Detailed overview of ambient air pollution valuis from individual stations

Year: 2002
Pollutant:p-atmospheric pressure
Station:1028 - Nepomysl
Code:CZLNCMNEP
Institution:Czech Hydrometeorological Institute
Region:Ustecky
District:Louny
IHd: 150
Measure method:atmospheric pressure measurement
Unit:hPa

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 972 973 982 982 979 973 973 977 980 978 976 974 974 972 965 966 966 962 958 954 950 948 944 940 956 946 944 954 958 955 955 964.05 982.03 31.00
2 961 966 963 960 946 943 956 955 943 946 943 944 951 966 970 966 957 953 949 929 951 941 934 944 941 931 935 942 ~ ~ ~ 949.48 969.70 28.00
3 949 953 959 958 952 942 949 962 949 957 957 955 949 951 957 955 951 944 940 946 949 955 965 971 971 970 973 971 966 958 955 956.12 972.50 31.00
4 956 957 953 950 951 959 962 961 956 952 943 934 936 941 948 952 955 956 957 966 971 967 960 959 954 939 948 943 946 948 ~ 952.67 970.64 30.00
5 944 942 942 943 953 958 955 948 944 944 944 949 951 955 961 954 946 949 956 952 945 941 940 948 948 948 943 946 953 959 958 948.94 960.57 31.00
6 959 956 948 944 936 937 938 945 943 946 953 952 950 952 950 955 955 953 953 951 954 953 952 958 960 954 946 950 958 950 ~ 950.37 960.38 30.00
7 943 945 941 951 950 949 952 950 943 946 958 954 947 951 948 942 940 947 951 950 946 951 946 945 950 954 957 955 950 944 940 948.29 957.60 31.00
8 941 948 947 946 947 945 946 945 940 935 932 934 946 950 950 ~ ~ ~ 952 949 948 950 952 953 954 950 946 948 950 952 951 946.74 953.91 28.00
9 962 961 952 948 951 950 949 950 948 951 958 960 957 949 953 952 950 950 950 952 949 942 947 953 951 949 959 966 967 965 ~ 953.43 966.82 30.00
10 964 959 956 958 951 946 953 952 952 951 954 953 954 950 947 939 937 946 956 958 945 934 939 953 942 952 942 966 957 955 958 950.88 965.95 31.00
11 954 951 951 955 970 963 954 950 940 950 946 950 942 937 937 936 953 951 947 953 943 940 951 954 946 952 955 952 950 955 ~ 949.60 970.01 30.00
12 951 949 953 953 961 968 971 975 976 975 975 971 971 968 964 960 962 972 974 964 961 955 962 965 966 959 950 947 944 937 959 961.88 976.39 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 90 982
REL. 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.04.1
ID 0 0 0 0 0 0 06250062500
ABS. 0 0 0 0 0 0 0 91 91 91 91 91 91 91 91 91 971
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 89 89 89 89 89 89 89 89 89 967
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 92 976
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 0 362 362 362 362 362 362 362 362 362 982
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 4.1
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