Measurement results by the hour (Chofu) 30 Dec., 2013 - 5 Jan., 2014

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., 05 Jan. 0.0360 0.0313 0.0332
22:01-23:00, Sun., 05 Jan. 0.0357 0.0311 0.0336
21:01-22:00, Sun., 05 Jan. 0.0351 0.0314 0.0333
20:01-21:00, Sun., 05 Jan. 0.0360 0.0311 0.0332
19:01-20:00, Sun., 05 Jan. 0.0351 0.0315 0.0334
18:01-19:00, Sun., 05 Jan. 0.0351 0.0310 0.0331
17:01-18:00, Sun., 05 Jan. 0.0361 0.0311 0.0332
16:01-17:00, Sun., 05 Jan. 0.0353 0.0304 0.0332
15:01-16:00, Sun., 05 Jan. 0.0357 0.0308 0.0334
14:01-15:00, Sun., 05 Jan. 0.0346 0.0309 0.0330
13:01-14:00, Sun., 05 Jan. 0.0358 0.0310 0.0329
12:01-13:00, Sun., 05 Jan. 0.0353 0.0314 0.0332
11:01-12:00, Sun., 05 Jan. 0.0353 0.0316 0.0333
10:01-11:00, Sun., 05 Jan. 0.0348 0.0301 0.0331
09:01-10:00, Sun., 05 Jan. 0.0353 0.0315 0.0335
08:01-09:00, Sun., 05 Jan. 0.0354 0.0313 0.0334
07:01-08:00, Sun., 05 Jan. 0.0354 0.0310 0.0331
06:01-07:00, Sun., 05 Jan. 0.0355 0.0312 0.0332
05:01-06:00, Sun., 05 Jan. 0.0350 0.0317 0.0332
04:01-05:00, Sun., 05 Jan. 0.0354 0.0315 0.0334
03:01-04:00, Sun., 05 Jan. 0.0356 0.0306 0.0335
02:01-03:00, Sun., 05 Jan. 0.0357 0.0315 0.0337
01:01-02:00, Sun., 05 Jan. 0.0350 0.0315 0.0335
00:01-01:00, Sun., 05 Jan. 0.0355 0.0319 0.0334
23:01-24:00, Sat., 04 Jan. 0.0357 0.0318 0.0336
22:01-23:00, Sat., 04 Jan. 0.0354 0.0320 0.0335
21:01-22:00, Sat., 04 Jan. 0.0368 0.0315 0.0334
20:01-21:00, Sat., 04 Jan. 0.0362 0.0310 0.0337
19:01-20:00, Sat., 04 Jan. 0.0352 0.0317 0.0337
18:01-19:00, Sat., 04 Jan. 0.0366 0.0323 0.0341
17:01-18:00, Sat., 04 Jan. 0.0360 0.0303 0.0340
16:01-17:00, Sat., 04 Jan. 0.0362 0.0316 0.0339
15:01-16:00, Sat., 04 Jan. 0.0359 0.0319 0.0342
14:01-15:00, Sat., 04 Jan. 0.0360 0.0319 0.0343
13:01-14:00, Sat., 04 Jan. 0.0362 0.0326 0.0345
12:01-13:00, Sat., 04 Jan. 0.0369 0.0324 0.0347
11:01-12:00, Sat., 04 Jan. 0.0372 0.0326 0.0350
10:01-11:00, Sat., 04 Jan. 0.0381 0.0333 0.0360
09:01-10:00, Sat., 04 Jan. 0.0389 0.0338 0.0365
08:01-09:00, Sat., 04 Jan. 0.0398 0.0334 0.0362
07:01-08:00, Sat., 04 Jan. 0.0400 0.0344 0.0358
06:01-07:00, Sat., 04 Jan. 0.0380 0.0342 0.0359
05:01-06:00, Sat., 04 Jan. 0.0393 0.0341 0.0362
04:01-05:00, Sat., 04 Jan. 0.0393 0.0342 0.0362
03:01-04:00, Sat., 04 Jan. 0.0392 0.0340 0.0360
02:01-03:00, Sat., 04 Jan. 0.0375 0.0342 0.0357
01:01-02:00, Sat., 04 Jan. 0.0384 0.0332 0.0358
00:01-01:00, Sat., 04 Jan. 0.0371 0.0333 0.0352
23:01-24:00, Fri., 03 Jan. 0.0370 0.0324 0.0345
22:01-23:00, Fri., 03 Jan. 0.0367 0.0322 0.0343
21:01-22:00, Fri., 03 Jan. 0.0377 0.0321 0.0347
20:01-21:00, Fri., 03 Jan. 0.0359 0.0316 0.0342
19:01-20:00, Fri., 03 Jan. 0.0369 0.0327 0.0342
18:01-19:00, Fri., 03 Jan. 0.0351 0.0310 0.0337
17:01-18:00, Fri., 03 Jan. 0.0358 0.0319 0.0336
