CYTOGENETIC AFTER-EFFECTS OF MUTAGEN SOIL CONTAMINATION WITH EMISSIONS OF BURSHTYNSKA THERMAL POWER STATION - Ecological Consequences of Increasing Crop Productivity - page 221

TABLE 21.1 Frequency of chromosome aberrations in winter wheat when mutagen soil
pollution occurs in the area of Burshtynska TPS

Mitosis with disorders and
chromosome aberrations

Studied

Sampling location

Roots Mitosis anatelophase Pieces (%)

'Albatross odesskyi'

Svatky
Poltava region (control)

24 1291 7 0.54 ± 0.22

1 km from TPS 18 1195 12 1.00 ± 0,29

3 km from TPS 18 1282 13 1.01 ± 0.28

5 km from TPS 24 1248 17 1.36 ± 0.33*

12 km from TPS 18 1328 15 1.12 ± 0.29

Ash-disposal area no 1 15 1101 18 1.63 ± 0.38*

'Zymoiarka'

Svatky
Poltava region (control)

24 1200 9 0.75 ± 0,25

1 km from TPS 15 1496 22 1.47 ± 0.10*

3 km from TPS 16 1047 19 1.82 ± 0.41*

5 km from TPS 18 1350 23 1.70 ± 0.35*

12 km from TPS 18 1098 12 1.10 ± 0.31

Ash-disposal area no 1 15 1063 14 1.32 ± 0.35

Note: *Difference with control statistically certain when Р < 0.05

21.3.2 SPECTRUM OF CHROMOSOME ABERRATIONS
The spectrum of chromosome aberrations that were induced by emissions of
Burshtynska TPS, absorbed by the soil in 3 and 5 km zone, included mostly singu-
lar and pair/double acentric fragments and dicentric bridges (Figures 21.1 and 21.2).
Types of chromosome disorders with the effect of the soil taken at a distance of 1-12
km from the contamination source were presented by singular and double/pair frag-
ments and chromatic bridges (Table 21.2). Cells with pair fragments and chromosome
bridges occurred very rarely. The frequency of the cells with plural aberrations was
0.07-0.29 percent, and their emergence was due to the factors of soil pollution in a
3-km zone (Figure 21.3).