Measurement results by the hour (Koto) 12 Apr., 2021 - 18 Apr., 2021

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, Sun., 18 Apr. 0.0395 0.0359 0.0374
22:01-23:00, Sun., 18 Apr. 0.0398 0.0350 0.0372
21:01-22:00, Sun., 18 Apr. 0.0405 0.0341 0.0375
20:01-21:00, Sun., 18 Apr. 0.0391 0.0357 0.0374
19:01-20:00, Sun., 18 Apr. 0.0388 0.0352 0.0372
18:01-19:00, Sun., 18 Apr. 0.0397 0.0350 0.0373
17:01-18:00, Sun., 18 Apr. 0.0391 0.0348 0.0373
16:01-17:00, Sun., 18 Apr. 0.0392 0.0354 0.0374
15:01-16:00, Sun., 18 Apr. 0.0406 0.0357 0.0377
14:01-15:00, Sun., 18 Apr. 0.0404 0.0343 0.0375
13:01-14:00, Sun., 18 Apr. 0.0396 0.0350 0.0375
12:01-13:00, Sun., 18 Apr. 0.0395 0.0349 0.0372
11:01-12:00, Sun., 18 Apr. 0.0399 0.0350 0.0373
10:01-11:00, Sun., 18 Apr. 0.0391 0.0353 0.0374
09:01-10:00, Sun., 18 Apr. 0.0401 0.0353 0.0375
08:01-09:00, Sun., 18 Apr. 0.0388 0.0352 0.0371
07:01-08:00, Sun., 18 Apr. 0.0398 0.0355 0.0375
06:01-07:00, Sun., 18 Apr. 0.0390 0.0351 0.0372
05:01-06:00, Sun., 18 Apr. 0.0391 0.0349 0.0372
04:01-05:00, Sun., 18 Apr. 0.0400 0.0356 0.0374
03:01-04:00, Sun., 18 Apr. 0.0402 0.0347 0.0371
02:01-03:00, Sun., 18 Apr. 0.0406 0.0356 0.0380
01:01-02:00, Sun., 18 Apr. 0.0443 0.0381 0.0407
00:01-01:00, Sun., 18 Apr. 0.0455 0.0405 0.0433
23:01-24:00, Sat., 17 Apr. 0.0450 0.0402 0.0425
22:01-23:00, Sat., 17 Apr. 0.0460 0.0396 0.0423
21:01-22:00, Sat., 17 Apr. 0.0443 0.0384 0.0404
20:01-21:00, Sat., 17 Apr. 0.0444 0.0384 0.0406
19:01-20:00, Sat., 17 Apr. 0.0422 0.0375 0.0400
18:01-19:00, Sat., 17 Apr. 0.0418 0.0373 0.0392
17:01-18:00, Sat., 17 Apr. 0.0417 0.0371 0.0394
16:01-17:00, Sat., 17 Apr. 0.0414 0.0361 0.0386
15:01-16:00, Sat., 17 Apr. 0.0401 0.0363 0.0378
14:01-15:00, Sat., 17 Apr. 0.0407 0.0355 0.0376
13:01-14:00, Sat., 17 Apr. 0.0395 0.0349 0.0373
12:01-13:00, Sat., 17 Apr. 0.0394 0.0346 0.0372
11:01-12:00, Sat., 17 Apr. 0.0389 0.0343 0.0369
10:01-11:00, Sat., 17 Apr. 0.0404 0.0355 0.0374
09:01-10:00, Sat., 17 Apr. 0.0395 0.0347 0.0370
08:01-09:00, Sat., 17 Apr. 0.0388 0.0352 0.0371
07:01-08:00, Sat., 17 Apr. 0.0390 0.0347 0.0372
06:01-07:00, Sat., 17 Apr. 0.0389 0.0351 0.0370
05:01-06:00, Sat., 17 Apr. 0.0395 0.0349 0.0372
04:01-05:00, Sat., 17 Apr. 0.0388 0.0347 0.0371
03:01-04:00, Sat., 17 Apr. 0.0399 0.0350 0.0370
02:01-03:00, Sat., 17 Apr. 0.0398 0.0350 0.0372
01:01-02:00, Sat., 17 Apr. 0.0397 0.0349 0.0372
00:01-01:00, Sat., 17 Apr. 0.0385 0.0346 0.0370
23:01-24:00, Fri., 16 Apr. 0.0392 0.0353 0.0372
22:01-23:00, Fri., 16 Apr. 0.0391 0.0346 0.0370
21:01-22:00, Fri., 16 Apr. 0.0393 0.0348 0.0370
20:01-21:00, Fri., 16 Apr. 0.0387 0.0350 0.0371
19:01-20:00, Fri., 16 Apr. 0.0391 0.0345 0.0371
18:01-19:00, Fri., 16 Apr. 0.0395 0.0345 0.0371