16:01-17:00, Fri., 03 Jan. 0.0353 0.0319 0.0336
15:01-16:00, Fri., 03 Jan. 0.0360 0.0316 0.0338
14:01-15:00, Fri., 03 Jan. 0.0354 0.0317 0.0337
13:01-14:00, Fri., 03 Jan. 0.0359 0.0316 0.0339
12:01-13:00, Fri., 03 Jan. 0.0359 0.0323 0.0340
11:01-12:00, Fri., 03 Jan. 0.0370 0.0316 0.0343
10:01-11:00, Fri., 03 Jan. 0.0370 0.0319 0.0342
09:01-10:00, Fri., 03 Jan. 0.0370 0.0323 0.0349
08:01-09:00, Fri., 03 Jan. 0.0398 0.0346 0.0363
07:01-08:00, Fri., 03 Jan. 0.0393 0.0342 0.0363
06:01-07:00, Fri., 03 Jan. 0.0393 0.0337 0.0364
05:01-06:00, Fri., 03 Jan. 0.0393 0.0330 0.0357
04:01-05:00, Fri., 03 Jan. 0.0360 0.0320 0.0341
03:01-04:00, Fri., 03 Jan. 0.0352 0.0317 0.0335
02:01-03:00, Fri., 03 Jan. 0.0361 0.0313 0.0333
01:01-02:00, Fri., 03 Jan. 0.0354 0.0317 0.0336
00:01-01:00, Fri., 03 Jan. 0.0355 0.0312 0.0334
23:01-24:00, Thu., 02 Jan. 0.0352 0.0309 0.0335
22:01-23:00, Thu., 02 Jan. 0.0360 0.0310 0.0333
21:01-22:00, Thu., 02 Jan. 0.0349 0.0313 0.0333
20:01-21:00, Thu., 02 Jan. 0.0352 0.0314 0.0333
19:01-20:00, Thu., 02 Jan. 0.0350 0.0319 0.0337
18:01-19:00, Thu., 02 Jan. 0.0351 0.0322 0.0336
17:01-18:00, Thu., 02 Jan. 0.0350 0.0314 0.0334
16:01-17:00, Thu., 02 Jan. 0.0362 0.0313 0.0335
15:01-16:00, Thu., 02 Jan. 0.0352 0.0312 0.0335
14:01-15:00, Thu., 02 Jan. 0.0360 0.0311 0.0337
13:01-14:00, Thu., 02 Jan. 0.0359 0.0322 0.0338
12:01-13:00, Thu., 02 Jan. 0.0367 0.0318 0.0342
11:01-12:00, Thu., 02 Jan. 0.0361 0.0325 0.0341
10:01-11:00, Thu., 02 Jan. 0.0367 0.0325 0.0344
09:01-10:00, Thu., 02 Jan. 0.0374 0.0320 0.0344
08:01-09:00, Thu., 02 Jan. 0.0375 0.0339 0.0354
07:01-08:00, Thu., 02 Jan. 0.0374 0.0325 0.0348
06:01-07:00, Thu., 02 Jan. 0.0358 0.0330 0.0345
05:01-06:00, Thu., 02 Jan. 0.0368 0.0325 0.0345
04:01-05:00, Thu., 02 Jan. 0.0363 0.0327 0.0341
03:01-04:00, Thu., 02 Jan. 0.0365 0.0318 0.0342
02:01-03:00, Thu., 02 Jan. 0.0369 0.0313 0.0338
01:01-02:00, Thu., 02 Jan. 0.0359 0.0323 0.0344
00:01-01:00, Thu., 02 Jan. 0.0366 0.0324 0.0343
23:01-24:00, Wed., 01 Jan. 0.0365 0.0324 0.0341
22:01-23:00, Wed., 01 Jan. 0.0361 0.0320 0.0341
21:01-22:00, Wed., 01 Jan. 0.0360 0.0321 0.0338
20:01-21:00, Wed., 01 Jan. 0.0352 0.0323 0.0338
19:01-20:00, Wed., 01 Jan. 0.0363 0.0318 0.0338
18:01-19:00, Wed., 01 Jan. 0.0350 0.0313 0.0335
17:01-18:00, Wed., 01 Jan. 0.0364 0.0317 0.0336
16:01-17:00, Wed., 01 Jan. 0.0356 0.0320 0.0335
15:01-16:00, Wed., 01 Jan. 0.0351 0.0317 0.0335
14:01-15:00, Wed., 01 Jan. 0.0368 0.0318 0.0337
13:01-14:00, Wed., 01 Jan. 0.0351 0.0315 0.0337
12:01-13:00, Wed., 01 Jan. 0.0354 0.0311 0.0334
11:01-12:00, Wed., 01 Jan. 0.0351 0.0311 0.0334
10:01-11:00, Wed., 01 Jan. 0.0356 0.0317 0.0335
09:01-10:00, Wed., 01 Jan. 0.0352 0.0312 0.0333
