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

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
14:01-15:00, Sun., 06 Jul. 0.0362 0.0317 0.0341
13:01-14:00, Sun., 06 Jul. 0.0364 0.0307 0.0336
12:01-13:00, Sun., 06 Jul. 0.0371 0.0311 0.0337
11:01-12:00, Sun., 06 Jul. 0.0368 0.0303 0.0337
10:01-11:00, Sun., 06 Jul. 0.0363 0.0315 0.0336
09:01-10:00, Sun., 06 Jul. 0.0363 0.0312 0.0334
08:01-09:00, Sun., 06 Jul. 0.0366 0.0312 0.0339
07:01-08:00, Sun., 06 Jul. 0.0363 0.0318 0.0342
06:01-07:00, Sun., 06 Jul. 0.0364 0.0321 0.0340
05:01-06:00, Sun., 06 Jul. 0.0352 0.0306 0.0332
04:01-05:00, Sun., 06 Jul. 0.0356 0.0311 0.0333
03:01-04:00, Sun., 06 Jul. 0.0360 0.0310 0.0335
02:01-03:00, Sun., 06 Jul. 0.0363 0.0322 0.0340
01:01-02:00, Sun., 06 Jul. 0.0370 0.0318 0.0343
00:01-01:00, Sun., 06 Jul. 0.0379 0.0337 0.0356
23:01-24:00, Sat., 05 Jul. 0.0458 0.0354 0.0398
22:01-23:00, Sat., 05 Jul. 0.0720 0.0441 0.0566
21:01-22:00, Sat., 05 Jul. 0.0981 0.0712 0.0864
20:01-21:00, Sat., 05 Jul. 0.102 0.0512 0.0846
19:01-20:00, Sat., 05 Jul. 0.0513 0.0319 0.0373
18:01-19:00, Sat., 05 Jul. 0.0367 0.0308 0.0334
17:01-18:00, Sat., 05 Jul. 0.0367 0.0317 0.0339
16:01-17:00, Sat., 05 Jul. 0.0366 0.0315 0.0337
15:01-16:00, Sat., 05 Jul. 0.0363 0.0318 0.0336
14:01-15:00, Sat., 05 Jul. 0.0365 0.0308 0.0337
13:01-14:00, Sat., 05 Jul. 0.0363 0.0317 0.0338
12:01-13:00, Sat., 05 Jul. 0.0367 0.0313 0.0347
11:01-12:00, Sat., 05 Jul. 0.0368 0.0318 0.0339
10:01-11:00, Sat., 05 Jul. 0.0360 0.0325 0.0340
09:01-10:00, Sat., 05 Jul. 0.0370 0.0311 0.0342
08:01-09:00, Sat., 05 Jul. 0.0392 0.0318 0.0347
07:01-08:00, Sat., 05 Jul. 0.0373 0.0337 0.0355
06:01-07:00, Sat., 05 Jul. 0.0375 0.0325 0.0353
05:01-06:00, Sat., 05 Jul. 0.0376 0.0332 0.0350
04:01-05:00, Sat., 05 Jul. 0.0368 0.0318 0.0342
03:01-04:00, Sat., 05 Jul. 0.0362 0.0309 0.0337
02:01-03:00, Sat., 05 Jul. 0.0354 0.0309 0.0335
01:01-02:00, Sat., 05 Jul. 0.0360 0.0318 0.0337
00:01-01:00, Sat., 05 Jul. 0.0367 0.0317 0.0338
23:01-24:00, Fri., 04 Jul. 0.0404 0.0325 0.0362
22:01-23:00, Fri., 04 Jul. 0.0530 0.0380 0.0440
21:01-22:00, Fri., 04 Jul. 0.0698 0.0513 0.0613
20:01-21:00, Fri., 04 Jul. 0.0709 0.0646 0.0678
19:01-20:00, Fri., 04 Jul. 0.0673 0.0426 0.0611
18:01-19:00, Fri., 04 Jul. 0.0419 0.0311 0.0336
17:01-18:00, Fri., 04 Jul. 0.0354 0.0304 0.0333