17:01-18:00, Fri., 16 Apr. 0.0385 0.0352 0.0369
16:01-17:00, Fri., 16 Apr. 0.0387 0.0350 0.0371
15:01-16:00, Fri., 16 Apr. 0.0390 0.0345 0.0367
14:01-15:00, Fri., 16 Apr. 0.0393 0.0348 0.0369
13:01-14:00, Fri., 16 Apr. 0.0393 0.0350 0.0372
12:01-13:00, Fri., 16 Apr. 0.0384 0.0341 0.0368
11:01-12:00, Fri., 16 Apr. 0.0392 0.0344 0.0369
10:01-11:00, Fri., 16 Apr. 0.0391 0.0352 0.0372
09:01-10:00, Fri., 16 Apr. 0.0391 0.0350 0.0370
08:01-09:00, Fri., 16 Apr. 0.0399 0.0348 0.0371
07:01-08:00, Fri., 16 Apr. 0.0386 0.0350 0.0372
06:01-07:00, Fri., 16 Apr. 0.0401 0.0349 0.0371
05:01-06:00, Fri., 16 Apr. 0.0395 0.0353 0.0371
04:01-05:00, Fri., 16 Apr. 0.0393 0.0345 0.0369
03:01-04:00, Fri., 16 Apr. 0.0386 0.0349 0.0370
02:01-03:00, Fri., 16 Apr. 0.0388 0.0351 0.0370
01:01-02:00, Fri., 16 Apr. 0.0391 0.0353 0.0372
00:01-01:00, Fri., 16 Apr. 0.0391 0.0353 0.0370
23:01-24:00, Thu., 15 Apr. 0.0387 0.0349 0.0370
22:01-23:00, Thu., 15 Apr. 0.0394 0.0336 0.0369
21:01-22:00, Thu., 15 Apr. 0.0398 0.0350 0.0371
20:01-21:00, Thu., 15 Apr. 0.0397 0.0356 0.0370
19:01-20:00, Thu., 15 Apr. 0.0396 0.0347 0.0370
18:01-19:00, Thu., 15 Apr. 0.0391 0.0343 0.0372
17:01-18:00, Thu., 15 Apr. 0.0389 0.0353 0.0371
16:01-17:00, Thu., 15 Apr. 0.0392 0.0349 0.0371
15:01-16:00, Thu., 15 Apr. 0.0390 0.0347 0.0371
14:01-15:00, Thu., 15 Apr. 0.0388 0.0353 0.0372
13:01-14:00, Thu., 15 Apr. 0.0391 0.0350 0.0371
12:01-13:00, Thu., 15 Apr. 0.0391 0.0348 0.0370
11:01-12:00, Thu., 15 Apr. 0.0405 0.0350 0.0371
10:01-11:00, Thu., 15 Apr. 0.0390 0.0355 0.0370
09:01-10:00, Thu., 15 Apr. 0.0389 0.0349 0.0369
08:01-09:00, Thu., 15 Apr. 0.0395 0.0348 0.0369
07:01-08:00, Thu., 15 Apr. 0.0406 0.0340 0.0369
06:01-07:00, Thu., 15 Apr. 0.0393 0.0350 0.0370
05:01-06:00, Thu., 15 Apr. 0.0393 0.0352 0.0371
04:01-05:00, Thu., 15 Apr. 0.0391 0.0347 0.0369
03:01-04:00, Thu., 15 Apr. 0.0395 0.0344 0.0369
02:01-03:00, Thu., 15 Apr. 0.0393 0.0350 0.0372
01:01-02:00, Thu., 15 Apr. 0.0409 0.0361 0.0383
00:01-01:00, Thu., 15 Apr. 0.0453 0.0391 0.0418
23:01-24:00, Wed., 14 Apr. 0.0473 0.0418 0.0447
22:01-23:00, Wed., 14 Apr. 0.0468 0.0375 0.0425
21:01-22:00, Wed., 14 Apr. 0.0475 0.0381 0.0426
20:01-21:00, Wed., 14 Apr. 0.0499 0.0420 0.0464
19:01-20:00, Wed., 14 Apr. 0.0441 0.0394 0.0420
18:01-19:00, Wed., 14 Apr. 0.0429 0.0363 0.0399
17:01-18:00, Wed., 14 Apr. 0.0405 0.0352 0.0375
16:01-17:00, Wed., 14 Apr. 0.0401 0.0350 0.0379
15:01-16:00, Wed., 14 Apr. 0.0401 0.0356 0.0378
14:01-15:00, Wed., 14 Apr. 0.0419 0.0369 0.0395
13:01-14:00, Wed., 14 Apr. 0.0446 0.0394 0.0417
12:01-13:00, Wed., 14 Apr. 0.0450 0.0397 0.0424
11:01-12:00, Wed., 14 Apr. 0.0447 0.0404 0.0424
10:01-11:00, Wed., 14 Apr. 0.0439 0.0395 0.0420
09:01-10:00, Wed., 14 Apr. 0.0440 0.0382 0.0411
