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
15:01-16:00, Sat., 17 Oct. 0.0366 0.0318 0.0344
14:01-15:00, Sat., 17 Oct. 0.0363 0.0323 0.0345
13:01-14:00, Sat., 17 Oct. 0.0370 0.0319 0.0346
12:01-13:00, Sat., 17 Oct. 0.0372 0.0323 0.0347
11:01-12:00, Sat., 17 Oct. 0.0374 0.0325 0.0347
10:01-11:00, Sat., 17 Oct. 0.0377 0.0328 0.0347
09:01-10:00, Sat., 17 Oct. 0.0377 0.0327 0.0346
08:01-09:00, Sat., 17 Oct. 0.0371 0.0323 0.0346
07:01-08:00, Sat., 17 Oct. 0.0378 0.0315 0.0341
06:01-07:00, Sat., 17 Oct. 0.0360 0.0319 0.0340
05:01-06:00, Sat., 17 Oct. 0.0370 0.0311 0.0340
04:01-05:00, Sat., 17 Oct. 0.0376 0.0318 0.0342
03:01-04:00, Sat., 17 Oct. 0.0370 0.0318 0.0341
02:01-03:00, Sat., 17 Oct. 0.0364 0.0318 0.0341
01:01-02:00, Sat., 17 Oct. 0.0364 0.0318 0.0340
00:01-01:00, Sat., 17 Oct. 0.0366 0.0311 0.0339
23:01-24:00, Fri., 16 Oct. 0.0363 0.0320 0.0340
22:01-23:00, Fri., 16 Oct. 0.0371 0.0325 0.0344
21:01-22:00, Fri., 16 Oct. 0.0373 0.0316 0.0346
20:01-21:00, Fri., 16 Oct. 0.0370 0.0329 0.0350
19:01-20:00, Fri., 16 Oct. 0.0375 0.0318 0.0344
18:01-19:00, Fri., 16 Oct. 0.0365 0.0315 0.0341
17:01-18:00, Fri., 16 Oct. 0.0368 0.0322 0.0343
16:01-17:00, Fri., 16 Oct. 0.0379 0.0304 0.0344
15:01-16:00, Fri., 16 Oct. 0.0373 0.0325 0.0346
14:01-15:00, Fri., 16 Oct. 0.0370 0.0315 0.0345
13:01-14:00, Fri., 16 Oct. 0.0372 0.0322 0.0342
12:01-13:00, Fri., 16 Oct. 0.0365 0.0322 0.0347
11:01-12:00, Fri., 16 Oct. 0.0367 0.0327 0.0350
10:01-11:00, Fri., 16 Oct. 0.0374 0.0327 0.0351
09:01-10:00, Fri., 16 Oct. 0.0377 0.0325 0.0350
08:01-09:00, Fri., 16 Oct. 0.0363 0.0324 0.0346
07:01-08:00, Fri., 16 Oct. 0.0377 0.0318 0.0348
06:01-07:00, Fri., 16 Oct. 0.0369 0.0322 0.0346
05:01-06:00, Fri., 16 Oct. 0.0369 0.0313 0.0344
04:01-05:00, Fri., 16 Oct. 0.0381 0.0325 0.0345
03:01-04:00, Fri., 16 Oct. 0.0370 0.0317 0.0341
02:01-03:00, Fri., 16 Oct. 0.0359 0.0313 0.0341
01:01-02:00, Fri., 16 Oct. 0.0363 0.0319 0.0342
00:01-01:00, Fri., 16 Oct. 0.0367 0.0314 0.0341
23:01-24:00, Thu., 15 Oct. 0.0361 0.0321 0.0338
22:01-23:00, Thu., 15 Oct. 0.0360 0.0315 0.0336
21:01-22:00, Thu., 15 Oct. 0.0353 0.0311 0.0337
20:01-21:00, Thu., 15 Oct. 0.0359 0.0313 0.0335
19:01-20:00, Thu., 15 Oct. 0.0355 0.0312 0.0333
18:01-19:00, Thu., 15 Oct. 0.0356 0.0318 0.0340
17:01-18:00, Thu., 15 Oct. 0.0370 0.0315 0.0340
