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
17:01-18:00, Sat., 13 Dec. 0.0352 0.0303 0.0328
16:01-17:00, Sat., 13 Dec. 0.0349 0.0306 0.0329
15:01-16:00, Sat., 13 Dec. 0.0346 0.0302 0.0326
14:01-15:00, Sat., 13 Dec. 0.0353 0.0297 0.0331
13:01-14:00, Sat., 13 Dec. 0.0349 0.0309 0.0331
12:01-13:00, Sat., 13 Dec. 0.0349 0.0296 0.0330
11:01-12:00, Sat., 13 Dec. 0.0348 0.0301 0.0330
10:01-11:00, Sat., 13 Dec. 0.0348 0.0301 0.0331
09:01-10:00, Sat., 13 Dec. 0.0351 0.0309 0.0331
08:01-09:00, Sat., 13 Dec. 0.0352 0.0302 0.0330
07:01-08:00, Sat., 13 Dec. 0.0348 0.0310 0.0330
06:01-07:00, Sat., 13 Dec. 0.0361 0.0294 0.0331
05:01-06:00, Sat., 13 Dec. 0.0348 0.0306 0.0331
04:01-05:00, Sat., 13 Dec. 0.0347 0.0303 0.0327
03:01-04:00, Sat., 13 Dec. 0.0347 0.0305 0.0329
02:01-03:00, Sat., 13 Dec. 0.0356 0.0310 0.0327
01:01-02:00, Sat., 13 Dec. 0.0353 0.0310 0.0332
00:01-01:00, Sat., 13 Dec. 0.0356 0.0304 0.0330
23:01-24:00, Fri., 12 Dec. 0.0349 0.0308 0.0331
22:01-23:00, Fri., 12 Dec. 0.0348 0.0309 0.0329
21:01-22:00, Fri., 12 Dec. 0.0359 0.0311 0.0330
20:01-21:00, Fri., 12 Dec. 0.0354 0.0312 0.0329
19:01-20:00, Fri., 12 Dec. 0.0346 0.0311 0.0327
18:01-19:00, Fri., 12 Dec. 0.0358 0.0308 0.0329
17:01-18:00, Fri., 12 Dec. 0.0351 0.0304 0.0328
16:01-17:00, Fri., 12 Dec. 0.0356 0.0301 0.0327
15:01-16:00, Fri., 12 Dec. 0.0352 0.0303 0.0327
14:01-15:00, Fri., 12 Dec. 0.0356 0.0301 0.0329
13:01-14:00, Fri., 12 Dec. 0.0349 0.0308 0.0327
12:01-13:00, Fri., 12 Dec. 0.0360 0.0308 0.0332
11:01-12:00, Fri., 12 Dec. 0.0349 0.0312 0.0329
10:01-11:00, Fri., 12 Dec. 0.0363 0.0308 0.0333
09:01-10:00, Fri., 12 Dec. 0.0363 0.0313 0.0336
08:01-09:00, Fri., 12 Dec. 0.0360 0.0315 0.0339
07:01-08:00, Fri., 12 Dec. 0.0363 0.0312 0.0339
06:01-07:00, Fri., 12 Dec. 0.0364 0.0318 0.0340
05:01-06:00, Fri., 12 Dec. 0.0360 0.0324 0.0341
04:01-05:00, Fri., 12 Dec. 0.0360 0.0323 0.0341
03:01-04:00, Fri., 12 Dec. 0.0370 0.0318 0.0343
02:01-03:00, Fri., 12 Dec. 0.0363 0.0317 0.0343
01:01-02:00, Fri., 12 Dec. 0.0359 0.0321 0.0342
00:01-01:00, Fri., 12 Dec. 0.0363 0.0316 0.0342
23:01-24:00, Thu., 11 Dec. 0.0370 0.0318 0.0342
22:01-23:00, Thu., 11 Dec. 0.0364 0.0315 0.0343
21:01-22:00, Thu., 11 Dec. 0.0355 0.0312 0.0332
20:01-21:00, Thu., 11 Dec. 0.0353 0.0304 0.0334
19:01-20:00, Thu., 11 Dec. 0.0351 0.0297 0.0333
