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巴基斯坦四个首都的PM2.5污染及其与气象参数的相关性

Bahadar Zeb¹, Jawad Nasir², Khan Alam³

¹Department of Mathematics, Shaheed Benazir Bhutto University, Sheringal, Dir (Upper), Pakistan.

Environmental monitoring and assessment

|October 23, 2025

概括

巴基斯坦面临严重的空气污染,年平均PM2.5水平比世卫组织指导标准高5倍. 这项研究分析了四个主要城市的PM2.5趋势和因素,揭示了污染量下降,但健康风险持续存在.

科学领域:

环境科学环境科学
大气化学大气化学
公共卫生公共卫生

背景情况:

巴基斯坦在与空气污染相关的死亡率方面排名全球第三,颗粒物 (PM2.5) 水平始终超过世卫组织指南.
现有的空气质量监管受到地面数据不足和监测网络稀疏的阻碍.
长期暴露于PM2.5升高水平,在巴基斯坦各地构成重大公共健康风险.

研究的目的:

通过长期PM2.5测量,分析并对巴基斯坦四个城市的空气污染情景和特征进行排名.
对PM2.5度的时空性质,趋势和气象影响进行调查.
为改善巴基斯坦空气质量管理和监管提供数据驱动的见解.

主要方法:

利用地面站的长期PM2.5测量和哥白尼天文大气监测服务 (CAMS) 数据集.
分析了PM2.5和气象参数 (湿度,温度,风速,降水) 之间的时空变化,趋势和相关性.
将PM2.5度与世卫组织空气质量指南 (AQG) 和巴基斯坦国家环境质量标准 (Pak-EPA) 相比较.

主要成果:

拉合尔被确定为PM2.5.5最受污染的城市.
巴基斯坦 (2018-2023) 年平均PM2.5度为54.7μg/m3,明显超过国家和国际标准.
在这四个城市都观察到统计学上显著的负面趋势 (减少PM2.5);湿度成为主要影响气象因素.

结论:

尽管PM2.5趋势正在下降,但巴基斯坦人口仍然暴露于不健康的空气质量.
气象因素,特别是湿度,在调节PM2.5度方面发挥着至关重要的作用.
该研究强调需要加强监测和监管战略,以减轻空气污染的影响.

关键词:

卡姆斯卡姆斯卡姆斯气象参数气象参数对于PM2.5来说,这是一个很好的例子.巴基斯坦巴基斯坦巴基斯坦.回归分析是一种回归分析.

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