Monthly and annual average concentrations and supplementary air pollution characteristics

District: Praha 4

Year: 1998
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
774 - Pha4-Libus
 		CZ04CMLIB
CHMI
Xm: 31 40 58 67 76 67 58 71 40 31 25
32
186
89
49
50
43
362
mc: 31 28 31 29 31 30 31 31 30 29 30 31
12.08.
0.83
102
23.48
1.83
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.