16:01-17:00, Thu., 15 Oct. 0.0371 0.0321 0.0339
15:01-16:00, Thu., 15 Oct. 0.0361 0.0317 0.0342
14:01-15:00, Thu., 15 Oct. 0.0381 0.0324 0.0346
13:01-14:00, Thu., 15 Oct. 0.0374 0.0318 0.0347
12:01-13:00, Thu., 15 Oct. 0.0380 0.0317 0.0348
11:01-12:00, Thu., 15 Oct. 0.0365 0.0320 0.0343
10:01-11:00, Thu., 15 Oct. 0.0371 0.0321 0.0344
09:01-10:00, Thu., 15 Oct. 0.0366 0.0317 0.0343
08:01-09:00, Thu., 15 Oct. 0.0360 0.0311 0.0342
07:01-08:00, Thu., 15 Oct. 0.0370 0.0315 0.0340
06:01-07:00, Thu., 15 Oct. 0.0362 0.0326 0.0343
05:01-06:00, Thu., 15 Oct. 0.0367 0.0320 0.0342
04:01-05:00, Thu., 15 Oct. 0.0367 0.0319 0.0342
03:01-04:00, Thu., 15 Oct. 0.0363 0.0315 0.0342
02:01-03:00, Thu., 15 Oct. 0.0368 0.0317 0.0341
01:01-02:00, Thu., 15 Oct. 0.0362 0.0315 0.0340
00:01-01:00, Thu., 15 Oct. 0.0358 0.0321 0.0342
23:01-24:00, Wed., 14 Oct. 0.0370 0.0321 0.0343
22:01-23:00, Wed., 14 Oct. 0.0367 0.0322 0.0343
21:01-22:00, Wed., 14 Oct. 0.0371 0.0322 0.0344
20:01-21:00, Wed., 14 Oct. 0.0368 0.0315 0.0342
19:01-20:00, Wed., 14 Oct. 0.0365 0.0329 0.0346
18:01-19:00, Wed., 14 Oct. 0.0369 0.0318 0.0345
17:01-18:00, Wed., 14 Oct. 0.0377 0.0317 0.0347
16:01-17:00, Wed., 14 Oct. 0.0367 0.0320 0.0348
15:01-16:00, Wed., 14 Oct. 0.0368 0.0315 0.0348
14:01-15:00, Wed., 14 Oct. 0.0363 0.0317 0.0346
13:01-14:00, Wed., 14 Oct. 0.0376 0.0312 0.0342
12:01-13:00, Wed., 14 Oct. 0.0373 0.0324 0.0346
11:01-12:00, Wed., 14 Oct. 0.0373 0.0315 0.0350
10:01-11:00, Wed., 14 Oct. 0.0371 0.0316 0.0346
09:01-10:00, Wed., 14 Oct. 0.0370 0.0328 0.0344
08:01-09:00, Wed., 14 Oct. 0.0372 0.0325 0.0348
07:01-08:00, Wed., 14 Oct. 0.0378 0.0332 0.0351
06:01-07:00, Wed., 14 Oct. 0.0382 0.0325 0.0353
05:01-06:00, Wed., 14 Oct. 0.0385 0.0332 0.0351
04:01-05:00, Wed., 14 Oct. 0.0395 0.0329 0.0354
03:01-04:00, Wed., 14 Oct. 0.0375 0.0329 0.0354
02:01-03:00, Wed., 14 Oct. 0.0375 0.0329 0.0349
01:01-02:00, Wed., 14 Oct. 0.0386 0.0329 0.0349
00:01-01:00, Wed., 14 Oct. 0.0369 0.0320 0.0347
23:01-24:00, Tue., 13 Oct. 0.0380 0.0322 0.0347
22:01-23:00, Tue., 13 Oct. 0.0361 0.0313 0.0341
21:01-22:00, Tue., 13 Oct. 0.0362 0.0318 0.0339
20:01-21:00, Tue., 13 Oct. 0.0360 0.0309 0.0336
19:01-20:00, Tue., 13 Oct. 0.0360 0.0304 0.0334
18:01-19:00, Tue., 13 Oct. 0.0364 0.0302 0.0336
17:01-18:00, Tue., 13 Oct. 0.0365 0.0308 0.0335
