Impact of long-range transport on black carbon source contribution and optical aerosol properties in two urban environments

Minderytė, Agnė; Ugboma, Emeka A.; Mirza Montoro, Fátima Francisca; Stachlewska, Iwona S.; Byčenkienė, Steigvilė

doi:10.1016/j.heliyon.2023.e19652

Heliyon

2023

DOI: 10.1016/j.heliyon.2023.e19652

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Impact of long-range transport on black carbon source contribution and optical aerosol properties in two urban environments

Agnė Minderytė,

Emeka A. Ugboma,

Fátima Francisca Mirza Montoro

et al.

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2024

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Cited by 3 publications

References 62 publications

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Synergic use of in-situ and remote sensing techniques for comprehensive characterization of aerosol optical and microphysical properties

Davulienė,

Janicka,

Minderytė

et al. 2024

Science of The Total Environment

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Synergic use of in-situ and remote sensing techniques for comprehensive characterization of aerosol optical and microphysical properties

Davulienė,

Janicka,

Minderytė

et al. 2024

Science of The Total Environment

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Understanding the Dynamics of Source-Apportioned Black Carbon in an Urban Background Environment

Pashneva,

Minderytė,

Davulienė

et al. 2024

Atmosphere

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This study aims to delineate the characteristics of black carbon (BC) in the atmosphere over the urban background environment in Vilnius (Lithuania) from 1 June 2021 to 31 May 2022 using aethalometer (Magee Scientific) measurements. The annual mean concentrations of BC originating from fossil fuels (BCff) and from biomass burning (BCbb) were found to be 0.63 μg m−3 with a standard deviation (SD) of 0.67 μg m−3 and 0.27 µg m−3 (0.35 μg m−3). The further findings highlight the dominance of fossil-fuel-related BC throughout the study period (71%) and the seasonal variability of BC pollution, with biomass-burning-related BC making the largest contribution during the summer season (41%) and the smallest contribution during autumn (23%). This information provides valuable insights into the sources and dynamics of BC pollution in the region. The sources and composition of BC on the days with the highest pollution levels were influenced by a combination of local and regional factors in every season. Additionally, this study employs an advanced approach to understanding urban BC pollution by focusing on high-pollution days (18), identified based on a daily mean BC mass concentration exceeding the 95th percentile, alongside an analysis of overall seasonal and diurnal variations. This methodology surpasses many those of previous urban BC studies, offering a comprehensive examination of the sources and composition of BC pollution.

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Variations of black carbon, particulate matter and nitrogen oxides mass concentrations in urban environment with respect to winter heating period and meteorological conditions

Pashneva,

Minderytė,

Davulienė

et al. 2024

physics

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The atmospheric concentrations of particulate pollution are of great scientific concern due to their impact on both human health and environment. This study aimed to investigate the concentration of black carbon (BC), particulate matter with an aerodynamic diameter of less than 10 micrometres (PM10) and nitrogen oxides (NOx) at an urban background environment throughout the year, and understand the impact of winter heating and meteorology on its concentration level. The campaign covered heating and non-heating periods, from 1 June 2021 to 31 May 2022. During the heating period, the mass concentrations of BC, PM10 and NOx were 1.17, 24.9 and 19.4 µg m–3, respectively. The analysis revealed that the mass concentrations of BC and NOx were 1.9 and 1.4 times greater during the heating period, respectively, compared to the non-heating period. In contrast, PM10 remained almost constant during the heating (19.4 µg m–3) and non-heating periods (20.0 µg m–3). Throughout the year, the BC mass concentration was dominated by BCFF (71.2%) originating from fossil fuel combustion with a maximum (8.43 µg m–3) during the heating period. Moreover, wind speed presented a weak negative correlation with BC (r = –0.40), PM10 (r = –0.19) and NOx (r = –0.40) during the heating period.

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Impact of long-range transport on black carbon source contribution and optical aerosol properties in two urban environments

Cited by 3 publications

References 62 publications

Synergic use of in-situ and remote sensing techniques for comprehensive characterization of aerosol optical and microphysical properties

Synergic use of in-situ and remote sensing techniques for comprehensive characterization of aerosol optical and microphysical properties

Understanding the Dynamics of Source-Apportioned Black Carbon in an Urban Background Environment

Variations of black carbon, particulate matter and nitrogen oxides mass concentrations in urban environment with respect to winter heating period and meteorological conditions

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