Measurement results by the hour (Koto) 28 Dec., 2020 - 3 Jan., 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
22:01-23:00, Sun., 03 Jan. 0.0402 0.0364 0.0382
21:01-22:00, Sun., 03 Jan. 0.0406 0.0357 0.0382
20:01-21:00, Sun., 03 Jan. 0.0402 0.0364 0.0384
19:01-20:00, Sun., 03 Jan. 0.0409 0.0360 0.0383
18:01-19:00, Sun., 03 Jan. 0.0411 0.0359 0.0382
17:01-18:00, Sun., 03 Jan. 0.0405 0.0366 0.0383
16:01-17:00, Sun., 03 Jan. 0.0406 0.0364 0.0386
15:01-16:00, Sun., 03 Jan. 0.0406 0.0360 0.0381
14:01-15:00, Sun., 03 Jan. 0.0403 0.0366 0.0383
13:01-14:00, Sun., 03 Jan. 0.0410 0.0356 0.0383
12:01-13:00, Sun., 03 Jan. 0.0407 0.0360 0.0385
11:01-12:00, Sun., 03 Jan. 0.0404 0.0361 0.0383
10:01-11:00, Sun., 03 Jan. 0.0398 0.0360 0.0381
09:01-10:00, Sun., 03 Jan. 0.0405 0.0357 0.0383
08:01-09:00, Sun., 03 Jan. 0.0419 0.0358 0.0381
07:01-08:00, Sun., 03 Jan. 0.0408 0.0354 0.0383
06:01-07:00, Sun., 03 Jan. 0.0402 0.0364 0.0384
05:01-06:00, Sun., 03 Jan. 0.0412 0.0362 0.0383
04:01-05:00, Sun., 03 Jan. 0.0403 0.0360 0.0383
03:01-04:00, Sun., 03 Jan. 0.0414 0.0362 0.0385
02:01-03:00, Sun., 03 Jan. 0.0400 0.0362 0.0383
01:01-02:00, Sun., 03 Jan. 0.0406 0.0365 0.0385
00:01-01:00, Sun., 03 Jan. 0.0408 0.0369 0.0385
22:01-23:00, Sat., 02 Jan. 0.0402 0.0363 0.0384
21:01-22:00, Sat., 02 Jan. 0.0401 0.0361 0.0383
20:01-21:00, Sat., 02 Jan. 0.0409 0.0363 0.0381
19:01-20:00, Sat., 02 Jan. 0.0409 0.0350 0.0384
18:01-19:00, Sat., 02 Jan. 0.0415 0.0361 0.0384
17:01-18:00, Sat., 02 Jan. 0.0403 0.0358 0.0382
16:01-17:00, Sat., 02 Jan. 0.0402 0.0360 0.0382
15:01-16:00, Sat., 02 Jan. 0.0404 0.0367 0.0382
14:01-15:00, Sat., 02 Jan. 0.0406 0.0353 0.0381
13:01-14:00, Sat., 02 Jan. 0.0412 0.0358 0.0385
12:01-13:00, Sat., 02 Jan. 0.0410 0.0366 0.0385
11:01-12:00, Sat., 02 Jan. 0.0410 0.0364 0.0388
10:01-11:00, Sat., 02 Jan. 0.0415 0.0366 0.0387
09:01-10:00, Sat., 02 Jan. 0.0407 0.0364 0.0387
08:01-09:00, Sat., 02 Jan. 0.0411 0.0371 0.0390
07:01-08:00, Sat., 02 Jan. 0.0412 0.0361 0.0387
06:01-07:00, Sat., 02 Jan. 0.0414 0.0356 0.0385
05:01-06:00, Sat., 02 Jan. 0.0402 0.0367 0.0385
04:01-05:00, Sat., 02 Jan. 0.0398 0.0364 0.0382
03:01-04:00, Sat., 02 Jan. 0.0404 0.0366 0.0384
02:01-03:00, Sat., 02 Jan. 0.0404 0.0361 0.0384
01:01-02:00, Sat., 02 Jan. 0.0402 0.0368 0.0384
00:01-01:00, Sat., 02 Jan. 0.0405 0.0360 0.0383
22:01-23:00, Fri., 01 Jan. 0.0402 0.0364 0.0381
21:01-22:00, Fri., 01 Jan. 0.0400 0.0357 0.0382
20:01-21:00, Fri., 01 Jan. 0.0406 0.0359 0.0383
19:01-20:00, Fri., 01 Jan. 0.0402 0.0356 0.0383
18:01-19:00, Fri., 01 Jan. 0.0397 0.0365 0.0383
17:01-18:00, Fri., 01 Jan. 0.0403 0.0347 0.0379
