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
17:01-18:00, Sat., 08 Nov. 0.0309 0.0266 0.0290
16:01-17:00, Sat., 08 Nov. 0.0315 0.0270 0.0289
15:01-16:00, Sat., 08 Nov. 0.0315 0.0273 0.0294
14:01-15:00, Sat., 08 Nov. 0.0311 0.0278 0.0296
13:01-14:00, Sat., 08 Nov. 0.0319 0.0280 0.0295
12:01-13:00, Sat., 08 Nov. 0.0327 0.0286 0.0301
11:01-12:00, Sat., 08 Nov. 0.0323 0.0276 0.0301
10:01-11:00, Sat., 08 Nov. 0.0322 0.0273 0.0302
09:01-10:00, Sat., 08 Nov. 0.0322 0.0273 0.0300
08:01-09:00, Sat., 08 Nov. 0.0322 0.0280 0.0300
07:01-08:00, Sat., 08 Nov. 0.0317 0.0277 0.0295
06:01-07:00, Sat., 08 Nov. 0.0315 0.0277 0.0297
05:01-06:00, Sat., 08 Nov. 0.0315 0.0276 0.0296
04:01-05:00, Sat., 08 Nov. 0.0328 0.0270 0.0298
03:01-04:00, Sat., 08 Nov. 0.0323 0.0280 0.0298
02:01-03:00, Sat., 08 Nov. 0.0330 0.0278 0.0299
01:01-02:00, Sat., 08 Nov. 0.0318 0.0280 0.0299
00:01-01:00, Sat., 08 Nov. 0.0325 0.0273 0.0297
23:01-24:00, Fri., 07 Nov. 0.0315 0.0274 0.0295
22:01-23:00, Fri., 07 Nov. 0.0322 0.0278 0.0297
21:01-22:00, Fri., 07 Nov. 0.0315 0.0281 0.0294
20:01-21:00, Fri., 07 Nov. 0.0313 0.0274 0.0295
19:01-20:00, Fri., 07 Nov. 0.0311 0.0263 0.0296
18:01-19:00, Fri., 07 Nov. 0.0337 0.0266 0.0296
17:01-18:00, Fri., 07 Nov. 0.0311 0.0276 0.0296
16:01-17:00, Fri., 07 Nov. 0.0326 0.0281 0.0301
15:01-16:00, Fri., 07 Nov. 0.0316 0.0271 0.0295
14:01-15:00, Fri., 07 Nov. 0.0319 0.0278 0.0298
13:01-14:00, Fri., 07 Nov. 0.0320 0.0280 0.0299
12:01-13:00, Fri., 07 Nov. 0.0320 0.0280 0.0298
11:01-12:00, Fri., 07 Nov. 0.0329 0.0274 0.0294
10:01-11:00, Fri., 07 Nov. 0.0314 0.0270 0.0294
09:01-10:00, Fri., 07 Nov. 0.0318 0.0259 0.0294
08:01-09:00, Fri., 07 Nov. 0.0320 0.0277 0.0296
07:01-08:00, Fri., 07 Nov. 0.0315 0.0277 0.0295
06:01-07:00, Fri., 07 Nov. 0.0323 0.0276 0.0294
05:01-06:00, Fri., 07 Nov. 0.0308 0.0275 0.0295
04:01-05:00, Fri., 07 Nov. 0.0319 0.0272 0.0295
03:01-04:00, Fri., 07 Nov. 0.0314 0.0270 0.0294
02:01-03:00, Fri., 07 Nov. 0.0312 0.0275 0.0294
01:01-02:00, Fri., 07 Nov. 0.0315 0.0275 0.0295
00:01-01:00, Fri., 07 Nov. 0.0315 0.0277 0.0295
23:01-24:00, Thu., 06 Nov. 0.0319 0.0279 0.0295
22:01-23:00, Thu., 06 Nov. 0.0324 0.0270 0.0296
21:01-22:00, Thu., 06 Nov. 0.0311 0.0273 0.0295
20:01-21:00, Thu., 06 Nov. 0.0324 0.0276 0.0297
19:01-20:00, Thu., 06 Nov. 0.0322 0.0270 0.0294
