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
04:01-05:00, Mon., 22 Jun. 0.0351 0.0310 0.0329
03:01-04:00, Mon., 22 Jun. 0.0349 0.0304 0.0325
02:01-03:00, Mon., 22 Jun. 0.0357 0.0309 0.0329
01:01-02:00, Mon., 22 Jun. 0.0360 0.0311 0.0330
00:01-01:00, Mon., 22 Jun. 0.0363 0.0313 0.0333
23:01-24:00, Sun., 21 Jun. 0.0373 0.0319 0.0340
22:01-23:00, Sun., 21 Jun. 0.0386 0.0324 0.0351
21:01-22:00, Sun., 21 Jun. 0.0358 0.0311 0.0333
20:01-21:00, Sun., 21 Jun. 0.0359 0.0304 0.0333
19:01-20:00, Sun., 21 Jun. 0.0360 0.0311 0.0334
18:01-19:00, Sun., 21 Jun. 0.0358 0.0312 0.0334
17:01-18:00, Sun., 21 Jun. 0.0367 0.0309 0.0335
16:01-17:00, Sun., 21 Jun. 0.0353 0.0310 0.0334
15:01-16:00, Sun., 21 Jun. 0.0359 0.0315 0.0335
14:01-15:00, Sun., 21 Jun. 0.0360 0.0315 0.0332
13:01-14:00, Sun., 21 Jun. 0.0366 0.0308 0.0332
12:01-13:00, Sun., 21 Jun. 0.0359 0.0313 0.0333
11:01-12:00, Sun., 21 Jun. 0.0356 0.0306 0.0331
10:01-11:00, Sun., 21 Jun. 0.0363 0.0302 0.0332
09:01-10:00, Sun., 21 Jun. 0.0353 0.0315 0.0333
08:01-09:00, Sun., 21 Jun. 0.0366 0.0308 0.0330
07:01-08:00, Sun., 21 Jun. 0.0357 0.0319 0.0340
06:01-07:00, Sun., 21 Jun. 0.0399 0.0333 0.0369
05:01-06:00, Sun., 21 Jun. 0.0490 0.0368 0.0433
04:01-05:00, Sun., 21 Jun. 0.0563 0.0417 0.0505
03:01-04:00, Sun., 21 Jun. 0.0432 0.0353 0.0384
02:01-03:00, Sun., 21 Jun. 0.0414 0.0367 0.0389
01:01-02:00, Sun., 21 Jun. 0.0421 0.0373 0.0396
00:01-01:00, Sun., 21 Jun. 0.0432 0.0374 0.0406
23:01-24:00, Sat., 20 Jun. 0.0447 0.0377 0.0405
22:01-23:00, Sat., 20 Jun. 0.0430 0.0355 0.0393
21:01-22:00, Sat., 20 Jun. 0.0441 0.0361 0.0399
20:01-21:00, Sat., 20 Jun. 0.0471 0.0400 0.0438
19:01-20:00, Sat., 20 Jun. 0.0475 0.0388 0.0432
18:01-19:00, Sat., 20 Jun. 0.0443 0.0384 0.0412
17:01-18:00, Sat., 20 Jun. 0.0428 0.0368 0.0394
16:01-17:00, Sat., 20 Jun. 0.0409 0.0361 0.0385
15:01-16:00, Sat., 20 Jun. 0.0395 0.0356 0.0376
14:01-15:00, Sat., 20 Jun. 0.0403 0.0352 0.0376
13:01-14:00, Sat., 20 Jun. 0.0409 0.0365 0.0387
12:01-13:00, Sat., 20 Jun. 0.0391 0.0310 0.0355
11:01-12:00, Sat., 20 Jun. 0.0360 0.0305 0.0332
10:01-11:00, Sat., 20 Jun. 0.0363 0.0316 0.0335
09:01-10:00, Sat., 20 Jun. 0.0381 0.0322 0.0354
08:01-09:00, Sat., 20 Jun. 0.0412 0.0341 0.0374
07:01-08:00, Sat., 20 Jun. 0.0412 0.0343 0.0375
06:01-07:00, Sat., 20 Jun. 0.0452 0.0377 0.0419
