This dataset contains the Saudi Meteorological and Environmental Protection Administration (MEPA) surface data. Files are in ASCII format. 
The first 3 letters in each filename indicate location, which is followed by month and year.


Location key:
dam=Dammam Industrial Estates
huf=Hofuf
jed=Jeddah Industrial Estates
kaf=Kafji
kuw=Air Mobile lab, Kuwait
riy=Riyadh Old Airport
soo=Al-Soodah
yan=Yanbu Royal commission

Measured parameters (all in ppm):
SO2
NO
NO2
NOx
O3
CO
H2S