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
11:01-12:00, Fri., 02 Jan. 0.0325 0.0282 0.0305
10:01-11:00, Fri., 02 Jan. 0.0336 0.0287 0.0309
09:01-10:00, Fri., 02 Jan. 0.0329 0.0279 0.0310
08:01-09:00, Fri., 02 Jan. 0.0339 0.0296 0.0313
07:01-08:00, Fri., 02 Jan. 0.0333 0.0278 0.0313
06:01-07:00, Fri., 02 Jan. 0.0331 0.0289 0.0306
05:01-06:00, Fri., 02 Jan. 0.0333 0.0286 0.0306
04:01-05:00, Fri., 02 Jan. 0.0329 0.0288 0.0307
03:01-04:00, Fri., 02 Jan. 0.0328 0.0278 0.0305
02:01-03:00, Fri., 02 Jan. 0.0319 0.0268 0.0302
01:01-02:00, Fri., 02 Jan. 0.0328 0.0277 0.0303
00:01-01:00, Fri., 02 Jan. 0.0320 0.0286 0.0302
23:01-24:00, Thu., 01 Jan. 0.0321 0.0276 0.0299
22:01-23:00, Thu., 01 Jan. 0.0316 0.0276 0.0298
21:01-22:00, Thu., 01 Jan. 0.0322 0.0281 0.0299
20:01-21:00, Thu., 01 Jan. 0.0326 0.0276 0.0300
19:01-20:00, Thu., 01 Jan. 0.0329 0.0274 0.0299
18:01-19:00, Thu., 01 Jan. 0.0322 0.0273 0.0298
17:01-18:00, Thu., 01 Jan. 0.0318 0.0280 0.0298
16:01-17:00, Thu., 01 Jan. 0.0316 0.0275 0.0295
15:01-16:00, Thu., 01 Jan. 0.0322 0.0280 0.0300
14:01-15:00, Thu., 01 Jan. 0.0318 0.0276 0.0300
13:01-14:00, Thu., 01 Jan. 0.0319 0.0273 0.0299
12:01-13:00, Thu., 01 Jan. 0.0331 0.0281 0.0302
11:01-12:00, Thu., 01 Jan. 0.0317 0.0272 0.0299
10:01-11:00, Thu., 01 Jan. 0.0329 0.0280 0.0303
09:01-10:00, Thu., 01 Jan. 0.0325 0.0283 0.0303
08:01-09:00, Thu., 01 Jan. 0.0326 0.0274 0.0305
07:01-08:00, Thu., 01 Jan. 0.0332 0.0281 0.0306
06:01-07:00, Thu., 01 Jan. 0.0324 0.0280 0.0305
05:01-06:00, Thu., 01 Jan. 0.0320 0.0275 0.0298
04:01-05:00, Thu., 01 Jan. 0.0316 0.0280 0.0299
03:01-04:00, Thu., 01 Jan. 0.0325 0.0271 0.0299
02:01-03:00, Thu., 01 Jan. 0.0330 0.0279 0.0298
01:01-02:00, Thu., 01 Jan. 0.0318 0.0281 0.0295
00:01-01:00, Thu., 01 Jan. 0.0318 0.0273 0.0298
23:01-24:00, Wed., 31 Dec. 0.0319 0.0273 0.0295
22:01-23:00, Wed., 31 Dec. 0.0322 0.0270 0.0293
21:01-22:00, Wed., 31 Dec. 0.0316 0.0279 0.0294
20:01-21:00, Wed., 31 Dec. 0.0316 0.0276 0.0296
19:01-20:00, Wed., 31 Dec. 0.0322 0.0280 0.0295
18:01-19:00, Wed., 31 Dec. 0.0308 0.0273 0.0290
17:01-18:00, Wed., 31 Dec. 0.0307 0.0276 0.0292
16:01-17:00, Wed., 31 Dec. 0.0317 0.0275 0.0292
15:01-16:00, Wed., 31 Dec. 0.0310 0.0273 0.0293
14:01-15:00, Wed., 31 Dec. 0.0309 0.0276 0.0295
13:01-14:00, Wed., 31 Dec. 0.0322 0.0275 0.0295
