Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:p-atmospheric pressure
Station:1001 - Chomutov
Code:CZCVCMCHO
Institution:Czech Hydrometeorological Institute
Region:Ustecky
District:Chomutov
IHd: 150
Measure method:atmospheric pressure measurement
Unit:hPa

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 977 979 988 987 985 978 979 984 987 985 983 980 980 978 972 973 973 969 964 961 959 958 954 951 964 957 956 964 969 966 965 971.76 987.97 31.00
2 972 976 970 969 956 955 966 965 954 956 954 957 964 976 980 976 967 964 958 939 960 950 943 953 951 945 948 952 ~ ~ ~ 959.93 979.84 28.00
3 958 959 965 966 959 952 959 970 958 966 967 965 960 961 965 966 963 955 951 958 961 965 972 978 978 977 980 979 974 968 965 965.10 979.98 31.00
4 966 967 963 958 960 966 970 969 966 963 955 946 947 953 959 961 964 966 967 977 980 977 972 969 964 951 958 954 956 960 ~ 962.70 980.44 30.00
5 955 954 954 955 962 969 967 961 957 955 956 961 963 967 973 967 959 961 966 963 957 953 951 958 960 957 953 956 964 970 971 960.54 972.60 31.00
6 971 968 960 957 951 948 948 955 955 958 965 965 963 965 964 967 969 967 968 966 968 967 966 971 973 966 958 961 966 961 ~ 962.90 972.69 30.00
7 956 956 954 962 963 962 965 963 958 959 970 967 962 965 963 957 955 960 963 963 959 963 960 958 962 966 970 969 965 958 955 961.51 969.72 31.00
8 957 962 961 960 960 959 960 959 953 950 948 949 962 966 965 966 965 964 966 963 962 964 965 967 968 964 961 962 965 966 966 961.37 968.23 31.00
9 974 974 966 961 962 964 962 963 961 964 971 972 969 962 964 963 962 962 963 963 960 953 958 964 961 961 970 976 977 975 ~ 965.25 977.37 30.00
10 973 971 967 968 961 956 963 963 964 963 963 961 962 960 958 951 949 956 965 966 953 946 951 962 953 961 955 971 966 965 968 960.97 972.80 31.00
11 965 962 958 963 975 970 959 956 945 956 954 959 950 944 946 946 961 960 957 961 951 949 959 960 956 963 966 964 961 963 ~ 958.02 975.17 30.00
12 959 955 960 963 968 973 977 980 981 979 979 976 977 974 969 965 967 977 978 969 966 961 968 971 971 964 954 952 950 946 964 967.56 981.06 31.00

Quarterly and annual absolute and relative frequency of average daily concentrations
partial and total air pollution indexes according to classes of IHd multiples

Quarter

concentration classes in IHd multiples

total ind.

part of it in IHd multiples

max.
date

<=1/3 <=2/3 <=1.0 <=1.5 <=2.0 <=3.0 <=4.0 > 1/32/31.01.52.0 3.04.0

concentration classes in measurement units

part of above IHd multiples in meas. units

0- 50 51- 100 101- 150 151- 225 226- 300 301- 450 451- 600 over 600 50 100 150 225 300 450 600
ABS. 0 0 0 0 0 0 0 90 90 90 90 90 90 90 90 90 988
REL. 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.03.1
ID 0 0 0 0 0 0 06250062500
ABS. 0 0 0 0 0 0 0 91 91 91 91 91 91 91 91 91 980
REL. 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 21.4
ID 0 0 0 0 0 0 06250062500
ABS. 0 0 0 0 0 0 0 92 92 92 92 92 92 92 92 92 977
REL. 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 29.9
ID 0 0 0 0 0 0 06250062500
ABS. 0 0 0 0 0 0 0 92 92 92 92 92 92 92 92 92 981
REL 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 9.12
ID 0 0 0 0 0 0 06250062500
Year
ABS. 0 0 0 0 0 0 0 365 365 365 365 365 365 365 365 365 988
REL. 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 3.1
ID 0 0 0 0 0 0 06250062500

Note:

1 frequency < 60 per quarter, or < 240 per annum
2 frequency < 30 per quarter, or < 120 per annum