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
12:01-13:00, Sat., 27 Jul. 0.0369 0.0324 0.0346
11:01-12:00, Sat., 27 Jul. 0.0377 0.0313 0.0344
10:01-11:00, Sat., 27 Jul. 0.0383 0.0320 0.0345
09:01-10:00, Sat., 27 Jul. 0.0379 0.0323 0.0347
08:01-09:00, Sat., 27 Jul. 0.0377 0.0329 0.0350
07:01-08:00, Sat., 27 Jul. 0.0370 0.0328 0.0350
06:01-07:00, Sat., 27 Jul. 0.0383 0.0329 0.0350
05:01-06:00, Sat., 27 Jul. 0.0377 0.0322 0.0346
04:01-05:00, Sat., 27 Jul. 0.0367 0.0315 0.0346
03:01-04:00, Sat., 27 Jul. 0.0371 0.0327 0.0347
02:01-03:00, Sat., 27 Jul. 0.0372 0.0320 0.0348
01:01-02:00, Sat., 27 Jul. 0.0368 0.0325 0.0344
00:01-01:00, Sat., 27 Jul. 0.0377 0.0329 0.0350
23:01-24:00, Fri., 26 Jul. 0.0391 0.0330 0.0359
22:01-23:00, Fri., 26 Jul. 0.0415 0.0348 0.0382
21:01-22:00, Fri., 26 Jul. 0.0436 0.0336 0.0386
20:01-21:00, Fri., 26 Jul. 0.0372 0.0320 0.0350
19:01-20:00, Fri., 26 Jul. 0.0358 0.0322 0.0339
18:01-19:00, Fri., 26 Jul. 0.0363 0.0319 0.0340
17:01-18:00, Fri., 26 Jul. 0.0376 0.0311 0.0339
16:01-17:00, Fri., 26 Jul. 0.0363 0.0313 0.0339
15:01-16:00, Fri., 26 Jul. 0.0361 0.0317 0.0338
14:01-15:00, Fri., 26 Jul. 0.0370 0.0321 0.0343
13:01-14:00, Fri., 26 Jul. 0.0370 0.0322 0.0346
12:01-13:00, Fri., 26 Jul. 0.0367 0.0328 0.0344
11:01-12:00, Fri., 26 Jul. 0.0373 0.0318 0.0347
10:01-11:00, Fri., 26 Jul. 0.0384 0.0326 0.0346
09:01-10:00, Fri., 26 Jul. 0.0368 0.0326 0.0346
08:01-09:00, Fri., 26 Jul. 0.0387 0.0327 0.0353
07:01-08:00, Fri., 26 Jul. 0.0386 0.0339 0.0359
06:01-07:00, Fri., 26 Jul. 0.0379 0.0331 0.0357
05:01-06:00, Fri., 26 Jul. 0.0374 0.0322 0.0348
04:01-05:00, Fri., 26 Jul. 0.0372 0.0314 0.0350
03:01-04:00, Fri., 26 Jul. 0.0382 0.0336 0.0360
02:01-03:00, Fri., 26 Jul. 0.0376 0.0333 0.0356
01:01-02:00, Fri., 26 Jul. 0.0387 0.0333 0.0357
00:01-01:00, Fri., 26 Jul. 0.0389 0.0326 0.0352
23:01-24:00, Thu., 25 Jul. 0.0377 0.0328 0.0351
22:01-23:00, Thu., 25 Jul. 0.0372 0.0325 0.0349
21:01-22:00, Thu., 25 Jul. 0.0376 0.0336 0.0355
20:01-21:00, Thu., 25 Jul. 0.0390 0.0339 0.0368
19:01-20:00, Thu., 25 Jul. 0.0400 0.0337 0.0377
18:01-19:00, Thu., 25 Jul. 0.0416 0.0325 0.0382
17:01-18:00, Thu., 25 Jul. 0.0395 0.0320 0.0351
16:01-17:00, Thu., 25 Jul. 0.0379 0.0328 0.0355
15:01-16:00, Thu., 25 Jul. 0.0382 0.0326 0.0354
14:01-15:00, Thu., 25 Jul. 0.0376 0.0321 0.0344
