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
10:01-11:00, Wed., 03 Dec. 0.0329 0.0280 0.0312
09:01-10:00, Wed., 03 Dec. 0.0332 0.0294 0.0313
08:01-09:00, Wed., 03 Dec. 0.0332 0.0298 0.0314
07:01-08:00, Wed., 03 Dec. 0.0329 0.0286 0.0311
06:01-07:00, Wed., 03 Dec. 0.0336 0.0289 0.0312
05:01-06:00, Wed., 03 Dec. 0.0336 0.0289 0.0309
04:01-05:00, Wed., 03 Dec. 0.0325 0.0286 0.0310
03:01-04:00, Wed., 03 Dec. 0.0325 0.0285 0.0304
02:01-03:00, Wed., 03 Dec. 0.0322 0.0280 0.0302
01:01-02:00, Wed., 03 Dec. 0.0327 0.0274 0.0304
00:01-01:00, Wed., 03 Dec. 0.0329 0.0282 0.0303
23:01-24:00, Tue., 02 Dec. 0.0325 0.0278 0.0301
22:01-23:00, Tue., 02 Dec. 0.0329 0.0286 0.0305
21:01-22:00, Tue., 02 Dec. 0.0332 0.0276 0.0302
20:01-21:00, Tue., 02 Dec. 0.0320 0.0279 0.0300
19:01-20:00, Tue., 02 Dec. 0.0318 0.0273 0.0299
18:01-19:00, Tue., 02 Dec. 0.0326 0.0278 0.0294
17:01-18:00, Tue., 02 Dec. 0.0325 0.0269 0.0299
16:01-17:00, Tue., 02 Dec. 0.0329 0.0274 0.0301
15:01-16:00, Tue., 02 Dec. 0.0332 0.0272 0.0299
14:01-15:00, Tue., 02 Dec. 0.0315 0.0228 0.0287
13:01-14:00, Tue., 02 Dec. 0.0332 0.0288 0.0311
12:01-13:00, Tue., 02 Dec. 0.0340 0.0281 0.0314
11:01-12:00, Tue., 02 Dec. 0.0336 0.0297 0.0314
10:01-11:00, Tue., 02 Dec. 0.0332 0.0294 0.0315
09:01-10:00, Tue., 02 Dec. 0.0340 0.0300 0.0318
08:01-09:00, Tue., 02 Dec. 0.0346 0.0291 0.0317
07:01-08:00, Tue., 02 Dec. 0.0332 0.0294 0.0315
06:01-07:00, Tue., 02 Dec. 0.0332 0.0297 0.0317
05:01-06:00, Tue., 02 Dec. 0.0346 0.0297 0.0323
04:01-05:00, Tue., 02 Dec. 0.0349 0.0292 0.0323
03:01-04:00, Tue., 02 Dec. 0.0336 0.0287 0.0320
02:01-03:00, Tue., 02 Dec. 0.0346 0.0290 0.0322
01:01-02:00, Tue., 02 Dec. 0.0343 0.0299 0.0320
00:01-01:00, Tue., 02 Dec. 0.0351 0.0293 0.0320
23:01-24:00, Mon., 01 Dec. 0.0347 0.0299 0.0320
22:01-23:00, Mon., 01 Dec. 0.0339 0.0298 0.0319
21:01-22:00, Mon., 01 Dec. 0.0336 0.0301 0.0317
20:01-21:00, Mon., 01 Dec. 0.0336 0.0280 0.0309
19:01-20:00, Mon., 01 Dec. 0.0325 0.0276 0.0302
18:01-19:00, Mon., 01 Dec. 0.0329 0.0273 0.0303
17:01-18:00, Mon., 01 Dec. 0.0321 0.0277 0.0302
16:01-17:00, Mon., 01 Dec. 0.0330 0.0279 0.0303
15:01-16:00, Mon., 01 Dec. 0.0322 0.0273 0.0305
14:01-15:00, Mon., 01 Dec. 0.0329 0.0282 0.0305
13:01-14:00, Mon., 01 Dec. 0.0339 0.0290 0.0313
12:01-13:00, Mon., 01 Dec. 0.0332 0.0290 0.0311