12:01-13:00, Wed., 31 Dec. 0.0319 0.0276 0.0298
11:01-12:00, Wed., 31 Dec. 0.0326 0.0277 0.0299
10:01-11:00, Wed., 31 Dec. 0.0335 0.0286 0.0305
09:01-10:00, Wed., 31 Dec. 0.0326 0.0284 0.0304
08:01-09:00, Wed., 31 Dec. 0.0346 0.0281 0.0306
07:01-08:00, Wed., 31 Dec. 0.0325 0.0286 0.0303
06:01-07:00, Wed., 31 Dec. 0.0319 0.0282 0.0300
05:01-06:00, Wed., 31 Dec. 0.0329 0.0285 0.0302
04:01-05:00, Wed., 31 Dec. 0.0326 0.0285 0.0303
03:01-04:00, Wed., 31 Dec. 0.0323 0.0272 0.0302
02:01-03:00, Wed., 31 Dec. 0.0320 0.0287 0.0304
01:01-02:00, Wed., 31 Dec. 0.0320 0.0283 0.0303
00:01-01:00, Wed., 31 Dec. 0.0325 0.0287 0.0303
23:01-24:00, Tue., 30 Dec. 0.0329 0.0275 0.0301
22:01-23:00, Tue., 30 Dec. 0.0329 0.0282 0.0303
21:01-22:00, Tue., 30 Dec. 0.0323 0.0280 0.0302
20:01-21:00, Tue., 30 Dec. 0.0322 0.0277 0.0299
19:01-20:00, Tue., 30 Dec. 0.0325 0.0267 0.0297
18:01-19:00, Tue., 30 Dec. 0.0313 0.0273 0.0296
17:01-18:00, Tue., 30 Dec. 0.0313 0.0270 0.0294
16:01-17:00, Tue., 30 Dec. 0.0319 0.0270 0.0296
15:01-16:00, Tue., 30 Dec. 0.0313 0.0281 0.0299
14:01-15:00, Tue., 30 Dec. 0.0329 0.0276 0.0300
13:01-14:00, Tue., 30 Dec. 0.0332 0.0284 0.0303
12:01-13:00, Tue., 30 Dec. 0.0327 0.0287 0.0306
11:01-12:00, Tue., 30 Dec. 0.0332 0.0287 0.0308
10:01-11:00, Tue., 30 Dec. 0.0336 0.0290 0.0313
09:01-10:00, Tue., 30 Dec. 0.0336 0.0296 0.0314
08:01-09:00, Tue., 30 Dec. 0.0339 0.0289 0.0311
07:01-08:00, Tue., 30 Dec. 0.0336 0.0290 0.0309
06:01-07:00, Tue., 30 Dec. 0.0334 0.0292 0.0312
05:01-06:00, Tue., 30 Dec. 0.0336 0.0294 0.0312
04:01-05:00, Tue., 30 Dec. 0.0325 0.0292 0.0309
03:01-04:00, Tue., 30 Dec. 0.0326 0.0285 0.0308
02:01-03:00, Tue., 30 Dec. 0.0324 0.0286 0.0308
01:01-02:00, Tue., 30 Dec. 0.0322 0.0281 0.0304
00:01-01:00, Tue., 30 Dec. 0.0331 0.0287 0.0306
23:01-24:00, Mon., 29 Dec. 0.0325 0.0280 0.0302
22:01-23:00, Mon., 29 Dec. 0.0322 0.0282 0.0301
21:01-22:00, Mon., 29 Dec. 0.0329 0.0273 0.0298
20:01-21:00, Mon., 29 Dec. 0.0318 0.0273 0.0295
19:01-20:00, Mon., 29 Dec. 0.0312 0.0275 0.0294
18:01-19:00, Mon., 29 Dec. 0.0318 0.0280 0.0297
17:01-18:00, Mon., 29 Dec. 0.0308 0.0269 0.0293
16:01-17:00, Mon., 29 Dec. 0.0317 0.0268 0.0295
15:01-16:00, Mon., 29 Dec. 0.0316 0.0271 0.0296
14:01-15:00, Mon., 29 Dec. 0.0315 0.0286 0.0298
13:01-14:00, Mon., 29 Dec. 0.0315 0.0273 0.0295
