Measurement results by the hour (Chofu) 29 Dec., 2014 - 4 Jan., 2015

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., 04 Jan. 0.0358 0.0321 0.0339
22:01-23:00, Sun., 04 Jan. 0.0360 0.0320 0.0338
21:01-22:00, Sun., 04 Jan. 0.0347 0.0314 0.0332
20:01-21:00, Sun., 04 Jan. 0.0362 0.0314 0.0333
19:01-20:00, Sun., 04 Jan. 0.0353 0.0308 0.0327
18:01-19:00, Sun., 04 Jan. 0.0342 0.0305 0.0322
17:01-18:00, Sun., 04 Jan. 0.0339 0.0300 0.0320
16:01-17:00, Sun., 04 Jan. 0.0349 0.0301 0.0318
15:01-16:00, Sun., 04 Jan. 0.0341 0.0292 0.0317
14:01-15:00, Sun., 04 Jan. 0.0349 0.0302 0.0322
13:01-14:00, Sun., 04 Jan. 0.0347 0.0304 0.0322
12:01-13:00, Sun., 04 Jan. 0.0351 0.0302 0.0322
11:01-12:00, Sun., 04 Jan. 0.0344 0.0302 0.0327
10:01-11:00, Sun., 04 Jan. 0.0351 0.0309 0.0330
09:01-10:00, Sun., 04 Jan. 0.0356 0.0320 0.0334
08:01-09:00, Sun., 04 Jan. 0.0357 0.0315 0.0337
07:01-08:00, Sun., 04 Jan. 0.0356 0.0314 0.0336
06:01-07:00, Sun., 04 Jan. 0.0356 0.0312 0.0337
05:01-06:00, Sun., 04 Jan. 0.0365 0.0328 0.0346
04:01-05:00, Sun., 04 Jan. 0.0363 0.0320 0.0343
03:01-04:00, Sun., 04 Jan. 0.0359 0.0312 0.0340
02:01-03:00, Sun., 04 Jan. 0.0366 0.0320 0.0340
01:01-02:00, Sun., 04 Jan. 0.0366 0.0315 0.0337
00:01-01:00, Sun., 04 Jan. 0.0357 0.0315 0.0333
23:01-24:00, Sat., 03 Jan. 0.0351 0.0309 0.0332
22:01-23:00, Sat., 03 Jan. 0.0349 0.0306 0.0328
21:01-22:00, Sat., 03 Jan. 0.0340 0.0300 0.0318
20:01-21:00, Sat., 03 Jan. 0.0334 0.0295 0.0315
19:01-20:00, Sat., 03 Jan. 0.0333 0.0289 0.0315
18:01-19:00, Sat., 03 Jan. 0.0337 0.0294 0.0317
17:01-18:00, Sat., 03 Jan. 0.0337 0.0296 0.0318
16:01-17:00, Sat., 03 Jan. 0.0336 0.0298 0.0318
15:01-16:00, Sat., 03 Jan. 0.0350 0.0298 0.0318
14:01-15:00, Sat., 03 Jan. 0.0337 0.0301 0.0317
13:01-14:00, Sat., 03 Jan. 0.0341 0.0294 0.0319
12:01-13:00, Sat., 03 Jan. 0.0340 0.0301 0.0320
11:01-12:00, Sat., 03 Jan. 0.0340 0.0303 0.0317
10:01-11:00, Sat., 03 Jan. 0.0338 0.0300 0.0321
09:01-10:00, Sat., 03 Jan. 0.0354 0.0310 0.0325
08:01-09:00, Sat., 03 Jan. 0.0343 0.0300 0.0322
07:01-08:00, Sat., 03 Jan. 0.0358 0.0306 0.0332
06:01-07:00, Sat., 03 Jan. 0.0361 0.0304 0.0337
05:01-06:00, Sat., 03 Jan. 0.0353 0.0315 0.0332
04:01-05:00, Sat., 03 Jan. 0.0356 0.0307 0.0330
03:01-04:00, Sat., 03 Jan. 0.0353 0.0305 0.0333
02:01-03:00, Sat., 03 Jan. 0.0358 0.0309 0.0327
01:01-02:00, Sat., 03 Jan. 0.0348 0.0306 0.0323
00:01-01:00, Sat., 03 Jan. 0.0343 0.0300 0.0321
23:01-24:00, Fri., 02 Jan. 0.0349 0.0296 0.0321
22:01-23:00, Fri., 02 Jan. 0.0347 0.0307 0.0326
21:01-22:00, Fri., 02 Jan. 0.0348 0.0303 0.0324
20:01-21:00, Fri., 02 Jan. 0.0350 0.0309 0.0328
19:01-20:00, Fri., 02 Jan. 0.0341 0.0306 0.0324
18:01-19:00, Fri., 02 Jan. 0.0343 0.0301 0.0322
17:01-18:00, Fri., 02 Jan. 0.0345 0.0301 0.0324
