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在乌鲁木齐,大气细颗粒物和臭氧的传输途径和潜在来源地区

Aifang Gao¹, Wanting Sun¹, Xi You¹

¹School of Water Resources and Environment, Hebei GEO University, Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Hebei Center for Ecological and Environmental Geology Research, Shijiazhuang 050031, China.

Journal of environmental sciences (China)

|September 26, 2025

概括

乌鲁木齐的细颗粒物 (PM2.5) 和臭氧 (O3) 污染主要来自西北部,季节性影响不同地区. 建议采取更严格的区域控制措施,以减轻空气污染.

科学领域:

大气科学大气科学
环境科学环境科学
空气质量研究空气质量研究

背景情况:

乌鲁木齐面临着由细颗粒物 (PM2.5) 和臭氧 (O3) 造成的严重空气污染挑战.
了解这些污染物的来源和传播途径对于有效的空气质量管理至关重要.

研究的目的:

调查乌鲁木齐的PM2.5和O3的传输路径和潜在来源区域.
分析污染特征和PM2.5和O3.3的季节性变化.

主要方法:

利用了2020-2022年的监测数据.
使用MeteoInfo软件进行逆向轨迹分析,包括加权潜在源贡献函数 (WPSCF) 和加权度加权轨迹 (WCWT).
在不同高度上比较轨迹分布.

主要成果:

PM2.5和O3轨迹主要来自西北,经过宁/伊利和塔.
在冬季,PM2.5污染的空气流量比例为44.83%,而O3的峰值度为119.2μg/m3,夏季空气流量比例为30.52%.
确定了主要来源地区:冬季PM2.5的博州,库伊图恩和石河西;夏季O3.5的长江和图尔潘.

结论:

接近地表的空气质量显著影响冬季的PM2.5度,而较高的大气压力有助于夏季的O3污染.
区域空气污染控制战略是必要的,目标是确定源区域,以减少影响乌鲁木齐的跨境污染.

关键词:

空气污染大气污染逆向轨迹的轨迹是向后的在PM{2.5) 和O{3) 中.分析潜在的来源分析.乌鲁木齐的城市是乌鲁木齐.

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