13:01-14:00, Thu., 25 Jul. 0.0366 0.0325 0.0345
12:01-13:00, Thu., 25 Jul. 0.0366 0.0321 0.0344
11:01-12:00, Thu., 25 Jul. 0.0362 0.0317 0.0342
10:01-11:00, Thu., 25 Jul. 0.0369 0.0325 0.0348
09:01-10:00, Thu., 25 Jul. 0.0390 0.0328 0.0356
08:01-09:00, Thu., 25 Jul. 0.0386 0.0342 0.0362
07:01-08:00, Thu., 25 Jul. 0.0389 0.0339 0.0366
06:01-07:00, Thu., 25 Jul. 0.0393 0.0338 0.0368
05:01-06:00, Thu., 25 Jul. 0.0400 0.0346 0.0372
04:01-05:00, Thu., 25 Jul. 0.0396 0.0349 0.0369
03:01-04:00, Thu., 25 Jul. 0.0398 0.0349 0.0368
02:01-03:00, Thu., 25 Jul. 0.0386 0.0336 0.0367
01:01-02:00, Thu., 25 Jul. 0.0395 0.0336 0.0369
00:01-01:00, Thu., 25 Jul. 0.0395 0.0337 0.0365
23:01-24:00, Wed., 24 Jul. 0.0391 0.0331 0.0359
22:01-23:00, Wed., 24 Jul. 0.0378 0.0332 0.0353
21:01-22:00, Wed., 24 Jul. 0.0374 0.0325 0.0352
20:01-21:00, Wed., 24 Jul. 0.0374 0.0329 0.0349
19:01-20:00, Wed., 24 Jul. 0.0380 0.0321 0.0344
18:01-19:00, Wed., 24 Jul. 0.0367 0.0321 0.0339
17:01-18:00, Wed., 24 Jul. 0.0381 0.0304 0.0339
16:01-17:00, Wed., 24 Jul. 0.0363 0.0308 0.0342
15:01-16:00, Wed., 24 Jul. 0.0378 0.0315 0.0345
14:01-15:00, Wed., 24 Jul. 0.0384 0.0329 0.0359
13:01-14:00, Wed., 24 Jul. 0.0439 0.0348 0.0395
12:01-13:00, Wed., 24 Jul. 0.0471 0.0325 0.0406
11:01-12:00, Wed., 24 Jul. 0.0391 0.0309 0.0348
10:01-11:00, Wed., 24 Jul. 0.0372 0.0318 0.0347
09:01-10:00, Wed., 24 Jul. 0.0374 0.0327 0.0350
08:01-09:00, Wed., 24 Jul. 0.0381 0.0325 0.0352
07:01-08:00, Wed., 24 Jul. 0.0380 0.0332 0.0353
06:01-07:00, Wed., 24 Jul. 0.0376 0.0331 0.0356
05:01-06:00, Wed., 24 Jul. 0.0396 0.0329 0.0364
04:01-05:00, Wed., 24 Jul. 0.0391 0.0334 0.0369
03:01-04:00, Wed., 24 Jul. 0.0386 0.0323 0.0353
02:01-03:00, Wed., 24 Jul. 0.0381 0.0329 0.0355
01:01-02:00, Wed., 24 Jul. 0.0380 0.0327 0.0352
00:01-01:00, Wed., 24 Jul. 0.0369 0.0318 0.0347
23:01-24:00, Tue., 23 Jul. 0.0374 0.0333 0.0349
22:01-23:00, Tue., 23 Jul. 0.0384 0.0323 0.0349
21:01-22:00, Tue., 23 Jul. 0.0372 0.0322 0.0345
20:01-21:00, Tue., 23 Jul. 0.0375 0.0317 0.0343
19:01-20:00, Tue., 23 Jul. 0.0370 0.0329 0.0345
18:01-19:00, Tue., 23 Jul. 0.0382 0.0308 0.0347
17:01-18:00, Tue., 23 Jul. 0.0366 0.0317 0.0340
16:01-17:00, Tue., 23 Jul. 0.0365 0.0317 0.0340
15:01-16:00, Tue., 23 Jul. 0.0369 0.0321 0.0345
14:01-15:00, Tue., 23 Jul. 0.0370 0.0327 0.0346
