Table 1.
Ranking of areas within the Bryansk region by the level of radiation and chemical pollution (2000–2017).
| N | Districts of the Bryansk region | Main gaseous air pollutants |
Cs-137 contamination density, kBq/m2 | Sr-90 contamination density, kBq/m2 | Average annual effective dose, mSv | ||||
|---|---|---|---|---|---|---|---|---|---|
| Total | Of them: |
||||||||
| VOC∗ |
NOx |
SO2 |
CO |
||||||
| Gross emissions of gaseous pollutants per area, g/m2 | |||||||||
| Ecologically safe territories (control) | |||||||||
| 1 | Kletnyansky (n = 20861) |
22.6 | 0.7 | 6.6 | 7.2 | 8.0 | 5.5 | 0.5 | <0.1 |
| Mglinsky (n = 20382) |
28.6 | 5.4 | 8.8 | 1.9 | 12.4 | 6.8 | 0.6 | <0.1 | |
| Territories of chemical pollution | |||||||||
| 2 | Dyatkovsky (n = 76012) |
9460 | 346 | 3790 | 2000 | 3310 | 39.3 | 1.1 | 0.2 |
| Bryansk city (n = 439901) |
29600 | 3620 | 10700 | 2660 | 12600 | 9.0 | 6.1 | <0.1 | |
| Territories of radioactive contamination | |||||||||
| 3 | Novozybkovsky (n = 12849) |
9.0 | 5.0 | 0.5 | 0.0 | 2.3 | 470 | 8.6 | 2.1 |
| Krasnogorsky (n = 14472) |
18.0 | 0.7 | 7.5 | 0.7 | 9.1 | 310 | 9.5 | 1.4 | |
| Gordeevsky (n = 12526) |
39.6 | 3.0 | 16.8 | 0.0 | 19.8 | 335 | 5.1 | 1.3 | |
| Zlynkovsky (n = 13180) |
56.2 | 4.1 | 17.3 | 7.2 | 27.6 | 421 | 16.7 | 1.8 | |
| Klimovsky (n = 31273) |
66.1 | 1.1 | 10.6 | 20.5 | 33.9 | 142 | 6.5 | 0.7 | |
| Territories of combined radiation-chemical contamination | |||||||||
| 4 | Klintsy city (n = 71915) |
8170 | 1330 | 3650 | 165 | 3020 | 200 | 3.0 | 1.2 |
| Novozybkov city (n = 41608) |
8220 | 1080 | 3180 | 771 | 3180 | 466 | 10.0 | 2.0 | |
∗
Volatile organic compounds (VOC).