05:01-06:00, Sat., 20 Jun. 0.0420 0.0332 0.0378
04:01-05:00, Sat., 20 Jun. 0.0344 0.0309 0.0328
03:01-04:00, Sat., 20 Jun. 0.0353 0.0312 0.0331
02:01-03:00, Sat., 20 Jun. 0.0351 0.0308 0.0330
01:01-02:00, Sat., 20 Jun. 0.0349 0.0306 0.0330
00:01-01:00, Sat., 20 Jun. 0.0359 0.0311 0.0329
23:01-24:00, Fri., 19 Jun. 0.0346 0.0305 0.0329
22:01-23:00, Fri., 19 Jun. 0.0362 0.0308 0.0332
21:01-22:00, Fri., 19 Jun. 0.0356 0.0304 0.0331
20:01-21:00, Fri., 19 Jun. 0.0354 0.0311 0.0334
19:01-20:00, Fri., 19 Jun. 0.0359 0.0304 0.0332
18:01-19:00, Fri., 19 Jun. 0.0354 0.0318 0.0336
17:01-18:00, Fri., 19 Jun. 0.0370 0.0308 0.0333
16:01-17:00, Fri., 19 Jun. 0.0353 0.0316 0.0333
15:01-16:00, Fri., 19 Jun. 0.0359 0.0311 0.0333
14:01-15:00, Fri., 19 Jun. 0.0365 0.0314 0.0333
13:01-14:00, Fri., 19 Jun. 0.0360 0.0308 0.0332
12:01-13:00, Fri., 19 Jun. 0.0355 0.0304 0.0331
11:01-12:00, Fri., 19 Jun. 0.0350 0.0305 0.0332
10:01-11:00, Fri., 19 Jun. 0.0361 0.0301 0.0332
09:01-10:00, Fri., 19 Jun. 0.0356 0.0307 0.0331
08:01-09:00, Fri., 19 Jun. 0.0374 0.0306 0.0335
07:01-08:00, Fri., 19 Jun. 0.0362 0.0311 0.0336
06:01-07:00, Fri., 19 Jun. 0.0352 0.0311 0.0329
05:01-06:00, Fri., 19 Jun. 0.0349 0.0305 0.0329
04:01-05:00, Fri., 19 Jun. 0.0349 0.0304 0.0329
03:01-04:00, Fri., 19 Jun. 0.0358 0.0306 0.0327
02:01-03:00, Fri., 19 Jun. 0.0361 0.0302 0.0326
01:01-02:00, Fri., 19 Jun. 0.0361 0.0303 0.0327
00:01-01:00, Fri., 19 Jun. 0.0343 0.0296 0.0325
23:01-24:00, Thu., 18 Jun. 0.0347 0.0307 0.0326
22:01-23:00, Thu., 18 Jun. 0.0348 0.0295 0.0325
21:01-22:00, Thu., 18 Jun. 0.0352 0.0304 0.0324
20:01-21:00, Thu., 18 Jun. 0.0354 0.0302 0.0325
19:01-20:00, Thu., 18 Jun. 0.0346 0.0302 0.0326
18:01-19:00, Thu., 18 Jun. 0.0350 0.0304 0.0328
17:01-18:00, Thu., 18 Jun. 0.0359 0.0308 0.0329
16:01-17:00, Thu., 18 Jun. 0.0364 0.0309 0.0330
15:01-16:00, Thu., 18 Jun. 0.0355 0.0306 0.0328
14:01-15:00, Thu., 18 Jun. 0.0349 0.0311 0.0329
13:01-14:00, Thu., 18 Jun. 0.0349 0.0311 0.0328
12:01-13:00, Thu., 18 Jun. 0.0353 0.0305 0.0329
11:01-12:00, Thu., 18 Jun. 0.0356 0.0312 0.0334
10:01-11:00, Thu., 18 Jun. 0.0367 0.0324 0.0347
09:01-10:00, Thu., 18 Jun. 0.0392 0.0343 0.0369
08:01-09:00, Thu., 18 Jun. 0.0405 0.0346 0.0374
07:01-08:00, Thu., 18 Jun. 0.0426 0.0368 0.0401
06:01-07:00, Thu., 18 Jun. 0.0416 0.0369 0.0394