08:01-09:00, Wed., 14 Apr. 0.0414 0.0363 0.0394
07:01-08:00, Wed., 14 Apr. 0.0409 0.0371 0.0392
06:01-07:00, Wed., 14 Apr. 0.0400 0.0362 0.0383
05:01-06:00, Wed., 14 Apr. 0.0395 0.0354 0.0378
04:01-05:00, Wed., 14 Apr. 0.0403 0.0350 0.0376
03:01-04:00, Wed., 14 Apr. 0.0393 0.0352 0.0373
02:01-03:00, Wed., 14 Apr. 0.0395 0.0349 0.0376
01:01-02:00, Wed., 14 Apr. 0.0402 0.0347 0.0374
00:01-01:00, Wed., 14 Apr. 0.0398 0.0353 0.0377
23:01-24:00, Tue., 13 Apr. 0.0402 0.0356 0.0383
22:01-23:00, Tue., 13 Apr. 0.0418 0.0358 0.0390
21:01-22:00, Tue., 13 Apr. 0.0401 0.0354 0.0375
20:01-21:00, Tue., 13 Apr. 0.0398 0.0353 0.0377
19:01-20:00, Tue., 13 Apr. 0.0400 0.0352 0.0376
18:01-19:00, Tue., 13 Apr. 0.0394 0.0355 0.0377
17:01-18:00, Tue., 13 Apr. 0.0402 0.0349 0.0377
16:01-17:00, Tue., 13 Apr. 0.0396 0.0348 0.0373
15:01-16:00, Tue., 13 Apr. 0.0395 0.0351 0.0374
14:01-15:00, Tue., 13 Apr. 0.0404 0.0356 0.0375
13:01-14:00, Tue., 13 Apr. 0.0397 0.0354 0.0377
12:01-13:00, Tue., 13 Apr. 0.0409 0.0352 0.0374
11:01-12:00, Tue., 13 Apr. 0.0398 0.0350 0.0374
10:01-11:00, Tue., 13 Apr. 0.0401 0.0357 0.0378
09:01-10:00, Tue., 13 Apr. 0.0406 0.0357 0.0377
08:01-09:00, Tue., 13 Apr. 0.0397 0.0357 0.0372
07:01-08:00, Tue., 13 Apr. 0.0391 0.0352 0.0374
06:01-07:00, Tue., 13 Apr. 0.0399 0.0352 0.0375
05:01-06:00, Tue., 13 Apr. 0.0405 0.0357 0.0376
04:01-05:00, Tue., 13 Apr. 0.0390 0.0347 0.0373
03:01-04:00, Tue., 13 Apr. 0.0395 0.0354 0.0374
02:01-03:00, Tue., 13 Apr. 0.0395 0.0359 0.0375
01:01-02:00, Tue., 13 Apr. 0.0393 0.0346 0.0374
00:01-01:00, Tue., 13 Apr. 0.0390 0.0354 0.0375
23:01-24:00, Mon., 12 Apr. 0.0395 0.0351 0.0375
22:01-23:00, Mon., 12 Apr. 0.0391 0.0350 0.0373
21:01-22:00, Mon., 12 Apr. 0.0392 0.0354 0.0371
20:01-21:00, Mon., 12 Apr. 0.0398 0.0348 0.0372
19:01-20:00, Mon., 12 Apr. 0.0391 0.0353 0.0372
18:01-19:00, Mon., 12 Apr. 0.0391 0.0347 0.0374
17:01-18:00, Mon., 12 Apr. 0.0393 0.0362 0.0375
16:01-17:00, Mon., 12 Apr. 0.0397 0.0353 0.0371
15:01-16:00, Mon., 12 Apr. 0.0398 0.0359 0.0374
14:01-15:00, Mon., 12 Apr. 0.0396 0.0356 0.0376
13:01-14:00, Mon., 12 Apr. 0.0396 0.0357 0.0375
12:01-13:00, Mon., 12 Apr. 0.0402 0.0356 0.0375
11:01-12:00, Mon., 12 Apr. 0.0411 0.0353 0.0374
10:01-11:00, Mon., 12 Apr. 0.0394 0.0357 0.0374
09:01-10:00, Mon., 12 Apr. 0.0397 0.0351 0.0374
08:01-09:00, Mon., 12 Apr. 0.0402 0.0347 0.0376
07:01-08:00, Mon., 12 Apr. 0.0389 0.0358 0.0374
06:01-07:00, Mon., 12 Apr. 0.0398 0.0362 0.0379
05:01-06:00, Mon., 12 Apr. 0.0398 0.0356 0.0376
04:01-05:00, Mon., 12 Apr. 0.0398 0.0356 0.0377
03:01-04:00, Mon., 12 Apr. 0.0403 0.0358 0.0378
02:01-03:00, Mon., 12 Apr. 0.0396 0.0347 0.0374
01:01-02:00, Mon., 12 Apr. 0.0397 0.0356 0.0374
00:01-01:00, Mon., 12 Apr. 0.0400 0.0350 0.0375