11:01-12:00, Mon., 01 Dec. 0.0348 0.0290 0.0317
10:01-11:00, Mon., 01 Dec. 0.0356 0.0291 0.0322
09:01-10:00, Mon., 01 Dec. 0.0352 0.0305 0.0326
08:01-09:00, Mon., 01 Dec. 0.0343 0.0298 0.0323
07:01-08:00, Mon., 01 Dec. 0.0339 0.0302 0.0321
06:01-07:00, Mon., 01 Dec. 0.0336 0.0303 0.0321
05:01-06:00, Mon., 01 Dec. 0.0345 0.0300 0.0323
04:01-05:00, Mon., 01 Dec. 0.0341 0.0299 0.0321
03:01-04:00, Mon., 01 Dec. 0.0336 0.0300 0.0318
02:01-03:00, Mon., 01 Dec. 0.0343 0.0297 0.0315
01:01-02:00, Mon., 01 Dec. 0.0346 0.0300 0.0319
00:01-01:00, Mon., 01 Dec. 0.0334 0.0296 0.0315
23:01-24:00, Sun., 30 Nov. 0.0330 0.0292 0.0314
22:01-23:00, Sun., 30 Nov. 0.0335 0.0291 0.0311
21:01-22:00, Sun., 30 Nov. 0.0321 0.0286 0.0306
20:01-21:00, Sun., 30 Nov. 0.0332 0.0287 0.0304
19:01-20:00, Sun., 30 Nov. 0.0324 0.0276 0.0300
18:01-19:00, Sun., 30 Nov. 0.0325 0.0277 0.0301
17:01-18:00, Sun., 30 Nov. 0.0317 0.0283 0.0302
16:01-17:00, Sun., 30 Nov. 0.0320 0.0276 0.0300
15:01-16:00, Sun., 30 Nov. 0.0324 0.0270 0.0304
14:01-15:00, Sun., 30 Nov. 0.0327 0.0285 0.0307
13:01-14:00, Sun., 30 Nov. 0.0329 0.0284 0.0309
12:01-13:00, Sun., 30 Nov. 0.0329 0.0283 0.0308
11:01-12:00, Sun., 30 Nov. 0.0325 0.0288 0.0308
10:01-11:00, Sun., 30 Nov. 0.0347 0.0296 0.0313
09:01-10:00, Sun., 30 Nov. 0.0333 0.0297 0.0315
08:01-09:00, Sun., 30 Nov. 0.0343 0.0300 0.0318
07:01-08:00, Sun., 30 Nov. 0.0339 0.0290 0.0315
06:01-07:00, Sun., 30 Nov. 0.0336 0.0292 0.0314
05:01-06:00, Sun., 30 Nov. 0.0336 0.0291 0.0314
04:01-05:00, Sun., 30 Nov. 0.0332 0.0287 0.0314
03:01-04:00, Sun., 30 Nov. 0.0334 0.0292 0.0314
02:01-03:00, Sun., 30 Nov. 0.0343 0.0287 0.0314
01:01-02:00, Sun., 30 Nov. 0.0334 0.0293 0.0313
00:01-01:00, Sun., 30 Nov. 0.0336 0.0286 0.0306
23:01-24:00, Sat., 29 Nov. 0.0323 0.0275 0.0301
22:01-23:00, Sat., 29 Nov. 0.0321 0.0276 0.0301
21:01-22:00, Sat., 29 Nov. 0.0318 0.0280 0.0301
20:01-21:00, Sat., 29 Nov. 0.0326 0.0273 0.0298
19:01-20:00, Sat., 29 Nov. 0.0322 0.0275 0.0301
18:01-19:00, Sat., 29 Nov. 0.0321 0.0266 0.0299
17:01-18:00, Sat., 29 Nov. 0.0316 0.0277 0.0298
16:01-17:00, Sat., 29 Nov. 0.0334 0.0270 0.0300
15:01-16:00, Sat., 29 Nov. 0.0316 0.0277 0.0300
14:01-15:00, Sat., 29 Nov. 0.0324 0.0279 0.0300
13:01-14:00, Sat., 29 Nov. 0.0322 0.0280 0.0304
12:01-13:00, Sat., 29 Nov. 0.0331 0.0284 0.0304