12:01-13:00, Mon., 29 Dec. 0.0312 0.0269 0.0294
11:01-12:00, Mon., 29 Dec. 0.0323 0.0273 0.0299
10:01-11:00, Mon., 29 Dec. 0.0333 0.0283 0.0303
09:01-10:00, Mon., 29 Dec. 0.0323 0.0279 0.0302
08:01-09:00, Mon., 29 Dec. 0.0328 0.0284 0.0305
07:01-08:00, Mon., 29 Dec. 0.0327 0.0286 0.0305
06:01-07:00, Mon., 29 Dec. 0.0324 0.0285 0.0309
05:01-06:00, Mon., 29 Dec. 0.0336 0.0284 0.0306
04:01-05:00, Mon., 29 Dec. 0.0330 0.0285 0.0304
03:01-04:00, Mon., 29 Dec. 0.0328 0.0289 0.0306
02:01-03:00, Mon., 29 Dec. 0.0321 0.0281 0.0301
01:01-02:00, Mon., 29 Dec. 0.0318 0.0273 0.0301
00:01-01:00, Mon., 29 Dec. 0.0322 0.0283 0.0299
23:01-24:00, Sun., 28 Dec. 0.0318 0.0278 0.0295
22:01-23:00, Sun., 28 Dec. 0.0315 0.0274 0.0294
21:01-22:00, Sun., 28 Dec. 0.0314 0.0270 0.0292
20:01-21:00, Sun., 28 Dec. 0.0315 0.0270 0.0291
19:01-20:00, Sun., 28 Dec. 0.0307 0.0270 0.0288
18:01-19:00, Sun., 28 Dec. 0.0315 0.0267 0.0289
17:01-18:00, Sun., 28 Dec. 0.0307 0.0270 0.0290
16:01-17:00, Sun., 28 Dec. 0.0318 0.0260 0.0288
15:01-16:00, Sun., 28 Dec. 0.0313 0.0277 0.0291
14:01-15:00, Sun., 28 Dec. 0.0308 0.0273 0.0288
13:01-14:00, Sun., 28 Dec. 0.0318 0.0273 0.0291
12:01-13:00, Sun., 28 Dec. 0.0315 0.0265 0.0291
11:01-12:00, Sun., 28 Dec. 0.0322 0.0277 0.0299
10:01-11:00, Sun., 28 Dec. 0.0325 0.0272 0.0304
09:01-10:00, Sun., 28 Dec. 0.0329 0.0277 0.0305
08:01-09:00, Sun., 28 Dec. 0.0337 0.0295 0.0312
07:01-08:00, Sun., 28 Dec. 0.0346 0.0298 0.0315
06:01-07:00, Sun., 28 Dec. 0.0346 0.0298 0.0318
05:01-06:00, Sun., 28 Dec. 0.0329 0.0289 0.0311
04:01-05:00, Sun., 28 Dec. 0.0339 0.0286 0.0309
03:01-04:00, Sun., 28 Dec. 0.0327 0.0283 0.0305
02:01-03:00, Sun., 28 Dec. 0.0322 0.0280 0.0304
01:01-02:00, Sun., 28 Dec. 0.0322 0.0281 0.0303
00:01-01:00, Sun., 28 Dec. 0.0321 0.0280 0.0300
23:01-24:00, Sat., 27 Dec. 0.0322 0.0285 0.0301
22:01-23:00, Sat., 27 Dec. 0.0324 0.0277 0.0300
21:01-22:00, Sat., 27 Dec. 0.0314 0.0277 0.0295
20:01-21:00, Sat., 27 Dec. 0.0319 0.0280 0.0298
19:01-20:00, Sat., 27 Dec. 0.0315 0.0272 0.0296
18:01-19:00, Sat., 27 Dec. 0.0318 0.0270 0.0294
17:01-18:00, Sat., 27 Dec. 0.0308 0.0272 0.0291
16:01-17:00, Sat., 27 Dec. 0.0312 0.0270 0.0292
15:01-16:00, Sat., 27 Dec. 0.0315 0.0275 0.0293
14:01-15:00, Sat., 27 Dec. 0.0312 0.0270 0.0292
13:01-14:00, Sat., 27 Dec. 0.0308 0.0272 0.0291
12:01-13:00, Sat., 27 Dec. 0.0318 0.0273 0.0294
