Measurement results by the hour (Chofu) 1 Apr., 2013 - 7 Apr., 2013

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 Apr. 0.0365 0.0326 0.0341
22:01-23:00, Sun., 07 Apr. 0.0363 0.0316 0.0340
21:01-22:00, Sun., 07 Apr. 0.0357 0.0324 0.0342
20:01-21:00, Sun., 07 Apr. 0.0363 0.0316 0.0339
19:01-20:00, Sun., 07 Apr. 0.0354 0.0316 0.0336
18:01-19:00, Sun., 07 Apr. 0.0360 0.0318 0.0337
17:01-18:00, Sun., 07 Apr. 0.0360 0.0319 0.0336
16:01-17:00, Sun., 07 Apr. 0.0344 0.0308 0.0330
15:01-16:00, Sun., 07 Apr. 0.0356 0.0308 0.0332
14:01-15:00, Sun., 07 Apr. 0.0360 0.0314 0.0330
13:01-14:00, Sun., 07 Apr. 0.0346 0.0318 0.0333
12:01-13:00, Sun., 07 Apr. 0.0349 0.0313 0.0334
11:01-12:00, Sun., 07 Apr. 0.0353 0.0315 0.0334
10:01-11:00, Sun., 07 Apr. 0.0355 0.0305 0.0332
09:01-10:00, Sun., 07 Apr. 0.0353 0.0314 0.0333
08:01-09:00, Sun., 07 Apr. 0.0356 0.0307 0.0331
07:01-08:00, Sun., 07 Apr. 0.0348 0.0303 0.0328
06:01-07:00, Sun., 07 Apr. 0.0357 0.0312 0.0330
05:01-06:00, Sun., 07 Apr. 0.0351 0.0309 0.0329
04:01-05:00, Sun., 07 Apr. 0.0355 0.0315 0.0332
03:01-04:00, Sun., 07 Apr. 0.0383 0.0311 0.0348
02:01-03:00, Sun., 07 Apr. 0.0465 0.0351 0.0396
01:01-02:00, Sun., 07 Apr. 0.0535 0.0426 0.0492
00:01-01:00, Sun., 07 Apr. 0.0528 0.0452 0.0489
23:01-24:00, Sat., 06 Apr. 0.0509 0.0390 0.0439
22:01-23:00, Sat., 06 Apr. 0.0440 0.0373 0.0406
21:01-22:00, Sat., 06 Apr. 0.0449 0.0372 0.0413
20:01-21:00, Sat., 06 Apr. 0.0472 0.0391 0.0433
19:01-20:00, Sat., 06 Apr. 0.0489 0.0414 0.0441
18:01-19:00, Sat., 06 Apr. 0.0478 0.0401 0.0444
17:01-18:00, Sat., 06 Apr. 0.0455 0.0370 0.0424
16:01-17:00, Sat., 06 Apr. 0.0435 0.0370 0.0399
15:01-16:00, Sat., 06 Apr. 0.0405 0.0334 0.0371
14:01-15:00, Sat., 06 Apr. 0.0362 0.0316 0.0337
13:01-14:00, Sat., 06 Apr. 0.0361 0.0314 0.0333
12:01-13:00, Sat., 06 Apr. 0.0350 0.0310 0.0331
11:01-12:00, Sat., 06 Apr. 0.0362 0.0313 0.0334
10:01-11:00, Sat., 06 Apr. 0.0353 0.0315 0.0334
09:01-10:00, Sat., 06 Apr. 0.0356 0.0306 0.0332
08:01-09:00, Sat., 06 Apr. 0.0354 0.0310 0.0337
07:01-08:00, Sat., 06 Apr. 0.0367 0.0327 0.0343
06:01-07:00, Sat., 06 Apr. 0.0363 0.0321 0.0342
05:01-06:00, Sat., 06 Apr. 0.0363 0.0323 0.0343
04:01-05:00, Sat., 06 Apr. 0.0363 0.0313 0.0340
03:01-04:00, Sat., 06 Apr. 0.0353 0.0320 0.0338
02:01-03:00, Sat., 06 Apr. 0.0357 0.0312 0.0339
01:01-02:00, Sat., 06 Apr. 0.0360 0.0316 0.0338
00:01-01:00, Sat., 06 Apr. 0.0356 0.0322 0.0336
23:01-24:00, Fri., 05 Apr. 0.0354 0.0317 0.0335
22:01-23:00, Fri., 05 Apr. 0.0355 0.0315 0.0334
21:01-22:00, Fri., 05 Apr. 0.0349 0.0298 0.0331
20:01-21:00, Fri., 05 Apr. 0.0359 0.0311 0.0332
19:01-20:00, Fri., 05 Apr. 0.0352 0.0309 0.0332
18:01-19:00, Fri., 05 Apr. 0.0351 0.0312 0.0333
17:01-18:00, Fri., 05 Apr. 0.0362 0.0314 0.0332
