Civil Engineering Reference
In-Depth Information
Chomobyl NPP
Vesniane
80.0 Chystogalivka
100000.0
Chernobyl
100.0
kBq/m
2
Ci/km
2
Domanivka
Gornostaipil
3.6
14.4
15
0,405
Oster
Kozelets
Liubymivka
5.0
Rudnia-Talska
4.4
10
0,27
Sosnivka
Dymer
3.2
Kalyta
Myrcha
1. 5
Borodianka
4.2
Litochky
Markivtsi
Lebedivka
3.1
0,162
6
Liutizh
4.0
St.Basan
4.9
Pukhivka
V. Dymerka
Khotianivka
KYIV
3
0,081
Pogreby
2.6
4.4
Irpin
Gogoliv
Brovary
Makariv
Sytniaky
3.2
1. 3
1
0,027
Senkivka
3.0
2.4
Shpytky
Bortnychi
Baryshivka
0.4
Veselynivka
2.0
Boryspil
3.3
0
0
Vyshenky
1. 5
Glevakha Khodosivka
Kozyn
Protsiv
2.8
Vasylkiv
1. 7
Golovuriv
Borova
V. Guliaky
St.Bezradichi
0
10 0
0.5
km
0.8
Figure 2.6
Calculated accumulation of
137
Cs in the geological environment of Quaternary
and Eocene deposits (depth to 65 m) per unit area within the Kyiv province according to
measurements performed in 2001.
However, the available information already enables researchers to obtain a
preliminary calculation of
137
Cs accumulated per unit area (in Bq/m
2
or Ci/km
2
)
in the upper geological medium below the soil layer. Such a calculation was per-
formed in 2001 for the majority of the Kyiv province area to depth 80 m. Within
the CEZ area, the assessment depth varied from 25 to 60 m. The obtained distri-
bution of accumulated
137
Cs activity per unit area is shown in Figure 2.6. The
highest accumulation (over 15 kBq/m
2
) corresponds to the most contaminated
parts of the CEZ. The area of relatively increased accumulated contamination
stretches in the south direction from the Chernobyl NPP, reaching 3-6 kBq/m
2
near Kyiv City (Figure 2.6).
The ratio of the above accumulation of
137
Cs in the geological medium to the
initial surface contamination density plotted for the same area of the Kyiv prov-
ince is shown in Figure 2.7. Close to Kyiv and its satellite settlements (Ghulyany,
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