CPM排放对环境PM2.5产生重大影响,特别是在污染事件期间.
该ULE政策在减少CPM对PM2.5的贡献方面表现出有效性,超过了传统污染物的减少.
建议针对ISIs和CFIB采取有针对性的ULE措施,以加强空气质量管理.

关键词:

空气质量建模空气质量建模可凝结的颗粒物物质可以凝结.排放量清单排放量清单排放量清单排放量清单来源简介来源简介

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