11:01-12:00, Sat., 27 Dec. 0.0316 0.0273 0.0291
10:01-11:00, Sat., 27 Dec. 0.0317 0.0270 0.0293
09:01-10:00, Sat., 27 Dec. 0.0320 0.0276 0.0297
08:01-09:00, Sat., 27 Dec. 0.0315 0.0272 0.0295
07:01-08:00, Sat., 27 Dec. 0.0313 0.0273 0.0291
06:01-07:00, Sat., 27 Dec. 0.0318 0.0280 0.0296
05:01-06:00, Sat., 27 Dec. 0.0326 0.0274 0.0297
04:01-05:00, Sat., 27 Dec. 0.0318 0.0270 0.0296
03:01-04:00, Sat., 27 Dec. 0.0315 0.0270 0.0295
02:01-03:00, Sat., 27 Dec. 0.0325 0.0273 0.0298
01:01-02:00, Sat., 27 Dec. 0.0316 0.0282 0.0297
00:01-01:00, Sat., 27 Dec. 0.0321 0.0278 0.0298
23:01-24:00, Fri., 26 Dec. 0.0329 0.0276 0.0299
22:01-23:00, Fri., 26 Dec. 0.0320 0.0278 0.0298
21:01-22:00, Fri., 26 Dec. 0.0325 0.0282 0.0302
20:01-21:00, Fri., 26 Dec. 0.0323 0.0278 0.0302
19:01-20:00, Fri., 26 Dec. 0.0326 0.0278 0.0305
18:01-19:00, Fri., 26 Dec. 0.0334 0.0286 0.0307
17:01-18:00, Fri., 26 Dec. 0.0331 0.0289 0.0307
16:01-17:00, Fri., 26 Dec. 0.0337 0.0284 0.0309
15:01-16:00, Fri., 26 Dec. 0.0332 0.0289 0.0308
14:01-15:00, Fri., 26 Dec. 0.0331 0.0288 0.0307
13:01-14:00, Fri., 26 Dec. 0.0328 0.0280 0.0303
12:01-13:00, Fri., 26 Dec. 0.0322 0.0285 0.0305
11:01-12:00, Fri., 26 Dec. 0.0349 0.0282 0.0308
10:01-11:00, Fri., 26 Dec. 0.0328 0.0275 0.0305
09:01-10:00, Fri., 26 Dec. 0.0326 0.0280 0.0303
08:01-09:00, Fri., 26 Dec. 0.0326 0.0283 0.0303
07:01-08:00, Fri., 26 Dec. 0.0336 0.0280 0.0306
06:01-07:00, Fri., 26 Dec. 0.0381 0.0305 0.0342
05:01-06:00, Fri., 26 Dec. 0.0396 0.0287 0.0338
04:01-05:00, Fri., 26 Dec. 0.0320 0.0278 0.0300
03:01-04:00, Fri., 26 Dec. 0.0319 0.0276 0.0298
02:01-03:00, Fri., 26 Dec. 0.0322 0.0276 0.0297
01:01-02:00, Fri., 26 Dec. 0.0326 0.0278 0.0301
00:01-01:00, Fri., 26 Dec. 0.0335 0.0285 0.0309
23:01-24:00, Thu., 25 Dec. 0.0347 0.0313 0.0330
22:01-23:00, Thu., 25 Dec. 0.0409 0.0313 0.0359
21:01-22:00, Thu., 25 Dec. 0.0569 0.0397 0.0486
20:01-21:00, Thu., 25 Dec. 0.0640 0.0545 0.0597
19:01-20:00, Thu., 25 Dec. 0.0615 0.0482 0.0540
18:01-19:00, Thu., 25 Dec. 0.0498 0.0388 0.0428
17:01-18:00, Thu., 25 Dec. 0.0438 0.0287 0.0375
16:01-17:00, Thu., 25 Dec. 0.0324 0.0277 0.0304
15:01-16:00, Thu., 25 Dec. 0.0325 0.0268 0.0301
14:01-15:00, Thu., 25 Dec. 0.0319 0.0274 0.0299
13:01-14:00, Thu., 25 Dec. 0.0318 0.0277 0.0298
12:01-13:00, Thu., 25 Dec. 0.0326 0.0279 0.0305