16:01-17:00, Fri., 04 Jul. 0.0353 0.0310 0.0333
15:01-16:00, Fri., 04 Jul. 0.0351 0.0295 0.0330
14:01-15:00, Fri., 04 Jul. 0.0358 0.0299 0.0332
13:01-14:00, Fri., 04 Jul. 0.0356 0.0309 0.0332
12:01-13:00, Fri., 04 Jul. 0.0354 0.0301 0.0331
11:01-12:00, Fri., 04 Jul. 0.0359 0.0309 0.0334
10:01-11:00, Fri., 04 Jul. 0.0365 0.0289 0.0332
09:01-10:00, Fri., 04 Jul. 0.0361 0.0315 0.0336
08:01-09:00, Fri., 04 Jul. 0.0364 0.0306 0.0334
07:01-08:00, Fri., 04 Jul. 0.0362 0.0314 0.0334
06:01-07:00, Fri., 04 Jul. 0.0357 0.0313 0.0336
05:01-06:00, Fri., 04 Jul. 0.0357 0.0310 0.0336
04:01-05:00, Fri., 04 Jul. 0.0353 0.0311 0.0331
03:01-04:00, Fri., 04 Jul. 0.0362 0.0306 0.0331
02:01-03:00, Fri., 04 Jul. 0.0356 0.0304 0.0333
01:01-02:00, Fri., 04 Jul. 0.0353 0.0300 0.0331
00:01-01:00, Fri., 04 Jul. 0.0353 0.0305 0.0332
23:01-24:00, Thu., 03 Jul. 0.0356 0.0314 0.0333
22:01-23:00, Thu., 03 Jul. 0.0354 0.0314 0.0331
21:01-22:00, Thu., 03 Jul. 0.0356 0.0311 0.0333
20:01-21:00, Thu., 03 Jul. 0.0358 0.0310 0.0332
19:01-20:00, Thu., 03 Jul. 0.0360 0.0308 0.0332
18:01-19:00, Thu., 03 Jul. 0.0351 0.0318 0.0334
17:01-18:00, Thu., 03 Jul. 0.0360 0.0308 0.0333
16:01-17:00, Thu., 03 Jul. 0.0356 0.0313 0.0335
15:01-16:00, Thu., 03 Jul. 0.0344 0.0304 0.0329
14:01-15:00, Thu., 03 Jul. 0.0353 0.0313 0.0332
13:01-14:00, Thu., 03 Jul. 0.0362 0.0297 0.0333
12:01-13:00, Thu., 03 Jul. 0.0353 0.0314 0.0335
11:01-12:00, Thu., 03 Jul. 0.0360 0.0310 0.0334
10:01-11:00, Thu., 03 Jul. 0.0363 0.0318 0.0338
09:01-10:00, Thu., 03 Jul. 0.0361 0.0317 0.0340
08:01-09:00, Thu., 03 Jul. 0.0371 0.0321 0.0349
07:01-08:00, Thu., 03 Jul. 0.0377 0.0332 0.0354
06:01-07:00, Thu., 03 Jul. 0.0385 0.0333 0.0361
05:01-06:00, Thu., 03 Jul. 0.0388 0.0344 0.0364
04:01-05:00, Thu., 03 Jul. 0.0390 0.0338 0.0361
03:01-04:00, Thu., 03 Jul. 0.0391 0.0332 0.0357
02:01-03:00, Thu., 03 Jul. 0.0378 0.0312 0.0348
01:01-02:00, Thu., 03 Jul. 0.0359 0.0313 0.0336
00:01-01:00, Thu., 03 Jul. 0.0364 0.0315 0.0337
23:01-24:00, Wed., 02 Jul. 0.0359 0.0304 0.0337
22:01-23:00, Wed., 02 Jul. 0.0370 0.0313 0.0336
21:01-22:00, Wed., 02 Jul. 0.0369 0.0313 0.0335
20:01-21:00, Wed., 02 Jul. 0.0360 0.0308 0.0336
19:01-20:00, Wed., 02 Jul. 0.0364 0.0314 0.0339
18:01-19:00, Wed., 02 Jul. 0.0357 0.0316 0.0336
17:01-18:00, Wed., 02 Jul. 0.0369 0.0313 0.0338
16:01-17:00, Wed., 02 Jul. 0.0356 0.0306 0.0334
