Measurement results by the hour (Koto) 1 Feb., 2021 - 7 Feb., 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., 07 Feb. 0.0396 0.0363 0.0381
22:01-23:00, Sun., 07 Feb. 0.0406 0.0360 0.0381
21:01-22:00, Sun., 07 Feb. 0.0399 0.0357 0.0379
20:01-21:00, Sun., 07 Feb. 0.0407 0.0359 0.0380
19:01-20:00, Sun., 07 Feb. 0.0399 0.0364 0.0383
18:01-19:00, Sun., 07 Feb. 0.0401 0.0356 0.0380
17:01-18:00, Sun., 07 Feb. 0.0403 0.0356 0.0376
16:01-17:00, Sun., 07 Feb. 0.0396 0.0350 0.0377
15:01-16:00, Sun., 07 Feb. 0.0402 0.0357 0.0378
14:01-15:00, Sun., 07 Feb. 0.0401 0.0360 0.0376
13:01-14:00, Sun., 07 Feb. 0.0399 0.0349 0.0376
12:01-13:00, Sun., 07 Feb. 0.0398 0.0350 0.0378
11:01-12:00, Sun., 07 Feb. 0.0402 0.0364 0.0378
10:01-11:00, Sun., 07 Feb. 0.0405 0.0353 0.0379
09:01-10:00, Sun., 07 Feb. 0.0409 0.0361 0.0380
08:01-09:00, Sun., 07 Feb. 0.0403 0.0354 0.0381
07:01-08:00, Sun., 07 Feb. 0.0404 0.0361 0.0378
06:01-07:00, Sun., 07 Feb. 0.0403 0.0357 0.0380
05:01-06:00, Sun., 07 Feb. 0.0395 0.0358 0.0379
04:01-05:00, Sun., 07 Feb. 0.0401 0.0361 0.0379
03:01-04:00, Sun., 07 Feb. 0.0399 0.0362 0.0379
02:01-03:00, Sun., 07 Feb. 0.0401 0.0361 0.0381
01:01-02:00, Sun., 07 Feb. 0.0400 0.0353 0.0376
00:01-01:00, Sun., 07 Feb. 0.0405 0.0357 0.0381
23:01-24:00, Sat., 06 Feb. 0.0395 0.0357 0.0379
22:01-23:00, Sat., 06 Feb. 0.0407 0.0351 0.0377
21:01-22:00, Sat., 06 Feb. 0.0398 0.0360 0.0376
20:01-21:00, Sat., 06 Feb. 0.0398 0.0350 0.0376
19:01-20:00, Sat., 06 Feb. 0.0394 0.0357 0.0377
18:01-19:00, Sat., 06 Feb. 0.0393 0.0345 0.0376
17:01-18:00, Sat., 06 Feb. 0.0398 0.0356 0.0375
16:01-17:00, Sat., 06 Feb. 0.0397 0.0354 0.0375
15:01-16:00, Sat., 06 Feb. 0.0397 0.0352 0.0376
14:01-15:00, Sat., 06 Feb. 0.0394 0.0360 0.0377
13:01-14:00, Sat., 06 Feb. 0.0395 0.0353 0.0375
12:01-13:00, Sat., 06 Feb. 0.0405 0.0360 0.0379
11:01-12:00, Sat., 06 Feb. 0.0402 0.0359 0.0379
10:01-11:00, Sat., 06 Feb. 0.0406 0.0359 0.0380
09:01-10:00, Sat., 06 Feb. 0.0398 0.0358 0.0378
08:01-09:00, Sat., 06 Feb. 0.0405 0.0358 0.0381
07:01-08:00, Sat., 06 Feb. 0.0401 0.0345 0.0380
06:01-07:00, Sat., 06 Feb. 0.0412 0.0360 0.0383
05:01-06:00, Sat., 06 Feb. 0.0405 0.0358 0.0380
04:01-05:00, Sat., 06 Feb. 0.0402 0.0357 0.0378
03:01-04:00, Sat., 06 Feb. 0.0396 0.0362 0.0378
02:01-03:00, Sat., 06 Feb. 0.0412 0.0354 0.0376
01:01-02:00, Sat., 06 Feb. 0.0395 0.0357 0.0377
00:01-01:00, Sat., 06 Feb. 0.0399 0.0353 0.0376
23:01-24:00, Fri., 05 Feb. 0.0394 0.0355 0.0375
22:01-23:00, Fri., 05 Feb. 0.0397 0.0354 0.0374
21:01-22:00, Fri., 05 Feb. 0.0396 0.0355 0.0375
20:01-21:00, Fri., 05 Feb. 0.0397 0.0346 0.0375
19:01-20:00, Fri., 05 Feb. 0.0400 0.0358 0.0375
18:01-19:00, Fri., 05 Feb. 0.0409 0.0355 0.0374
17:01-18:00, Fri., 05 Feb. 0.0392 0.0347 0.0373