05:01-06:00, Thu., 18 Jun. 0.0406 0.0360 0.0382
04:01-05:00, Thu., 18 Jun. 0.0422 0.0353 0.0383
03:01-04:00, Thu., 18 Jun. 0.0385 0.0322 0.0356
02:01-03:00, Thu., 18 Jun. 0.0360 0.0315 0.0334
01:01-02:00, Thu., 18 Jun. 0.0352 0.0309 0.0332
00:01-01:00, Thu., 18 Jun. 0.0356 0.0308 0.0330
23:01-24:00, Wed., 17 Jun. 0.0363 0.0308 0.0331
22:01-23:00, Wed., 17 Jun. 0.0353 0.0308 0.0329
21:01-22:00, Wed., 17 Jun. 0.0349 0.0300 0.0328
20:01-21:00, Wed., 17 Jun. 0.0349 0.0303 0.0327
19:01-20:00, Wed., 17 Jun. 0.0352 0.0303 0.0327
18:01-19:00, Wed., 17 Jun. 0.0350 0.0304 0.0325
17:01-18:00, Wed., 17 Jun. 0.0353 0.0296 0.0330
16:01-17:00, Wed., 17 Jun. 0.0355 0.0309 0.0331
15:01-16:00, Wed., 17 Jun. 0.0360 0.0306 0.0331
14:01-15:00, Wed., 17 Jun. 0.0353 0.0306 0.0328
13:01-14:00, Wed., 17 Jun. 0.0353 0.0303 0.0328
12:01-13:00, Wed., 17 Jun. 0.0353 0.0308 0.0327
11:01-12:00, Wed., 17 Jun. 0.0359 0.0308 0.0329
10:01-11:00, Wed., 17 Jun. 0.0353 0.0297 0.0328
09:01-10:00, Wed., 17 Jun. 0.0352 0.0302 0.0333
08:01-09:00, Wed., 17 Jun. 0.0367 0.0316 0.0342
07:01-08:00, Wed., 17 Jun. 0.0384 0.0332 0.0353
06:01-07:00, Wed., 17 Jun. 0.0381 0.0327 0.0353
05:01-06:00, Wed., 17 Jun. 0.0381 0.0334 0.0359
04:01-05:00, Wed., 17 Jun. 0.0381 0.0329 0.0351
03:01-04:00, Wed., 17 Jun. 0.0363 0.0321 0.0346
02:01-03:00, Wed., 17 Jun. 0.0357 0.0310 0.0331
01:01-02:00, Wed., 17 Jun. 0.0357 0.0311 0.0328
00:01-01:00, Wed., 17 Jun. 0.0351 0.0297 0.0325
23:01-24:00, Tue., 16 Jun. 0.0342 0.0307 0.0322
22:01-23:00, Tue., 16 Jun. 0.0356 0.0301 0.0326
21:01-22:00, Tue., 16 Jun. 0.0352 0.0301 0.0327
20:01-21:00, Tue., 16 Jun. 0.0348 0.0302 0.0327
19:01-20:00, Tue., 16 Jun. 0.0356 0.0282 0.0326
18:01-19:00, Tue., 16 Jun. 0.0353 0.0304 0.0329
17:01-18:00, Tue., 16 Jun. 0.0363 0.0304 0.0330
16:01-17:00, Tue., 16 Jun. 0.0360 0.0312 0.0334
15:01-16:00, Tue., 16 Jun. 0.0354 0.0312 0.0332
14:01-15:00, Tue., 16 Jun. 0.0355 0.0318 0.0335
13:01-14:00, Tue., 16 Jun. 0.0352 0.0308 0.0331
12:01-13:00, Tue., 16 Jun. 0.0367 0.0317 0.0334
11:01-12:00, Tue., 16 Jun. 0.0356 0.0298 0.0331
10:01-11:00, Tue., 16 Jun. 0.0363 0.0316 0.0334
09:01-10:00, Tue., 16 Jun. 0.0356 0.0311 0.0333
08:01-09:00, Tue., 16 Jun. 0.0374 0.0309 0.0334
07:01-08:00, Tue., 16 Jun. 0.0355 0.0315 0.0333
06:01-07:00, Tue., 16 Jun. 0.0360 0.0311 0.0335
05:01-06:00, Tue., 16 Jun. 0.0363 0.0305 0.0338
