Radiation doses in the air / Measurement results by the hour (Adachi)

We continuously measure radiation doses in the air (air absorbed doses per hour) at monitoring posts. Measurement results can be obtained by the minute, and we gather measurement data and then display them by the hour or by the day.

The maximum value indicates the largest value measured in each time slot (during the hour or during the day), the minimum value the smallest value measured in each time slot, and the average value is the average value for each time slot.

Shown in µGy/h (microgray per hour)

Gray indicates an amount of energy (absorbed dose) when radiation hits a material object, and 1 gray (Gy) of radiation doses in the air can be converted to 1 sievert (Sv).

Measurement time Dose rate
μGy/h (microgray per hour)
Maximum value Minimum value Average value
16:01-17:00, Fri., 23 Jan. 0.0313 0.0273 0.0293
15:01-16:00, Fri., 23 Jan. 0.0323 0.0279 0.0296
14:01-15:00, Fri., 23 Jan. 0.0320 0.0278 0.0297
13:01-14:00, Fri., 23 Jan. 0.0325 0.0271 0.0299
12:01-13:00, Fri., 23 Jan. 0.0312 0.0281 0.0299
11:01-12:00, Fri., 23 Jan. 0.0322 0.0272 0.0300
10:01-11:00, Fri., 23 Jan. 0.0326 0.0287 0.0308
09:01-10:00, Fri., 23 Jan. 0.0331 0.0289 0.0311
08:01-09:00, Fri., 23 Jan. 0.0332 0.0292 0.0308
07:01-08:00, Fri., 23 Jan. 0.0328 0.0284 0.0308
06:01-07:00, Fri., 23 Jan. 0.0330 0.0287 0.0305
05:01-06:00, Fri., 23 Jan. 0.0333 0.0279 0.0304
04:01-05:00, Fri., 23 Jan. 0.0322 0.0277 0.0300
03:01-04:00, Fri., 23 Jan. 0.0327 0.0283 0.0302
02:01-03:00, Fri., 23 Jan. 0.0328 0.0281 0.0300
01:01-02:00, Fri., 23 Jan. 0.0321 0.0279 0.0297
00:01-01:00, Fri., 23 Jan. 0.0317 0.0276 0.0300
23:01-24:00, Thu., 22 Jan. 0.0322 0.0280 0.0300
22:01-23:00, Thu., 22 Jan. 0.0324 0.0282 0.0298
21:01-22:00, Thu., 22 Jan. 0.0323 0.0270 0.0298
20:01-21:00, Thu., 22 Jan. 0.0317 0.0281 0.0296
19:01-20:00, Thu., 22 Jan. 0.0318 0.0272 0.0295
18:01-19:00, Thu., 22 Jan. 0.0318 0.0277 0.0298
17:01-18:00, Thu., 22 Jan. 0.0320 0.0278 0.0298
16:01-17:00, Thu., 22 Jan. 0.0321 0.0264 0.0294
15:01-16:00, Thu., 22 Jan. 0.0325 0.0276 0.0297
14:01-15:00, Thu., 22 Jan. 0.0315 0.0275 0.0298
13:01-14:00, Thu., 22 Jan. 0.0321 0.0275 0.0298
12:01-13:00, Thu., 22 Jan. 0.0324 0.0272 0.0298
11:01-12:00, Thu., 22 Jan. 0.0319 0.0275 0.0299
10:01-11:00, Thu., 22 Jan. 0.0315 0.0276 0.0298
09:01-10:00, Thu., 22 Jan. 0.0321 0.0269 0.0299
08:01-09:00, Thu., 22 Jan. 0.0322 0.0273 0.0298
07:01-08:00, Thu., 22 Jan. 0.0319 0.0286 0.0299
