Chemical Characterization and Sources Identification of PM10 Aerosols in an Industrial Area

Enoch K. Adotey, Darkhan Kozhabai, Olzat Toktarbaiuly, Munziya Abutalip, Bakhytzhan Baptayev, Lyazzat Tastanova, Amirbek Bekeshev, Dhawal Shah, Nurxat Nuraje, Mannix Balanay, Mehdi Amouei Torkmahalleh

Research output: Contribution to journalArticlepeer-review

Abstract

Daily PM10 samples were collected on a rooftop at Aktobe City, the industrial hub of Western Kazakhstan, to characterize, investigate the morphological composition, and identify possible sources. The mean of 50.2 (standard deviation of 38.9) µg/m3 for PM10 in fall was 4 times statistically significantly higher than in winter 13.2 (11.9) µg/m3. The ionic constituents show that Ca2+, K+, Mg2+, and SO4 2– were statistically significantly higher in fall than in winter, possibly due to higher humidity and wet deposition. Meanwhile, high wind speed recorded in winter promoted good dispersion and a shorter contact time for gas-liquid reactions, resulting in a lower SO4 2– concentration than in fall. A high amount of NO3 − in winter showed a significant correlation for all cations except for Na+. Trace metal analyses showed that Fe exhibited the highest average concentrations of 1287.93 ng/m3 in fall, while Al had the highest mean concentration of 207.61 ng/m3 in winter. Pollutant sources were found in the East-Southeast, Southeast-South, and Southwest-West directions within 6-8 m/s wind speed for several metals, indicating distant sources. The study shows several potential sources of PM10 and the need to regularly monitor pollutant concentrations and emission trends over time to assess the air quality of Aktobe city.

Original languageEnglish
Article number1312
JournalES Energy and Environment
Volume26
DOIs
Publication statusPublished - Dec 2024

Keywords

  • Air pollution
  • Inductively coupled plasma mass spectrometry (ICP-MS)
  • Kazakhstan
  • Morphology
  • Teflon filter

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Engineering
  • Materials Science (miscellaneous)

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