04:01-05:00, Tue., 16 Jun. 0.0362 0.0308 0.0336
03:01-04:00, Tue., 16 Jun. 0.0367 0.0311 0.0334
02:01-03:00, Tue., 16 Jun. 0.0352 0.0308 0.0334
01:01-02:00, Tue., 16 Jun. 0.0362 0.0305 0.0332
00:01-01:00, Tue., 16 Jun. 0.0353 0.0308 0.0331
23:01-24:00, Mon., 15 Jun. 0.0349 0.0310 0.0326
22:01-23:00, Mon., 15 Jun. 0.0347 0.0302 0.0324
21:01-22:00, Mon., 15 Jun. 0.0355 0.0302 0.0326
20:01-21:00, Mon., 15 Jun. 0.0349 0.0303 0.0327
19:01-20:00, Mon., 15 Jun. 0.0351 0.0297 0.0327
18:01-19:00, Mon., 15 Jun. 0.0348 0.0302 0.0325
17:01-18:00, Mon., 15 Jun. 0.0353 0.0299 0.0323
16:01-17:00, Mon., 15 Jun. 0.0349 0.0300 0.0324
15:01-16:00, Mon., 15 Jun. 0.0351 0.0307 0.0329
14:01-15:00, Mon., 15 Jun. 0.0350 0.0309 0.0327
13:01-14:00, Mon., 15 Jun. 0.0354 0.0309 0.0330
12:01-13:00, Mon., 15 Jun. 0.0360 0.0299 0.0333
11:01-12:00, Mon., 15 Jun. 0.0352 0.0309 0.0329
10:01-11:00, Mon., 15 Jun. 0.0354 0.0311 0.0334
09:01-10:00, Mon., 15 Jun. 0.0375 0.0326 0.0353
08:01-09:00, Mon., 15 Jun. 0.0391 0.0315 0.0347
07:01-08:00, Mon., 15 Jun. 0.0421 0.0346 0.0381
06:01-07:00, Mon., 15 Jun. 0.0447 0.0375 0.0412
05:01-06:00, Mon., 15 Jun. 0.0430 0.0373 0.0407
04:01-05:00, Mon., 15 Jun. 0.0427 0.0360 0.0394
03:01-04:00, Mon., 15 Jun. 0.0423 0.0362 0.0392
02:01-03:00, Mon., 15 Jun. 0.0429 0.0360 0.0399
01:01-02:00, Mon., 15 Jun. 0.0391 0.0347 0.0369
00:01-01:00, Mon., 15 Jun. 0.0399 0.0349 0.0377
23:01-24:00, Sun., 14 Jun. 0.0391 0.0315 0.0354
22:01-23:00, Sun., 14 Jun. 0.0347 0.0307 0.0329
21:01-22:00, Sun., 14 Jun. 0.0353 0.0303 0.0328
20:01-21:00, Sun., 14 Jun. 0.0347 0.0298 0.0326
19:01-20:00, Sun., 14 Jun. 0.0354 0.0304 0.0327
18:01-19:00, Sun., 14 Jun. 0.0347 0.0294 0.0328
17:01-18:00, Sun., 14 Jun. 0.0353 0.0306 0.0330
16:01-17:00, Sun., 14 Jun. 0.0349 0.0308 0.0328
15:01-16:00, Sun., 14 Jun. 0.0353 0.0311 0.0333
14:01-15:00, Sun., 14 Jun. 0.0368 0.0317 0.0334
13:01-14:00, Sun., 14 Jun. 0.0358 0.0311 0.0331
12:01-13:00, Sun., 14 Jun. 0.0369 0.0315 0.0334
11:01-12:00, Sun., 14 Jun. 0.0357 0.0311 0.0338
10:01-11:00, Sun., 14 Jun. 0.0374 0.0321 0.0345
09:01-10:00, Sun., 14 Jun. 0.0372 0.0322 0.0346
08:01-09:00, Sun., 14 Jun. 0.0376 0.0321 0.0345
07:01-08:00, Sun., 14 Jun. 0.0379 0.0322 0.0348
06:01-07:00, Sun., 14 Jun. 0.0374 0.0332 0.0352
05:01-06:00, Sun., 14 Jun. 0.0374 0.0327 0.0353