16:01-17:00, Fri., 05 Apr. 0.0348 0.0307 0.0332
15:01-16:00, Fri., 05 Apr. 0.0350 0.0317 0.0332
14:01-15:00, Fri., 05 Apr. 0.0347 0.0309 0.0328
13:01-14:00, Fri., 05 Apr. 0.0349 0.0311 0.0331
12:01-13:00, Fri., 05 Apr. 0.0354 0.0317 0.0334
11:01-12:00, Fri., 05 Apr. 0.0351 0.0311 0.0334
10:01-11:00, Fri., 05 Apr. 0.0362 0.0313 0.0335
09:01-10:00, Fri., 05 Apr. 0.0358 0.0314 0.0335
08:01-09:00, Fri., 05 Apr. 0.0364 0.0309 0.0338
07:01-08:00, Fri., 05 Apr. 0.0357 0.0317 0.0336
06:01-07:00, Fri., 05 Apr. 0.0359 0.0311 0.0335
05:01-06:00, Fri., 05 Apr. 0.0354 0.0318 0.0337
04:01-05:00, Fri., 05 Apr. 0.0358 0.0316 0.0336
03:01-04:00, Fri., 05 Apr. 0.0351 0.0321 0.0336
02:01-03:00, Fri., 05 Apr. 0.0366 0.0318 0.0337
01:01-02:00, Fri., 05 Apr. 0.0355 0.0310 0.0331
00:01-01:00, Fri., 05 Apr. 0.0356 0.0318 0.0336
23:01-24:00, Thu., 04 Apr. 0.0358 0.0313 0.0333
22:01-23:00, Thu., 04 Apr. 0.0347 0.0306 0.0331
21:01-22:00, Thu., 04 Apr. 0.0349 0.0310 0.0331
20:01-21:00, Thu., 04 Apr. 0.0344 0.0312 0.0330
19:01-20:00, Thu., 04 Apr. 0.0349 0.0307 0.0330
18:01-19:00, Thu., 04 Apr. 0.0347 0.0309 0.0328
17:01-18:00, Thu., 04 Apr. 0.0351 0.0316 0.0332
16:01-17:00, Thu., 04 Apr. 0.0349 0.0310 0.0326
15:01-16:00, Thu., 04 Apr. 0.0347 0.0307 0.0327
14:01-15:00, Thu., 04 Apr. 0.0360 0.0313 0.0330
13:01-14:00, Thu., 04 Apr. 0.0348 0.0307 0.0329
12:01-13:00, Thu., 04 Apr. 0.0351 0.0313 0.0330
11:01-12:00, Thu., 04 Apr. 0.0348 0.0313 0.0332
10:01-11:00, Thu., 04 Apr. 0.0349 0.0310 0.0331
09:01-10:00, Thu., 04 Apr. 0.0362 0.0311 0.0332
08:01-09:00, Thu., 04 Apr. 0.0360 0.0312 0.0336
07:01-08:00, Thu., 04 Apr. 0.0360 0.0316 0.0335
06:01-07:00, Thu., 04 Apr. 0.0361 0.0319 0.0335
05:01-06:00, Thu., 04 Apr. 0.0361 0.0316 0.0335
04:01-05:00, Thu., 04 Apr. 0.0359 0.0314 0.0336
03:01-04:00, Thu., 04 Apr. 0.0353 0.0314 0.0335
02:01-03:00, Thu., 04 Apr. 0.0358 0.0308 0.0331
01:01-02:00, Thu., 04 Apr. 0.0351 0.0313 0.0330
00:01-01:00, Thu., 04 Apr. 0.0350 0.0316 0.0332
23:01-24:00, Wed., 03 Apr. 0.0344 0.0309 0.0329
22:01-23:00, Wed., 03 Apr. 0.0349 0.0315 0.0329
21:01-22:00, Wed., 03 Apr. 0.0346 0.0304 0.0328
20:01-21:00, Wed., 03 Apr. 0.0353 0.0309 0.0330
19:01-20:00, Wed., 03 Apr. 0.0348 0.0312 0.0329
18:01-19:00, Wed., 03 Apr. 0.0355 0.0313 0.0332
17:01-18:00, Wed., 03 Apr. 0.0356 0.0319 0.0335
16:01-17:00, Wed., 03 Apr. 0.0354 0.0313 0.0336
15:01-16:00, Wed., 03 Apr. 0.0375 0.0327 0.0349
14:01-15:00, Wed., 03 Apr. 0.0452 0.0331 0.0391
13:01-14:00, Wed., 03 Apr. 0.0460 0.0398 0.0430
12:01-13:00, Wed., 03 Apr. 0.0490 0.0410 0.0446
11:01-12:00, Wed., 03 Apr. 0.0491 0.0403 0.0449
10:01-11:00, Wed., 03 Apr. 0.0489 0.0405 0.0441
09:01-10:00, Wed., 03 Apr. 0.0475 0.0402 0.0442