16:01-17:00, Fri., 02 Jan. 0.0342 0.0298 0.0322
15:01-16:00, Fri., 02 Jan. 0.0340 0.0300 0.0320
14:01-15:00, Fri., 02 Jan. 0.0347 0.0301 0.0321
13:01-14:00, Fri., 02 Jan. 0.0344 0.0300 0.0323
12:01-13:00, Fri., 02 Jan. 0.0349 0.0309 0.0325
11:01-12:00, Fri., 02 Jan. 0.0355 0.0307 0.0330
10:01-11:00, Fri., 02 Jan. 0.0359 0.0320 0.0340
09:01-10:00, Fri., 02 Jan. 0.0363 0.0319 0.0343
08:01-09:00, Fri., 02 Jan. 0.0369 0.0333 0.0350
07:01-08:00, Fri., 02 Jan. 0.0366 0.0329 0.0345
06:01-07:00, Fri., 02 Jan. 0.0367 0.0321 0.0347
05:01-06:00, Fri., 02 Jan. 0.0369 0.0329 0.0349
04:01-05:00, Fri., 02 Jan. 0.0361 0.0320 0.0345
03:01-04:00, Fri., 02 Jan. 0.0362 0.0319 0.0342
02:01-03:00, Fri., 02 Jan. 0.0354 0.0320 0.0338
01:01-02:00, Fri., 02 Jan. 0.0353 0.0309 0.0328
00:01-01:00, Fri., 02 Jan. 0.0347 0.0306 0.0328
23:01-24:00, Thu., 01 Jan. 0.0344 0.0305 0.0327
22:01-23:00, Thu., 01 Jan. 0.0350 0.0308 0.0327
21:01-22:00, Thu., 01 Jan. 0.0353 0.0311 0.0329
20:01-21:00, Thu., 01 Jan. 0.0346 0.0306 0.0326
19:01-20:00, Thu., 01 Jan. 0.0349 0.0308 0.0325
18:01-19:00, Thu., 01 Jan. 0.0354 0.0298 0.0326
17:01-18:00, Thu., 01 Jan. 0.0345 0.0311 0.0326
16:01-17:00, Thu., 01 Jan. 0.0364 0.0315 0.0338
15:01-16:00, Thu., 01 Jan. 0.0398 0.0336 0.0360
14:01-15:00, Thu., 01 Jan. 0.0501 0.0371 0.0437
13:01-14:00, Thu., 01 Jan. 0.0525 0.0367 0.0445
12:01-13:00, Thu., 01 Jan. 0.0422 0.0323 0.0364
11:01-12:00, Thu., 01 Jan. 0.0351 0.0308 0.0328
10:01-11:00, Thu., 01 Jan. 0.0354 0.0308 0.0331
09:01-10:00, Thu., 01 Jan. 0.0359 0.0314 0.0333
08:01-09:00, Thu., 01 Jan. 0.0348 0.0315 0.0333
07:01-08:00, Thu., 01 Jan. 0.0361 0.0309 0.0337
06:01-07:00, Thu., 01 Jan. 0.0354 0.0317 0.0339
05:01-06:00, Thu., 01 Jan. 0.0360 0.0319 0.0339
04:01-05:00, Thu., 01 Jan. 0.0352 0.0306 0.0332
03:01-04:00, Thu., 01 Jan. 0.0353 0.0314 0.0332
02:01-03:00, Thu., 01 Jan. 0.0349 0.0312 0.0330
01:01-02:00, Thu., 01 Jan. 0.0351 0.0309 0.0325
00:01-01:00, Thu., 01 Jan. 0.0350 0.0306 0.0323
23:01-24:00, Wed., 31 Dec. 0.0336 0.0298 0.0316
22:01-23:00, Wed., 31 Dec. 0.0331 0.0296 0.0315
21:01-22:00, Wed., 31 Dec. 0.0342 0.0288 0.0314
20:01-21:00, Wed., 31 Dec. 0.0338 0.0292 0.0314
19:01-20:00, Wed., 31 Dec. 0.0338 0.0297 0.0316
18:01-19:00, Wed., 31 Dec. 0.0332 0.0295 0.0315
17:01-18:00, Wed., 31 Dec. 0.0331 0.0295 0.0316
16:01-17:00, Wed., 31 Dec. 0.0338 0.0291 0.0316
15:01-16:00, Wed., 31 Dec. 0.0342 0.0304 0.0319
14:01-15:00, Wed., 31 Dec. 0.0331 0.0289 0.0314
13:01-14:00, Wed., 31 Dec. 0.0345 0.0296 0.0319
12:01-13:00, Wed., 31 Dec. 0.0341 0.0306 0.0323
11:01-12:00, Wed., 31 Dec. 0.0346 0.0309 0.0330
10:01-11:00, Wed., 31 Dec. 0.0354 0.0315 0.0332
09:01-10:00, Wed., 31 Dec. 0.0353 0.0311 0.0335