13:01-14:00, Tue., 23 Jul. 0.0366 0.0325 0.0348
12:01-13:00, Tue., 23 Jul. 0.0376 0.0316 0.0343
11:01-12:00, Tue., 23 Jul. 0.0369 0.0320 0.0344
10:01-11:00, Tue., 23 Jul. 0.0377 0.0323 0.0344
09:01-10:00, Tue., 23 Jul. 0.0370 0.0325 0.0348
08:01-09:00, Tue., 23 Jul. 0.0384 0.0330 0.0350
07:01-08:00, Tue., 23 Jul. 0.0377 0.0325 0.0354
06:01-07:00, Tue., 23 Jul. 0.0377 0.0332 0.0358
05:01-06:00, Tue., 23 Jul. 0.0379 0.0340 0.0359
04:01-05:00, Tue., 23 Jul. 0.0377 0.0336 0.0356
03:01-04:00, Tue., 23 Jul. 0.0380 0.0330 0.0357
02:01-03:00, Tue., 23 Jul. 0.0370 0.0329 0.0349
01:01-02:00, Tue., 23 Jul. 0.0376 0.0325 0.0348
00:01-01:00, Tue., 23 Jul. 0.0382 0.0327 0.0355
23:01-24:00, Mon., 22 Jul. 0.0454 0.0347 0.0393
22:01-23:00, Mon., 22 Jul. 0.0658 0.0437 0.0531
21:01-22:00, Mon., 22 Jul. 0.0807 0.0635 0.0746
20:01-21:00, Mon., 22 Jul. 0.0610 0.0318 0.0385
19:01-20:00, Mon., 22 Jul. 0.0383 0.0325 0.0353
18:01-19:00, Mon., 22 Jul. 0.0372 0.0327 0.0350
17:01-18:00, Mon., 22 Jul. 0.0368 0.0325 0.0345
16:01-17:00, Mon., 22 Jul. 0.0371 0.0321 0.0346
15:01-16:00, Mon., 22 Jul. 0.0374 0.0318 0.0346
14:01-15:00, Mon., 22 Jul. 0.0385 0.0331 0.0350
13:01-14:00, Mon., 22 Jul. 0.0384 0.0325 0.0352
12:01-13:00, Mon., 22 Jul. 0.0373 0.0321 0.0347
11:01-12:00, Mon., 22 Jul. 0.0367 0.0325 0.0346
10:01-11:00, Mon., 22 Jul. 0.0367 0.0325 0.0349
09:01-10:00, Mon., 22 Jul. 0.0374 0.0325 0.0348
08:01-09:00, Mon., 22 Jul. 0.0370 0.0322 0.0346
07:01-08:00, Mon., 22 Jul. 0.0379 0.0330 0.0350
06:01-07:00, Mon., 22 Jul. 0.0375 0.0322 0.0350
05:01-06:00, Mon., 22 Jul. 0.0377 0.0315 0.0351
04:01-05:00, Mon., 22 Jul. 0.0370 0.0313 0.0344
03:01-04:00, Mon., 22 Jul. 0.0381 0.0315 0.0346
02:01-03:00, Mon., 22 Jul. 0.0375 0.0321 0.0346
01:01-02:00, Mon., 22 Jul. 0.0374 0.0325 0.0346
00:01-01:00, Mon., 22 Jul. 0.0376 0.0321 0.0345
23:01-24:00, Sun., 21 Jul. 0.0375 0.0320 0.0344
22:01-23:00, Sun., 21 Jul. 0.0372 0.0318 0.0347
21:01-22:00, Sun., 21 Jul. 0.0367 0.0325 0.0345
20:01-21:00, Sun., 21 Jul. 0.0359 0.0317 0.0341
19:01-20:00, Sun., 21 Jul. 0.0363 0.0316 0.0341
18:01-19:00, Sun., 21 Jul. 0.0369 0.0318 0.0341
17:01-18:00, Sun., 21 Jul. 0.0361 0.0325 0.0342
16:01-17:00, Sun., 21 Jul. 0.0366 0.0316 0.0341
15:01-16:00, Sun., 21 Jul. 0.0366 0.0315 0.0337
14:01-15:00, Sun., 21 Jul. 0.0361 0.0319 0.0340
13:01-14:00, Sun., 21 Jul. 0.0364 0.0321 0.0341
