Measurement results by the hour (Chofu) 25 Mar., 2013 - 31 Mar., 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., 31 Mar. 0.0366 0.0329 0.0345
22:01-23:00, Sun., 31 Mar. 0.0362 0.0325 0.0342
21:01-22:00, Sun., 31 Mar. 0.0368 0.0330 0.0348
20:01-21:00, Sun., 31 Mar. 0.0372 0.0331 0.0352
19:01-20:00, Sun., 31 Mar. 0.0372 0.0324 0.0350
18:01-19:00, Sun., 31 Mar. 0.0365 0.0318 0.0346
17:01-18:00, Sun., 31 Mar. 0.0377 0.0327 0.0346
16:01-17:00, Sun., 31 Mar. 0.0368 0.0321 0.0342
15:01-16:00, Sun., 31 Mar. 0.0372 0.0322 0.0343
14:01-15:00, Sun., 31 Mar. 0.0367 0.0321 0.0341
13:01-14:00, Sun., 31 Mar. 0.0361 0.0321 0.0343
12:01-13:00, Sun., 31 Mar. 0.0366 0.0326 0.0344
11:01-12:00, Sun., 31 Mar. 0.0364 0.0323 0.0343
10:01-11:00, Sun., 31 Mar. 0.0368 0.0319 0.0344
09:01-10:00, Sun., 31 Mar. 0.0367 0.0320 0.0347
08:01-09:00, Sun., 31 Mar. 0.0382 0.0332 0.0350
07:01-08:00, Sun., 31 Mar. 0.0384 0.0342 0.0358
06:01-07:00, Sun., 31 Mar. 0.0432 0.0351 0.0388
05:01-06:00, Sun., 31 Mar. 0.0432 0.0355 0.0389
04:01-05:00, Sun., 31 Mar. 0.0423 0.0337 0.0362
03:01-04:00, Sun., 31 Mar. 0.0401 0.0353 0.0373
02:01-03:00, Sun., 31 Mar. 0.0406 0.0349 0.0370
01:01-02:00, Sun., 31 Mar. 0.0386 0.0329 0.0355
00:01-01:00, Sun., 31 Mar. 0.0365 0.0326 0.0348
23:01-24:00, Sat., 30 Mar. 0.0370 0.0326 0.0350
22:01-23:00, Sat., 30 Mar. 0.0381 0.0336 0.0357
21:01-22:00, Sat., 30 Mar. 0.0396 0.0327 0.0358
20:01-21:00, Sat., 30 Mar. 0.0376 0.0327 0.0352
19:01-20:00, Sat., 30 Mar. 0.0370 0.0335 0.0354
18:01-19:00, Sat., 30 Mar. 0.0379 0.0332 0.0349
17:01-18:00, Sat., 30 Mar. 0.0370 0.0331 0.0348
16:01-17:00, Sat., 30 Mar. 0.0366 0.0320 0.0344
15:01-16:00, Sat., 30 Mar. 0.0366 0.0319 0.0344
14:01-15:00, Sat., 30 Mar. 0.0366 0.0329 0.0345
13:01-14:00, Sat., 30 Mar. 0.0364 0.0323 0.0344
12:01-13:00, Sat., 30 Mar. 0.0363 0.0330 0.0348
11:01-12:00, Sat., 30 Mar. 0.0373 0.0334 0.0350
10:01-11:00, Sat., 30 Mar. 0.0374 0.0326 0.0352
09:01-10:00, Sat., 30 Mar. 0.0371 0.0327 0.0349
08:01-09:00, Sat., 30 Mar. 0.0367 0.0332 0.0351
07:01-08:00, Sat., 30 Mar. 0.0366 0.0325 0.0346
06:01-07:00, Sat., 30 Mar. 0.0367 0.0327 0.0344
05:01-06:00, Sat., 30 Mar. 0.0371 0.0323 0.0343
04:01-05:00, Sat., 30 Mar. 0.0366 0.0321 0.0344
03:01-04:00, Sat., 30 Mar. 0.0363 0.0315 0.0340
02:01-03:00, Sat., 30 Mar. 0.0358 0.0325 0.0342
01:01-02:00, Sat., 30 Mar. 0.0363 0.0324 0.0343
00:01-01:00, Sat., 30 Mar. 0.0365 0.0314 0.0342
23:01-24:00, Fri., 29 Mar. 0.0360 0.0319 0.0340
22:01-23:00, Fri., 29 Mar. 0.0364 0.0330 0.0343
21:01-22:00, Fri., 29 Mar. 0.0363 0.0324 0.0342
20:01-21:00, Fri., 29 Mar. 0.0364 0.0314 0.0340
19:01-20:00, Fri., 29 Mar. 0.0357 0.0306 0.0337
18:01-19:00, Fri., 29 Mar. 0.0355 0.0316 0.0339
17:01-18:00, Fri., 29 Mar. 0.0355 0.0323 0.0337