15:01-16:00, Wed., 02 Jul. 0.0363 0.0313 0.0336
14:01-15:00, Wed., 02 Jul. 0.0361 0.0312 0.0337
13:01-14:00, Wed., 02 Jul. 0.0359 0.0320 0.0340
12:01-13:00, Wed., 02 Jul. 0.0358 0.0312 0.0336
11:01-12:00, Wed., 02 Jul. 0.0361 0.0315 0.0341
10:01-11:00, Wed., 02 Jul. 0.0373 0.0320 0.0341
09:01-10:00, Wed., 02 Jul. 0.0382 0.0323 0.0349
08:01-09:00, Wed., 02 Jul. 0.0376 0.0334 0.0353
07:01-08:00, Wed., 02 Jul. 0.0382 0.0336 0.0354
06:01-07:00, Wed., 02 Jul. 0.0373 0.0330 0.0355
05:01-06:00, Wed., 02 Jul. 0.0370 0.0331 0.0348
04:01-05:00, Wed., 02 Jul. 0.0367 0.0318 0.0346
03:01-04:00, Wed., 02 Jul. 0.0369 0.0318 0.0347
02:01-03:00, Wed., 02 Jul. 0.0366 0.0318 0.0345
01:01-02:00, Wed., 02 Jul. 0.0367 0.0327 0.0343
00:01-01:00, Wed., 02 Jul. 0.0361 0.0320 0.0338
23:01-24:00, Tue., 01 Jul. 0.0356 0.0313 0.0335
22:01-23:00, Tue., 01 Jul. 0.0378 0.0318 0.0344
21:01-22:00, Tue., 01 Jul. 0.0394 0.0340 0.0370
20:01-21:00, Tue., 01 Jul. 0.0434 0.0368 0.0401
19:01-20:00, Tue., 01 Jul. 0.0429 0.0321 0.0388
18:01-19:00, Tue., 01 Jul. 0.0362 0.0305 0.0336
17:01-18:00, Tue., 01 Jul. 0.0360 0.0318 0.0337
16:01-17:00, Tue., 01 Jul. 0.0363 0.0310 0.0339
15:01-16:00, Tue., 01 Jul. 0.0365 0.0310 0.0333
14:01-15:00, Tue., 01 Jul. 0.0362 0.0315 0.0338
13:01-14:00, Tue., 01 Jul. 0.0369 0.0302 0.0333
12:01-13:00, Tue., 01 Jul. 0.0361 0.0302 0.0336
11:01-12:00, Tue., 01 Jul. 0.0360 0.0300 0.0336
10:01-11:00, Tue., 01 Jul. 0.0352 0.0313 0.0335
09:01-10:00, Tue., 01 Jul. 0.0369 0.0317 0.0337
08:01-09:00, Tue., 01 Jul. 0.0363 0.0315 0.0335
07:01-08:00, Tue., 01 Jul. 0.0362 0.0319 0.0339
06:01-07:00, Tue., 01 Jul. 0.0353 0.0320 0.0337
05:01-06:00, Tue., 01 Jul. 0.0369 0.0318 0.0337
04:01-05:00, Tue., 01 Jul. 0.0360 0.0308 0.0336
03:01-04:00, Tue., 01 Jul. 0.0357 0.0316 0.0336
02:01-03:00, Tue., 01 Jul. 0.0362 0.0311 0.0335
01:01-02:00, Tue., 01 Jul. 0.0355 0.0318 0.0337
00:01-01:00, Tue., 01 Jul. 0.0362 0.0313 0.0340
23:01-24:00, Mon., 30 Jun. 0.0354 0.0318 0.0338
22:01-23:00, Mon., 30 Jun. 0.0371 0.0317 0.0338
21:01-22:00, Mon., 30 Jun. 0.0356 0.0308 0.0336
20:01-21:00, Mon., 30 Jun. 0.0358 0.0311 0.0337
19:01-20:00, Mon., 30 Jun. 0.0360 0.0305 0.0335
18:01-19:00, Mon., 30 Jun. 0.0356 0.0313 0.0336
17:01-18:00, Mon., 30 Jun. 0.0363 0.0311 0.0336
16:01-17:00, Mon., 30 Jun. 0.0360 0.0315 0.0337