12:01-13:00, Sun., 21 Jul. 0.0362 0.0316 0.0343
11:01-12:00, Sun., 21 Jul. 0.0383 0.0322 0.0343
10:01-11:00, Sun., 21 Jul. 0.0360 0.0320 0.0340
09:01-10:00, Sun., 21 Jul. 0.0367 0.0311 0.0339
08:01-09:00, Sun., 21 Jul. 0.0375 0.0325 0.0343
07:01-08:00, Sun., 21 Jul. 0.0370 0.0329 0.0344
06:01-07:00, Sun., 21 Jul. 0.0373 0.0330 0.0352
05:01-06:00, Sun., 21 Jul. 0.0374 0.0325 0.0352
04:01-05:00, Sun., 21 Jul. 0.0395 0.0339 0.0362
03:01-04:00, Sun., 21 Jul. 0.0454 0.0362 0.0404
02:01-03:00, Sun., 21 Jul. 0.0464 0.0322 0.0391
01:01-02:00, Sun., 21 Jul. 0.0356 0.0318 0.0341
00:01-01:00, Sun., 21 Jul. 0.0383 0.0326 0.0355
23:01-24:00, Sat., 20 Jul. 0.0456 0.0349 0.0399
22:01-23:00, Sat., 20 Jul. 0.0499 0.0391 0.0452
21:01-22:00, Sat., 20 Jul. 0.0472 0.0351 0.0426
20:01-21:00, Sat., 20 Jul. 0.0404 0.0333 0.0366
19:01-20:00, Sat., 20 Jul. 0.0499 0.0373 0.0432
18:01-19:00, Sat., 20 Jul. 0.0569 0.0428 0.0511
17:01-18:00, Sat., 20 Jul. 0.0446 0.0329 0.0370
16:01-17:00, Sat., 20 Jul. 0.0373 0.0321 0.0348
15:01-16:00, Sat., 20 Jul. 0.0377 0.0324 0.0350
14:01-15:00, Sat., 20 Jul. 0.0371 0.0329 0.0349
13:01-14:00, Sat., 20 Jul. 0.0374 0.0326 0.0351
12:01-13:00, Sat., 20 Jul. 0.0377 0.0332 0.0354
11:01-12:00, Sat., 20 Jul. 0.0372 0.0320 0.0351
10:01-11:00, Sat., 20 Jul. 0.0376 0.0329 0.0352
09:01-10:00, Sat., 20 Jul. 0.0372 0.0329 0.0351
08:01-09:00, Sat., 20 Jul. 0.0382 0.0332 0.0354
07:01-08:00, Sat., 20 Jul. 0.0397 0.0345 0.0367
06:01-07:00, Sat., 20 Jul. 0.0399 0.0358 0.0380
05:01-06:00, Sat., 20 Jul. 0.0405 0.0340 0.0372
04:01-05:00, Sat., 20 Jul. 0.0376 0.0329 0.0354
03:01-04:00, Sat., 20 Jul. 0.0369 0.0324 0.0349
02:01-03:00, Sat., 20 Jul. 0.0374 0.0333 0.0351
01:01-02:00, Sat., 20 Jul. 0.0390 0.0333 0.0359
00:01-01:00, Sat., 20 Jul. 0.0407 0.0329 0.0367
23:01-24:00, Fri., 19 Jul. 0.0389 0.0332 0.0355
22:01-23:00, Fri., 19 Jul. 0.0384 0.0343 0.0360
21:01-22:00, Fri., 19 Jul. 0.0380 0.0325 0.0354
20:01-21:00, Fri., 19 Jul. 0.0381 0.0312 0.0344
19:01-20:00, Fri., 19 Jul. 0.0370 0.0311 0.0339
18:01-19:00, Fri., 19 Jul. 0.0361 0.0314 0.0340
17:01-18:00, Fri., 19 Jul. 0.0351 0.0305 0.0335
16:01-17:00, Fri., 19 Jul. 0.0359 0.0309 0.0338
15:01-16:00, Fri., 19 Jul. 0.0364 0.0309 0.0336
14:01-15:00, Fri., 19 Jul. 0.0368 0.0314 0.0341
13:01-14:00, Fri., 19 Jul. 0.0370 0.0318 0.0341
