[Characteristics and sources of trace elements in ambient PM2.5 in Beijing].

@article{Yang2003CharacteristicsAS,
  title={[Characteristics and sources of trace elements in ambient PM2.5 in Beijing].},
  author={Fumo Yang and Kebin He and Yongliang Ma and Xu Chen and Steven H Cadle and Chan Tai and Patricia A Mulawa},
  journal={Huan jing ke xue= Huanjing kexue},
  year={2003},
  volume={24 6},
  pages={33-7}
}
To understand concentration levels and sources of trace elements in PM2.5(particulate matter with aerodynamic diameters less than 2.5 microns) concentration and composition in the ambient air of Beijing, weekly samples were simultaneously collected for one year in Chegongzhuang and Qinghuayuan. Trace elements exhibited similar significant weekly variations… CONTINUE READING