11:01-12:00, Sat., 29 Nov. 0.0320 0.0276 0.0299
10:01-11:00, Sat., 29 Nov. 0.0323 0.0270 0.0301
09:01-10:00, Sat., 29 Nov. 0.0321 0.0276 0.0300
08:01-09:00, Sat., 29 Nov. 0.0314 0.0277 0.0298
07:01-08:00, Sat., 29 Nov. 0.0322 0.0283 0.0300
06:01-07:00, Sat., 29 Nov. 0.0323 0.0259 0.0300
05:01-06:00, Sat., 29 Nov. 0.0327 0.0280 0.0306
04:01-05:00, Sat., 29 Nov. 0.0327 0.0289 0.0310
03:01-04:00, Sat., 29 Nov. 0.0330 0.0290 0.0311
02:01-03:00, Sat., 29 Nov. 0.0347 0.0287 0.0312
01:01-02:00, Sat., 29 Nov. 0.0339 0.0293 0.0316
00:01-01:00, Sat., 29 Nov. 0.0337 0.0293 0.0319
23:01-24:00, Fri., 28 Nov. 0.0337 0.0297 0.0318
22:01-23:00, Fri., 28 Nov. 0.0343 0.0298 0.0319
21:01-22:00, Fri., 28 Nov. 0.0345 0.0301 0.0317
20:01-21:00, Fri., 28 Nov. 0.0330 0.0289 0.0311
19:01-20:00, Fri., 28 Nov. 0.0341 0.0287 0.0309
18:01-19:00, Fri., 28 Nov. 0.0322 0.0274 0.0303
17:01-18:00, Fri., 28 Nov. 0.0333 0.0281 0.0306
16:01-17:00, Fri., 28 Nov. 0.0327 0.0287 0.0307
15:01-16:00, Fri., 28 Nov. 0.0326 0.0287 0.0307
14:01-15:00, Fri., 28 Nov. 0.0329 0.0291 0.0309
13:01-14:00, Fri., 28 Nov. 0.0329 0.0281 0.0307
12:01-13:00, Fri., 28 Nov. 0.0334 0.0290 0.0310
11:01-12:00, Fri., 28 Nov. 0.0332 0.0294 0.0311
10:01-11:00, Fri., 28 Nov. 0.0334 0.0291 0.0312
09:01-10:00, Fri., 28 Nov. 0.0324 0.0280 0.0304
08:01-09:00, Fri., 28 Nov. 0.0334 0.0289 0.0306
07:01-08:00, Fri., 28 Nov. 0.0331 0.0274 0.0306
06:01-07:00, Fri., 28 Nov. 0.0332 0.0282 0.0307
05:01-06:00, Fri., 28 Nov. 0.0330 0.0294 0.0310
04:01-05:00, Fri., 28 Nov. 0.0327 0.0284 0.0313
03:01-04:00, Fri., 28 Nov. 0.0338 0.0287 0.0308
02:01-03:00, Fri., 28 Nov. 0.0329 0.0292 0.0310
01:01-02:00, Fri., 28 Nov. 0.0328 0.0284 0.0310
00:01-01:00, Fri., 28 Nov. 0.0329 0.0289 0.0306
23:01-24:00, Thu., 27 Nov. 0.0329 0.0286 0.0306
22:01-23:00, Thu., 27 Nov. 0.0322 0.0283 0.0303
21:01-22:00, Thu., 27 Nov. 0.0330 0.0280 0.0305
20:01-21:00, Thu., 27 Nov. 0.0326 0.0289 0.0308
19:01-20:00, Thu., 27 Nov. 0.0326 0.0287 0.0307
18:01-19:00, Thu., 27 Nov. 0.0330 0.0288 0.0307
17:01-18:00, Thu., 27 Nov. 0.0337 0.0283 0.0311
16:01-17:00, Thu., 27 Nov. 0.0331 0.0294 0.0315
15:01-16:00, Thu., 27 Nov. 0.0330 0.0281 0.0303
14:01-15:00, Thu., 27 Nov. 0.0327 0.0276 0.0302
13:01-14:00, Thu., 27 Nov. 0.0324 0.0282 0.0303
12:01-13:00, Thu., 27 Nov. 0.0330 0.0279 0.0303
11:01-12:00, Thu., 27 Nov. 0.0322 0.0285 0.0303
