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回溯分析用于评估跨境运输对韩国气溶污染的影响

Ja-Ho Koo¹, Donghee Lee¹, Hyejin Bae¹

¹Department of Atmospheric Sciences, Yonsei University, Seoul, 03722, Republic of Korea.

Environmental pollution (Barking, Essex : 1987)

|April 28, 2024

概括

跨境运输对韩国的空气污染有重大影响. 高污染事件与较低的高度,较短距离的空气质量运动有关,这表明当地排放贡献.

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:

韩国的颗粒物 (PM2.5) 污染受各种因素的影响,包括跨境运输.
之前的研究已经强调了空气质水平运动在PM2.5分布中的重要性.

研究的目的:

分析跨境空气污染运输对韩国PM2.5水平的影响.
调查后方轨道高度和行程距离在评估气溶污染中的作用.

主要方法:

利用了来自韩国五个城市的5年PM2.5测量 (2015-2019).
进行了反向轨迹分析,通过穿越特定的黄海地区来定义跨境运输 (BOX 1和BOX 2).
在高污染事件期间检查了高度变化和背面轨迹的旅行距离.

主要成果:

在高PM2.5污染事件中,跨境运输频率显著增加.
高污染事件与低海拔和较短的旅行距离的背向轨迹相关.
在高速移动的高海拔跨境运输并没有显著增加当地的PM2.5.5.

结论:

当地的表面排放和停滞的空气条件在严重的气溶污染中起着至关重要的作用.
有效评估跨境运输需要考虑水平方向,高度变化和轨迹长度.
了解这些因素可以改善韩国的空气质量管理策略.

关键词:

这里是 HYSPLIT.在朝鲜半岛的半岛.远程运输是远程运输.在PM中{2.5)黄海是什么意思?黄海是什么意思?

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