Table 1.
Number of meteorological and radiation measurements performed in Belarus, 26 April – 31 July 1986.
| Type of information | Number of results of measurements performed in
|
||||||
|---|---|---|---|---|---|---|---|
| Brest Oblast | Gomel Oblast | Grodno Oblast | Minsk Oblast | Mogilev Oblast | Vitebsk Oblats | Entire country | |
| Meteorological: | |||||||
| Winda and temperatureb | 873 | 934 | 582 | 1,067 | 582 | 1,067 | 5,105 |
| Description of precipitation events | 2,237 | 1745 | 1,376 | 2,649 | 1,599 | 3,001 | 12,607 |
| Precipitationc observed at | |||||||
| - Meteorological stations | 324 | 327 | 211 | 390 | 235 | 414 | 1,901 |
| - Posts (meteorological, hydrological, expedition) | 431 | 641 | 221 | 541 | 355 | 415 | 2,604 |
| - Total | 755 | 968 | 432 | 931 | 590 | 829 | 4,505 |
|
| |||||||
| Radiation measurements: | |||||||
| Exposure rate in air | 1,156 | 2,385 | 797 | 467 | 1,045 | 201 | 6,051 |
| Air concentration | - | - | - | 19 | - | - | 19 |
| Daily fallout of 131I and other radionuclides | 77 | 24 | 24 | 25 | 19 | 18 | 187 |
| Gamma-spectrometry measurementsd of | |||||||
| - soil | 458 (99) | 4,025 (2,203) | 7 (6) | 115 (43) | 1,627 (929) | 1 (−) | 6,233 (3,280) |
| - grass | 33 (13) | 330 (230) | 13 (12) | 19 (15) | 168 (83) | - | 563 (353) |
| - cow’s milk | 4 (4) | 130 (129) | 6 (6) | 8 (8) | 6 (6) | - | 154 (153) |
| - water | 3 (1) | 46 (31) | - | 3 (2) | 5 (3) | - | 57 (37) |
| Total beta activity in cow’s milke | 1,142 (768) | 22,540 (11,150) | - | - | 1,848 (996) | - | 25,530 (12,914) |
| 131I concentration in milk derived from the total beta-activity measurements in milk | 479 | 18,838 | - | - | 1,707 | - | 21,024 |
a
Average for the day
b
Average, minimal and maximal temperature observed during the day
c
Number of measurements with non-zero precipitation amounts
d
Number of records with measured non-zero 131I is given in parentheses.
e
Total beta-activity was measured through 30 June 1986. Number of measurements done before 1 June 1986 is given in parentheses