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
23:01-24:00, Mon., 19 May. 0.0350 0.0312 0.0330
22:01-23:00, Mon., 19 May. 0.0352 0.0308 0.0332
21:01-22:00, Mon., 19 May. 0.0364 0.0304 0.0330
20:01-21:00, Mon., 19 May. 0.0355 0.0312 0.0331
19:01-20:00, Mon., 19 May. 0.0356 0.0304 0.0334
18:01-19:00, Mon., 19 May. 0.0348 0.0314 0.0330
17:01-18:00, Mon., 19 May. 0.0346 0.0308 0.0329
16:01-17:00, Mon., 19 May. 0.0356 0.0309 0.0331
15:01-16:00, Mon., 19 May. 0.0355 0.0315 0.0332
14:01-15:00, Mon., 19 May. 0.0358 0.0306 0.0334
13:01-14:00, Mon., 19 May. 0.0360 0.0308 0.0334
12:01-13:00, Mon., 19 May. 0.0367 0.0317 0.0338
11:01-12:00, Mon., 19 May. 0.0361 0.0302 0.0335
10:01-11:00, Mon., 19 May. 0.0360 0.0307 0.0337
09:01-10:00, Mon., 19 May. 0.0361 0.0317 0.0342
08:01-09:00, Mon., 19 May. 0.0382 0.0328 0.0358
07:01-08:00, Mon., 19 May. 0.0372 0.0317 0.0337
06:01-07:00, Mon., 19 May. 0.0359 0.0309 0.0334
05:01-06:00, Mon., 19 May. 0.0359 0.0311 0.0338
04:01-05:00, Mon., 19 May. 0.0373 0.0321 0.0341
03:01-04:00, Mon., 19 May. 0.0367 0.0311 0.0341
02:01-03:00, Mon., 19 May. 0.0358 0.0317 0.0339
01:01-02:00, Mon., 19 May. 0.0363 0.0312 0.0340
00:01-01:00, Mon., 19 May. 0.0368 0.0319 0.0337
23:01-24:00, Sun., 18 May. 0.0367 0.0318 0.0339
22:01-23:00, Sun., 18 May. 0.0366 0.0315 0.0342
21:01-22:00, Sun., 18 May. 0.0360 0.0317 0.0338
20:01-21:00, Sun., 18 May. 0.0363 0.0315 0.0336
19:01-20:00, Sun., 18 May. 0.0360 0.0313 0.0334
18:01-19:00, Sun., 18 May. 0.0361 0.0315 0.0334
17:01-18:00, Sun., 18 May. 0.0356 0.0314 0.0334
16:01-17:00, Sun., 18 May. 0.0353 0.0308 0.0331
15:01-16:00, Sun., 18 May. 0.0358 0.0310 0.0334
14:01-15:00, Sun., 18 May. 0.0357 0.0315 0.0335
13:01-14:00, Sun., 18 May. 0.0355 0.0314 0.0335
12:01-13:00, Sun., 18 May. 0.0355 0.0309 0.0333
11:01-12:00, Sun., 18 May. 0.0356 0.0305 0.0333
10:01-11:00, Sun., 18 May. 0.0356 0.0316 0.0337
09:01-10:00, Sun., 18 May. 0.0363 0.0315 0.0338
08:01-09:00, Sun., 18 May. 0.0364 0.0314 0.0340
07:01-08:00, Sun., 18 May. 0.0369 0.0316 0.0344
06:01-07:00, Sun., 18 May. 0.0375 0.0325 0.0344
05:01-06:00, Sun., 18 May. 0.0386 0.0330 0.0350
04:01-05:00, Sun., 18 May. 0.0367 0.0325 0.0347
03:01-04:00, Sun., 18 May. 0.0363 0.0321 0.0343
02:01-03:00, Sun., 18 May. 0.0361 0.0315 0.0339
01:01-02:00, Sun., 18 May. 0.0361 0.0310 0.0338
