[Inter-comparison of WPS-TEOM-MOUDI and investigation on particle density].
Three aerosol samplers and analyzers were used to characterize aerosol size and mass at two sites downwind of Shanghai and Beijing urban center in summer 2005. Inter-comparison was performed for the mass concentration determined by WPS, TEOM and MOUDI. The data got from TEOM and WPS showed the correlation factor of 0.77 and 0.79. And strong correlation has been found during the hour when coarse mode particles were dominated (R = 0.91 and 0.84). Also, comparison between data from WPS and MOUDI showed good correlation in difference size ranges (R ranged from 0.76 to 0.92) except the minimum stage. The particle densities at the two sites were determined based on the observed real time PM2.5 mass concentration and particle mass distribution data, respectively. The density of particles in Shanghai site was found to be around 1.70 g x cm(-3) while the Beijing site had a value of 1.50 g x cm(-3).
Gao
Jian
J
Environment Research Institute, Shandong University, Ji' nan 250100, Chin.
Zhou
Yang
Y
Wang
Jin
J
Wang
Tao
T
Wang
Wen-xing
WX
D000336:Aerosols / Q000032:analysis* / Q000737:chemistry; D000397:Air Pollution / Q000032:analysis*; D002681:China; D002947:Cities; D004784:Environmental Monitoring / Q000295:instrumentation* / Q000379:methods; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis* / Q000737:chemistry
D000336:Aerosols; D052638:Particulate Matter