16:01-17:00, Tue., 13 Oct. 0.0357 0.0315 0.0337
15:01-16:00, Tue., 13 Oct. 0.0366 0.0318 0.0340
14:01-15:00, Tue., 13 Oct. 0.0367 0.0322 0.0341
13:01-14:00, Tue., 13 Oct. 0.0368 0.0321 0.0343
12:01-13:00, Tue., 13 Oct. 0.0369 0.0318 0.0345
11:01-12:00, Tue., 13 Oct. 0.0366 0.0321 0.0344
10:01-11:00, Tue., 13 Oct. 0.0377 0.0329 0.0346
09:01-10:00, Tue., 13 Oct. 0.0369 0.0318 0.0343
08:01-09:00, Tue., 13 Oct. 0.0362 0.0318 0.0342
07:01-08:00, Tue., 13 Oct. 0.0367 0.0330 0.0349
06:01-07:00, Tue., 13 Oct. 0.0384 0.0326 0.0349
05:01-06:00, Tue., 13 Oct. 0.0377 0.0325 0.0345
04:01-05:00, Tue., 13 Oct. 0.0363 0.0322 0.0343
03:01-04:00, Tue., 13 Oct. 0.0370 0.0318 0.0340
02:01-03:00, Tue., 13 Oct. 0.0364 0.0313 0.0337
01:01-02:00, Tue., 13 Oct. 0.0366 0.0315 0.0336
00:01-01:00, Tue., 13 Oct. 0.0363 0.0319 0.0340
23:01-24:00, Mon., 12 Oct. 0.0363 0.0315 0.0337
22:01-23:00, Mon., 12 Oct. 0.0356 0.0311 0.0334
21:01-22:00, Mon., 12 Oct. 0.0353 0.0313 0.0333
20:01-21:00, Mon., 12 Oct. 0.0344 0.0308 0.0329
19:01-20:00, Mon., 12 Oct. 0.0356 0.0311 0.0336
18:01-19:00, Mon., 12 Oct. 0.0366 0.0309 0.0336
17:01-18:00, Mon., 12 Oct. 0.0383 0.0312 0.0342
16:01-17:00, Mon., 12 Oct. 0.0366 0.0322 0.0344
15:01-16:00, Mon., 12 Oct. 0.0363 0.0315 0.0344
14:01-15:00, Mon., 12 Oct. 0.0367 0.0315 0.0347
13:01-14:00, Mon., 12 Oct. 0.0372 0.0330 0.0347
12:01-13:00, Mon., 12 Oct. 0.0370 0.0325 0.0348
11:01-12:00, Mon., 12 Oct. 0.0376 0.0329 0.0351
10:01-11:00, Mon., 12 Oct. 0.0377 0.0319 0.0346
09:01-10:00, Mon., 12 Oct. 0.0378 0.0323 0.0352
08:01-09:00, Mon., 12 Oct. 0.0393 0.0318 0.0348
07:01-08:00, Mon., 12 Oct. 0.0364 0.0317 0.0345
06:01-07:00, Mon., 12 Oct. 0.0370 0.0324 0.0349
05:01-06:00, Mon., 12 Oct. 0.0372 0.0325 0.0347
04:01-05:00, Mon., 12 Oct. 0.0365 0.0324 0.0344
03:01-04:00, Mon., 12 Oct. 0.0362 0.0314 0.0343
02:01-03:00, Mon., 12 Oct. 0.0371 0.0325 0.0345
01:01-02:00, Mon., 12 Oct. 0.0377 0.0328 0.0350
00:01-01:00, Mon., 12 Oct. 0.0377 0.0331 0.0350
23:01-24:00, Sun., 11 Oct. 0.0374 0.0318 0.0339
22:01-23:00, Sun., 11 Oct. 0.0353 0.0320 0.0338
21:01-22:00, Sun., 11 Oct. 0.0370 0.0314 0.0341
20:01-21:00, Sun., 11 Oct. 0.0353 0.0312 0.0336
19:01-20:00, Sun., 11 Oct. 0.0361 0.0313 0.0338
18:01-19:00, Sun., 11 Oct. 0.0367 0.0313 0.0341
17:01-18:00, Sun., 11 Oct. 0.0360 0.0308 0.0339
16:01-17:00, Sun., 11 Oct. 0.0375 0.0307 0.0345
