Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:p-atmospheric pressure
Station:1013 - Sneznik
Code:CZDCCMSNE
Institution:Czech Hydrometeorological Institute
Region:Severocesky
District:Decin
IHd: 150
Measure method:atmospheric pressure measurement
Unit:hPa

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 943 948 944 938 943 942 944 942 946 956 957 950 942 945 950 946 931 931 943 936 935 928 936 942 947 947 943 934 918 930 939 941.19 956.96 31.00
2 938 936 949 950 948 942 935 925 937 940 947 941 936 938 930 921 927 925 926 942 948 944 945 941 944 950 948 939 930 ~ ~ 938.68 950.27 29.00
3 924 936 925 937 949 944 939 934 934 941 933 945 944 934 939 940 940 944 947 945 942 937 933 934 935 929 928 933 930 923 925 936.24 948.61 31.00
4 926 925 916 915 929 945 946 941 934 927 917 917 922 923 921 923 926 929 931 935 935 932 927 930 935 933 932 930 936 938 ~ 929.16 946.36 30.00
5 937 939 938 937 936 936 936 936 937 936 936 942 944 944 940 935 930 928 928 930 928 935 939 935 934 934 934 929 934 934 940 935.43 943.70 31.00
6 942 939 938 937 933 936 941 941 937 934 935 945 942 940 ~ 943 949 945 941 936 934 935 936 933 935 939 938 936 937 932 ~ 938.20 948.85 29.00
7 930 931 928 926 933 937 930 932 924 918 921 931 930 923 927 931 936 935 935 937 938 936 933 926 926 929 933 930 934 940 942 930.93 942.11 31.00
8 939 936 937 939 940 937 938 938 939 935 934 935 939 939 938 935 933 935 934 932 933 941 942 939 940 938 936 939 938 934 ~ 937.09 942.16 30.00
9 925 924 928 938 940 931 934 942 943 941 937 932 931 936 934 927 929 932 931 931 937 945 946 943 943 942 937 932 927 926 ~ 934.75 945.91 30.00
10 924 932 941 939 934 941 943 938 929 920 915 925 932 935 930 934 943 945 943 945 949 950 945 939 930 932 938 936 935 923 924 935.16 950.10 31.00
11 927 926 923 931 931 912 912 922 932 940 942 932 926 929 936 934 931 935 927 928 929 934 928 929 925 922 935 935 934 937 ~ 929.46 941.78 30.00
12 935 936 937 937 937 935 930 930 934 933 939 935 930 921 916 921 930 936 942 945 943 937 927 919 913 910 911 912 916 918 931 928.92 944.72 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 91 91 91 91 91 91 91 91 91 957
REL. 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.011.1
ID 0 0 0 0 0 0 06250062500
ABS. 0 0 0 0 0 0 0 90 90 90 90 90 90 90 90 90 949
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 17.6
ID 0 0 0 0 0 0 06250062500
ABS. 0 0 0 0 0 0 0 91 91 91 91 91 91 91 91 91 946
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 23.9
ID 0 0 0 0 0 0 06250062500
ABS. 0 0 0 0 0 0 0 92 92 92 92 92 92 92 92 92 950
REL 0.0 0.0 0.0 0.0 0.0 0.0 0.0100.0100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.022.10
ID 0 0 0 0 0 0 06250062500
Year
ABS. 0 0 0 0 0 0 0 364 364 364 364 364 364 364 364 364 957
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 11.1
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