04:01-05:00, Sun., 14 Jun. 0.0374 0.0309 0.0350
03:01-04:00, Sun., 14 Jun. 0.0375 0.0317 0.0339
02:01-03:00, Sun., 14 Jun. 0.0364 0.0310 0.0336
01:01-02:00, Sun., 14 Jun. 0.0360 0.0311 0.0338
00:01-01:00, Sun., 14 Jun. 0.0374 0.0311 0.0336
23:01-24:00, Sat., 13 Jun. 0.0373 0.0311 0.0341
22:01-23:00, Sat., 13 Jun. 0.0366 0.0319 0.0342
21:01-22:00, Sat., 13 Jun. 0.0356 0.0318 0.0336
20:01-21:00, Sat., 13 Jun. 0.0356 0.0312 0.0332
19:01-20:00, Sat., 13 Jun. 0.0353 0.0306 0.0330
18:01-19:00, Sat., 13 Jun. 0.0354 0.0309 0.0332
17:01-18:00, Sat., 13 Jun. 0.0353 0.0317 0.0334
16:01-17:00, Sat., 13 Jun. 0.0356 0.0314 0.0334
15:01-16:00, Sat., 13 Jun. 0.0356 0.0315 0.0335
14:01-15:00, Sat., 13 Jun. 0.0361 0.0306 0.0333
13:01-14:00, Sat., 13 Jun. 0.0360 0.0314 0.0335
12:01-13:00, Sat., 13 Jun. 0.0356 0.0315 0.0333
11:01-12:00, Sat., 13 Jun. 0.0356 0.0316 0.0336
10:01-11:00, Sat., 13 Jun. 0.0370 0.0314 0.0338
09:01-10:00, Sat., 13 Jun. 0.0363 0.0309 0.0336
08:01-09:00, Sat., 13 Jun. 0.0367 0.0311 0.0338
07:01-08:00, Sat., 13 Jun. 0.0361 0.0322 0.0338
06:01-07:00, Sat., 13 Jun. 0.0367 0.0318 0.0342
05:01-06:00, Sat., 13 Jun. 0.0356 0.0311 0.0339
04:01-05:00, Sat., 13 Jun. 0.0372 0.0320 0.0340
03:01-04:00, Sat., 13 Jun. 0.0363 0.0315 0.0339
02:01-03:00, Sat., 13 Jun. 0.0367 0.0315 0.0336
01:01-02:00, Sat., 13 Jun. 0.0367 0.0318 0.0336
00:01-01:00, Sat., 13 Jun. 0.0364 0.0313 0.0337
23:01-24:00, Fri., 12 Jun. 0.0376 0.0311 0.0343
22:01-23:00, Fri., 12 Jun. 0.0368 0.0314 0.0335
21:01-22:00, Fri., 12 Jun. 0.0355 0.0311 0.0335
20:01-21:00, Fri., 12 Jun. 0.0357 0.0307 0.0332
19:01-20:00, Fri., 12 Jun. 0.0354 0.0308 0.0332
18:01-19:00, Fri., 12 Jun. 0.0359 0.0311 0.0338
17:01-18:00, Fri., 12 Jun. 0.0374 0.0301 0.0335
16:01-17:00, Fri., 12 Jun. 0.0374 0.0318 0.0345
15:01-16:00, Fri., 12 Jun. 0.0436 0.0336 0.0381
14:01-15:00, Fri., 12 Jun. 0.0590 0.0423 0.0496
13:01-14:00, Fri., 12 Jun. 0.0626 0.0527 0.0577
12:01-13:00, Fri., 12 Jun. 0.0486 0.0318 0.0368
11:01-12:00, Fri., 12 Jun. 0.0364 0.0319 0.0337
10:01-11:00, Fri., 12 Jun. 0.0366 0.0308 0.0336
09:01-10:00, Fri., 12 Jun. 0.0355 0.0316 0.0335
08:01-09:00, Fri., 12 Jun. 0.0353 0.0304 0.0334
07:01-08:00, Fri., 12 Jun. 0.0367 0.0310 0.0333
06:01-07:00, Fri., 12 Jun. 0.0359 0.0314 0.0335
05:01-06:00, Fri., 12 Jun. 0.0353 0.0313 0.0333