Measurement results by the hour (Chofu) 17 Dec., 2012 - 23 Dec., 2012

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., 23 Dec. 0.0392 0.0342 0.0361
22:01-23:00, Sun., 23 Dec. 0.0386 0.0347 0.0362
21:01-22:00, Sun., 23 Dec. 0.0386 0.0337 0.0358
20:01-21:00, Sun., 23 Dec. 0.0377 0.0340 0.0359
19:01-20:00, Sun., 23 Dec. 0.0378 0.0327 0.0356
18:01-19:00, Sun., 23 Dec. 0.0370 0.0332 0.0357
17:01-18:00, Sun., 23 Dec. 0.0370 0.0335 0.0355
16:01-17:00, Sun., 23 Dec. 0.0382 0.0338 0.0357
15:01-16:00, Sun., 23 Dec. 0.0373 0.0331 0.0354
14:01-15:00, Sun., 23 Dec. 0.0369 0.0334 0.0355
13:01-14:00, Sun., 23 Dec. 0.0374 0.0333 0.0357
12:01-13:00, Sun., 23 Dec. 0.0377 0.0343 0.0358
11:01-12:00, Sun., 23 Dec. 0.0380 0.0334 0.0357
10:01-11:00, Sun., 23 Dec. 0.0378 0.0328 0.0356
09:01-10:00, Sun., 23 Dec. 0.0392 0.0333 0.0357
08:01-09:00, Sun., 23 Dec. 0.0388 0.0331 0.0355
07:01-08:00, Sun., 23 Dec. 0.0373 0.0336 0.0356
06:01-07:00, Sun., 23 Dec. 0.0385 0.0333 0.0355
05:01-06:00, Sun., 23 Dec. 0.0373 0.0335 0.0356
04:01-05:00, Sun., 23 Dec. 0.0374 0.0328 0.0357
03:01-04:00, Sun., 23 Dec. 0.0379 0.0339 0.0356
02:01-03:00, Sun., 23 Dec. 0.0371 0.0345 0.0357
01:01-02:00, Sun., 23 Dec. 0.0382 0.0327 0.0353
00:01-01:00, Sun., 23 Dec. 0.0372 0.0332 0.0351
23:01-24:00, Sat., 22 Dec. 0.0373 0.0325 0.0353
22:01-23:00, Sat., 22 Dec. 0.0379 0.0336 0.0354
21:01-22:00, Sat., 22 Dec. 0.0367 0.0333 0.0353
20:01-21:00, Sat., 22 Dec. 0.0372 0.0329 0.0353
19:01-20:00, Sat., 22 Dec. 0.0386 0.0339 0.0360
18:01-19:00, Sat., 22 Dec. 0.0387 0.0345 0.0361
17:01-18:00, Sat., 22 Dec. 0.0374 0.0329 0.0358
16:01-17:00, Sat., 22 Dec. 0.0381 0.0345 0.0361
15:01-16:00, Sat., 22 Dec. 0.0417 0.0346 0.0368
14:01-15:00, Sat., 22 Dec. 0.0438 0.0363 0.0393
13:01-14:00, Sat., 22 Dec. 0.0488 0.0400 0.0444
12:01-13:00, Sat., 22 Dec. 0.0515 0.0442 0.0473
11:01-12:00, Sat., 22 Dec. 0.0568 0.0462 0.0519
10:01-11:00, Sat., 22 Dec. 0.0558 0.0477 0.0518
09:01-10:00, Sat., 22 Dec. 0.0549 0.0469 0.0502
08:01-09:00, Sat., 22 Dec. 0.0521 0.0418 0.0463
07:01-08:00, Sat., 22 Dec. 0.0469 0.0369 0.0418
06:01-07:00, Sat., 22 Dec. 0.0441 0.0368 0.0396
05:01-06:00, Sat., 22 Dec. 0.0422 0.0366 0.0394
04:01-05:00, Sat., 22 Dec. 0.0413 0.0357 0.0373
03:01-04:00, Sat., 22 Dec. 0.0394 0.0342 0.0367
02:01-03:00, Sat., 22 Dec. 0.0400 0.0347 0.0367
01:01-02:00, Sat., 22 Dec. 0.0382 0.0346 0.0365
00:01-01:00, Sat., 22 Dec. 0.0389 0.0347 0.0366
23:01-24:00, Fri., 21 Dec. 0.0397 0.0344 0.0364
22:01-23:00, Fri., 21 Dec. 0.0384 0.0338 0.0361
21:01-22:00, Fri., 21 Dec. 0.0400 0.0343 0.0361
20:01-21:00, Fri., 21 Dec. 0.0373 0.0338 0.0358
19:01-20:00, Fri., 21 Dec. 0.0389 0.0344 0.0361
18:01-19:00, Fri., 21 Dec. 0.0394 0.0328 0.0358