18:01-19:00, Thu., 06 Nov. 0.0307 0.0270 0.0290
17:01-18:00, Thu., 06 Nov. 0.0318 0.0273 0.0295
16:01-17:00, Thu., 06 Nov. 0.0321 0.0277 0.0297
15:01-16:00, Thu., 06 Nov. 0.0322 0.0273 0.0296
14:01-15:00, Thu., 06 Nov. 0.0318 0.0278 0.0298
13:01-14:00, Thu., 06 Nov. 0.0320 0.0279 0.0298
12:01-13:00, Thu., 06 Nov. 0.0322 0.0280 0.0300
11:01-12:00, Thu., 06 Nov. 0.0329 0.0279 0.0297
10:01-11:00, Thu., 06 Nov. 0.0316 0.0278 0.0295
09:01-10:00, Thu., 06 Nov. 0.0322 0.0273 0.0297
08:01-09:00, Thu., 06 Nov. 0.0329 0.0280 0.0303
07:01-08:00, Thu., 06 Nov. 0.0325 0.0285 0.0304
06:01-07:00, Thu., 06 Nov. 0.0360 0.0295 0.0323
05:01-06:00, Thu., 06 Nov. 0.0398 0.0342 0.0367
04:01-05:00, Thu., 06 Nov. 0.0398 0.0346 0.0376
03:01-04:00, Thu., 06 Nov. 0.0397 0.0288 0.0335
02:01-03:00, Thu., 06 Nov. 0.0318 0.0283 0.0302
01:01-02:00, Thu., 06 Nov. 0.0324 0.0284 0.0305
00:01-01:00, Thu., 06 Nov. 0.0332 0.0289 0.0308
23:01-24:00, Wed., 05 Nov. 0.0338 0.0280 0.0308
22:01-23:00, Wed., 05 Nov. 0.0323 0.0270 0.0302
21:01-22:00, Wed., 05 Nov. 0.0325 0.0279 0.0301
20:01-21:00, Wed., 05 Nov. 0.0320 0.0283 0.0299
19:01-20:00, Wed., 05 Nov. 0.0333 0.0277 0.0301
18:01-19:00, Wed., 05 Nov. 0.0318 0.0283 0.0300
17:01-18:00, Wed., 05 Nov. 0.0318 0.0272 0.0295
16:01-17:00, Wed., 05 Nov. 0.0322 0.0277 0.0299
15:01-16:00, Wed., 05 Nov. 0.0323 0.0276 0.0300
14:01-15:00, Wed., 05 Nov. 0.0327 0.0275 0.0301
13:01-14:00, Wed., 05 Nov. 0.0318 0.0285 0.0302
12:01-13:00, Wed., 05 Nov. 0.0325 0.0283 0.0301
11:01-12:00, Wed., 05 Nov. 0.0326 0.0278 0.0303
10:01-11:00, Wed., 05 Nov. 0.0325 0.0283 0.0306
09:01-10:00, Wed., 05 Nov. 0.0326 0.0283 0.0304
08:01-09:00, Wed., 05 Nov. 0.0323 0.0279 0.0305
07:01-08:00, Wed., 05 Nov. 0.0325 0.0276 0.0305
06:01-07:00, Wed., 05 Nov. 0.0322 0.0280 0.0301
05:01-06:00, Wed., 05 Nov. 0.0328 0.0281 0.0304
04:01-05:00, Wed., 05 Nov. 0.0327 0.0275 0.0301
03:01-04:00, Wed., 05 Nov. 0.0325 0.0284 0.0302
02:01-03:00, Wed., 05 Nov. 0.0322 0.0276 0.0301
01:01-02:00, Wed., 05 Nov. 0.0333 0.0282 0.0303
00:01-01:00, Wed., 05 Nov. 0.0325 0.0269 0.0295
23:01-24:00, Tue., 04 Nov. 0.0313 0.0271 0.0291
22:01-23:00, Tue., 04 Nov. 0.0311 0.0270 0.0291
21:01-22:00, Tue., 04 Nov. 0.0314 0.0276 0.0291
20:01-21:00, Tue., 04 Nov. 0.0310 0.0269 0.0290
19:01-20:00, Tue., 04 Nov. 0.0311 0.0263 0.0290
