Scholarlink

<p>Užice, a town in Western Serbia, is surrounded by hills and mountain slopes and it is located in the river valley. The heating is mainly based on fossil fuels; wood; biomass, and vehicle exhaust releases a lot of PM10, PM2.5, ultrafine particles, and sometimes benzo(a)pyrene, so agglomeration is classified as the 3<sup>rd</sup> level polluted. High humidity leads to fog and haze, which may contain carbonaceous, silicate, S- and <i>N</i>-based, biological particles that negatively impact human health. The fog/haze, PM particles and soot are major problems in town, especially during winter to human health. This study examines PM10, PM2.5, and PM1 fractions, emphasizing the morphology, chemical composition, and the size of particles. Special attention is given to the PM2.5 particles. The average annual PM2.5 particle mass concentrations were 41, 32&#xa0;μg/m<sup>3</sup> during 2022, 2023, respectively. The winter PM particles during fog analyzed in December 2022. The spring haze occurred during March and April in 2023, so PM particles analyzed with constituents: soot, ash, silicate, metals, during rapid weather changes. The identified elements in PM2.5 particles were: C, O, H, S, N, Ca, Si, Al, Mg, K, Fe. The mass concertation and composition of PM2.5 “urban” particles are the most abundant during winter. The particles are more abundant in urban areas, compared to the suburb areas. Specially projected sintered filters, adjusted in chemical composition with addition of waste powder for enhanced performance, will adsorb PM particles in chimney heating plant.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Characterization of PM particles during fog/haze in Užice, Serbia: novel approach in purification

  • 期刊论文

  • 发表日期：

    2025年8月31日

查看全文
  • M. Cvijović,
  • F. Rajković,
  • M. Murić,
  • S. Mitričević,
  • A. Čudić,
  • S. Petrović,
  • V. Čudić,
  • M. Kremić

摘要

Užice, a town in Western Serbia, is surrounded by hills and mountain slopes and it is located in the river valley. The heating is mainly based on fossil fuels; wood; biomass, and vehicle exhaust releases a lot of PM10, PM2.5, ultrafine particles, and sometimes benzo(a)pyrene, so agglomeration is classified as the 3rd level polluted. High humidity leads to fog and haze, which may contain carbonaceous, silicate, S- and N-based, biological particles that negatively impact human health. The fog/haze, PM particles and soot are major problems in town, especially during winter to human health. This study examines PM10, PM2.5, and PM1 fractions, emphasizing the morphology, chemical composition, and the size of particles. Special attention is given to the PM2.5 particles. The average annual PM2.5 particle mass concentrations were 41, 32 μg/m3 during 2022, 2023, respectively. The winter PM particles during fog analyzed in December 2022. The spring haze occurred during March and April in 2023, so PM particles analyzed with constituents: soot, ash, silicate, metals, during rapid weather changes. The identified elements in PM2.5 particles were: C, O, H, S, N, Ca, Si, Al, Mg, K, Fe. The mass concertation and composition of PM2.5 “urban” particles are the most abundant during winter. The particles are more abundant in urban areas, compared to the suburb areas. Specially projected sintered filters, adjusted in chemical composition with addition of waste powder for enhanced performance, will adsorb PM particles in chimney heating plant.