18:01-19:00, Thu., 11 Dec. 0.0356 0.0311 0.0333
17:01-18:00, Thu., 11 Dec. 0.0363 0.0315 0.0336
16:01-17:00, Thu., 11 Dec. 0.0364 0.0315 0.0336
15:01-16:00, Thu., 11 Dec. 0.0367 0.0318 0.0336
14:01-15:00, Thu., 11 Dec. 0.0356 0.0315 0.0337
13:01-14:00, Thu., 11 Dec. 0.0372 0.0318 0.0342
12:01-13:00, Thu., 11 Dec. 0.0381 0.0325 0.0348
11:01-12:00, Thu., 11 Dec. 0.0370 0.0322 0.0348
10:01-11:00, Thu., 11 Dec. 0.0381 0.0318 0.0348
09:01-10:00, Thu., 11 Dec. 0.0378 0.0332 0.0356
08:01-09:00, Thu., 11 Dec. 0.0377 0.0339 0.0357
07:01-08:00, Thu., 11 Dec. 0.0387 0.0329 0.0360
06:01-07:00, Thu., 11 Dec. 0.0382 0.0335 0.0357
05:01-06:00, Thu., 11 Dec. 0.0376 0.0322 0.0345
04:01-05:00, Thu., 11 Dec. 0.0377 0.0317 0.0347
03:01-04:00, Thu., 11 Dec. 0.0388 0.0330 0.0355
02:01-03:00, Thu., 11 Dec. 0.0377 0.0334 0.0355
01:01-02:00, Thu., 11 Dec. 0.0377 0.0313 0.0352
00:01-01:00, Thu., 11 Dec. 0.0383 0.0331 0.0352
23:01-24:00, Wed., 10 Dec. 0.0377 0.0321 0.0348
22:01-23:00, Wed., 10 Dec. 0.0362 0.0318 0.0342
21:01-22:00, Wed., 10 Dec. 0.0370 0.0311 0.0338
20:01-21:00, Wed., 10 Dec. 0.0360 0.0308 0.0339
19:01-20:00, Wed., 10 Dec. 0.0362 0.0310 0.0338
18:01-19:00, Wed., 10 Dec. 0.0360 0.0317 0.0336
17:01-18:00, Wed., 10 Dec. 0.0356 0.0302 0.0332
16:01-17:00, Wed., 10 Dec. 0.0357 0.0308 0.0331
15:01-16:00, Wed., 10 Dec. 0.0366 0.0312 0.0334
14:01-15:00, Wed., 10 Dec. 0.0367 0.0317 0.0337
13:01-14:00, Wed., 10 Dec. 0.116 0.0315 0.0377
12:01-13:00, Wed., 10 Dec. 0.0371 0.0324 0.0345
11:01-12:00, Wed., 10 Dec. 0.0370 0.0325 0.0345
10:01-11:00, Wed., 10 Dec. 0.0374 0.0329 0.0351
09:01-10:00, Wed., 10 Dec. 0.0382 0.0329 0.0355
08:01-09:00, Wed., 10 Dec. 0.0384 0.0336 0.0364
07:01-08:00, Wed., 10 Dec. 0.0392 0.0332 0.0363
06:01-07:00, Wed., 10 Dec. 0.0381 0.0348 0.0364
05:01-06:00, Wed., 10 Dec. 0.0395 0.0334 0.0360
04:01-05:00, Wed., 10 Dec. 0.0381 0.0329 0.0358
03:01-04:00, Wed., 10 Dec. 0.0370 0.0332 0.0351
02:01-03:00, Wed., 10 Dec. 0.0381 0.0332 0.0354
01:01-02:00, Wed., 10 Dec. 0.0368 0.0326 0.0348
00:01-01:00, Wed., 10 Dec. 0.0370 0.0323 0.0343
23:01-24:00, Tue., 09 Dec. 0.0361 0.0312 0.0335
22:01-23:00, Tue., 09 Dec. 0.0356 0.0307 0.0331
21:01-22:00, Tue., 09 Dec. 0.0368 0.0310 0.0332
20:01-21:00, Tue., 09 Dec. 0.0355 0.0318 0.0334
19:01-20:00, Tue., 09 Dec. 0.0348 0.0311 0.0330