10:01-11:00, Thu., 27 Nov. 0.0332 0.0285 0.0306
09:01-10:00, Thu., 27 Nov. 0.0335 0.0286 0.0306
08:01-09:00, Thu., 27 Nov. 0.0328 0.0289 0.0307
07:01-08:00, Thu., 27 Nov. 0.0329 0.0287 0.0305
06:01-07:00, Thu., 27 Nov. 0.0325 0.0280 0.0304
05:01-06:00, Thu., 27 Nov. 0.0324 0.0287 0.0302
04:01-05:00, Thu., 27 Nov. 0.0333 0.0279 0.0300
03:01-04:00, Thu., 27 Nov. 0.0315 0.0276 0.0297
02:01-03:00, Thu., 27 Nov. 0.0323 0.0279 0.0296
01:01-02:00, Thu., 27 Nov. 0.0321 0.0280 0.0297
00:01-01:00, Thu., 27 Nov. 0.0319 0.0269 0.0297
23:01-24:00, Wed., 26 Nov. 0.0326 0.0272 0.0299
22:01-23:00, Wed., 26 Nov. 0.0324 0.0276 0.0300
21:01-22:00, Wed., 26 Nov. 0.0318 0.0282 0.0298
20:01-21:00, Wed., 26 Nov. 0.0319 0.0276 0.0297
19:01-20:00, Wed., 26 Nov. 0.0315 0.0279 0.0299
18:01-19:00, Wed., 26 Nov. 0.0317 0.0273 0.0295
17:01-18:00, Wed., 26 Nov. 0.0318 0.0270 0.0295
16:01-17:00, Wed., 26 Nov. 0.0315 0.0270 0.0295
15:01-16:00, Wed., 26 Nov. 0.0326 0.0276 0.0299
14:01-15:00, Wed., 26 Nov. 0.0323 0.0281 0.0297
13:01-14:00, Wed., 26 Nov. 0.0324 0.0276 0.0299
12:01-13:00, Wed., 26 Nov. 0.0326 0.0287 0.0306
11:01-12:00, Wed., 26 Nov. 0.0339 0.0288 0.0308
10:01-11:00, Wed., 26 Nov. 0.0344 0.0294 0.0313
09:01-10:00, Wed., 26 Nov. 0.0335 0.0294 0.0314
08:01-09:00, Wed., 26 Nov. 0.0339 0.0287 0.0315
07:01-08:00, Wed., 26 Nov. 0.0339 0.0295 0.0313
06:01-07:00, Wed., 26 Nov. 0.0339 0.0287 0.0313
05:01-06:00, Wed., 26 Nov. 0.0340 0.0296 0.0316
04:01-05:00, Wed., 26 Nov. 0.0350 0.0300 0.0317
03:01-04:00, Wed., 26 Nov. 0.0348 0.0308 0.0325
02:01-03:00, Wed., 26 Nov. 0.0353 0.0307 0.0327
01:01-02:00, Wed., 26 Nov. 0.0340 0.0307 0.0325
00:01-01:00, Wed., 26 Nov. 0.0344 0.0286 0.0316
23:01-24:00, Tue., 25 Nov. 0.0331 0.0281 0.0313
22:01-23:00, Tue., 25 Nov. 0.0333 0.0295 0.0315
21:01-22:00, Tue., 25 Nov. 0.0336 0.0294 0.0309
20:01-21:00, Tue., 25 Nov. 0.0330 0.0289 0.0308
19:01-20:00, Tue., 25 Nov. 0.0335 0.0282 0.0307
18:01-19:00, Tue., 25 Nov. 0.0336 0.0290 0.0315
17:01-18:00, Tue., 25 Nov. 0.0363 0.0315 0.0336
16:01-17:00, Tue., 25 Nov. 0.0388 0.0325 0.0361
15:01-16:00, Tue., 25 Nov. 0.0384 0.0316 0.0345
14:01-15:00, Tue., 25 Nov. 0.0363 0.0304 0.0335
13:01-14:00, Tue., 25 Nov. 0.0377 0.0334 0.0355
12:01-13:00, Tue., 25 Nov. 0.0409 0.0346 0.0377
11:01-12:00, Tue., 25 Nov. 0.0397 0.0315 0.0348
