Environmental Engineering Reference
In-Depth Information
TABLE 18.5
Volume Activity of  131 I, Phase Composition I and Ru in the Atmosphere above 
Ukraine, Belarus, and Russia and from a Research Ship in May 1986
Portion of Gaseous 
Component (%)
131 I
Sampling 
Velocity 
(m/s)
Time of 
Sampling 
(h)
Sampling 
Date (1986)
Concentration 
131I (Bq/m 3 )
Sampling Site
103 Ru
06 Ru
May 8
Above the reactor
0.9-1.2
1
5000
30
11.3
16
May 14
160
28
2.6
4
May 15
1.5
58
0.6
2.7
May 16
350
59
3.9
2.9
May 17
17
72
2.3
May 19
136
91
13
12.2
May 14
Ukraine, Belarus, Russia,
north of Chernobyl
0.9-1.2
1-2
0.34
57
0.7
May 16
1.5
46
2.2
2.7
May 17
1.7
77
4
3.5
May 19
0.81
90
8
12
May 4-5
Atlantic, North, and
Baltic Sea
1.0
31
0.008
79
May 5-6
25
0.015
84
23
May 6-7
18
0.034
90
18
May 7-9
44
0.031
73
2
7
May 10-11
27
0.001
79
Prague (Czechia)
Redz (Czechia)
Darmstadt (Germany)
Neuherberg-1 (Germany)
Neuherberg-2 (Germany)
Vilnius (Lithuania)
Bratislava (Slovakia)
Budapest (Hungary)
Paks (Hungary)
Nurmijarvi (Finland)
Konala (Finland)
Studswik (Sweden)
Warsaw (Poland)
Gottingen (Germany)
St. New York (USA)
St. Nevada (USA)
St. California (USA)
St. Utah (USA)
St. Wyoming (USA)
Kumatori (Japan)
Tokai (Japan)
Tsukuba (Japan)
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
5
10 15 20 25 30 35 40 45 50 55 60
Time after the accident (days)
FIGURE  18.6  Results of global monitoring of a gaseous component of 131 I of Chernobyl origin. (From
Ogorodnikov, B.I., At. Energy , 93, 42, 2002.)
 
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