12:01-13:00, Fri., 19 Jul. 0.0354 0.0315 0.0337
11:01-12:00, Fri., 19 Jul. 0.0356 0.0315 0.0336
10:01-11:00, Fri., 19 Jul. 0.0363 0.0317 0.0339
09:01-10:00, Fri., 19 Jul. 0.0362 0.0318 0.0342
08:01-09:00, Fri., 19 Jul. 0.0376 0.0322 0.0348
07:01-08:00, Fri., 19 Jul. 0.0391 0.0327 0.0356
06:01-07:00, Fri., 19 Jul. 0.0377 0.0334 0.0355
05:01-06:00, Fri., 19 Jul. 0.0376 0.0329 0.0355
04:01-05:00, Fri., 19 Jul. 0.0384 0.0332 0.0354
03:01-04:00, Fri., 19 Jul. 0.0398 0.0342 0.0365
02:01-03:00, Fri., 19 Jul. 0.0384 0.0337 0.0363
01:01-02:00, Fri., 19 Jul. 0.0376 0.0318 0.0350
00:01-01:00, Fri., 19 Jul. 0.0362 0.0318 0.0340
23:01-24:00, Thu., 18 Jul. 0.0369 0.0318 0.0346
22:01-23:00, Thu., 18 Jul. 0.0361 0.0323 0.0344
21:01-22:00, Thu., 18 Jul. 0.0372 0.0324 0.0343
20:01-21:00, Thu., 18 Jul. 0.0365 0.0324 0.0341
19:01-20:00, Thu., 18 Jul. 0.0365 0.0322 0.0342
18:01-19:00, Thu., 18 Jul. 0.0360 0.0322 0.0343
17:01-18:00, Thu., 18 Jul. 0.0362 0.0317 0.0341
16:01-17:00, Thu., 18 Jul. 0.0367 0.0317 0.0344
15:01-16:00, Thu., 18 Jul. 0.0362 0.0311 0.0340
14:01-15:00, Thu., 18 Jul. 0.0370 0.0317 0.0340
13:01-14:00, Thu., 18 Jul. 0.0367 0.0303 0.0340
12:01-13:00, Thu., 18 Jul. 0.0371 0.0313 0.0341
11:01-12:00, Thu., 18 Jul. 0.0361 0.0308 0.0340
10:01-11:00, Thu., 18 Jul. 0.0386 0.0317 0.0343
09:01-10:00, Thu., 18 Jul. 0.0367 0.0315 0.0342
08:01-09:00, Thu., 18 Jul. 0.0376 0.0322 0.0349
07:01-08:00, Thu., 18 Jul. 0.0374 0.0321 0.0346
06:01-07:00, Thu., 18 Jul. 0.0370 0.0322 0.0344
05:01-06:00, Thu., 18 Jul. 0.0361 0.0312 0.0341
04:01-05:00, Thu., 18 Jul. 0.0371 0.0320 0.0341
03:01-04:00, Thu., 18 Jul. 0.0362 0.0310 0.0342
02:01-03:00, Thu., 18 Jul. 0.0372 0.0314 0.0341
01:01-02:00, Thu., 18 Jul. 0.0357 0.0314 0.0339
00:01-01:00, Thu., 18 Jul. 0.0352 0.0315 0.0336
23:01-24:00, Wed., 17 Jul. 0.0359 0.0301 0.0338
22:01-23:00, Wed., 17 Jul. 0.0357 0.0312 0.0336
21:01-22:00, Wed., 17 Jul. 0.0363 0.0321 0.0338
20:01-21:00, Wed., 17 Jul. 0.0369 0.0313 0.0338
19:01-20:00, Wed., 17 Jul. 0.0369 0.0308 0.0342
18:01-19:00, Wed., 17 Jul. 0.0372 0.0314 0.0341
17:01-18:00, Wed., 17 Jul. 0.0371 0.0318 0.0345
16:01-17:00, Wed., 17 Jul. 0.0383 0.0332 0.0356
15:01-16:00, Wed., 17 Jul. 0.0405 0.0330 0.0366
14:01-15:00, Wed., 17 Jul. 0.0356 0.0325 0.0340
13:01-14:00, Wed., 17 Jul. 0.0365 0.0320 0.0340