[Effects on fine particles by the continued high temperature weather in Beijing].
The continued high temperature weather (CHTW) appeared in Beijing since June 23 1999. The measurements showed the PM2.5 mass concentrations were 2 to 3 times of that in non-CHTW period. However the diffusion conditions were still fine in these days. Both the highest hourly concentrations of O3 and the SO4(2-) composition in PM2.5 can identify that the photochemical action was very active. It is the very reason to produce more fine particles in atmosphere.
Song
Yu
Y
State Key Joint Laboratory of Environmental Simulation and Pollution Control, Center for Environmental Sciences, Peking University, Beijing 100871.
Tang
Xiaoyan
X
Zhang
Yuanhang
Y
Hu
Min
M
Fang
Chen
C
Zen
Liming
L
Wang
Wei
W
D000393:Air Pollutants / Q000032:analysis*; D002681:China; D006358:Hot Temperature; D010126:Ozone / Q000032:analysis; D010316:Particle Size; D013431:Sulfates / Q000032:analysis; D014887:Weather
D000393:Air Pollutants; D013431:Sulfates; D010126:Ozone