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1 2023

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Insights From the Last Year’s Atmospheric CO2 Measurements in the Urban Atmosphere and the Natural Ecosystem in Southern Poland

Sensuła Barbara, Chmura Łukasz, Nęcki Jarosław, Zimnoch Mirosław

Geochronometria

2023

Vol. 50, no. 1

206--222

This article aims to compare the molar fraction of atmospheric CO2 measured in southern Poland, specifically in Gliwice (an urban area), Kraków (an urban area), and Kasprowy Wierch (a mountain environment) from August 2022 to March 2023. The study examines diurnal, monthly and seasonal variations in the molar fraction of CO2. Monthly and diurnal average CO2 air mole fraction data are reported for Gliwice, Kraków, and Kasprowy Wierch during the specified period. The results reveal greater fluctuations in CO2 amplitude in urban areas compared to the mountain environment. Significant differences in diurnal, nocturnal, monthly and seasonal variabilities of atmospheric CO2 are observed in the urban sites. The findings suggest that the biosphere may act as a dominant source of local CO2 in summer and fall, while other local or regional anthropogenic sources could impact CO2 levels during winter and early spring, prior to the vegetation period. Additionally, this paper discusses challenges encountered during the use of a low-cost system (CARBOCAP GMP-343) for measuring CO2 levels in the urban area of Gliwice in 2022.