Measurement results by the hour (Chofu) 26 Jan., 2015 - 1 Feb., 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., 01 Feb. 0.0338 0.0292 0.0314
22:01-23:00, Sun., 01 Feb. 0.0331 0.0294 0.0313
21:01-22:00, Sun., 01 Feb. 0.0333 0.0292 0.0312
20:01-21:00, Sun., 01 Feb. 0.0333 0.0288 0.0311
19:01-20:00, Sun., 01 Feb. 0.0334 0.0289 0.0312
18:01-19:00, Sun., 01 Feb. 0.0333 0.0278 0.0311
17:01-18:00, Sun., 01 Feb. 0.0331 0.0291 0.0308
16:01-17:00, Sun., 01 Feb. 0.0324 0.0289 0.0307
15:01-16:00, Sun., 01 Feb. 0.0337 0.0286 0.0311
14:01-15:00, Sun., 01 Feb. 0.0327 0.0292 0.0310
13:01-14:00, Sun., 01 Feb. 0.0323 0.0293 0.0309
12:01-13:00, Sun., 01 Feb. 0.0331 0.0292 0.0311
11:01-12:00, Sun., 01 Feb. 0.0333 0.0277 0.0309
10:01-11:00, Sun., 01 Feb. 0.0325 0.0294 0.0308
09:01-10:00, Sun., 01 Feb. 0.0330 0.0281 0.0309
08:01-09:00, Sun., 01 Feb. 0.0331 0.0290 0.0310
07:01-08:00, Sun., 01 Feb. 0.0327 0.0295 0.0311
06:01-07:00, Sun., 01 Feb. 0.0325 0.0285 0.0310
05:01-06:00, Sun., 01 Feb. 0.0335 0.0292 0.0313
04:01-05:00, Sun., 01 Feb. 0.0335 0.0294 0.0314
03:01-04:00, Sun., 01 Feb. 0.0334 0.0296 0.0313
02:01-03:00, Sun., 01 Feb. 0.0326 0.0293 0.0309
01:01-02:00, Sun., 01 Feb. 0.0332 0.0293 0.0313
00:01-01:00, Sun., 01 Feb. 0.0336 0.0295 0.0313
23:01-24:00, Sat., 31 Jan. 0.0334 0.0291 0.0314
22:01-23:00, Sat., 31 Jan. 0.0337 0.0296 0.0315
21:01-22:00, Sat., 31 Jan. 0.0330 0.0288 0.0310
20:01-21:00, Sat., 31 Jan. 0.0332 0.0288 0.0312
19:01-20:00, Sat., 31 Jan. 0.0333 0.0292 0.0312
18:01-19:00, Sat., 31 Jan. 0.0333 0.0290 0.0310
17:01-18:00, Sat., 31 Jan. 0.0337 0.0289 0.0309
16:01-17:00, Sat., 31 Jan. 0.0333 0.0298 0.0314
15:01-16:00, Sat., 31 Jan. 0.0336 0.0292 0.0312
14:01-15:00, Sat., 31 Jan. 0.0337 0.0293 0.0315
13:01-14:00, Sat., 31 Jan. 0.0337 0.0292 0.0308
12:01-13:00, Sat., 31 Jan. 0.0321 0.0274 0.0302
11:01-12:00, Sat., 31 Jan. 0.0310 0.0277 0.0297
10:01-11:00, Sat., 31 Jan. 0.0313 0.0275 0.0297
09:01-10:00, Sat., 31 Jan. 0.0316 0.0272 0.0293
08:01-09:00, Sat., 31 Jan. 0.0314 0.0272 0.0294
07:01-08:00, Sat., 31 Jan. 0.0325 0.0270 0.0302
06:01-07:00, Sat., 31 Jan. 0.0331 0.0295 0.0312
05:01-06:00, Sat., 31 Jan. 0.0332 0.0288 0.0310
04:01-05:00, Sat., 31 Jan. 0.0332 0.0288 0.0309
03:01-04:00, Sat., 31 Jan. 0.0323 0.0279 0.0304
02:01-03:00, Sat., 31 Jan. 0.0317 0.0279 0.0300
01:01-02:00, Sat., 31 Jan. 0.0324 0.0279 0.0298
00:01-01:00, Sat., 31 Jan. 0.0309 0.0271 0.0295
23:01-24:00, Fri., 30 Jan. 0.0310 0.0270 0.0294
22:01-23:00, Fri., 30 Jan. 0.0319 0.0277 0.0296
21:01-22:00, Fri., 30 Jan. 0.0316 0.0280 0.0294
20:01-21:00, Fri., 30 Jan. 0.0302 0.0272 0.0290
19:01-20:00, Fri., 30 Jan. 0.0301 0.0266 0.0286
18:01-19:00, Fri., 30 Jan. 0.0312 0.0269 0.0293
17:01-18:00, Fri., 30 Jan. 0.0344 0.0283 0.0313