10:01-11:00, Tue., 25 Nov. 0.0401 0.0317 0.0359
09:01-10:00, Tue., 25 Nov. 0.0411 0.0293 0.0349
08:01-09:00, Tue., 25 Nov. 0.0338 0.0287 0.0315
07:01-08:00, Tue., 25 Nov. 0.0337 0.0290 0.0312
06:01-07:00, Tue., 25 Nov. 0.0343 0.0294 0.0316
05:01-06:00, Tue., 25 Nov. 0.0331 0.0289 0.0310
04:01-05:00, Tue., 25 Nov. 0.0353 0.0290 0.0314
03:01-04:00, Tue., 25 Nov. 0.0336 0.0288 0.0309
02:01-03:00, Tue., 25 Nov. 0.0333 0.0292 0.0314
01:01-02:00, Tue., 25 Nov. 0.0339 0.0289 0.0315
00:01-01:00, Tue., 25 Nov. 0.0332 0.0287 0.0307
23:01-24:00, Mon., 24 Nov. 0.0336 0.0294 0.0310
22:01-23:00, Mon., 24 Nov. 0.0330 0.0288 0.0305
21:01-22:00, Mon., 24 Nov. 0.0326 0.0289 0.0304
20:01-21:00, Mon., 24 Nov. 0.0325 0.0279 0.0302
19:01-20:00, Mon., 24 Nov. 0.0318 0.0279 0.0300
18:01-19:00, Mon., 24 Nov. 0.0334 0.0278 0.0301
17:01-18:00, Mon., 24 Nov. 0.0328 0.0280 0.0298
16:01-17:00, Mon., 24 Nov. 0.0323 0.0274 0.0302
15:01-16:00, Mon., 24 Nov. 0.0332 0.0276 0.0302
14:01-15:00, Mon., 24 Nov. 0.0328 0.0286 0.0305
13:01-14:00, Mon., 24 Nov. 0.0333 0.0282 0.0306
12:01-13:00, Mon., 24 Nov. 0.0326 0.0270 0.0307
11:01-12:00, Mon., 24 Nov. 0.0330 0.0280 0.0311
10:01-11:00, Mon., 24 Nov. 0.0339 0.0283 0.0312
09:01-10:00, Mon., 24 Nov. 0.0342 0.0296 0.0317
08:01-09:00, Mon., 24 Nov. 0.0344 0.0294 0.0322
07:01-08:00, Mon., 24 Nov. 0.0338 0.0295 0.0317
06:01-07:00, Mon., 24 Nov. 0.0340 0.0294 0.0313
05:01-06:00, Mon., 24 Nov. 0.0332 0.0296 0.0313
04:01-05:00, Mon., 24 Nov. 0.0333 0.0289 0.0314
03:01-04:00, Mon., 24 Nov. 0.0338 0.0297 0.0319
02:01-03:00, Mon., 24 Nov. 0.0334 0.0296 0.0314
01:01-02:00, Mon., 24 Nov. 0.0329 0.0283 0.0309
00:01-01:00, Mon., 24 Nov. 0.0327 0.0287 0.0306
23:01-24:00, Sun., 23 Nov. 0.0326 0.0288 0.0309
22:01-23:00, Sun., 23 Nov. 0.0335 0.0281 0.0310
21:01-22:00, Sun., 23 Nov. 0.0326 0.0290 0.0307
20:01-21:00, Sun., 23 Nov. 0.0324 0.0283 0.0306
19:01-20:00, Sun., 23 Nov. 0.0326 0.0282 0.0306
18:01-19:00, Sun., 23 Nov. 0.0322 0.0280 0.0302
17:01-18:00, Sun., 23 Nov. 0.0324 0.0280 0.0304
16:01-17:00, Sun., 23 Nov. 0.0332 0.0282 0.0304
15:01-16:00, Sun., 23 Nov. 0.0334 0.0283 0.0307
14:01-15:00, Sun., 23 Nov. 0.0326 0.0289 0.0307
13:01-14:00, Sun., 23 Nov. 0.0321 0.0283 0.0305
12:01-13:00, Sun., 23 Nov. 0.0326 0.0289 0.0305
11:01-12:00, Sun., 23 Nov. 0.0322 0.0283 0.0304