00:01-01:00, Sun., 18 May. 0.0360 0.0308 0.0335
23:01-24:00, Sat., 17 May. 0.0356 0.0311 0.0331
22:01-23:00, Sat., 17 May. 0.0362 0.0307 0.0332
21:01-22:00, Sat., 17 May. 0.0349 0.0311 0.0330
20:01-21:00, Sat., 17 May. 0.0351 0.0308 0.0328
19:01-20:00, Sat., 17 May. 0.0358 0.0303 0.0331
18:01-19:00, Sat., 17 May. 0.0355 0.0313 0.0331
17:01-18:00, Sat., 17 May. 0.0355 0.0312 0.0330
16:01-17:00, Sat., 17 May. 0.0353 0.0309 0.0328
15:01-16:00, Sat., 17 May. 0.0357 0.0300 0.0332
14:01-15:00, Sat., 17 May. 0.0386 0.0328 0.0354
13:01-14:00, Sat., 17 May. 0.0412 0.0357 0.0383
12:01-13:00, Sat., 17 May. 0.0402 0.0352 0.0382
11:01-12:00, Sat., 17 May. 0.0390 0.0329 0.0353
10:01-11:00, Sat., 17 May. 0.0367 0.0314 0.0339
09:01-10:00, Sat., 17 May. 0.0373 0.0319 0.0343
08:01-09:00, Sat., 17 May. 0.0383 0.0324 0.0347
07:01-08:00, Sat., 17 May. 0.0386 0.0330 0.0352
06:01-07:00, Sat., 17 May. 0.0388 0.0331 0.0361
05:01-06:00, Sat., 17 May. 0.0416 0.0363 0.0392
04:01-05:00, Sat., 17 May. 0.0413 0.0366 0.0390
03:01-04:00, Sat., 17 May. 0.0399 0.0328 0.0366
02:01-03:00, Sat., 17 May. 0.0360 0.0311 0.0337
01:01-02:00, Sat., 17 May. 0.0356 0.0304 0.0330
00:01-01:00, Sat., 17 May. 0.0346 0.0301 0.0330
23:01-24:00, Fri., 16 May. 0.0349 0.0302 0.0330
22:01-23:00, Fri., 16 May. 0.0349 0.0309 0.0328
21:01-22:00, Fri., 16 May. 0.0349 0.0309 0.0331
20:01-21:00, Fri., 16 May. 0.0349 0.0302 0.0330
19:01-20:00, Fri., 16 May. 0.0348 0.0307 0.0326
18:01-19:00, Fri., 16 May. 0.0357 0.0306 0.0328
17:01-18:00, Fri., 16 May. 0.0352 0.0301 0.0327
16:01-17:00, Fri., 16 May. 0.0352 0.0310 0.0331
15:01-16:00, Fri., 16 May. 0.0350 0.0300 0.0328
14:01-15:00, Fri., 16 May. 0.0363 0.0308 0.0331
13:01-14:00, Fri., 16 May. 0.0361 0.0311 0.0333
12:01-13:00, Fri., 16 May. 0.0356 0.0312 0.0331
11:01-12:00, Fri., 16 May. 0.0352 0.0300 0.0330
10:01-11:00, Fri., 16 May. 0.0355 0.0304 0.0331
09:01-10:00, Fri., 16 May. 0.0369 0.0309 0.0335
08:01-09:00, Fri., 16 May. 0.0361 0.0304 0.0337
07:01-08:00, Fri., 16 May. 0.0365 0.0318 0.0342
06:01-07:00, Fri., 16 May. 0.0365 0.0318 0.0339
05:01-06:00, Fri., 16 May. 0.0369 0.0320 0.0342
04:01-05:00, Fri., 16 May. 0.0364 0.0309 0.0338
03:01-04:00, Fri., 16 May. 0.0364 0.0321 0.0340
02:01-03:00, Fri., 16 May. 0.0362 0.0320 0.0337
01:01-02:00, Fri., 16 May. 0.0369 0.0314 0.0340
