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<p>Ulaanbaatar, the capital city of Mongolia, is the one of polluted cities in the world. The negative health effects of air pollution such as mortality, morbidity and other symptoms have been widely reported. Particulate matter (PM) is major contributing factor for health issues and is mainly produced from coal and biomass combustion, and vehicle emissions. This study aims to evaluate the concentrations of PM<sub>2.5</sub>, PM<sub>10</sub> and polycyclic aromatic hydrocarbons (PAHs) in the samples collected in Ulaanbaatar from 2017 to 2022. The seasonal change of concentrations and the primary source of PAHs were obtained. The primary sources of PAHs in air particulates were found to be biomass and coal combustion. In addition, the cancer risk assessment associated with PAHs in PM<sub>2.5</sub> and PM<sub>10</sub> has been carried out. It should be well noted from this study that PM<sub>10</sub> poses higher cancer risk than PM<sub>2.5</sub> in the winter in Ulaanbaatar city.</p>

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Risk assessment of polycyclic aromatic hydrocarbons in airborne particulates of Ulaanbaatar City, Mongolia

  • 期刊论文

  • 发表日期：

    2025年10月28日

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  • Javzandolgor Tserendorj,
  • Jajinjav Yondonjamts,
  • Bolortuya Damdinsuren,
  • Shagjjamba Dagva,
  • Bayanjargal Unenbat,
  • Sukhbaatar Batchuluun,
  • Yared Beyene,
  • Shouta M. M. Nakayama,
  • Mayumi Ishizuka,
  • Chinzorig Radnaabazar,
  • Yoshinori Ikenaka,
  • Munkhbat Byambajav

摘要

Ulaanbaatar, the capital city of Mongolia, is the one of polluted cities in the world. The negative health effects of air pollution such as mortality, morbidity and other symptoms have been widely reported. Particulate matter (PM) is major contributing factor for health issues and is mainly produced from coal and biomass combustion, and vehicle emissions. This study aims to evaluate the concentrations of PM2.5, PM10 and polycyclic aromatic hydrocarbons (PAHs) in the samples collected in Ulaanbaatar from 2017 to 2022. The seasonal change of concentrations and the primary source of PAHs were obtained. The primary sources of PAHs in air particulates were found to be biomass and coal combustion. In addition, the cancer risk assessment associated with PAHs in PM2.5 and PM10 has been carried out. It should be well noted from this study that PM10 poses higher cancer risk than PM2.5 in the winter in Ulaanbaatar city.