11:01-12:00, Thu., 25 Dec. 0.0339 0.0293 0.0314
10:01-11:00, Thu., 25 Dec. 0.0334 0.0289 0.0313
09:01-10:00, Thu., 25 Dec. 0.0328 0.0286 0.0306
08:01-09:00, Thu., 25 Dec. 0.0322 0.0279 0.0305
07:01-08:00, Thu., 25 Dec. 0.0336 0.0280 0.0306
06:01-07:00, Thu., 25 Dec. 0.0336 0.0278 0.0309
05:01-06:00, Thu., 25 Dec. 0.0338 0.0294 0.0311
04:01-05:00, Thu., 25 Dec. 0.0332 0.0284 0.0308
03:01-04:00, Thu., 25 Dec. 0.0331 0.0290 0.0312
02:01-03:00, Thu., 25 Dec. 0.0326 0.0285 0.0309
01:01-02:00, Thu., 25 Dec. 0.0326 0.0278 0.0305
00:01-01:00, Thu., 25 Dec. 0.0330 0.0284 0.0303
23:01-24:00, Wed., 24 Dec. 0.0321 0.0269 0.0300
22:01-23:00, Wed., 24 Dec. 0.0322 0.0273 0.0299
21:01-22:00, Wed., 24 Dec. 0.0323 0.0289 0.0305
20:01-21:00, Wed., 24 Dec. 0.0324 0.0286 0.0303
19:01-20:00, Wed., 24 Dec. 0.0345 0.0299 0.0321
18:01-19:00, Wed., 24 Dec. 0.0370 0.0310 0.0347
17:01-18:00, Wed., 24 Dec. 0.0350 0.0300 0.0319
16:01-17:00, Wed., 24 Dec. 0.0427 0.0318 0.0369
15:01-16:00, Wed., 24 Dec. 0.0477 0.0400 0.0443
14:01-15:00, Wed., 24 Dec. 0.0493 0.0404 0.0451
13:01-14:00, Wed., 24 Dec. 0.0469 0.0380 0.0427
12:01-13:00, Wed., 24 Dec. 0.0528 0.0390 0.0452
11:01-12:00, Wed., 24 Dec. 0.0564 0.0488 0.0527
10:01-11:00, Wed., 24 Dec. 0.0530 0.0411 0.0475
09:01-10:00, Wed., 24 Dec. 0.0440 0.0338 0.0379
08:01-09:00, Wed., 24 Dec. 0.0457 0.0320 0.0382
07:01-08:00, Wed., 24 Dec. 0.0461 0.0342 0.0405
06:01-07:00, Wed., 24 Dec. 0.0358 0.0306 0.0325
05:01-06:00, Wed., 24 Dec. 0.0333 0.0286 0.0311
04:01-05:00, Wed., 24 Dec. 0.0329 0.0276 0.0298
03:01-04:00, Wed., 24 Dec. 0.0322 0.0270 0.0298
02:01-03:00, Wed., 24 Dec. 0.0326 0.0281 0.0304
01:01-02:00, Wed., 24 Dec. 0.0324 0.0286 0.0304
00:01-01:00, Wed., 24 Dec. 0.0319 0.0276 0.0294
23:01-24:00, Tue., 23 Dec. 0.0320 0.0276 0.0297
22:01-23:00, Tue., 23 Dec. 0.0326 0.0277 0.0294
21:01-22:00, Tue., 23 Dec. 0.0314 0.0275 0.0294
20:01-21:00, Tue., 23 Dec. 0.0310 0.0270 0.0291
19:01-20:00, Tue., 23 Dec. 0.0304 0.0265 0.0289
18:01-19:00, Tue., 23 Dec. 0.0317 0.0270 0.0292
17:01-18:00, Tue., 23 Dec. 0.0320 0.0250 0.0289
16:01-17:00, Tue., 23 Dec. 0.0321 0.0266 0.0290
15:01-16:00, Tue., 23 Dec. 0.0310 0.0266 0.0292
14:01-15:00, Tue., 23 Dec. 0.0311 0.0274 0.0292
13:01-14:00, Tue., 23 Dec. 0.0318 0.0269 0.0290
12:01-13:00, Tue., 23 Dec. 0.0309 0.0271 0.0292