16:01-17:00, Fri., 01 Jan. 0.0406 0.0357 0.0383
15:01-16:00, Fri., 01 Jan. 0.0407 0.0364 0.0383
14:01-15:00, Fri., 01 Jan. 0.0400 0.0357 0.0381
13:01-14:00, Fri., 01 Jan. 0.0405 0.0359 0.0382
12:01-13:00, Fri., 01 Jan. 0.0417 0.0364 0.0385
11:01-12:00, Fri., 01 Jan. 0.0414 0.0364 0.0386
10:01-11:00, Fri., 01 Jan. 0.0399 0.0369 0.0385
09:01-10:00, Fri., 01 Jan. 0.0412 0.0360 0.0385
08:01-09:00, Fri., 01 Jan. 0.0402 0.0363 0.0384
07:01-08:00, Fri., 01 Jan. 0.0408 0.0367 0.0384
06:01-07:00, Fri., 01 Jan. 0.0407 0.0355 0.0384
05:01-06:00, Fri., 01 Jan. 0.0407 0.0367 0.0384
04:01-05:00, Fri., 01 Jan. 0.0422 0.0364 0.0385
03:01-04:00, Fri., 01 Jan. 0.0402 0.0360 0.0384
02:01-03:00, Fri., 01 Jan. 0.0412 0.0364 0.0385
01:01-02:00, Fri., 01 Jan. 0.0426 0.0361 0.0385
00:01-01:00, Fri., 01 Jan. 0.0414 0.0357 0.0384
22:01-23:00, Thu., 31 Dec. 0.0402 0.0358 0.0381
21:01-22:00, Thu., 31 Dec. 0.0405 0.0365 0.0382
20:01-21:00, Thu., 31 Dec. 0.0404 0.0365 0.0383
19:01-20:00, Thu., 31 Dec. 0.0405 0.0365 0.0381
18:01-19:00, Thu., 31 Dec. 0.0399 0.0358 0.0381
17:01-18:00, Thu., 31 Dec. 0.0406 0.0367 0.0382
16:01-17:00, Thu., 31 Dec. 0.0411 0.0357 0.0381
15:01-16:00, Thu., 31 Dec. 0.0412 0.0365 0.0385
14:01-15:00, Thu., 31 Dec. 0.0412 0.0356 0.0383
13:01-14:00, Thu., 31 Dec. 0.0402 0.0355 0.0382
12:01-13:00, Thu., 31 Dec. 0.0407 0.0364 0.0384
11:01-12:00, Thu., 31 Dec. 0.0413 0.0362 0.0383
10:01-11:00, Thu., 31 Dec. 0.0404 0.0366 0.0383
09:01-10:00, Thu., 31 Dec. 0.0405 0.0363 0.0386
08:01-09:00, Thu., 31 Dec. 0.0412 0.0367 0.0386
07:01-08:00, Thu., 31 Dec. 0.0416 0.0362 0.0385
06:01-07:00, Thu., 31 Dec. 0.0409 0.0362 0.0388
05:01-06:00, Thu., 31 Dec. 0.0410 0.0357 0.0386
04:01-05:00, Thu., 31 Dec. 0.0404 0.0351 0.0388
03:01-04:00, Thu., 31 Dec. 0.0409 0.0361 0.0388
02:01-03:00, Thu., 31 Dec. 0.0409 0.0361 0.0385
01:01-02:00, Thu., 31 Dec. 0.0409 0.0358 0.0388
00:01-01:00, Thu., 31 Dec. 0.0412 0.0367 0.0386
22:01-23:00, Wed., 30 Dec. 0.0409 0.0370 0.0387
21:01-22:00, Wed., 30 Dec. 0.0412 0.0371 0.0390
20:01-21:00, Wed., 30 Dec. 0.0409 0.0368 0.0388
19:01-20:00, Wed., 30 Dec. 0.0413 0.0373 0.0388
18:01-19:00, Wed., 30 Dec. 0.0407 0.0362 0.0386
17:01-18:00, Wed., 30 Dec. 0.0402 0.0355 0.0381
16:01-17:00, Wed., 30 Dec. 0.0409 0.0363 0.0386
15:01-16:00, Wed., 30 Dec. 0.0405 0.0364 0.0387
14:01-15:00, Wed., 30 Dec. 0.0416 0.0364 0.0390
13:01-14:00, Wed., 30 Dec. 0.0408 0.0368 0.0388
12:01-13:00, Wed., 30 Dec. 0.0411 0.0374 0.0391
11:01-12:00, Wed., 30 Dec. 0.0431 0.0378 0.0405
10:01-11:00, Wed., 30 Dec. 0.0482 0.0409 0.0440
09:01-10:00, Wed., 30 Dec. 0.0463 0.0412 0.0441
08:01-09:00, Wed., 30 Dec. 0.0446 0.0382 0.0415