16:01-17:00, Fri., 30 Jan. 0.0392 0.0315 0.0353
15:01-16:00, Fri., 30 Jan. 0.0371 0.0330 0.0352
14:01-15:00, Fri., 30 Jan. 0.0365 0.0306 0.0336
13:01-14:00, Fri., 30 Jan. 0.0370 0.0314 0.0339
12:01-13:00, Fri., 30 Jan. 0.0465 0.0349 0.0408
11:01-12:00, Fri., 30 Jan. 0.0468 0.0399 0.0429
10:01-11:00, Fri., 30 Jan. 0.0461 0.0384 0.0419
09:01-10:00, Fri., 30 Jan. 0.0436 0.0365 0.0398
08:01-09:00, Fri., 30 Jan. 0.0423 0.0357 0.0378
07:01-08:00, Fri., 30 Jan. 0.0400 0.0341 0.0368
06:01-07:00, Fri., 30 Jan. 0.0405 0.0346 0.0370
05:01-06:00, Fri., 30 Jan. 0.0400 0.0347 0.0371
04:01-05:00, Fri., 30 Jan. 0.0397 0.0343 0.0368
03:01-04:00, Fri., 30 Jan. 0.0376 0.0321 0.0344
02:01-03:00, Fri., 30 Jan. 0.0343 0.0307 0.0324
01:01-02:00, Fri., 30 Jan. 0.0351 0.0311 0.0327
00:01-01:00, Fri., 30 Jan. 0.0352 0.0301 0.0323
23:01-24:00, Thu., 29 Jan. 0.0335 0.0280 0.0315
22:01-23:00, Thu., 29 Jan. 0.0336 0.0298 0.0313
21:01-22:00, Thu., 29 Jan. 0.0327 0.0294 0.0310
20:01-21:00, Thu., 29 Jan. 0.0336 0.0287 0.0309
19:01-20:00, Thu., 29 Jan. 0.0331 0.0291 0.0311
18:01-19:00, Thu., 29 Jan. 0.0329 0.0284 0.0311
17:01-18:00, Thu., 29 Jan. 0.0334 0.0292 0.0310
16:01-17:00, Thu., 29 Jan. 0.0329 0.0293 0.0311
15:01-16:00, Thu., 29 Jan. 0.0330 0.0291 0.0309
14:01-15:00, Thu., 29 Jan. 0.0341 0.0292 0.0311
13:01-14:00, Thu., 29 Jan. 0.0337 0.0294 0.0314
12:01-13:00, Thu., 29 Jan. 0.0339 0.0294 0.0314
11:01-12:00, Thu., 29 Jan. 0.0331 0.0293 0.0312
10:01-11:00, Thu., 29 Jan. 0.0337 0.0296 0.0315
09:01-10:00, Thu., 29 Jan. 0.0328 0.0291 0.0312
08:01-09:00, Thu., 29 Jan. 0.0339 0.0287 0.0312
07:01-08:00, Thu., 29 Jan. 0.0328 0.0288 0.0311
06:01-07:00, Thu., 29 Jan. 0.0329 0.0287 0.0311
05:01-06:00, Thu., 29 Jan. 0.0334 0.0285 0.0312
04:01-05:00, Thu., 29 Jan. 0.0342 0.0292 0.0313
03:01-04:00, Thu., 29 Jan. 0.0326 0.0282 0.0308
02:01-03:00, Thu., 29 Jan. 0.0327 0.0285 0.0309
01:01-02:00, Thu., 29 Jan. 0.0331 0.0294 0.0310
00:01-01:00, Thu., 29 Jan. 0.0325 0.0292 0.0312
23:01-24:00, Wed., 28 Jan. 0.0328 0.0295 0.0310
22:01-23:00, Wed., 28 Jan. 0.0329 0.0292 0.0310
21:01-22:00, Wed., 28 Jan. 0.0327 0.0291 0.0309
20:01-21:00, Wed., 28 Jan. 0.0334 0.0291 0.0309
19:01-20:00, Wed., 28 Jan. 0.0326 0.0288 0.0308
18:01-19:00, Wed., 28 Jan. 0.0330 0.0294 0.0313
17:01-18:00, Wed., 28 Jan. 0.0331 0.0292 0.0314
16:01-17:00, Wed., 28 Jan. 0.0338 0.0286 0.0311
15:01-16:00, Wed., 28 Jan. 0.0325 0.0287 0.0309
14:01-15:00, Wed., 28 Jan. 0.0329 0.0292 0.0307
13:01-14:00, Wed., 28 Jan. 0.0325 0.0289 0.0307
12:01-13:00, Wed., 28 Jan. 0.0329 0.0286 0.0309
11:01-12:00, Wed., 28 Jan. 0.0330 0.0289 0.0309
10:01-11:00, Wed., 28 Jan. 0.0335 0.0287 0.0310
09:01-10:00, Wed., 28 Jan. 0.0332 0.0292 0.0311
