Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 18
Articles | Volume 25, issue 18
https://doi.org/10.5194/acp-25-10499-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-10499-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 18
Measurement report
 | 
15 Sep 2025
Measurement report |  | 15 Sep 2025

Measurement report: Seasonal trends and chemical speciation of chromium(III/VI) in different fractions of urban particulate matter – a case study of Radom, Poland

Monika Łożyńska, Marzena Trojanowska, Artur Molik, and Ryszard Świetlik

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Short summary
An assessment of chromium occurrence in particulate matter – PM10, PM2.5, PM1, and PM0.25 – in the city of Radom during the calendar year was presented. The seasonality of both pseudo-total chromium content and its valence speciation was examined. The seasonality of changes in Crtot and Cr(VI) concentrations was observed. There was a maximum in the winter season, most likely due to the greater share of fuel combustion sources. Regardless of the season, the risk levels for Radom residents were within the acceptable risk range.
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