18:01-19:00, Tue., 09 Dec. 0.0355 0.0306 0.0331
17:01-18:00, Tue., 09 Dec. 0.0356 0.0312 0.0333
16:01-17:00, Tue., 09 Dec. 0.0360 0.0317 0.0335
15:01-16:00, Tue., 09 Dec. 0.0367 0.0311 0.0337
14:01-15:00, Tue., 09 Dec. 0.0361 0.0311 0.0333
13:01-14:00, Tue., 09 Dec. 0.0359 0.0320 0.0338
12:01-13:00, Tue., 09 Dec. 0.0367 0.0311 0.0340
11:01-12:00, Tue., 09 Dec. 0.0367 0.0318 0.0340
10:01-11:00, Tue., 09 Dec. 0.0363 0.0325 0.0341
09:01-10:00, Tue., 09 Dec. 0.0367 0.0323 0.0343
08:01-09:00, Tue., 09 Dec. 0.0378 0.0321 0.0343
07:01-08:00, Tue., 09 Dec. 0.0369 0.0318 0.0342
06:01-07:00, Tue., 09 Dec. 0.0373 0.0316 0.0339
05:01-06:00, Tue., 09 Dec. 0.0368 0.0325 0.0344
04:01-05:00, Tue., 09 Dec. 0.0369 0.0322 0.0344
03:01-04:00, Tue., 09 Dec. 0.0362 0.0312 0.0341
02:01-03:00, Tue., 09 Dec. 0.0367 0.0323 0.0344
01:01-02:00, Tue., 09 Dec. 0.0363 0.0314 0.0341
00:01-01:00, Tue., 09 Dec. 0.0362 0.0314 0.0342
23:01-24:00, Mon., 08 Dec. 0.0362 0.0320 0.0342
22:01-23:00, Mon., 08 Dec. 0.0361 0.0318 0.0338
21:01-22:00, Mon., 08 Dec. 0.0360 0.0315 0.0338
20:01-21:00, Mon., 08 Dec. 0.0364 0.0320 0.0340
19:01-20:00, Mon., 08 Dec. 0.0365 0.0318 0.0339
18:01-19:00, Mon., 08 Dec. 0.0363 0.0315 0.0338
17:01-18:00, Mon., 08 Dec. 0.0360 0.0305 0.0336
16:01-17:00, Mon., 08 Dec. 0.0356 0.0315 0.0335
15:01-16:00, Mon., 08 Dec. 0.0359 0.0312 0.0335
14:01-15:00, Mon., 08 Dec. 0.0364 0.0318 0.0337
13:01-14:00, Mon., 08 Dec. 0.0367 0.0310 0.0337
12:01-13:00, Mon., 08 Dec. 0.0366 0.0311 0.0336
11:01-12:00, Mon., 08 Dec. 0.0370 0.0318 0.0338
10:01-11:00, Mon., 08 Dec. 0.0361 0.0312 0.0338
09:01-10:00, Mon., 08 Dec. 0.0367 0.0327 0.0346
08:01-09:00, Mon., 08 Dec. 0.0373 0.0329 0.0349
07:01-08:00, Mon., 08 Dec. 0.0378 0.0322 0.0351
06:01-07:00, Mon., 08 Dec. 0.0374 0.0325 0.0352
05:01-06:00, Mon., 08 Dec. 0.0385 0.0334 0.0354
04:01-05:00, Mon., 08 Dec. 0.0377 0.0331 0.0354
03:01-04:00, Mon., 08 Dec. 0.0373 0.0332 0.0351
02:01-03:00, Mon., 08 Dec. 0.0374 0.0324 0.0349
01:01-02:00, Mon., 08 Dec. 0.0377 0.0328 0.0350
00:01-01:00, Mon., 08 Dec. 0.0370 0.0327 0.0349
23:01-24:00, Sun., 07 Dec. 0.0377 0.0325 0.0348
22:01-23:00, Sun., 07 Dec. 0.0367 0.0323 0.0344
21:01-22:00, Sun., 07 Dec. 0.0366 0.0320 0.0344
20:01-21:00, Sun., 07 Dec. 0.0360 0.0322 0.0342
19:01-20:00, Sun., 07 Dec. 0.0374 0.0312 0.0338
18:01-19:00, Sun., 07 Dec. 0.0362 0.0304 0.0333