17:01-18:00, Fri., 21 Dec. 0.0379 0.0338 0.0358
16:01-17:00, Fri., 21 Dec. 0.0371 0.0334 0.0356
15:01-16:00, Fri., 21 Dec. 0.0380 0.0333 0.0356
14:01-15:00, Fri., 21 Dec. 0.0382 0.0342 0.0357
13:01-14:00, Fri., 21 Dec. 0.0382 0.0339 0.0357
12:01-13:00, Fri., 21 Dec. 0.0374 0.0340 0.0358
11:01-12:00, Fri., 21 Dec. 0.0375 0.0335 0.0361
10:01-11:00, Fri., 21 Dec. 0.0388 0.0339 0.0364
09:01-10:00, Fri., 21 Dec. 0.0417 0.0358 0.0383
08:01-09:00, Fri., 21 Dec. 0.0419 0.0361 0.0384
07:01-08:00, Fri., 21 Dec. 0.0412 0.0354 0.0384
06:01-07:00, Fri., 21 Dec. 0.0411 0.0359 0.0381
05:01-06:00, Fri., 21 Dec. 0.0413 0.0356 0.0379
04:01-05:00, Fri., 21 Dec. 0.0411 0.0348 0.0381
03:01-04:00, Fri., 21 Dec. 0.0408 0.0356 0.0377
02:01-03:00, Fri., 21 Dec. 0.0407 0.0356 0.0375
01:01-02:00, Fri., 21 Dec. 0.0397 0.0352 0.0368
00:01-01:00, Fri., 21 Dec. 0.0394 0.0347 0.0363
23:01-24:00, Thu., 20 Dec. 0.0389 0.0343 0.0361
22:01-23:00, Thu., 20 Dec. 0.0398 0.0344 0.0364
21:01-22:00, Thu., 20 Dec. 0.0386 0.0335 0.0364
20:01-21:00, Thu., 20 Dec. 0.0386 0.0339 0.0361
19:01-20:00, Thu., 20 Dec. 0.0380 0.0337 0.0359
18:01-19:00, Thu., 20 Dec. 0.0391 0.0350 0.0368
17:01-18:00, Thu., 20 Dec. 0.0427 0.0358 0.0389
16:01-17:00, Thu., 20 Dec. 0.0465 0.0345 0.0405
15:01-16:00, Thu., 20 Dec. 0.0384 0.0331 0.0356
14:01-15:00, Thu., 20 Dec. 0.0385 0.0329 0.0358
13:01-14:00, Thu., 20 Dec. 0.0380 0.0337 0.0355
12:01-13:00, Thu., 20 Dec. 0.0376 0.0336 0.0359
11:01-12:00, Thu., 20 Dec. 0.0401 0.0345 0.0360
10:01-11:00, Thu., 20 Dec. 0.0385 0.0338 0.0360
09:01-10:00, Thu., 20 Dec. 0.0400 0.0342 0.0366
08:01-09:00, Thu., 20 Dec. 0.0403 0.0345 0.0372
07:01-08:00, Thu., 20 Dec. 0.0393 0.0344 0.0366
06:01-07:00, Thu., 20 Dec. 0.0391 0.0343 0.0363
05:01-06:00, Thu., 20 Dec. 0.0393 0.0346 0.0366
04:01-05:00, Thu., 20 Dec. 0.0397 0.0348 0.0369
03:01-04:00, Thu., 20 Dec. 0.0396 0.0346 0.0363
02:01-03:00, Thu., 20 Dec. 0.0396 0.0346 0.0366
01:01-02:00, Thu., 20 Dec. 0.0389 0.0347 0.0364
00:01-01:00, Thu., 20 Dec. 0.0390 0.0347 0.0362
23:01-24:00, Wed., 19 Dec. 0.0380 0.0341 0.0359
22:01-23:00, Wed., 19 Dec. 0.0386 0.0338 0.0359
21:01-22:00, Wed., 19 Dec. 0.0397 0.0337 0.0361
20:01-21:00, Wed., 19 Dec. 0.0376 0.0342 0.0358
19:01-20:00, Wed., 19 Dec. 0.0382 0.0332 0.0359
18:01-19:00, Wed., 19 Dec. 0.0377 0.0338 0.0360
17:01-18:00, Wed., 19 Dec. 0.0372 0.0337 0.0358
16:01-17:00, Wed., 19 Dec. 0.0396 0.0337 0.0358
15:01-16:00, Wed., 19 Dec. 0.0375 0.0340 0.0357
14:01-15:00, Wed., 19 Dec. 0.0397 0.0333 0.0359
13:01-14:00, Wed., 19 Dec. 0.0393 0.0345 0.0359
12:01-13:00, Wed., 19 Dec. 0.0404 0.0328 0.0362
11:01-12:00, Wed., 19 Dec. 0.0391 0.0346 0.0361
10:01-11:00, Wed., 19 Dec. 0.0383 0.0336 0.0360
09:01-10:00, Wed., 19 Dec. 0.0389 0.0334 0.0359
