Impacts of meteorology and mixing height on radioactive and stable aerosols in Bratislava, Slovakia

IF 4.5 2区地球科学 Q1 METEOROLOGY & ATMOSPHERIC SCIENCES

Atmospheric Research Pub Date : 2024-09-28 DOI:10.1016/j.atmosres.2024.107710

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引用次数: 0

Abstract

This study investigated the variability of radioactive and stable aerosols (⁷Be, ²¹⁰Pb, ¹³⁷Cs, ⁴⁰K, PM10, and PM2.5) in relation to mixing layer height (MLH) based on outdoor radon and meteorological factors in Bratislava, Slovakia from 2017 to 2021. Aerosol concentrations exhibit distinct seasonal patterns, with higher ⁷Be concentrations in summer and lower in winter, while ¹³⁷Cs, ⁴⁰K, ²¹⁰Pb, PM10 and PM2.5 showed almost the opposite trends. Different statistical techniques, including Pearson's correlation analysis, multiple regression analysis (MRA), and canonical correlation analysis (CCA), were employed to elucidate the intricate relationships between aerosol concentrations, MLH, and meteorological parameters. The MRA identified a significant correlation between aerosol variability and specific predictors, while the CCA highlighted the differential influence of MLH and meteorological parameters on aerosol concentrations. The analysis revealed that temperature, MLH, and relative humidity are the primary factors influencing aerosol concentrations, underscoring their pivotal role in environmental dynamics.

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气象和混合高度对斯洛伐克布拉迪斯拉发放射性和稳定气溶胶的影响

本研究根据斯洛伐克布拉迪斯拉发的室外氡和气象因素，调查了 2017 年至 2021 年期间放射性和稳定气溶胶（7Be、210Pb、137Cs、40K、PM10 和 PM2.5）与混合层高度（MLH）的变化关系。气溶胶浓度呈现出明显的季节性特征，7Be浓度夏季较高，冬季较低，而137Cs、40K、210Pb、PM10和PM2.5则呈现出几乎相反的趋势。研究人员采用了不同的统计技术，包括皮尔逊相关分析、多元回归分析和典型相关分析，以阐明气溶胶浓度、MLH 和气象参数之间错综复杂的关系。多元回归分析确定了气溶胶变异性与特定预测因子之间的显著相关性，而典型相关分析则强调了 MLH 和气象参数对气溶胶浓度的不同影响。分析结果表明，温度、空气湿度和相对湿度是影响气溶胶浓度的主要因素，突出了它们在环境动态中的关键作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Atmospheric Research 地学-气象与大气科学

CiteScore

9.40

自引率

10.90%

发文量

460

审稿时长

47 days

期刊介绍： The journal publishes scientific papers (research papers, review articles, letters and notes) dealing with the part of the atmosphere where meteorological events occur. Attention is given to all processes extending from the earth surface to the tropopause, but special emphasis continues to be devoted to the physics of clouds, mesoscale meteorology and air pollution, i.e. atmospheric aerosols; microphysical processes; cloud dynamics and thermodynamics; numerical simulation, climatology, climate change and weather modification.