17:01-18:00, Sun., 07 Dec. 0.0350 0.0313 0.0331
16:01-17:00, Sun., 07 Dec. 0.0352 0.0297 0.0328
15:01-16:00, Sun., 07 Dec. 0.0358 0.0309 0.0333
14:01-15:00, Sun., 07 Dec. 0.0360 0.0314 0.0340
13:01-14:00, Sun., 07 Dec. 0.0359 0.0314 0.0335
12:01-13:00, Sun., 07 Dec. 0.0360 0.0316 0.0340
11:01-12:00, Sun., 07 Dec. 0.0375 0.0319 0.0345
10:01-11:00, Sun., 07 Dec. 0.0377 0.0322 0.0350
09:01-10:00, Sun., 07 Dec. 0.0378 0.0328 0.0352
08:01-09:00, Sun., 07 Dec. 0.0377 0.0332 0.0356
07:01-08:00, Sun., 07 Dec. 0.0377 0.0325 0.0352
06:01-07:00, Sun., 07 Dec. 0.0377 0.0331 0.0353
05:01-06:00, Sun., 07 Dec. 0.0387 0.0335 0.0359
04:01-05:00, Sun., 07 Dec. 0.0377 0.0337 0.0356
03:01-04:00, Sun., 07 Dec. 0.0377 0.0326 0.0352
02:01-03:00, Sun., 07 Dec. 0.0372 0.0329 0.0349
01:01-02:00, Sun., 07 Dec. 0.0384 0.0329 0.0353
00:01-01:00, Sun., 07 Dec. 0.0384 0.0329 0.0353
23:01-24:00, Sat., 06 Dec. 0.0375 0.0325 0.0352
22:01-23:00, Sat., 06 Dec. 0.0382 0.0329 0.0351
21:01-22:00, Sat., 06 Dec. 0.0384 0.0325 0.0344
20:01-21:00, Sat., 06 Dec. 0.0374 0.0323 0.0343
19:01-20:00, Sat., 06 Dec. 0.0371 0.0316 0.0342
18:01-19:00, Sat., 06 Dec. 0.0354 0.0301 0.0336
17:01-18:00, Sat., 06 Dec. 0.0359 0.0296 0.0334
16:01-17:00, Sat., 06 Dec. 0.0362 0.0312 0.0335
15:01-16:00, Sat., 06 Dec. 0.0350 0.0315 0.0334
14:01-15:00, Sat., 06 Dec. 0.0364 0.0312 0.0338
13:01-14:00, Sat., 06 Dec. 0.0359 0.0323 0.0340
12:01-13:00, Sat., 06 Dec. 0.0365 0.0318 0.0339
11:01-12:00, Sat., 06 Dec. 0.0363 0.0306 0.0337
10:01-11:00, Sat., 06 Dec. 0.0370 0.0322 0.0343
09:01-10:00, Sat., 06 Dec. 0.0369 0.0327 0.0351
08:01-09:00, Sat., 06 Dec. 0.0377 0.0339 0.0355
07:01-08:00, Sat., 06 Dec. 0.0379 0.0332 0.0357
06:01-07:00, Sat., 06 Dec. 0.0389 0.0332 0.0360
05:01-06:00, Sat., 06 Dec. 0.0379 0.0335 0.0354
04:01-05:00, Sat., 06 Dec. 0.0377 0.0331 0.0353
03:01-04:00, Sat., 06 Dec. 0.0380 0.0332 0.0355
02:01-03:00, Sat., 06 Dec. 0.0388 0.0333 0.0358
01:01-02:00, Sat., 06 Dec. 0.0377 0.0335 0.0356
00:01-01:00, Sat., 06 Dec. 0.0379 0.0334 0.0356
23:01-24:00, Fri., 05 Dec. 0.0381 0.0326 0.0355
22:01-23:00, Fri., 05 Dec. 0.0384 0.0324 0.0352
21:01-22:00, Fri., 05 Dec. 0.0369 0.0321 0.0346
20:01-21:00, Fri., 05 Dec. 0.0362 0.0308 0.0336
19:01-20:00, Fri., 05 Dec. 0.0356 0.0300 0.0333
18:01-19:00, Fri., 05 Dec. 0.0363 0.0308 0.0334
