Monthly and annual average concentrations and supplementary air pollution characteristics

District: Praha 1

Year: 1999
Pollutant: O3-ozone
Unit: ug/m^3
IH8h:160

Station Code
Institution 		Monthly Characteristics Yearly Characteristics
123456789101112MAX8h
DAT.		95%kv
č.p.% 		50%kv
98%kv		X
S		XG
SG		N
dv
771 - Pha1-nam. Republiky
 		CZ01CMREP
Czech Hydrometeorological Institute
Xm: 20 32 31 47 60 52 57 48 38 20 10
22
129
70
36
36
30
364
mc: 31 28 31 30 30 30 31 31 30 31 30 31
17.07.
0.00
75
19.55
2.00
1

This set is specific for ozone. The column MAX8h DAT. gives the values of maximum daily 8hr mean in the time period 9:00 to 17:00 UTC. Similarly the annual relative frequencies of exceedence is related to 8hr averages and to the respective limit. Further entries are equivalent with those of the other measured substances.