16:01-17:00, Fri., 29 Mar. 0.0358 0.0317 0.0336
15:01-16:00, Fri., 29 Mar. 0.0360 0.0314 0.0336
14:01-15:00, Fri., 29 Mar. 0.0355 0.0311 0.0335
13:01-14:00, Fri., 29 Mar. 0.0352 0.0319 0.0339
12:01-13:00, Fri., 29 Mar. 0.0359 0.0321 0.0341
11:01-12:00, Fri., 29 Mar. 0.0361 0.0323 0.0341
10:01-11:00, Fri., 29 Mar. 0.0360 0.0323 0.0344
09:01-10:00, Fri., 29 Mar. 0.0367 0.0330 0.0350
08:01-09:00, Fri., 29 Mar. 0.0383 0.0331 0.0351
07:01-08:00, Fri., 29 Mar. 0.0371 0.0332 0.0354
06:01-07:00, Fri., 29 Mar. 0.0370 0.0335 0.0352
05:01-06:00, Fri., 29 Mar. 0.0372 0.0335 0.0353
04:01-05:00, Fri., 29 Mar. 0.0365 0.0317 0.0347
03:01-04:00, Fri., 29 Mar. 0.0371 0.0328 0.0348
02:01-03:00, Fri., 29 Mar. 0.0373 0.0332 0.0350
01:01-02:00, Fri., 29 Mar. 0.0369 0.0322 0.0345
00:01-01:00, Fri., 29 Mar. 0.0358 0.0319 0.0340
23:01-24:00, Thu., 28 Mar. 0.0356 0.0320 0.0337
22:01-23:00, Thu., 28 Mar. 0.0355 0.0310 0.0335
21:01-22:00, Thu., 28 Mar. 0.0359 0.0310 0.0336
20:01-21:00, Thu., 28 Mar. 0.0354 0.0320 0.0337
19:01-20:00, Thu., 28 Mar. 0.0353 0.0314 0.0332
18:01-19:00, Thu., 28 Mar. 0.0353 0.0313 0.0333
17:01-18:00, Thu., 28 Mar. 0.0362 0.0315 0.0333
16:01-17:00, Thu., 28 Mar. 0.0352 0.0317 0.0333
15:01-16:00, Thu., 28 Mar. 0.0362 0.0303 0.0332
14:01-15:00, Thu., 28 Mar. 0.0355 0.0315 0.0334
13:01-14:00, Thu., 28 Mar. 0.0355 0.0316 0.0335
12:01-13:00, Thu., 28 Mar. 0.0364 0.0311 0.0337
11:01-12:00, Thu., 28 Mar. 0.0358 0.0315 0.0339
10:01-11:00, Thu., 28 Mar. 0.0365 0.0328 0.0342
09:01-10:00, Thu., 28 Mar. 0.0361 0.0327 0.0345
08:01-09:00, Thu., 28 Mar. 0.0366 0.0330 0.0347
07:01-08:00, Thu., 28 Mar. 0.0365 0.0329 0.0349
06:01-07:00, Thu., 28 Mar. 0.0374 0.0322 0.0347
05:01-06:00, Thu., 28 Mar. 0.0364 0.0323 0.0344
04:01-05:00, Thu., 28 Mar. 0.0365 0.0328 0.0345
03:01-04:00, Thu., 28 Mar. 0.0368 0.0327 0.0342
02:01-03:00, Thu., 28 Mar. 0.0362 0.0319 0.0342
01:01-02:00, Thu., 28 Mar. 0.0357 0.0314 0.0338
00:01-01:00, Thu., 28 Mar. 0.0360 0.0320 0.0341
23:01-24:00, Wed., 27 Mar. 0.0368 0.0319 0.0337
22:01-23:00, Wed., 27 Mar. 0.0358 0.0319 0.0339
21:01-22:00, Wed., 27 Mar. 0.0357 0.0317 0.0338
20:01-21:00, Wed., 27 Mar. 0.0365 0.0316 0.0338
19:01-20:00, Wed., 27 Mar. 0.0356 0.0321 0.0340
18:01-19:00, Wed., 27 Mar. 0.0355 0.0316 0.0337
17:01-18:00, Wed., 27 Mar. 0.0367 0.0318 0.0339
16:01-17:00, Wed., 27 Mar. 0.0362 0.0313 0.0337
15:01-16:00, Wed., 27 Mar. 0.0362 0.0321 0.0342
14:01-15:00, Wed., 27 Mar. 0.0404 0.0328 0.0359
13:01-14:00, Wed., 27 Mar. 0.0437 0.0367 0.0395
12:01-13:00, Wed., 27 Mar. 0.0489 0.0406 0.0441
11:01-12:00, Wed., 27 Mar. 0.0480 0.0400 0.0439
10:01-11:00, Wed., 27 Mar. 0.0439 0.0371 0.0406
09:01-10:00, Wed., 27 Mar. 0.0427 0.0359 0.0392