17:01-18:00, Fri., 05 Dec. 0.0358 0.0309 0.0330
16:01-17:00, Fri., 05 Dec. 0.0362 0.0314 0.0339
15:01-16:00, Fri., 05 Dec. 0.0372 0.0302 0.0339
14:01-15:00, Fri., 05 Dec. 0.0354 0.0304 0.0337
13:01-14:00, Fri., 05 Dec. 0.0370 0.0325 0.0343
12:01-13:00, Fri., 05 Dec. 0.0365 0.0322 0.0343
11:01-12:00, Fri., 05 Dec. 0.0365 0.0321 0.0343
10:01-11:00, Fri., 05 Dec. 0.0372 0.0317 0.0342
09:01-10:00, Fri., 05 Dec. 0.0367 0.0330 0.0348
08:01-09:00, Fri., 05 Dec. 0.0375 0.0332 0.0355
07:01-08:00, Fri., 05 Dec. 0.0375 0.0320 0.0353
06:01-07:00, Fri., 05 Dec. 0.0363 0.0327 0.0348
05:01-06:00, Fri., 05 Dec. 0.0369 0.0319 0.0344
04:01-05:00, Fri., 05 Dec. 0.0374 0.0330 0.0349
03:01-04:00, Fri., 05 Dec. 0.0370 0.0325 0.0348
02:01-03:00, Fri., 05 Dec. 0.0368 0.0318 0.0343
01:01-02:00, Fri., 05 Dec. 0.0363 0.0319 0.0340
00:01-01:00, Fri., 05 Dec. 0.0364 0.0322 0.0341
23:01-24:00, Thu., 04 Dec. 0.0362 0.0316 0.0343
22:01-23:00, Thu., 04 Dec. 0.0367 0.0322 0.0344
21:01-22:00, Thu., 04 Dec. 0.0356 0.0316 0.0336
20:01-21:00, Thu., 04 Dec. 0.0352 0.0301 0.0329
19:01-20:00, Thu., 04 Dec. 0.0356 0.0305 0.0328
18:01-19:00, Thu., 04 Dec. 0.0352 0.0293 0.0330
17:01-18:00, Thu., 04 Dec. 0.0353 0.0310 0.0328
16:01-17:00, Thu., 04 Dec. 0.0352 0.0309 0.0330
15:01-16:00, Thu., 04 Dec. 0.0354 0.0309 0.0334
14:01-15:00, Thu., 04 Dec. 0.0360 0.0315 0.0337
13:01-14:00, Thu., 04 Dec. 0.0364 0.0318 0.0339
12:01-13:00, Thu., 04 Dec. 0.0368 0.0309 0.0339
11:01-12:00, Thu., 04 Dec. 0.0361 0.0315 0.0338
10:01-11:00, Thu., 04 Dec. 0.0365 0.0005 0.0326
09:01-10:00, Thu., 04 Dec. 0.0365 0.0318 0.0342
08:01-09:00, Thu., 04 Dec. 0.0365 0.0318 0.0342
07:01-08:00, Thu., 04 Dec. 0.0366 0.0325 0.0344
06:01-07:00, Thu., 04 Dec. 0.0363 0.0322 0.0341
05:01-06:00, Thu., 04 Dec. 0.0372 0.0321 0.0340
04:01-05:00, Thu., 04 Dec. 0.0370 0.0311 0.0339
03:01-04:00, Thu., 04 Dec. 0.0361 0.0317 0.0337
02:01-03:00, Thu., 04 Dec. 0.0365 0.0316 0.0337
01:01-02:00, Thu., 04 Dec. 0.0365 0.0312 0.0335
00:01-01:00, Thu., 04 Dec. 0.0358 0.0311 0.0335
23:01-24:00, Wed., 03 Dec. 0.0360 0.0312 0.0334
22:01-23:00, Wed., 03 Dec. 0.0363 0.0327 0.0344
21:01-22:00, Wed., 03 Dec. 0.0359 0.0315 0.0339
20:01-21:00, Wed., 03 Dec. 0.0367 0.0313 0.0339
19:01-20:00, Wed., 03 Dec. 0.0362 0.0317 0.0340
18:01-19:00, Wed., 03 Dec. 0.0360 0.0313 0.0337