15:01-16:00, Mon., 30 Jun. 0.0372 0.0305 0.0333
14:01-15:00, Mon., 30 Jun. 0.0356 0.0298 0.0335
13:01-14:00, Mon., 30 Jun. 0.0370 0.0316 0.0336
12:01-13:00, Mon., 30 Jun. 0.0360 0.0315 0.0335
11:01-12:00, Mon., 30 Jun. 0.0361 0.0313 0.0333
10:01-11:00, Mon., 30 Jun. 0.0358 0.0305 0.0335
09:01-10:00, Mon., 30 Jun. 0.0366 0.0318 0.0341
08:01-09:00, Mon., 30 Jun. 0.0362 0.0315 0.0338
07:01-08:00, Mon., 30 Jun. 0.0361 0.0318 0.0339
06:01-07:00, Mon., 30 Jun. 0.0363 0.0315 0.0343
05:01-06:00, Mon., 30 Jun. 0.0373 0.0323 0.0348
04:01-05:00, Mon., 30 Jun. 0.0377 0.0331 0.0350
03:01-04:00, Mon., 30 Jun. 0.0369 0.0322 0.0345
02:01-03:00, Mon., 30 Jun. 0.0377 0.0320 0.0349
01:01-02:00, Mon., 30 Jun. 0.0365 0.0325 0.0343
00:01-01:00, Mon., 30 Jun. 0.0363 0.0304 0.0338
23:01-24:00, Sun., 29 Jun. 0.0361 0.0311 0.0338
22:01-23:00, Sun., 29 Jun. 0.0357 0.0319 0.0337
21:01-22:00, Sun., 29 Jun. 0.0359 0.0311 0.0336
20:01-21:00, Sun., 29 Jun. 0.0360 0.0318 0.0338
19:01-20:00, Sun., 29 Jun. 0.0363 0.0315 0.0335
18:01-19:00, Sun., 29 Jun. 0.0360 0.0318 0.0337
17:01-18:00, Sun., 29 Jun. 0.0353 0.0313 0.0334
16:01-17:00, Sun., 29 Jun. 0.0365 0.0315 0.0336
15:01-16:00, Sun., 29 Jun. 0.0361 0.0312 0.0334
14:01-15:00, Sun., 29 Jun. 0.0362 0.0312 0.0333
13:01-14:00, Sun., 29 Jun. 0.0354 0.0310 0.0334
12:01-13:00, Sun., 29 Jun. 0.0360 0.0310 0.0337
11:01-12:00, Sun., 29 Jun. 0.0355 0.0309 0.0336
10:01-11:00, Sun., 29 Jun. 0.0364 0.0318 0.0344
09:01-10:00, Sun., 29 Jun. 0.0369 0.0321 0.0345
08:01-09:00, Sun., 29 Jun. 0.0371 0.0315 0.0341
07:01-08:00, Sun., 29 Jun. 0.0366 0.0322 0.0344
06:01-07:00, Sun., 29 Jun. 0.0391 0.0335 0.0356
05:01-06:00, Sun., 29 Jun. 0.0386 0.0330 0.0351
04:01-05:00, Sun., 29 Jun. 0.0370 0.0318 0.0339
03:01-04:00, Sun., 29 Jun. 0.0353 0.0315 0.0336
02:01-03:00, Sun., 29 Jun. 0.0360 0.0306 0.0332
01:01-02:00, Sun., 29 Jun. 0.0353 0.0308 0.0333
00:01-01:00, Sun., 29 Jun. 0.0360 0.0310 0.0333
23:01-24:00, Sat., 28 Jun. 0.0360 0.0311 0.0334
22:01-23:00, Sat., 28 Jun. 0.0356 0.0310 0.0331
21:01-22:00, Sat., 28 Jun. 0.0355 0.0318 0.0335
20:01-21:00, Sat., 28 Jun. 0.0359 0.0312 0.0333
19:01-20:00, Sat., 28 Jun. 0.0360 0.0310 0.0334
18:01-19:00, Sat., 28 Jun. 0.0371 0.0317 0.0339
17:01-18:00, Sat., 28 Jun. 0.0362 0.0306 0.0340
16:01-17:00, Sat., 28 Jun. 0.0361 0.0311 0.0335
15:01-16:00, Sat., 28 Jun. 0.0356 0.0321 0.0334