00:01-01:00, Fri., 16 May. 0.0362 0.0315 0.0337
23:01-24:00, Thu., 15 May. 0.0349 0.0306 0.0329
22:01-23:00, Thu., 15 May. 0.0352 0.0308 0.0331
21:01-22:00, Thu., 15 May. 0.0349 0.0308 0.0330
20:01-21:00, Thu., 15 May. 0.0354 0.0311 0.0326
19:01-20:00, Thu., 15 May. 0.0356 0.0308 0.0329
18:01-19:00, Thu., 15 May. 0.0360 0.0301 0.0326
17:01-18:00, Thu., 15 May. 0.0346 0.0307 0.0325
16:01-17:00, Thu., 15 May. 0.0353 0.0309 0.0328
15:01-16:00, Thu., 15 May. 0.0351 0.0309 0.0328
14:01-15:00, Thu., 15 May. 0.0360 0.0311 0.0331
13:01-14:00, Thu., 15 May. 0.0358 0.0301 0.0331
12:01-13:00, Thu., 15 May. 0.0350 0.0303 0.0328
11:01-12:00, Thu., 15 May. 0.0361 0.0311 0.0330
10:01-11:00, Thu., 15 May. 0.0356 0.0312 0.0333
09:01-10:00, Thu., 15 May. 0.0349 0.0315 0.0333
08:01-09:00, Thu., 15 May. 0.0359 0.0317 0.0338
07:01-08:00, Thu., 15 May. 0.0368 0.0319 0.0344
06:01-07:00, Thu., 15 May. 0.0372 0.0328 0.0349
05:01-06:00, Thu., 15 May. 0.0376 0.0323 0.0345
04:01-05:00, Thu., 15 May. 0.0365 0.0319 0.0342
03:01-04:00, Thu., 15 May. 0.0381 0.0323 0.0344
02:01-03:00, Thu., 15 May. 0.0360 0.0317 0.0340
01:01-02:00, Thu., 15 May. 0.0355 0.0312 0.0332
00:01-01:00, Thu., 15 May. 0.0357 0.0304 0.0329
23:01-24:00, Wed., 14 May. 0.0357 0.0303 0.0329
22:01-23:00, Wed., 14 May. 0.0355 0.0302 0.0329
21:01-22:00, Wed., 14 May. 0.0352 0.0307 0.0327
20:01-21:00, Wed., 14 May. 0.0358 0.0297 0.0328
19:01-20:00, Wed., 14 May. 0.0348 0.0301 0.0326
18:01-19:00, Wed., 14 May. 0.0360 0.0304 0.0328
17:01-18:00, Wed., 14 May. 0.0355 0.0303 0.0327
16:01-17:00, Wed., 14 May. 0.0354 0.0310 0.0330
15:01-16:00, Wed., 14 May. 0.0351 0.0315 0.0332
14:01-15:00, Wed., 14 May. 0.0354 0.0308 0.0331
13:01-14:00, Wed., 14 May. 0.0351 0.0312 0.0334
12:01-13:00, Wed., 14 May. 0.0355 0.0313 0.0332
11:01-12:00, Wed., 14 May. 0.0363 0.0316 0.0334
10:01-11:00, Wed., 14 May. 0.0361 0.0318 0.0336
09:01-10:00, Wed., 14 May. 0.0360 0.0315 0.0335
08:01-09:00, Wed., 14 May. 0.0367 0.0316 0.0340
07:01-08:00, Wed., 14 May. 0.0369 0.0319 0.0341
06:01-07:00, Wed., 14 May. 0.0371 0.0321 0.0342
05:01-06:00, Wed., 14 May. 0.0369 0.0312 0.0340
04:01-05:00, Wed., 14 May. 0.0361 0.0316 0.0337
03:01-04:00, Wed., 14 May. 0.0376 0.0315 0.0334
02:01-03:00, Wed., 14 May. 0.0370 0.0329 0.0345
01:01-02:00, Wed., 14 May. 0.0359 0.0306 0.0333
00:01-01:00, Wed., 14 May. 0.0347 0.0304 0.0330