08:01-09:00, Wed., 01 Jan. 0.0357 0.0315 0.0337
07:01-08:00, Wed., 01 Jan. 0.0362 0.0322 0.0338
06:01-07:00, Wed., 01 Jan. 0.0364 0.0317 0.0338
05:01-06:00, Wed., 01 Jan. 0.0362 0.0314 0.0341
04:01-05:00, Wed., 01 Jan. 0.0365 0.0318 0.0343
03:01-04:00, Wed., 01 Jan. 0.0372 0.0328 0.0349
02:01-03:00, Wed., 01 Jan. 0.0370 0.0337 0.0355
01:01-02:00, Wed., 01 Jan. 0.0376 0.0337 0.0354
00:01-01:00, Wed., 01 Jan. 0.0369 0.0324 0.0349
23:01-24:00, Tue., 31 Dec. 0.0363 0.0314 0.0345
22:01-23:00, Tue., 31 Dec. 0.0368 0.0332 0.0352
21:01-22:00, Tue., 31 Dec. 0.0369 0.0329 0.0348
20:01-21:00, Tue., 31 Dec. 0.0368 0.0323 0.0344
19:01-20:00, Tue., 31 Dec. 0.0358 0.0323 0.0341
18:01-19:00, Tue., 31 Dec. 0.0358 0.0312 0.0333
17:01-18:00, Tue., 31 Dec. 0.0349 0.0303 0.0330
16:01-17:00, Tue., 31 Dec. 0.0359 0.0310 0.0330
15:01-16:00, Tue., 31 Dec. 0.0351 0.0312 0.0333
14:01-15:00, Tue., 31 Dec. 0.0357 0.0313 0.0333
13:01-14:00, Tue., 31 Dec. 0.0368 0.0317 0.0338
12:01-13:00, Tue., 31 Dec. 0.0359 0.0314 0.0340
11:01-12:00, Tue., 31 Dec. 0.0364 0.0329 0.0344
10:01-11:00, Tue., 31 Dec. 0.0373 0.0326 0.0346
09:01-10:00, Tue., 31 Dec. 0.0374 0.0338 0.0354
08:01-09:00, Tue., 31 Dec. 0.0372 0.0332 0.0355
07:01-08:00, Tue., 31 Dec. 0.0383 0.0337 0.0358
06:01-07:00, Tue., 31 Dec. 0.0374 0.0342 0.0358
05:01-06:00, Tue., 31 Dec. 0.0387 0.0341 0.0360
04:01-05:00, Tue., 31 Dec. 0.0367 0.0336 0.0352
03:01-04:00, Tue., 31 Dec. 0.0365 0.0337 0.0351
02:01-03:00, Tue., 31 Dec. 0.0370 0.0322 0.0347
01:01-02:00, Tue., 31 Dec. 0.0368 0.0328 0.0352
00:01-01:00, Tue., 31 Dec. 0.0365 0.0334 0.0349
23:01-24:00, Mon., 30 Dec. 0.0368 0.0323 0.0348
22:01-23:00, Mon., 30 Dec. 0.0363 0.0315 0.0344
21:01-22:00, Mon., 30 Dec. 0.0363 0.0318 0.0342
20:01-21:00, Mon., 30 Dec. 0.0366 0.0316 0.0339
19:01-20:00, Mon., 30 Dec. 0.0356 0.0310 0.0335
18:01-19:00, Mon., 30 Dec. 0.0352 0.0319 0.0334
17:01-18:00, Mon., 30 Dec. 0.0348 0.0312 0.0330
16:01-17:00, Mon., 30 Dec. 0.0350 0.0305 0.0328
15:01-16:00, Mon., 30 Dec. 0.0347 0.0311 0.0330
14:01-15:00, Mon., 30 Dec. 0.0353 0.0314 0.0331
13:01-14:00, Mon., 30 Dec. 0.0351 0.0311 0.0331
12:01-13:00, Mon., 30 Dec. 0.0358 0.0315 0.0336
11:01-12:00, Mon., 30 Dec. 0.0352 0.0311 0.0333
10:01-11:00, Mon., 30 Dec. 0.0352 0.0315 0.0337
09:01-10:00, Mon., 30 Dec. 0.0368 0.0328 0.0343
08:01-09:00, Mon., 30 Dec. 0.0373 0.0327 0.0349
07:01-08:00, Mon., 30 Dec. 0.0372 0.0333 0.0352
06:01-07:00, Mon., 30 Dec. 0.0370 0.0333 0.0354
05:01-06:00, Mon., 30 Dec. 0.0369 0.0335 0.0353
04:01-05:00, Mon., 30 Dec. 0.0371 0.0335 0.0352
03:01-04:00, Mon., 30 Dec. 0.0369 0.0324 0.0350
02:01-03:00, Mon., 30 Dec. 0.0373 0.0319 0.0349
01:01-02:00, Mon., 30 Dec. 0.0362 0.0331 0.0347
00:01-01:00, Mon., 30 Dec. 0.0372 0.0327 0.0348