18:01-19:00, Tue., 04 Nov. 0.0311 0.0261 0.0290
17:01-18:00, Tue., 04 Nov. 0.0307 0.0270 0.0288
16:01-17:00, Tue., 04 Nov. 0.0317 0.0272 0.0293
15:01-16:00, Tue., 04 Nov. 0.0326 0.0268 0.0293
14:01-15:00, Tue., 04 Nov. 0.0315 0.0266 0.0295
13:01-14:00, Tue., 04 Nov. 0.0309 0.0270 0.0293
12:01-13:00, Tue., 04 Nov. 0.0318 0.0274 0.0296
11:01-12:00, Tue., 04 Nov. 0.0315 0.0270 0.0294
10:01-11:00, Tue., 04 Nov. 0.0316 0.0275 0.0293
09:01-10:00, Tue., 04 Nov. 0.0318 0.0272 0.0294
08:01-09:00, Tue., 04 Nov. 0.0317 0.0270 0.0295
07:01-08:00, Tue., 04 Nov. 0.0315 0.0275 0.0295
06:01-07:00, Tue., 04 Nov. 0.0306 0.0270 0.0291
05:01-06:00, Tue., 04 Nov. 0.0315 0.0257 0.0291
04:01-05:00, Tue., 04 Nov. 0.0313 0.0270 0.0290
03:01-04:00, Tue., 04 Nov. 0.0323 0.0274 0.0292
02:01-03:00, Tue., 04 Nov. 0.0313 0.0273 0.0293
01:01-02:00, Tue., 04 Nov. 0.0318 0.0279 0.0295
00:01-01:00, Tue., 04 Nov. 0.0319 0.0281 0.0297
23:01-24:00, Mon., 03 Nov. 0.0322 0.0276 0.0298
22:01-23:00, Mon., 03 Nov. 0.0325 0.0271 0.0299
21:01-22:00, Mon., 03 Nov. 0.0326 0.0276 0.0297
20:01-21:00, Mon., 03 Nov. 0.0318 0.0263 0.0296
19:01-20:00, Mon., 03 Nov. 0.0328 0.0280 0.0299
18:01-19:00, Mon., 03 Nov. 0.0322 0.0281 0.0300
17:01-18:00, Mon., 03 Nov. 0.0321 0.0284 0.0300
16:01-17:00, Mon., 03 Nov. 0.0322 0.0270 0.0300
15:01-16:00, Mon., 03 Nov. 0.0334 0.0288 0.0307
14:01-15:00, Mon., 03 Nov. 0.0322 0.0273 0.0303
13:01-14:00, Mon., 03 Nov. 0.0339 0.0273 0.0306
12:01-13:00, Mon., 03 Nov. 0.0326 0.0289 0.0306
11:01-12:00, Mon., 03 Nov. 0.0331 0.0284 0.0303
10:01-11:00, Mon., 03 Nov. 0.0333 0.0289 0.0310
09:01-10:00, Mon., 03 Nov. 0.0332 0.0284 0.0309
08:01-09:00, Mon., 03 Nov. 0.0342 0.0287 0.0306
07:01-08:00, Mon., 03 Nov. 0.0332 0.0288 0.0310
06:01-07:00, Mon., 03 Nov. 0.0328 0.0280 0.0306
05:01-06:00, Mon., 03 Nov. 0.0332 0.0288 0.0308
04:01-05:00, Mon., 03 Nov. 0.0332 0.0279 0.0306
03:01-04:00, Mon., 03 Nov. 0.0342 0.0286 0.0308
02:01-03:00, Mon., 03 Nov. 0.0330 0.0273 0.0306
01:01-02:00, Mon., 03 Nov. 0.0334 0.0290 0.0308
00:01-01:00, Mon., 03 Nov. 0.0325 0.0283 0.0306
23:01-24:00, Sun., 02 Nov. 0.0328 0.0278 0.0304
22:01-23:00, Sun., 02 Nov. 0.0325 0.0284 0.0303
21:01-22:00, Sun., 02 Nov. 0.0325 0.0281 0.0299
20:01-21:00, Sun., 02 Nov. 0.0321 0.0277 0.0298
19:01-20:00, Sun., 02 Nov. 0.0326 0.0280 0.0298
18:01-19:00, Sun., 02 Nov. 0.0315 0.0280 0.0298