08:01-09:00, Wed., 03 Apr. 0.0475 0.0418 0.0443
07:01-08:00, Wed., 03 Apr. 0.0491 0.0413 0.0450
06:01-07:00, Wed., 03 Apr. 0.0485 0.0428 0.0454
05:01-06:00, Wed., 03 Apr. 0.0478 0.0384 0.0424
04:01-05:00, Wed., 03 Apr. 0.0424 0.0368 0.0396
03:01-04:00, Wed., 03 Apr. 0.0429 0.0346 0.0380
02:01-03:00, Wed., 03 Apr. 0.0400 0.0340 0.0366
01:01-02:00, Wed., 03 Apr. 0.0449 0.0368 0.0411
00:01-01:00, Wed., 03 Apr. 0.0503 0.0410 0.0452
23:01-24:00, Tue., 02 Apr. 0.0516 0.0440 0.0472
22:01-23:00, Tue., 02 Apr. 0.0551 0.0439 0.0485
21:01-22:00, Tue., 02 Apr. 0.0568 0.0496 0.0526
20:01-21:00, Tue., 02 Apr. 0.0550 0.0467 0.0518
19:01-20:00, Tue., 02 Apr. 0.0515 0.0432 0.0472
18:01-19:00, Tue., 02 Apr. 0.0461 0.0401 0.0432
17:01-18:00, Tue., 02 Apr. 0.0440 0.0367 0.0401
16:01-17:00, Tue., 02 Apr. 0.0416 0.0353 0.0373
15:01-16:00, Tue., 02 Apr. 0.0439 0.0364 0.0402
14:01-15:00, Tue., 02 Apr. 0.0458 0.0381 0.0418
13:01-14:00, Tue., 02 Apr. 0.0450 0.0371 0.0413
12:01-13:00, Tue., 02 Apr. 0.0476 0.0402 0.0430
11:01-12:00, Tue., 02 Apr. 0.0481 0.0412 0.0442
10:01-11:00, Tue., 02 Apr. 0.0505 0.0427 0.0461
09:01-10:00, Tue., 02 Apr. 0.0499 0.0436 0.0474
08:01-09:00, Tue., 02 Apr. 0.0539 0.0467 0.0499
07:01-08:00, Tue., 02 Apr. 0.0571 0.0481 0.0523
06:01-07:00, Tue., 02 Apr. 0.0569 0.0486 0.0531
05:01-06:00, Tue., 02 Apr. 0.0569 0.0459 0.0501
04:01-05:00, Tue., 02 Apr. 0.0505 0.0419 0.0460
03:01-04:00, Tue., 02 Apr. 0.0503 0.0421 0.0465
02:01-03:00, Tue., 02 Apr. 0.0482 0.0416 0.0450
01:01-02:00, Tue., 02 Apr. 0.0460 0.0359 0.0402
00:01-01:00, Tue., 02 Apr. 0.0409 0.0336 0.0364
23:01-24:00, Mon., 01 Apr. 0.0360 0.0316 0.0342
22:01-23:00, Mon., 01 Apr. 0.0364 0.0325 0.0341
21:01-22:00, Mon., 01 Apr. 0.0359 0.0322 0.0339
20:01-21:00, Mon., 01 Apr. 0.0356 0.0324 0.0340
19:01-20:00, Mon., 01 Apr. 0.0363 0.0319 0.0339
18:01-19:00, Mon., 01 Apr. 0.0360 0.0320 0.0338
17:01-18:00, Mon., 01 Apr. 0.0358 0.0326 0.0341
16:01-17:00, Mon., 01 Apr. 0.0363 0.0319 0.0340
15:01-16:00, Mon., 01 Apr. 0.0366 0.0315 0.0341
14:01-15:00, Mon., 01 Apr. 0.0365 0.0323 0.0341
13:01-14:00, Mon., 01 Apr. 0.0358 0.0328 0.0344
12:01-13:00, Mon., 01 Apr. 0.0360 0.0322 0.0342
11:01-12:00, Mon., 01 Apr. 0.0364 0.0322 0.0344
10:01-11:00, Mon., 01 Apr. 0.0362 0.0323 0.0344
09:01-10:00, Mon., 01 Apr. 0.0363 0.0325 0.0346
08:01-09:00, Mon., 01 Apr. 0.0362 0.0328 0.0346
07:01-08:00, Mon., 01 Apr. 0.0363 0.0325 0.0347
06:01-07:00, Mon., 01 Apr. 0.0370 0.0326 0.0347
05:01-06:00, Mon., 01 Apr. 0.0362 0.0321 0.0344
04:01-05:00, Mon., 01 Apr. 0.0370 0.0321 0.0344
03:01-04:00, Mon., 01 Apr. 0.0364 0.0321 0.0343
02:01-03:00, Mon., 01 Apr. 0.0366 0.0329 0.0347
01:01-02:00, Mon., 01 Apr. 0.0368 0.0325 0.0344
00:01-01:00, Mon., 01 Apr. 0.0357 0.0321 0.0343