16:01-17:00, Fri., 05 Feb. 0.0392 0.0349 0.0375
15:01-16:00, Fri., 05 Feb. 0.0394 0.0344 0.0374
14:01-15:00, Fri., 05 Feb. 0.0399 0.0350 0.0374
13:01-14:00, Fri., 05 Feb. 0.0393 0.0353 0.0374
12:01-13:00, Fri., 05 Feb. 0.0396 0.0358 0.0378
11:01-12:00, Fri., 05 Feb. 0.0397 0.0354 0.0375
10:01-11:00, Fri., 05 Feb. 0.0393 0.0360 0.0376
09:01-10:00, Fri., 05 Feb. 0.0397 0.0357 0.0376
08:01-09:00, Fri., 05 Feb. 0.0409 0.0349 0.0374
07:01-08:00, Fri., 05 Feb. 0.0395 0.0357 0.0377
06:01-07:00, Fri., 05 Feb. 0.0401 0.0340 0.0376
05:01-06:00, Fri., 05 Feb. 0.0395 0.0353 0.0376
04:01-05:00, Fri., 05 Feb. 0.0391 0.0361 0.0376
03:01-04:00, Fri., 05 Feb. 0.0396 0.0351 0.0373
02:01-03:00, Fri., 05 Feb. 0.0402 0.0350 0.0375
01:01-02:00, Fri., 05 Feb. 0.0398 0.0359 0.0374
00:01-01:00, Fri., 05 Feb. 0.0400 0.0356 0.0375
23:01-24:00, Thu., 04 Feb. 0.0393 0.0350 0.0374
22:01-23:00, Thu., 04 Feb. 0.0399 0.0360 0.0378
21:01-22:00, Thu., 04 Feb. 0.0389 0.0353 0.0375
20:01-21:00, Thu., 04 Feb. 0.0405 0.0359 0.0375
19:01-20:00, Thu., 04 Feb. 0.0398 0.0358 0.0376
18:01-19:00, Thu., 04 Feb. 0.0397 0.0357 0.0375
17:01-18:00, Thu., 04 Feb. 0.0402 0.0357 0.0376
16:01-17:00, Thu., 04 Feb. 0.0398 0.0353 0.0375
15:01-16:00, Thu., 04 Feb. 0.0392 0.0356 0.0374
14:01-15:00, Thu., 04 Feb. 0.0398 0.0355 0.0380
13:01-14:00, Thu., 04 Feb. 0.0395 0.0347 0.0378
12:01-13:00, Thu., 04 Feb. 0.0401 0.0360 0.0374
11:01-12:00, Thu., 04 Feb. 0.0406 0.0351 0.0376
10:01-11:00, Thu., 04 Feb. 0.0396 0.0357 0.0377
09:01-10:00, Thu., 04 Feb. 0.0395 0.0349 0.0376
08:01-09:00, Thu., 04 Feb. 0.0402 0.0357 0.0375
07:01-08:00, Thu., 04 Feb. 0.0407 0.0346 0.0377
06:01-07:00, Thu., 04 Feb. 0.0398 0.0357 0.0375
05:01-06:00, Thu., 04 Feb. 0.0395 0.0361 0.0378
04:01-05:00, Thu., 04 Feb. 0.0398 0.0350 0.0377
03:01-04:00, Thu., 04 Feb. 0.0403 0.0358 0.0377
02:01-03:00, Thu., 04 Feb. 0.0407 0.0349 0.0376
01:01-02:00, Thu., 04 Feb. 0.0392 0.0354 0.0375
00:01-01:00, Thu., 04 Feb. 0.0394 0.0354 0.0376
23:01-24:00, Wed., 03 Feb. 0.0402 0.0357 0.0376
22:01-23:00, Wed., 03 Feb. 0.0394 0.0353 0.0374
21:01-22:00, Wed., 03 Feb. 0.0395 0.0352 0.0376
20:01-21:00, Wed., 03 Feb. 0.0392 0.0350 0.0375
19:01-20:00, Wed., 03 Feb. 0.0394 0.0345 0.0374
18:01-19:00, Wed., 03 Feb. 0.0389 0.0353 0.0374
17:01-18:00, Wed., 03 Feb. 0.0405 0.0358 0.0375
16:01-17:00, Wed., 03 Feb. 0.0397 0.0350 0.0375
15:01-16:00, Wed., 03 Feb. 0.0398 0.0348 0.0375
14:01-15:00, Wed., 03 Feb. 0.0394 0.0354 0.0376
13:01-14:00, Wed., 03 Feb. 0.0402 0.0356 0.0377
12:01-13:00, Wed., 03 Feb. 0.0402 0.0351 0.0375
11:01-12:00, Wed., 03 Feb. 0.0392 0.0343 0.0371
10:01-11:00, Wed., 03 Feb. 0.0400 0.0357 0.0376
09:01-10:00, Wed., 03 Feb. 0.0398 0.0360 0.0378