08:01-09:00, Wed., 27 Mar. 0.0375 0.0334 0.0356
07:01-08:00, Wed., 27 Mar. 0.0380 0.0336 0.0355
06:01-07:00, Wed., 27 Mar. 0.0372 0.0341 0.0359
05:01-06:00, Wed., 27 Mar. 0.0373 0.0335 0.0358
04:01-05:00, Wed., 27 Mar. 0.0369 0.0330 0.0350
03:01-04:00, Wed., 27 Mar. 0.0368 0.0320 0.0346
02:01-03:00, Wed., 27 Mar. 0.0363 0.0327 0.0346
01:01-02:00, Wed., 27 Mar. 0.0364 0.0323 0.0341
00:01-01:00, Wed., 27 Mar. 0.0354 0.0325 0.0339
23:01-24:00, Tue., 26 Mar. 0.0355 0.0322 0.0339
22:01-23:00, Tue., 26 Mar. 0.0362 0.0316 0.0339
21:01-22:00, Tue., 26 Mar. 0.0358 0.0326 0.0339
20:01-21:00, Tue., 26 Mar. 0.0359 0.0312 0.0337
19:01-20:00, Tue., 26 Mar. 0.0358 0.0324 0.0340
18:01-19:00, Tue., 26 Mar. 0.0360 0.0318 0.0337
17:01-18:00, Tue., 26 Mar. 0.0371 0.0320 0.0338
16:01-17:00, Tue., 26 Mar. 0.0366 0.0311 0.0339
15:01-16:00, Tue., 26 Mar. 0.0364 0.0315 0.0337
14:01-15:00, Tue., 26 Mar. 0.0363 0.0322 0.0340
13:01-14:00, Tue., 26 Mar. 0.0370 0.0322 0.0340
12:01-13:00, Tue., 26 Mar. 0.0362 0.0319 0.0341
11:01-12:00, Tue., 26 Mar. 0.0363 0.0316 0.0343
10:01-11:00, Tue., 26 Mar. 0.0365 0.0323 0.0341
09:01-10:00, Tue., 26 Mar. 0.0360 0.0311 0.0339
08:01-09:00, Tue., 26 Mar. 0.0361 0.0319 0.0342
07:01-08:00, Tue., 26 Mar. 0.0364 0.0318 0.0341
06:01-07:00, Tue., 26 Mar. 0.0363 0.0325 0.0340
05:01-06:00, Tue., 26 Mar. 0.0368 0.0316 0.0338
04:01-05:00, Tue., 26 Mar. 0.0363 0.0318 0.0342
03:01-04:00, Tue., 26 Mar. 0.0365 0.0324 0.0341
02:01-03:00, Tue., 26 Mar. 0.0360 0.0313 0.0341
01:01-02:00, Tue., 26 Mar. 0.0365 0.0324 0.0347
00:01-01:00, Tue., 26 Mar. 0.0386 0.0337 0.0362
23:01-24:00, Mon., 25 Mar. 0.0483 0.0356 0.0409
22:01-23:00, Mon., 25 Mar. 0.0538 0.0443 0.0488
21:01-22:00, Mon., 25 Mar. 0.0499 0.0382 0.0442
20:01-21:00, Mon., 25 Mar. 0.0434 0.0355 0.0388
19:01-20:00, Mon., 25 Mar. 0.0464 0.0384 0.0419
18:01-19:00, Mon., 25 Mar. 0.0473 0.0392 0.0441
17:01-18:00, Mon., 25 Mar. 0.0458 0.0343 0.0392
16:01-17:00, Mon., 25 Mar. 0.0366 0.0319 0.0347
15:01-16:00, Mon., 25 Mar. 0.0372 0.0328 0.0345
14:01-15:00, Mon., 25 Mar. 0.0368 0.0328 0.0352
13:01-14:00, Mon., 25 Mar. 0.0405 0.0340 0.0371
12:01-13:00, Mon., 25 Mar. 0.0445 0.0363 0.0403
11:01-12:00, Mon., 25 Mar. 0.0449 0.0371 0.0403
10:01-11:00, Mon., 25 Mar. 0.0484 0.0395 0.0439
09:01-10:00, Mon., 25 Mar. 0.0425 0.0360 0.0386
08:01-09:00, Mon., 25 Mar. 0.0417 0.0355 0.0378
07:01-08:00, Mon., 25 Mar. 0.0399 0.0348 0.0367
06:01-07:00, Mon., 25 Mar. 0.0385 0.0342 0.0365
05:01-06:00, Mon., 25 Mar. 0.0400 0.0342 0.0361
04:01-05:00, Mon., 25 Mar. 0.0384 0.0338 0.0356
03:01-04:00, Mon., 25 Mar. 0.0370 0.0321 0.0349
02:01-03:00, Mon., 25 Mar. 0.0372 0.0331 0.0349
01:01-02:00, Mon., 25 Mar. 0.0369 0.0333 0.0350
00:01-01:00, Mon., 25 Mar. 0.0367 0.0328 0.0348