07:01-08:00, Wed., 30 Dec. 0.0424 0.0367 0.0393
06:01-07:00, Wed., 30 Dec. 0.0405 0.0368 0.0383
05:01-06:00, Wed., 30 Dec. 0.0402 0.0364 0.0383
04:01-05:00, Wed., 30 Dec. 0.0402 0.0364 0.0384
03:01-04:00, Wed., 30 Dec. 0.0407 0.0352 0.0385
02:01-03:00, Wed., 30 Dec. 0.0406 0.0363 0.0384
01:01-02:00, Wed., 30 Dec. 0.0405 0.0357 0.0382
00:01-01:00, Wed., 30 Dec. 0.0405 0.0359 0.0383
22:01-23:00, Tue., 29 Dec. 0.0403 0.0365 0.0384
21:01-22:00, Tue., 29 Dec. 0.0416 0.0369 0.0388
20:01-21:00, Tue., 29 Dec. 0.0405 0.0361 0.0388
19:01-20:00, Tue., 29 Dec. 0.0415 0.0368 0.0387
18:01-19:00, Tue., 29 Dec. 0.0405 0.0365 0.0385
17:01-18:00, Tue., 29 Dec. 0.0405 0.0362 0.0386
16:01-17:00, Tue., 29 Dec. 0.0414 0.0357 0.0385
15:01-16:00, Tue., 29 Dec. 0.0402 0.0367 0.0386
14:01-15:00, Tue., 29 Dec. 0.0410 0.0367 0.0388
13:01-14:00, Tue., 29 Dec. 0.0407 0.0365 0.0387
12:01-13:00, Tue., 29 Dec. 0.0400 0.0364 0.0385
11:01-12:00, Tue., 29 Dec. 0.0406 0.0360 0.0386
10:01-11:00, Tue., 29 Dec. 0.0405 0.0357 0.0384
09:01-10:00, Tue., 29 Dec. 0.0408 0.0363 0.0387
08:01-09:00, Tue., 29 Dec. 0.0419 0.0360 0.0387
07:01-08:00, Tue., 29 Dec. 0.0408 0.0367 0.0387
06:01-07:00, Tue., 29 Dec. 0.0402 0.0364 0.0387
05:01-06:00, Tue., 29 Dec. 0.0409 0.0363 0.0386
04:01-05:00, Tue., 29 Dec. 0.0415 0.0368 0.0386
03:01-04:00, Tue., 29 Dec. 0.0404 0.0362 0.0383
02:01-03:00, Tue., 29 Dec. 0.0413 0.0360 0.0385
01:01-02:00, Tue., 29 Dec. 0.0413 0.0358 0.0385
00:01-01:00, Tue., 29 Dec. 0.0405 0.0359 0.0386
23:01-24:00, Mon., 28 Dec. 0.0409 0.0360 0.0388
22:01-23:00, Mon., 28 Dec. 0.0405 0.0353 0.0383
21:01-22:00, Mon., 28 Dec. 0.0409 0.0364 0.0386
20:01-21:00, Mon., 28 Dec. 0.0409 0.0363 0.0383
19:01-20:00, Mon., 28 Dec. 0.0398 0.0354 0.0383
18:01-19:00, Mon., 28 Dec. 0.0407 0.0365 0.0384
17:01-18:00, Mon., 28 Dec. 0.0406 0.0360 0.0384
16:01-17:00, Mon., 28 Dec. 0.0405 0.0360 0.0383
15:01-16:00, Mon., 28 Dec. 0.0407 0.0365 0.0384
14:01-15:00, Mon., 28 Dec. 0.0409 0.0363 0.0384
13:01-14:00, Mon., 28 Dec. 0.0406 0.0366 0.0385
12:01-13:00, Mon., 28 Dec. 0.0402 0.0359 0.0385
11:01-12:00, Mon., 28 Dec. 0.0405 0.0358 0.0383
10:01-11:00, Mon., 28 Dec. 0.0403 0.0356 0.0385
09:01-10:00, Mon., 28 Dec. 0.0407 0.0368 0.0387
08:01-09:00, Mon., 28 Dec. 0.0412 0.0367 0.0388
07:01-08:00, Mon., 28 Dec. 0.0409 0.0353 0.0387
06:01-07:00, Mon., 28 Dec. 0.0406 0.0362 0.0385
05:01-06:00, Mon., 28 Dec. 0.0405 0.0369 0.0387
04:01-05:00, Mon., 28 Dec. 0.0409 0.0364 0.0387
03:01-04:00, Mon., 28 Dec. 0.0416 0.0367 0.0385
02:01-03:00, Mon., 28 Dec. 0.0405 0.0364 0.0383
01:01-02:00, Mon., 28 Dec. 0.0404 0.0367 0.0386
00:01-01:00, Mon., 28 Dec. 0.0410 0.0360 0.0385