06:01-07:00, Thu., 22 Jan. 0.0318 0.0276 0.0296
05:01-06:00, Thu., 22 Jan. 0.0322 0.0276 0.0300
04:01-05:00, Thu., 22 Jan. 0.0325 0.0284 0.0301
03:01-04:00, Thu., 22 Jan. 0.0329 0.0286 0.0303
02:01-03:00, Thu., 22 Jan. 0.0332 0.0286 0.0307
01:01-02:00, Thu., 22 Jan. 0.0337 0.0286 0.0309
00:01-01:00, Thu., 22 Jan. 0.0326 0.0287 0.0307
23:01-24:00, Wed., 21 Jan. 0.0334 0.0289 0.0313
22:01-23:00, Wed., 21 Jan. 0.0314 0.0274 0.0299
21:01-22:00, Wed., 21 Jan. 0.0322 0.0272 0.0298
20:01-21:00, Wed., 21 Jan. 0.0331 0.0278 0.0298
19:01-20:00, Wed., 21 Jan. 0.0319 0.0276 0.0295
18:01-19:00, Wed., 21 Jan. 0.0317 0.0272 0.0292
17:01-18:00, Wed., 21 Jan. 0.0310 0.0272 0.0288
16:01-17:00, Wed., 21 Jan. 0.0320 0.0271 0.0291
15:01-16:00, Wed., 21 Jan. 0.0318 0.0266 0.0296
14:01-15:00, Wed., 21 Jan. 0.0316 0.0276 0.0295
13:01-14:00, Wed., 21 Jan. 0.0311 0.0273 0.0293
12:01-13:00, Wed., 21 Jan. 0.0322 0.0273 0.0295
11:01-12:00, Wed., 21 Jan. 0.0316 0.0277 0.0296
10:01-11:00, Wed., 21 Jan. 0.0318 0.0261 0.0297
09:01-10:00, Wed., 21 Jan. 0.0324 0.0272 0.0297
08:01-09:00, Wed., 21 Jan. 0.0315 0.0270 0.0296
07:01-08:00, Wed., 21 Jan. 0.0318 0.0282 0.0298
06:01-07:00, Wed., 21 Jan. 0.0319 0.0282 0.0298
05:01-06:00, Wed., 21 Jan. 0.0324 0.0276 0.0298
04:01-05:00, Wed., 21 Jan. 0.0322 0.0277 0.0296
03:01-04:00, Wed., 21 Jan. 0.0315 0.0261 0.0293
02:01-03:00, Wed., 21 Jan. 0.0324 0.0279 0.0299
01:01-02:00, Wed., 21 Jan. 0.0318 0.0279 0.0301
00:01-01:00, Wed., 21 Jan. 0.0314 0.0280 0.0298
23:01-24:00, Tue., 20 Jan. 0.0321 0.0279 0.0299
22:01-23:00, Tue., 20 Jan. 0.0321 0.0279 0.0298
21:01-22:00, Tue., 20 Jan. 0.0324 0.0280 0.0302
20:01-21:00, Tue., 20 Jan. 0.0320 0.0287 0.0301
19:01-20:00, Tue., 20 Jan. 0.0324 0.0280 0.0300
18:01-19:00, Tue., 20 Jan. 0.0330 0.0274 0.0298
17:01-18:00, Tue., 20 Jan. 0.0322 0.0273 0.0296
16:01-17:00, Tue., 20 Jan. 0.0326 0.0273 0.0298
15:01-16:00, Tue., 20 Jan. 0.0325 0.0276 0.0296
14:01-15:00, Tue., 20 Jan. 0.0322 0.0273 0.0298
13:01-14:00, Tue., 20 Jan. 0.0320 0.0280 0.0300
12:01-13:00, Tue., 20 Jan. 0.0336 0.0283 0.0301
11:01-12:00, Tue., 20 Jan. 0.0326 0.0286 0.0303
10:01-11:00, Tue., 20 Jan. 0.0322 0.0282 0.0303
09:01-10:00, Tue., 20 Jan. 0.0324 0.0275 0.0296
08:01-09:00, Tue., 20 Jan. 0.0324 0.0280 0.0306
07:01-08:00, Tue., 20 Jan. 0.0336 0.0283 0.0308
06:01-07:00, Tue., 20 Jan. 0.0336 0.0294 0.0314
05:01-06:00, Tue., 20 Jan. 0.0331 0.0289 0.0311
04:01-05:00, Tue., 20 Jan. 0.0325 0.0291 0.0307