15:01-16:00, Sun., 11 Oct. 0.0363 0.0319 0.0346
14:01-15:00, Sun., 11 Oct. 0.0374 0.0318 0.0345
13:01-14:00, Sun., 11 Oct. 0.0367 0.0315 0.0344
12:01-13:00, Sun., 11 Oct. 0.0381 0.0324 0.0348
11:01-12:00, Sun., 11 Oct. 0.0366 0.0325 0.0345
10:01-11:00, Sun., 11 Oct. 0.0382 0.0321 0.0350
09:01-10:00, Sun., 11 Oct. 0.0375 0.0315 0.0348
08:01-09:00, Sun., 11 Oct. 0.0386 0.0322 0.0348
07:01-08:00, Sun., 11 Oct. 0.0372 0.0325 0.0351
06:01-07:00, Sun., 11 Oct. 0.0379 0.0324 0.0351
05:01-06:00, Sun., 11 Oct. 0.0374 0.0331 0.0350
04:01-05:00, Sun., 11 Oct. 0.0362 0.0325 0.0345
03:01-04:00, Sun., 11 Oct. 0.0376 0.0316 0.0347
02:01-03:00, Sun., 11 Oct. 0.0370 0.0317 0.0343
01:01-02:00, Sun., 11 Oct. 0.0372 0.0311 0.0344
00:01-01:00, Sun., 11 Oct. 0.0374 0.0313 0.0340
23:01-24:00, Sat., 10 Oct. 0.0370 0.0327 0.0342
22:01-23:00, Sat., 10 Oct. 0.0366 0.0321 0.0338
21:01-22:00, Sat., 10 Oct. 0.0362 0.0311 0.0339
20:01-21:00, Sat., 10 Oct. 0.0365 0.0315 0.0337
19:01-20:00, Sat., 10 Oct. 0.0360 0.0307 0.0337
18:01-19:00, Sat., 10 Oct. 0.0364 0.0318 0.0338
17:01-18:00, Sat., 10 Oct. 0.0355 0.0305 0.0336
16:01-17:00, Sat., 10 Oct. 0.0361 0.0317 0.0340
15:01-16:00, Sat., 10 Oct. 0.0367 0.0312 0.0342
14:01-15:00, Sat., 10 Oct. 0.0364 0.0317 0.0344
13:01-14:00, Sat., 10 Oct. 0.0367 0.0314 0.0344
12:01-13:00, Sat., 10 Oct. 0.0363 0.0324 0.0342
11:01-12:00, Sat., 10 Oct. 0.0362 0.0322 0.0343
10:01-11:00, Sat., 10 Oct. 0.0365 0.0322 0.0342
09:01-10:00, Sat., 10 Oct. 0.0365 0.0322 0.0341
08:01-09:00, Sat., 10 Oct. 0.0370 0.0324 0.0347
07:01-08:00, Sat., 10 Oct. 0.0381 0.0325 0.0345
06:01-07:00, Sat., 10 Oct. 0.0373 0.0325 0.0350
05:01-06:00, Sat., 10 Oct. 0.0367 0.0326 0.0346
04:01-05:00, Sat., 10 Oct. 0.0374 0.0315 0.0341
03:01-04:00, Sat., 10 Oct. 0.0361 0.0314 0.0338
02:01-03:00, Sat., 10 Oct. 0.0362 0.0319 0.0338
01:01-02:00, Sat., 10 Oct. 0.0369 0.0303 0.0340
00:01-01:00, Sat., 10 Oct. 0.0362 0.0318 0.0340
23:01-24:00, Fri., 09 Oct. 0.0379 0.0321 0.0341
22:01-23:00, Fri., 09 Oct. 0.0365 0.0318 0.0339
21:01-22:00, Fri., 09 Oct. 0.0359 0.0315 0.0336
20:01-21:00, Fri., 09 Oct. 0.0363 0.0310 0.0333
19:01-20:00, Fri., 09 Oct. 0.0360 0.0315 0.0335
18:01-19:00, Fri., 09 Oct. 0.0360 0.0317 0.0340
17:01-18:00, Fri., 09 Oct. 0.0358 0.0318 0.0339
16:01-17:00, Fri., 09 Oct. 0.0364 0.0322 0.0342
