Data for fitting of GAM
We obtained daily SO
2
,NO
2
and PM
concentration
data from the Lanzhou Environmental Monitoring Station.
These daily data cover the 5 years from 2001 to
2005. The meteorological data are daily maximum, minimum
and average temperature, daily atmospheric pressure
and relative humidity, and were provided by the
Lanzhou Meteorological Bureau. These data are also
from 2001 to 2005. Hospital admissions data of respiratory
system diseases are from the four largest comprehensive
hospitals in the Lanzhou urban area.
10