03:01-04:00, Tue., 20 Jan. 0.0336 0.0289 0.0310
02:01-03:00, Tue., 20 Jan. 0.0346 0.0291 0.0313
01:01-02:00, Tue., 20 Jan. 0.0329 0.0294 0.0310
00:01-01:00, Tue., 20 Jan. 0.0326 0.0281 0.0307
23:01-24:00, Mon., 19 Jan. 0.0324 0.0276 0.0303
22:01-23:00, Mon., 19 Jan. 0.0331 0.0276 0.0305
21:01-22:00, Mon., 19 Jan. 0.0322 0.0280 0.0301
20:01-21:00, Mon., 19 Jan. 0.0323 0.0278 0.0302
19:01-20:00, Mon., 19 Jan. 0.0317 0.0276 0.0300
18:01-19:00, Mon., 19 Jan. 0.0317 0.0273 0.0296
17:01-18:00, Mon., 19 Jan. 0.0315 0.0275 0.0296
16:01-17:00, Mon., 19 Jan. 0.0318 0.0267 0.0297
15:01-16:00, Mon., 19 Jan. 0.0313 0.0276 0.0298
14:01-15:00, Mon., 19 Jan. 0.0329 0.0277 0.0302
13:01-14:00, Mon., 19 Jan. 0.0328 0.0273 0.0300
12:01-13:00, Mon., 19 Jan. 0.0323 0.0283 0.0302
11:01-12:00, Mon., 19 Jan. 0.0323 0.0276 0.0299
10:01-11:00, Mon., 19 Jan. 0.0325 0.0284 0.0305
09:01-10:00, Mon., 19 Jan. 0.0326 0.0286 0.0303
08:01-09:00, Mon., 19 Jan. 0.0324 0.0277 0.0301
07:01-08:00, Mon., 19 Jan. 0.0324 0.0280 0.0300
06:01-07:00, Mon., 19 Jan. 0.0320 0.0274 0.0298
05:01-06:00, Mon., 19 Jan. 0.0315 0.0272 0.0296
04:01-05:00, Mon., 19 Jan. 0.0326 0.0280 0.0298
03:01-04:00, Mon., 19 Jan. 0.0319 0.0268 0.0298
02:01-03:00, Mon., 19 Jan. 0.0322 0.0280 0.0299
01:01-02:00, Mon., 19 Jan. 0.0315 0.0271 0.0298
00:01-01:00, Mon., 19 Jan. 0.0319 0.0282 0.0297
23:01-24:00, Sun., 18 Jan. 0.0319 0.0281 0.0299
22:01-23:00, Sun., 18 Jan. 0.0318 0.0276 0.0295
21:01-22:00, Sun., 18 Jan. 0.0326 0.0280 0.0297
20:01-21:00, Sun., 18 Jan. 0.0321 0.0276 0.0297
19:01-20:00, Sun., 18 Jan. 0.0316 0.0270 0.0294
18:01-19:00, Sun., 18 Jan. 0.0318 0.0273 0.0295
17:01-18:00, Sun., 18 Jan. 0.0312 0.0268 0.0295
16:01-17:00, Sun., 18 Jan. 0.0324 0.0270 0.0298
15:01-16:00, Sun., 18 Jan. 0.0325 0.0280 0.0300
14:01-15:00, Sun., 18 Jan. 0.0318 0.0273 0.0299
13:01-14:00, Sun., 18 Jan. 0.0322 0.0281 0.0299
12:01-13:00, Sun., 18 Jan. 0.0319 0.0273 0.0300
11:01-12:00, Sun., 18 Jan. 0.0319 0.0278 0.0297
10:01-11:00, Sun., 18 Jan. 0.0325 0.0285 0.0300
09:01-10:00, Sun., 18 Jan. 0.0326 0.0282 0.0302
08:01-09:00, Sun., 18 Jan. 0.0329 0.0281 0.0300
07:01-08:00, Sun., 18 Jan. 0.0320 0.0279 0.0299
06:01-07:00, Sun., 18 Jan. 0.0321 0.0276 0.0297
05:01-06:00, Sun., 18 Jan. 0.0324 0.0280 0.0300
04:01-05:00, Sun., 18 Jan. 0.0325 0.0282 0.0300
03:01-04:00, Sun., 18 Jan. 0.0327 0.0281 0.0302
02:01-03:00, Sun., 18 Jan. 0.0325 0.0280 0.0297
01:01-02:00, Sun., 18 Jan. 0.0325 0.0278 0.0299
00:01-01:00, Sun., 18 Jan. 0.0317 0.0276 0.0300