15:01-16:00, Fri., 09 Oct. 0.0363 0.0318 0.0341
14:01-15:00, Fri., 09 Oct. 0.0367 0.0309 0.0342
13:01-14:00, Fri., 09 Oct. 0.0363 0.0322 0.0341
12:01-13:00, Fri., 09 Oct. 0.0374 0.0315 0.0344
11:01-12:00, Fri., 09 Oct. 0.0363 0.0319 0.0345
10:01-11:00, Fri., 09 Oct. 0.0370 0.0326 0.0345
09:01-10:00, Fri., 09 Oct. 0.0363 0.0312 0.0345
08:01-09:00, Fri., 09 Oct. 0.0374 0.0324 0.0349
07:01-08:00, Fri., 09 Oct. 0.0374 0.0328 0.0349
06:01-07:00, Fri., 09 Oct. 0.0371 0.0325 0.0346
05:01-06:00, Fri., 09 Oct. 0.0362 0.0318 0.0341
04:01-05:00, Fri., 09 Oct. 0.0367 0.0318 0.0341
03:01-04:00, Fri., 09 Oct. 0.0377 0.0322 0.0341
02:01-03:00, Fri., 09 Oct. 0.0362 0.0309 0.0340
01:01-02:00, Fri., 09 Oct. 0.0359 0.0319 0.0340
00:01-01:00, Fri., 09 Oct. 0.0370 0.0315 0.0339
23:01-24:00, Thu., 08 Oct. 0.0363 0.0318 0.0340
22:01-23:00, Thu., 08 Oct. 0.0357 0.0314 0.0335
21:01-22:00, Thu., 08 Oct. 0.0355 0.0309 0.0332
20:01-21:00, Thu., 08 Oct. 0.0355 0.0314 0.0332
19:01-20:00, Thu., 08 Oct. 0.0359 0.0308 0.0334
18:01-19:00, Thu., 08 Oct. 0.0357 0.0306 0.0337
17:01-18:00, Thu., 08 Oct. 0.0362 0.0312 0.0334
16:01-17:00, Thu., 08 Oct. 0.0356 0.0319 0.0339
15:01-16:00, Thu., 08 Oct. 0.0374 0.0319 0.0341
14:01-15:00, Thu., 08 Oct. 0.0373 0.0316 0.0339
13:01-14:00, Thu., 08 Oct. 0.0362 0.0310 0.0339
12:01-13:00, Thu., 08 Oct. 0.0369 0.0318 0.0342
11:01-12:00, Thu., 08 Oct. 0.0361 0.0320 0.0341
10:01-11:00, Thu., 08 Oct. 0.0359 0.0313 0.0340
09:01-10:00, Thu., 08 Oct. 0.0365 0.0318 0.0340
08:01-09:00, Thu., 08 Oct. 0.0370 0.0325 0.0342
07:01-08:00, Thu., 08 Oct. 0.0368 0.0314 0.0344
06:01-07:00, Thu., 08 Oct. 0.0360 0.0314 0.0339
05:01-06:00, Thu., 08 Oct. 0.0366 0.0322 0.0343
04:01-05:00, Thu., 08 Oct. 0.0362 0.0316 0.0339
03:01-04:00, Thu., 08 Oct. 0.0360 0.0316 0.0338
02:01-03:00, Thu., 08 Oct. 0.0363 0.0304 0.0337
01:01-02:00, Thu., 08 Oct. 0.0357 0.0316 0.0335
00:01-01:00, Thu., 08 Oct. 0.0354 0.0309 0.0335
23:01-24:00, Wed., 07 Oct. 0.0364 0.0314 0.0336
22:01-23:00, Wed., 07 Oct. 0.0357 0.0310 0.0336
21:01-22:00, Wed., 07 Oct. 0.0361 0.0312 0.0333
20:01-21:00, Wed., 07 Oct. 0.0356 0.0314 0.0334
19:01-20:00, Wed., 07 Oct. 0.0360 0.0314 0.0337
18:01-19:00, Wed., 07 Oct. 0.0356 0.0308 0.0333
17:01-18:00, Wed., 07 Oct. 0.0362 0.0318 0.0340
16:01-17:00, Wed., 07 Oct. 0.0366 0.0318 0.0335