08:01-09:00, Wed., 28 Jan. 0.0338 0.0293 0.0317
07:01-08:00, Wed., 28 Jan. 0.0379 0.0299 0.0343
06:01-07:00, Wed., 28 Jan. 0.0517 0.0360 0.0427
05:01-06:00, Wed., 28 Jan. 0.0868 0.0503 0.0646
04:01-05:00, Wed., 28 Jan. 0.0938 0.0380 0.0727
03:01-04:00, Wed., 28 Jan. 0.0423 0.0313 0.0348
02:01-03:00, Wed., 28 Jan. 0.0354 0.0309 0.0329
01:01-02:00, Wed., 28 Jan. 0.0359 0.0311 0.0335
00:01-01:00, Wed., 28 Jan. 0.0386 0.0326 0.0351
23:01-24:00, Tue., 27 Jan. 0.0426 0.0355 0.0380
22:01-23:00, Tue., 27 Jan. 0.0530 0.0386 0.0457
21:01-22:00, Tue., 27 Jan. 0.0542 0.0320 0.0430
20:01-21:00, Tue., 27 Jan. 0.0355 0.0305 0.0326
19:01-20:00, Tue., 27 Jan. 0.0345 0.0297 0.0323
18:01-19:00, Tue., 27 Jan. 0.0340 0.0292 0.0319
17:01-18:00, Tue., 27 Jan. 0.0336 0.0290 0.0317
16:01-17:00, Tue., 27 Jan. 0.0342 0.0297 0.0319
15:01-16:00, Tue., 27 Jan. 0.0332 0.0291 0.0312
14:01-15:00, Tue., 27 Jan. 0.0334 0.0294 0.0315
13:01-14:00, Tue., 27 Jan. 0.0336 0.0295 0.0318
12:01-13:00, Tue., 27 Jan. 0.0336 0.0301 0.0319
11:01-12:00, Tue., 27 Jan. 0.0341 0.0298 0.0322
10:01-11:00, Tue., 27 Jan. 0.0344 0.0308 0.0326
09:01-10:00, Tue., 27 Jan. 0.0362 0.0309 0.0333
08:01-09:00, Tue., 27 Jan. 0.0432 0.0330 0.0378
07:01-08:00, Tue., 27 Jan. 0.0554 0.0413 0.0485
06:01-07:00, Tue., 27 Jan. 0.0536 0.0445 0.0488
05:01-06:00, Tue., 27 Jan. 0.0468 0.0378 0.0414
04:01-05:00, Tue., 27 Jan. 0.0418 0.0355 0.0385
03:01-04:00, Tue., 27 Jan. 0.0416 0.0357 0.0378
02:01-03:00, Tue., 27 Jan. 0.0430 0.0363 0.0394
01:01-02:00, Tue., 27 Jan. 0.0426 0.0358 0.0386
00:01-01:00, Tue., 27 Jan. 0.0405 0.0346 0.0366
23:01-24:00, Mon., 26 Jan. 0.0389 0.0327 0.0355
22:01-23:00, Mon., 26 Jan. 0.0370 0.0319 0.0342
21:01-22:00, Mon., 26 Jan. 0.0349 0.0303 0.0322
20:01-21:00, Mon., 26 Jan. 0.0343 0.0289 0.0317
19:01-20:00, Mon., 26 Jan. 0.0337 0.0301 0.0316
18:01-19:00, Mon., 26 Jan. 0.0341 0.0288 0.0316
17:01-18:00, Mon., 26 Jan. 0.0340 0.0286 0.0315
16:01-17:00, Mon., 26 Jan. 0.0330 0.0294 0.0314
15:01-16:00, Mon., 26 Jan. 0.0333 0.0294 0.0315
14:01-15:00, Mon., 26 Jan. 0.0336 0.0298 0.0316
13:01-14:00, Mon., 26 Jan. 0.0340 0.0288 0.0315
12:01-13:00, Mon., 26 Jan. 0.0335 0.0296 0.0318
11:01-12:00, Mon., 26 Jan. 0.0337 0.0301 0.0319
10:01-11:00, Mon., 26 Jan. 0.0344 0.0298 0.0320
09:01-10:00, Mon., 26 Jan. 0.0347 0.0304 0.0324
08:01-09:00, Mon., 26 Jan. 0.0350 0.0305 0.0324
07:01-08:00, Mon., 26 Jan. 0.0345 0.0308 0.0326
06:01-07:00, Mon., 26 Jan. 0.0345 0.0310 0.0325
05:01-06:00, Mon., 26 Jan. 0.0353 0.0306 0.0323
04:01-05:00, Mon., 26 Jan. 0.0345 0.0306 0.0322
03:01-04:00, Mon., 26 Jan. 0.0352 0.0294 0.0325
02:01-03:00, Mon., 26 Jan. 0.0357 0.0299 0.0324
01:01-02:00, Mon., 26 Jan. 0.0342 0.0308 0.0323
00:01-01:00, Mon., 26 Jan. 0.0348 0.0303 0.0325