17:01-18:00, Sun., 02 Nov. 0.0324 0.0274 0.0297
16:01-17:00, Sun., 02 Nov. 0.0318 0.0276 0.0299
15:01-16:00, Sun., 02 Nov. 0.0318 0.0271 0.0297
14:01-15:00, Sun., 02 Nov. 0.0322 0.0276 0.0301
13:01-14:00, Sun., 02 Nov. 0.0336 0.0289 0.0304
12:01-13:00, Sun., 02 Nov. 0.0333 0.0283 0.0304
11:01-12:00, Sun., 02 Nov. 0.0322 0.0279 0.0305
10:01-11:00, Sun., 02 Nov. 0.0329 0.0284 0.0306
09:01-10:00, Sun., 02 Nov. 0.0325 0.0283 0.0303
08:01-09:00, Sun., 02 Nov. 0.0324 0.0284 0.0302
07:01-08:00, Sun., 02 Nov. 0.0316 0.0285 0.0301
06:01-07:00, Sun., 02 Nov. 0.0320 0.0283 0.0303
05:01-06:00, Sun., 02 Nov. 0.0320 0.0276 0.0305
04:01-05:00, Sun., 02 Nov. 0.0322 0.0277 0.0300
03:01-04:00, Sun., 02 Nov. 0.0321 0.0280 0.0298
02:01-03:00, Sun., 02 Nov. 0.0331 0.0278 0.0298
01:01-02:00, Sun., 02 Nov. 0.0319 0.0275 0.0299
00:01-01:00, Sun., 02 Nov. 0.0315 0.0273 0.0296
23:01-24:00, Sat., 01 Nov. 0.0311 0.0276 0.0293
22:01-23:00, Sat., 01 Nov. 0.0314 0.0270 0.0293
21:01-22:00, Sat., 01 Nov. 0.0321 0.0275 0.0292
20:01-21:00, Sat., 01 Nov. 0.0318 0.0273 0.0295
19:01-20:00, Sat., 01 Nov. 0.0322 0.0269 0.0296
18:01-19:00, Sat., 01 Nov. 0.0327 0.0275 0.0292
17:01-18:00, Sat., 01 Nov. 0.0325 0.0277 0.0297
16:01-17:00, Sat., 01 Nov. 0.0315 0.0272 0.0295
15:01-16:00, Sat., 01 Nov. 0.0324 0.0281 0.0298
14:01-15:00, Sat., 01 Nov. 0.0318 0.0283 0.0298
13:01-14:00, Sat., 01 Nov. 0.0316 0.0266 0.0293
12:01-13:00, Sat., 01 Nov. 0.0322 0.0274 0.0296
11:01-12:00, Sat., 01 Nov. 0.0322 0.0275 0.0295
10:01-11:00, Sat., 01 Nov. 0.0318 0.0270 0.0298
09:01-10:00, Sat., 01 Nov. 0.0316 0.0272 0.0300
08:01-09:00, Sat., 01 Nov. 0.0318 0.0274 0.0297
07:01-08:00, Sat., 01 Nov. 0.0311 0.0270 0.0293
06:01-07:00, Sat., 01 Nov. 0.0310 0.0259 0.0292
05:01-06:00, Sat., 01 Nov. 0.0314 0.0270 0.0294
04:01-05:00, Sat., 01 Nov. 0.0313 0.0278 0.0298
03:01-04:00, Sat., 01 Nov. 0.0345 0.0289 0.0311
02:01-03:00, Sat., 01 Nov. 0.0347 0.0306 0.0325
01:01-02:00, Sat., 01 Nov. 0.0346 0.0304 0.0327
00:01-01:00, Sat., 01 Nov. 0.0392 0.0302 0.0350
23:01-24:00, Fri., 31 Oct. 0.0488 0.0366 0.0433
22:01-23:00, Fri., 31 Oct. 0.0536 0.0460 0.0500
21:01-22:00, Fri., 31 Oct. 0.0511 0.0443 0.0482
20:01-21:00, Fri., 31 Oct. 0.0488 0.0424 0.0453
19:01-20:00, Fri., 31 Oct. 0.0477 0.0417 0.0451
18:01-19:00, Fri., 31 Oct. 0.0469 0.0382 0.0426