23:01-24:00, Tue., 13 May. 0.0354 0.0317 0.0333
22:01-23:00, Tue., 13 May. 0.0360 0.0307 0.0332
21:01-22:00, Tue., 13 May. 0.0360 0.0302 0.0329
20:01-21:00, Tue., 13 May. 0.0346 0.0310 0.0328
19:01-20:00, Tue., 13 May. 0.0355 0.0308 0.0328
18:01-19:00, Tue., 13 May. 0.0345 0.0299 0.0328
17:01-18:00, Tue., 13 May. 0.0350 0.0305 0.0327
16:01-17:00, Tue., 13 May. 0.0353 0.0311 0.0331
15:01-16:00, Tue., 13 May. 0.0356 0.0315 0.0333
14:01-15:00, Tue., 13 May. 0.0353 0.0310 0.0332
13:01-14:00, Tue., 13 May. 0.0361 0.0304 0.0331
12:01-13:00, Tue., 13 May. 0.0351 0.0308 0.0332
11:01-12:00, Tue., 13 May. 0.0353 0.0312 0.0331
10:01-11:00, Tue., 13 May. 0.0353 0.0308 0.0331
09:01-10:00, Tue., 13 May. 0.0353 0.0312 0.0333
08:01-09:00, Tue., 13 May. 0.0358 0.0315 0.0336
07:01-08:00, Tue., 13 May. 0.0364 0.0315 0.0340
06:01-07:00, Tue., 13 May. 0.0354 0.0321 0.0339
05:01-06:00, Tue., 13 May. 0.0369 0.0317 0.0337
04:01-05:00, Tue., 13 May. 0.0363 0.0315 0.0337
03:01-04:00, Tue., 13 May. 0.0366 0.0311 0.0333
02:01-03:00, Tue., 13 May. 0.0360 0.0304 0.0334
01:01-02:00, Tue., 13 May. 0.0359 0.0311 0.0333
00:01-01:00, Tue., 13 May. 0.0355 0.0312 0.0332
23:01-24:00, Mon., 12 May. 0.0353 0.0311 0.0329
22:01-23:00, Mon., 12 May. 0.0349 0.0309 0.0330
21:01-22:00, Mon., 12 May. 0.0351 0.0304 0.0330
20:01-21:00, Mon., 12 May. 0.0362 0.0307 0.0331
19:01-20:00, Mon., 12 May. 0.0347 0.0307 0.0330
18:01-19:00, Mon., 12 May. 0.0356 0.0311 0.0333
17:01-18:00, Mon., 12 May. 0.0358 0.0308 0.0331
16:01-17:00, Mon., 12 May. 0.0356 0.0308 0.0331
15:01-16:00, Mon., 12 May. 0.0353 0.0296 0.0329
14:01-15:00, Mon., 12 May. 0.0354 0.0307 0.0330
13:01-14:00, Mon., 12 May. 0.0353 0.0315 0.0332
12:01-13:00, Mon., 12 May. 0.0358 0.0304 0.0334
11:01-12:00, Mon., 12 May. 0.0356 0.0301 0.0333
10:01-11:00, Mon., 12 May. 0.0363 0.0311 0.0329
09:01-10:00, Mon., 12 May. 0.0363 0.0306 0.0334
08:01-09:00, Mon., 12 May. 0.0358 0.0312 0.0335
07:01-08:00, Mon., 12 May. 0.0360 0.0319 0.0338
06:01-07:00, Mon., 12 May. 0.0372 0.0308 0.0345
05:01-06:00, Mon., 12 May. 0.0398 0.0329 0.0368
04:01-05:00, Mon., 12 May. 0.0389 0.0339 0.0368
03:01-04:00, Mon., 12 May. 0.0420 0.0353 0.0388
02:01-03:00, Mon., 12 May. 0.0432 0.0366 0.0397
01:01-02:00, Mon., 12 May. 0.0407 0.0323 0.0375
00:01-01:00, Mon., 12 May. 0.0385 0.0340 0.0360