23:01-24:00, Sat., 17 Jan. 0.0316 0.0275 0.0299
22:01-23:00, Sat., 17 Jan. 0.0322 0.0285 0.0302
21:01-22:00, Sat., 17 Jan. 0.0319 0.0280 0.0300
20:01-21:00, Sat., 17 Jan. 0.0324 0.0276 0.0300
19:01-20:00, Sat., 17 Jan. 0.0321 0.0282 0.0300
18:01-19:00, Sat., 17 Jan. 0.0320 0.0280 0.0299
17:01-18:00, Sat., 17 Jan. 0.0316 0.0277 0.0300
16:01-17:00, Sat., 17 Jan. 0.0329 0.0278 0.0303
15:01-16:00, Sat., 17 Jan. 0.0325 0.0284 0.0303
14:01-15:00, Sat., 17 Jan. 0.0326 0.0278 0.0300
13:01-14:00, Sat., 17 Jan. 0.0327 0.0286 0.0304
12:01-13:00, Sat., 17 Jan. 0.0324 0.0276 0.0300
11:01-12:00, Sat., 17 Jan. 0.0329 0.0280 0.0306
10:01-11:00, Sat., 17 Jan. 0.0339 0.0282 0.0310
09:01-10:00, Sat., 17 Jan. 0.0332 0.0280 0.0306
08:01-09:00, Sat., 17 Jan. 0.0324 0.0277 0.0303
07:01-08:00, Sat., 17 Jan. 0.0329 0.0278 0.0305
06:01-07:00, Sat., 17 Jan. 0.0320 0.0283 0.0303
05:01-06:00, Sat., 17 Jan. 0.0330 0.0283 0.0302
04:01-05:00, Sat., 17 Jan. 0.0319 0.0280 0.0299
03:01-04:00, Sat., 17 Jan. 0.0318 0.0276 0.0297
02:01-03:00, Sat., 17 Jan. 0.0321 0.0276 0.0299
01:01-02:00, Sat., 17 Jan. 0.0318 0.0268 0.0297
00:01-01:00, Sat., 17 Jan. 0.0321 0.0278 0.0298
23:01-24:00, Fri., 16 Jan. 0.0312 0.0275 0.0297
22:01-23:00, Fri., 16 Jan. 0.0318 0.0281 0.0296
21:01-22:00, Fri., 16 Jan. 0.0315 0.0275 0.0297
20:01-21:00, Fri., 16 Jan. 0.0324 0.0279 0.0295
19:01-20:00, Fri., 16 Jan. 0.0317 0.0269 0.0295
18:01-19:00, Fri., 16 Jan. 0.0317 0.0270 0.0291
17:01-18:00, Fri., 16 Jan. 0.0308 0.0268 0.0290
16:01-17:00, Fri., 16 Jan. 0.0315 0.0270 0.0292
15:01-16:00, Fri., 16 Jan. 0.0322 0.0268 0.0293
14:01-15:00, Fri., 16 Jan. 0.0322 0.0273 0.0294
13:01-14:00, Fri., 16 Jan. 0.0316 0.0279 0.0298
12:01-13:00, Fri., 16 Jan. 0.0331 0.0278 0.0300
11:01-12:00, Fri., 16 Jan. 0.0321 0.0284 0.0305
10:01-11:00, Fri., 16 Jan. 0.0322 0.0285 0.0305
09:01-10:00, Fri., 16 Jan. 0.0328 0.0289 0.0308
08:01-09:00, Fri., 16 Jan. 0.0325 0.0273 0.0307
07:01-08:00, Fri., 16 Jan. 0.0325 0.0286 0.0307
06:01-07:00, Fri., 16 Jan. 0.0336 0.0278 0.0307
05:01-06:00, Fri., 16 Jan. 0.0326 0.0286 0.0303
04:01-05:00, Fri., 16 Jan. 0.0322 0.0284 0.0302
03:01-04:00, Fri., 16 Jan. 0.0322 0.0287 0.0303
02:01-03:00, Fri., 16 Jan. 0.0323 0.0281 0.0301
01:01-02:00, Fri., 16 Jan. 0.0314 0.0270 0.0296
00:01-01:00, Fri., 16 Jan. 0.0324 0.0284 0.0301
23:01-24:00, Thu., 15 Jan. 0.0328 0.0286 0.0302
22:01-23:00, Thu., 15 Jan. 0.0323 0.0281 0.0299
21:01-22:00, Thu., 15 Jan. 0.0325 0.0280 0.0300