14:01-15:00, Sat., 28 Jun. 0.0359 0.0315 0.0333
13:01-14:00, Sat., 28 Jun. 0.0356 0.0307 0.0335
12:01-13:00, Sat., 28 Jun. 0.0350 0.0302 0.0330
11:01-12:00, Sat., 28 Jun. 0.0361 0.0311 0.0331
10:01-11:00, Sat., 28 Jun. 0.0354 0.0308 0.0333
09:01-10:00, Sat., 28 Jun. 0.0364 0.0325 0.0341
08:01-09:00, Sat., 28 Jun. 0.0375 0.0318 0.0343
07:01-08:00, Sat., 28 Jun. 0.0376 0.0333 0.0354
06:01-07:00, Sat., 28 Jun. 0.0377 0.0332 0.0351
05:01-06:00, Sat., 28 Jun. 0.0371 0.0322 0.0351
04:01-05:00, Sat., 28 Jun. 0.0369 0.0313 0.0340
03:01-04:00, Sat., 28 Jun. 0.0355 0.0314 0.0334
02:01-03:00, Sat., 28 Jun. 0.0374 0.0307 0.0335
01:01-02:00, Sat., 28 Jun. 0.0373 0.0309 0.0337
00:01-01:00, Sat., 28 Jun. 0.0356 0.0317 0.0337
23:01-24:00, Fri., 27 Jun. 0.0353 0.0308 0.0332
22:01-23:00, Fri., 27 Jun. 0.0353 0.0311 0.0334
21:01-22:00, Fri., 27 Jun. 0.0354 0.0305 0.0334
20:01-21:00, Fri., 27 Jun. 0.0381 0.0318 0.0349
19:01-20:00, Fri., 27 Jun. 0.0399 0.0321 0.0369
18:01-19:00, Fri., 27 Jun. 0.0362 0.0309 0.0335
17:01-18:00, Fri., 27 Jun. 0.0369 0.0310 0.0334
16:01-17:00, Fri., 27 Jun. 0.0360 0.0313 0.0335
15:01-16:00, Fri., 27 Jun. 0.0359 0.0302 0.0333
14:01-15:00, Fri., 27 Jun. 0.0361 0.0303 0.0337
13:01-14:00, Fri., 27 Jun. 0.0370 0.0318 0.0336
12:01-13:00, Fri., 27 Jun. 0.0349 0.0308 0.0332
11:01-12:00, Fri., 27 Jun. 0.0357 0.0317 0.0336
10:01-11:00, Fri., 27 Jun. 0.0359 0.0318 0.0337
09:01-10:00, Fri., 27 Jun. 0.0357 0.0320 0.0340
08:01-09:00, Fri., 27 Jun. 0.0374 0.0314 0.0340
07:01-08:00, Fri., 27 Jun. 0.0367 0.0319 0.0344
06:01-07:00, Fri., 27 Jun. 0.0367 0.0318 0.0341
05:01-06:00, Fri., 27 Jun. 0.0364 0.0313 0.0336
04:01-05:00, Fri., 27 Jun. 0.0367 0.0304 0.0336
03:01-04:00, Fri., 27 Jun. 0.0356 0.0310 0.0334
02:01-03:00, Fri., 27 Jun. 0.0362 0.0315 0.0336
01:01-02:00, Fri., 27 Jun. 0.0345 0.0300 0.0329
00:01-01:00, Fri., 27 Jun. 0.0358 0.0308 0.0335
23:01-24:00, Thu., 26 Jun. 0.0381 0.0315 0.0347
22:01-23:00, Thu., 26 Jun. 0.0403 0.0339 0.0372
21:01-22:00, Thu., 26 Jun. 0.0450 0.0342 0.0393
20:01-21:00, Thu., 26 Jun. 0.0499 0.0434 0.0463
19:01-20:00, Thu., 26 Jun. 0.0468 0.0348 0.0387
18:01-19:00, Thu., 26 Jun. 0.0371 0.0316 0.0341
17:01-18:00, Thu., 26 Jun. 0.0348 0.0307 0.0330
16:01-17:00, Thu., 26 Jun. 0.0579 0.0312 0.0341
15:01-16:00, Thu., 26 Jun. 0.0353 0.0308 0.0330