23:01-24:00, Sun., 11 May. 0.0381 0.0331 0.0353
22:01-23:00, Sun., 11 May. 0.0389 0.0329 0.0364
21:01-22:00, Sun., 11 May. 0.0391 0.0323 0.0353
20:01-21:00, Sun., 11 May. 0.0353 0.0302 0.0330
19:01-20:00, Sun., 11 May. 0.0343 0.0310 0.0326
18:01-19:00, Sun., 11 May. 0.0360 0.0311 0.0333
17:01-18:00, Sun., 11 May. 0.0365 0.0307 0.0331
16:01-17:00, Sun., 11 May. 0.0353 0.0301 0.0331
15:01-16:00, Sun., 11 May. 0.0370 0.0311 0.0334
14:01-15:00, Sun., 11 May. 0.0357 0.0314 0.0333
13:01-14:00, Sun., 11 May. 0.0358 0.0306 0.0336
12:01-13:00, Sun., 11 May. 0.0350 0.0312 0.0333
11:01-12:00, Sun., 11 May. 0.0352 0.0315 0.0333
10:01-11:00, Sun., 11 May. 0.0365 0.0307 0.0334
09:01-10:00, Sun., 11 May. 0.0357 0.0311 0.0334
08:01-09:00, Sun., 11 May. 0.0363 0.0321 0.0337
07:01-08:00, Sun., 11 May. 0.0363 0.0302 0.0339
06:01-07:00, Sun., 11 May. 0.0367 0.0318 0.0339
05:01-06:00, Sun., 11 May. 0.0374 0.0310 0.0340
04:01-05:00, Sun., 11 May. 0.0375 0.0315 0.0336
03:01-04:00, Sun., 11 May. 0.0361 0.0311 0.0336
02:01-03:00, Sun., 11 May. 0.0356 0.0318 0.0333
01:01-02:00, Sun., 11 May. 0.0356 0.0313 0.0335
00:01-01:00, Sun., 11 May. 0.0355 0.0306 0.0330
23:01-24:00, Sat., 10 May. 0.0359 0.0302 0.0333
22:01-23:00, Sat., 10 May. 0.0366 0.0308 0.0336
21:01-22:00, Sat., 10 May. 0.0356 0.0314 0.0337
20:01-21:00, Sat., 10 May. 0.0356 0.0308 0.0335
19:01-20:00, Sat., 10 May. 0.0354 0.0309 0.0333
18:01-19:00, Sat., 10 May. 0.0351 0.0306 0.0332
17:01-18:00, Sat., 10 May. 0.0352 0.0306 0.0331
16:01-17:00, Sat., 10 May. 0.0353 0.0308 0.0333
15:01-16:00, Sat., 10 May. 0.0360 0.0315 0.0336
14:01-15:00, Sat., 10 May. 0.0356 0.0308 0.0333
13:01-14:00, Sat., 10 May. 0.0349 0.0302 0.0330
12:01-13:00, Sat., 10 May. 0.0364 0.0312 0.0337
11:01-12:00, Sat., 10 May. 0.0367 0.0308 0.0345
10:01-11:00, Sat., 10 May. 0.0387 0.0320 0.0350
09:01-10:00, Sat., 10 May. 0.0391 0.0337 0.0358
08:01-09:00, Sat., 10 May. 0.0391 0.0343 0.0360
07:01-08:00, Sat., 10 May. 0.0376 0.0321 0.0350
06:01-07:00, Sat., 10 May. 0.0391 0.0332 0.0362
05:01-06:00, Sat., 10 May. 0.0407 0.0353 0.0373
04:01-05:00, Sat., 10 May. 0.0406 0.0357 0.0379
03:01-04:00, Sat., 10 May. 0.0397 0.0354 0.0377
02:01-03:00, Sat., 10 May. 0.0411 0.0363 0.0383
01:01-02:00, Sat., 10 May. 0.0416 0.0367 0.0388
00:01-01:00, Sat., 10 May. 0.0414 0.0360 0.0384