08:01-09:00, Wed., 31 Dec. 0.0362 0.0314 0.0338
07:01-08:00, Wed., 31 Dec. 0.0372 0.0313 0.0340
06:01-07:00, Wed., 31 Dec. 0.0367 0.0323 0.0342
05:01-06:00, Wed., 31 Dec. 0.0361 0.0313 0.0341
04:01-05:00, Wed., 31 Dec. 0.0362 0.0320 0.0341
03:01-04:00, Wed., 31 Dec. 0.0359 0.0316 0.0341
02:01-03:00, Wed., 31 Dec. 0.0363 0.0322 0.0340
01:01-02:00, Wed., 31 Dec. 0.0361 0.0320 0.0335
00:01-01:00, Wed., 31 Dec. 0.0351 0.0318 0.0334
23:01-24:00, Tue., 30 Dec. 0.0359 0.0311 0.0333
22:01-23:00, Tue., 30 Dec. 0.0350 0.0310 0.0332
21:01-22:00, Tue., 30 Dec. 0.0352 0.0312 0.0332
20:01-21:00, Tue., 30 Dec. 0.0351 0.0309 0.0329
19:01-20:00, Tue., 30 Dec. 0.0348 0.0307 0.0325
18:01-19:00, Tue., 30 Dec. 0.0344 0.0301 0.0322
17:01-18:00, Tue., 30 Dec. 0.0340 0.0295 0.0320
16:01-17:00, Tue., 30 Dec. 0.0342 0.0305 0.0323
15:01-16:00, Tue., 30 Dec. 0.0358 0.0315 0.0330
14:01-15:00, Tue., 30 Dec. 0.0345 0.0306 0.0326
13:01-14:00, Tue., 30 Dec. 0.0348 0.0311 0.0331
12:01-13:00, Tue., 30 Dec. 0.0344 0.0299 0.0324
11:01-12:00, Tue., 30 Dec. 0.0345 0.0298 0.0323
10:01-11:00, Tue., 30 Dec. 0.0351 0.0309 0.0331
09:01-10:00, Tue., 30 Dec. 0.0355 0.0311 0.0334
08:01-09:00, Tue., 30 Dec. 0.0366 0.0321 0.0339
07:01-08:00, Tue., 30 Dec. 0.0357 0.0309 0.0335
06:01-07:00, Tue., 30 Dec. 0.0353 0.0313 0.0333
05:01-06:00, Tue., 30 Dec. 0.0355 0.0317 0.0334
04:01-05:00, Tue., 30 Dec. 0.0356 0.0311 0.0335
03:01-04:00, Tue., 30 Dec. 0.0352 0.0314 0.0334
02:01-03:00, Tue., 30 Dec. 0.0360 0.0314 0.0339
01:01-02:00, Tue., 30 Dec. 0.0355 0.0311 0.0334
00:01-01:00, Tue., 30 Dec. 0.0351 0.0316 0.0331
23:01-24:00, Mon., 29 Dec. 0.0352 0.0309 0.0329
22:01-23:00, Mon., 29 Dec. 0.0350 0.0296 0.0326
21:01-22:00, Mon., 29 Dec. 0.0352 0.0308 0.0325
20:01-21:00, Mon., 29 Dec. 0.0344 0.0306 0.0325
19:01-20:00, Mon., 29 Dec. 0.0352 0.0311 0.0330
18:01-19:00, Mon., 29 Dec. 0.0343 0.0294 0.0329
17:01-18:00, Mon., 29 Dec. 0.0343 0.0300 0.0322
16:01-17:00, Mon., 29 Dec. 0.0339 0.0300 0.0321
15:01-16:00, Mon., 29 Dec. 0.0344 0.0300 0.0321
14:01-15:00, Mon., 29 Dec. 0.0348 0.0310 0.0327
13:01-14:00, Mon., 29 Dec. 0.0387 0.0314 0.0342
12:01-13:00, Mon., 29 Dec. 0.0437 0.0343 0.0384
11:01-12:00, Mon., 29 Dec. 0.0469 0.0397 0.0438
10:01-11:00, Mon., 29 Dec. 0.0509 0.0429 0.0467
09:01-10:00, Mon., 29 Dec. 0.0539 0.0450 0.0492
08:01-09:00, Mon., 29 Dec. 0.0548 0.0464 0.0500
07:01-08:00, Mon., 29 Dec. 0.0509 0.0395 0.0443
06:01-07:00, Mon., 29 Dec. 0.0439 0.0359 0.0391
05:01-06:00, Mon., 29 Dec. 0.0407 0.0345 0.0367
04:01-05:00, Mon., 29 Dec. 0.0387 0.0323 0.0349
03:01-04:00, Mon., 29 Dec. 0.0412 0.0345 0.0373
02:01-03:00, Mon., 29 Dec. 0.0430 0.0359 0.0392
01:01-02:00, Mon., 29 Dec. 0.0421 0.0336 0.0366
00:01-01:00, Mon., 29 Dec. 0.0363 0.0313 0.0340