08:01-09:00, Wed., 19 Dec. 0.0379 0.0336 0.0358
07:01-08:00, Wed., 19 Dec. 0.0397 0.0341 0.0361
06:01-07:00, Wed., 19 Dec. 0.0386 0.0346 0.0361
05:01-06:00, Wed., 19 Dec. 0.0398 0.0344 0.0361
04:01-05:00, Wed., 19 Dec. 0.0387 0.0336 0.0362
03:01-04:00, Wed., 19 Dec. 0.0389 0.0343 0.0365
02:01-03:00, Wed., 19 Dec. 0.0402 0.0343 0.0369
01:01-02:00, Wed., 19 Dec. 0.0397 0.0347 0.0368
00:01-01:00, Wed., 19 Dec. 0.0383 0.0338 0.0363
23:01-24:00, Tue., 18 Dec. 0.0411 0.0351 0.0368
22:01-23:00, Tue., 18 Dec. 0.0407 0.0345 0.0365
21:01-22:00, Tue., 18 Dec. 0.0384 0.0340 0.0362
20:01-21:00, Tue., 18 Dec. 0.0396 0.0344 0.0365
19:01-20:00, Tue., 18 Dec. 0.0387 0.0342 0.0366
18:01-19:00, Tue., 18 Dec. 0.0378 0.0345 0.0360
17:01-18:00, Tue., 18 Dec. 0.0379 0.0333 0.0358
16:01-17:00, Tue., 18 Dec. 0.0380 0.0340 0.0358
15:01-16:00, Tue., 18 Dec. 0.0393 0.0344 0.0361
14:01-15:00, Tue., 18 Dec. 0.0376 0.0346 0.0361
13:01-14:00, Tue., 18 Dec. 0.0387 0.0346 0.0364
12:01-13:00, Tue., 18 Dec. 0.0397 0.0337 0.0364
11:01-12:00, Tue., 18 Dec. 0.0394 0.0336 0.0364
10:01-11:00, Tue., 18 Dec. 0.0387 0.0346 0.0363
09:01-10:00, Tue., 18 Dec. 0.0387 0.0352 0.0369
08:01-09:00, Tue., 18 Dec. 0.0402 0.0344 0.0371
07:01-08:00, Tue., 18 Dec. 0.0400 0.0340 0.0371
06:01-07:00, Tue., 18 Dec. 0.0390 0.0348 0.0365
05:01-06:00, Tue., 18 Dec. 0.0398 0.0341 0.0363
04:01-05:00, Tue., 18 Dec. 0.0393 0.0339 0.0363
03:01-04:00, Tue., 18 Dec. 0.0389 0.0341 0.0363
02:01-03:00, Tue., 18 Dec. 0.0398 0.0348 0.0367
01:01-02:00, Tue., 18 Dec. 0.0401 0.0349 0.0371
00:01-01:00, Tue., 18 Dec. 0.0411 0.0363 0.0383
23:01-24:00, Mon., 17 Dec. 0.0404 0.0349 0.0373
22:01-23:00, Mon., 17 Dec. 0.0422 0.0353 0.0382
21:01-22:00, Mon., 17 Dec. 0.0422 0.0366 0.0396
20:01-21:00, Mon., 17 Dec. 0.0423 0.0343 0.0376
19:01-20:00, Mon., 17 Dec. 0.0418 0.0354 0.0381
18:01-19:00, Mon., 17 Dec. 0.0417 0.0339 0.0376
17:01-18:00, Mon., 17 Dec. 0.0411 0.0338 0.0367
16:01-17:00, Mon., 17 Dec. 0.0394 0.0350 0.0370
15:01-16:00, Mon., 17 Dec. 0.0400 0.0347 0.0370
14:01-15:00, Mon., 17 Dec. 0.0416 0.0359 0.0382
13:01-14:00, Mon., 17 Dec. 0.0426 0.0355 0.0388
12:01-13:00, Mon., 17 Dec. 0.0412 0.0350 0.0376
11:01-12:00, Mon., 17 Dec. 0.0448 0.0369 0.0406
10:01-11:00, Mon., 17 Dec. 0.0499 0.0397 0.0441
09:01-10:00, Mon., 17 Dec. 0.0493 0.0393 0.0436
08:01-09:00, Mon., 17 Dec. 0.0442 0.0358 0.0377
07:01-08:00, Mon., 17 Dec. 0.0401 0.0352 0.0371
06:01-07:00, Mon., 17 Dec. 0.0398 0.0353 0.0369
05:01-06:00, Mon., 17 Dec. 0.0403 0.0349 0.0370
04:01-05:00, Mon., 17 Dec. 0.0379 0.0346 0.0364
03:01-04:00, Mon., 17 Dec. 0.0392 0.0345 0.0366
02:01-03:00, Mon., 17 Dec. 0.0389 0.0347 0.0363
01:01-02:00, Mon., 17 Dec. 0.0388 0.0343 0.0363
00:01-01:00, Mon., 17 Dec. 0.0397 0.0346 0.0363