08:01-09:00, Wed., 03 Feb. 0.0402 0.0347 0.0378
07:01-08:00, Wed., 03 Feb. 0.0402 0.0355 0.0376
06:01-07:00, Wed., 03 Feb. 0.0399 0.0352 0.0378
05:01-06:00, Wed., 03 Feb. 0.0399 0.0356 0.0377
04:01-05:00, Wed., 03 Feb. 0.0409 0.0347 0.0379
03:01-04:00, Wed., 03 Feb. 0.0395 0.0359 0.0376
02:01-03:00, Wed., 03 Feb. 0.0397 0.0360 0.0377
01:01-02:00, Wed., 03 Feb. 0.0397 0.0353 0.0379
00:01-01:00, Wed., 03 Feb. 0.0405 0.0364 0.0381
23:01-24:00, Tue., 02 Feb. 0.0400 0.0350 0.0379
22:01-23:00, Tue., 02 Feb. 0.0397 0.0364 0.0380
21:01-22:00, Tue., 02 Feb. 0.0401 0.0350 0.0380
20:01-21:00, Tue., 02 Feb. 0.0407 0.0363 0.0381
19:01-20:00, Tue., 02 Feb. 0.0409 0.0363 0.0380
18:01-19:00, Tue., 02 Feb. 0.0405 0.0359 0.0381
17:01-18:00, Tue., 02 Feb. 0.0397 0.0351 0.0378
16:01-17:00, Tue., 02 Feb. 0.0401 0.0355 0.0377
15:01-16:00, Tue., 02 Feb. 0.0401 0.0349 0.0375
14:01-15:00, Tue., 02 Feb. 0.0399 0.0353 0.0374
13:01-14:00, Tue., 02 Feb. 0.0400 0.0354 0.0375
12:01-13:00, Tue., 02 Feb. 0.0394 0.0352 0.0376
11:01-12:00, Tue., 02 Feb. 0.0399 0.0353 0.0379
10:01-11:00, Tue., 02 Feb. 0.0409 0.0365 0.0384
09:01-10:00, Tue., 02 Feb. 0.0419 0.0365 0.0398
08:01-09:00, Tue., 02 Feb. 0.0457 0.0378 0.0423
07:01-08:00, Tue., 02 Feb. 0.0484 0.0428 0.0457
06:01-07:00, Tue., 02 Feb. 0.0486 0.0443 0.0467
05:01-06:00, Tue., 02 Feb. 0.0507 0.0454 0.0473
04:01-05:00, Tue., 02 Feb. 0.0476 0.0377 0.0418
03:01-04:00, Tue., 02 Feb. 0.0412 0.0362 0.0383
02:01-03:00, Tue., 02 Feb. 0.0398 0.0361 0.0379
01:01-02:00, Tue., 02 Feb. 0.0398 0.0359 0.0376
00:01-01:00, Tue., 02 Feb. 0.0394 0.0353 0.0375
23:01-24:00, Mon., 01 Feb. 0.0398 0.0354 0.0375
22:01-23:00, Mon., 01 Feb. 0.0391 0.0353 0.0376
21:01-22:00, Mon., 01 Feb. 0.0395 0.0354 0.0376
20:01-21:00, Mon., 01 Feb. 0.0391 0.0350 0.0374
19:01-20:00, Mon., 01 Feb. 0.0396 0.0351 0.0379
18:01-19:00, Mon., 01 Feb. 0.0395 0.0358 0.0377
17:01-18:00, Mon., 01 Feb. 0.0390 0.0350 0.0375
16:01-17:00, Mon., 01 Feb. 0.0400 0.0353 0.0379
15:01-16:00, Mon., 01 Feb. 0.0398 0.0358 0.0376
14:01-15:00, Mon., 01 Feb. 0.0402 0.0358 0.0379
13:01-14:00, Mon., 01 Feb. 0.0409 0.0357 0.0380
12:01-13:00, Mon., 01 Feb. 0.0395 0.0353 0.0379
11:01-12:00, Mon., 01 Feb. 0.0401 0.0363 0.0381
10:01-11:00, Mon., 01 Feb. 0.0406 0.0363 0.0380
09:01-10:00, Mon., 01 Feb. 0.0407 0.0363 0.0380
08:01-09:00, Mon., 01 Feb. 0.0407 0.0355 0.0381
07:01-08:00, Mon., 01 Feb. 0.0407 0.0355 0.0381
06:01-07:00, Mon., 01 Feb. 0.0406 0.0358 0.0382
05:01-06:00, Mon., 01 Feb. 0.0401 0.0365 0.0381
04:01-05:00, Mon., 01 Feb. 0.0405 0.0360 0.0380
03:01-04:00, Mon., 01 Feb. 0.0403 0.0356 0.0377
02:01-03:00, Mon., 01 Feb. 0.0400 0.0359 0.0377
01:01-02:00, Mon., 01 Feb. 0.0399 0.0360 0.0378
00:01-01:00, Mon., 01 Feb. 0.0397 0.0360 0.0379