17:01-18:00, Fri., 31 Oct. 0.0409 0.0355 0.0380
16:01-17:00, Fri., 31 Oct. 0.0390 0.0308 0.0351
15:01-16:00, Fri., 31 Oct. 0.0339 0.0285 0.0311
14:01-15:00, Fri., 31 Oct. 0.0326 0.0279 0.0308
13:01-14:00, Fri., 31 Oct. 0.0329 0.0288 0.0307
12:01-13:00, Fri., 31 Oct. 0.0327 0.0283 0.0306
11:01-12:00, Fri., 31 Oct. 0.0320 0.0280 0.0302
10:01-11:00, Fri., 31 Oct. 0.0332 0.0281 0.0304
09:01-10:00, Fri., 31 Oct. 0.0339 0.0279 0.0302
08:01-09:00, Fri., 31 Oct. 0.0325 0.0279 0.0299
07:01-08:00, Fri., 31 Oct. 0.0319 0.0280 0.0303
06:01-07:00, Fri., 31 Oct. 0.0322 0.0279 0.0303
05:01-06:00, Fri., 31 Oct. 0.0323 0.0284 0.0304
04:01-05:00, Fri., 31 Oct. 0.0323 0.0286 0.0305
03:01-04:00, Fri., 31 Oct. 0.0328 0.0282 0.0304
02:01-03:00, Fri., 31 Oct. 0.0317 0.0287 0.0302
01:01-02:00, Fri., 31 Oct. 0.0329 0.0286 0.0306
00:01-01:00, Fri., 31 Oct. 0.0325 0.0280 0.0302
23:01-24:00, Thu., 30 Oct. 0.0315 0.0272 0.0298
22:01-23:00, Thu., 30 Oct. 0.0321 0.0275 0.0296
21:01-22:00, Thu., 30 Oct. 0.0312 0.0275 0.0295
20:01-21:00, Thu., 30 Oct. 0.0311 0.0267 0.0294
19:01-20:00, Thu., 30 Oct. 0.0316 0.0270 0.0295
18:01-19:00, Thu., 30 Oct. 0.0314 0.0274 0.0291
17:01-18:00, Thu., 30 Oct. 0.0318 0.0270 0.0296
16:01-17:00, Thu., 30 Oct. 0.0320 0.0272 0.0295
15:01-16:00, Thu., 30 Oct. 0.0310 0.0275 0.0292
14:01-15:00, Thu., 30 Oct. 0.0314 0.0271 0.0293
13:01-14:00, Thu., 30 Oct. 0.0324 0.0278 0.0300
12:01-13:00, Thu., 30 Oct. 0.0323 0.0279 0.0299
11:01-12:00, Thu., 30 Oct. 0.0314 0.0268 0.0297
10:01-11:00, Thu., 30 Oct. 0.0311 0.0269 0.0295
09:01-10:00, Thu., 30 Oct. 0.0319 0.0275 0.0298
08:01-09:00, Thu., 30 Oct. 0.0330 0.0275 0.0298
07:01-08:00, Thu., 30 Oct. 0.0318 0.0279 0.0298
06:01-07:00, Thu., 30 Oct. 0.0331 0.0280 0.0300
05:01-06:00, Thu., 30 Oct. 0.0329 0.0273 0.0299
04:01-05:00, Thu., 30 Oct. 0.0323 0.0281 0.0299
03:01-04:00, Thu., 30 Oct. 0.0330 0.0275 0.0300
02:01-03:00, Thu., 30 Oct. 0.0326 0.0277 0.0299
01:01-02:00, Thu., 30 Oct. 0.0319 0.0270 0.0298
00:01-01:00, Thu., 30 Oct. 0.0318 0.0276 0.0300
23:01-24:00, Wed., 29 Oct. 0.0325 0.0273 0.0298
22:01-23:00, Wed., 29 Oct. 0.0322 0.0280 0.0297
21:01-22:00, Wed., 29 Oct. 0.0315 0.0273 0.0298
20:01-21:00, Wed., 29 Oct. 0.0315 0.0274 0.0293
19:01-20:00, Wed., 29 Oct. 0.0318 0.0276 0.0296
18:01-19:00, Wed., 29 Oct. 0.0314 0.0265 0.0293