20:01-21:00, Thu., 15 Jan. 0.0316 0.0283 0.0301
19:01-20:00, Thu., 15 Jan. 0.0318 0.0270 0.0296
18:01-19:00, Thu., 15 Jan. 0.0315 0.0277 0.0297
17:01-18:00, Thu., 15 Jan. 0.0318 0.0276 0.0296
16:01-17:00, Thu., 15 Jan. 0.0316 0.0276 0.0295
15:01-16:00, Thu., 15 Jan. 0.0317 0.0273 0.0296
14:01-15:00, Thu., 15 Jan. 0.0312 0.0274 0.0293
13:01-14:00, Thu., 15 Jan. 0.0323 0.0266 0.0296
12:01-13:00, Thu., 15 Jan. 0.0318 0.0275 0.0295
11:01-12:00, Thu., 15 Jan. 0.0325 0.0275 0.0297
10:01-11:00, Thu., 15 Jan. 0.0312 0.0276 0.0298
09:01-10:00, Thu., 15 Jan. 0.0326 0.0276 0.0298
08:01-09:00, Thu., 15 Jan. 0.0321 0.0283 0.0300
07:01-08:00, Thu., 15 Jan. 0.0322 0.0280 0.0300
06:01-07:00, Thu., 15 Jan. 0.0321 0.0270 0.0297
05:01-06:00, Thu., 15 Jan. 0.0325 0.0282 0.0300
04:01-05:00, Thu., 15 Jan. 0.0323 0.0279 0.0299
03:01-04:00, Thu., 15 Jan. 0.0319 0.0280 0.0299
02:01-03:00, Thu., 15 Jan. 0.0326 0.0281 0.0302
01:01-02:00, Thu., 15 Jan. 0.0319 0.0277 0.0296
00:01-01:00, Thu., 15 Jan. 0.0328 0.0270 0.0295
23:01-24:00, Wed., 14 Jan. 0.0318 0.0276 0.0296
22:01-23:00, Wed., 14 Jan. 0.0321 0.0273 0.0296
21:01-22:00, Wed., 14 Jan. 0.0315 0.0270 0.0293
20:01-21:00, Wed., 14 Jan. 0.0321 0.0273 0.0292
19:01-20:00, Wed., 14 Jan. 0.0313 0.0270 0.0291
18:01-19:00, Wed., 14 Jan. 0.0311 0.0267 0.0294
17:01-18:00, Wed., 14 Jan. 0.0311 0.0266 0.0288
16:01-17:00, Wed., 14 Jan. 0.0319 0.0274 0.0292
15:01-16:00, Wed., 14 Jan. 0.0314 0.0266 0.0292
14:01-15:00, Wed., 14 Jan. 0.0328 0.0270 0.0292
13:01-14:00, Wed., 14 Jan. 0.0316 0.0277 0.0295
12:01-13:00, Wed., 14 Jan. 0.0315 0.0270 0.0292
11:01-12:00, Wed., 14 Jan. 0.0313 0.0271 0.0292
10:01-11:00, Wed., 14 Jan. 0.0317 0.0265 0.0293
09:01-10:00, Wed., 14 Jan. 0.0317 0.0277 0.0294
08:01-09:00, Wed., 14 Jan. 0.0324 0.0273 0.0294
07:01-08:00, Wed., 14 Jan. 0.0308 0.0272 0.0290
06:01-07:00, Wed., 14 Jan. 0.0322 0.0273 0.0293
05:01-06:00, Wed., 14 Jan. 0.0315 0.0280 0.0295
04:01-05:00, Wed., 14 Jan. 0.0315 0.0280 0.0296
03:01-04:00, Wed., 14 Jan. 0.0316 0.0274 0.0291
02:01-03:00, Wed., 14 Jan. 0.0314 0.0270 0.0294
01:01-02:00, Wed., 14 Jan. 0.0322 0.0270 0.0294
00:01-01:00, Wed., 14 Jan. 0.0316 0.0276 0.0295
23:01-24:00, Tue., 13 Jan. 0.0322 0.0268 0.0293
22:01-23:00, Tue., 13 Jan. 0.0315 0.0270 0.0293
21:01-22:00, Tue., 13 Jan. 0.0317 0.0276 0.0296
20:01-21:00, Tue., 13 Jan. 0.0315 0.0276 0.0295
19:01-20:00, Tue., 13 Jan. 0.0326 0.0275 0.0295
18:01-19:00, Tue., 13 Jan. 0.0310 0.0274 0.0296
17:01-18:00, Tue., 13 Jan. 0.0315 0.0270 0.0294