Measurement results by the hour (Chofu) 30 Mar., 2015 - 5 Apr., 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., 05 Apr. 0.0324 0.0290 0.0310
22:01-23:00, Sun., 05 Apr. 0.0329 0.0287 0.0310
21:01-22:00, Sun., 05 Apr. 0.0331 0.0299 0.0312
20:01-21:00, Sun., 05 Apr. 0.0334 0.0292 0.0310
19:01-20:00, Sun., 05 Apr. 0.0327 0.0281 0.0309
18:01-19:00, Sun., 05 Apr. 0.0332 0.0293 0.0311
17:01-18:00, Sun., 05 Apr. 0.0334 0.0296 0.0312
16:01-17:00, Sun., 05 Apr. 0.0331 0.0298 0.0316
15:01-16:00, Sun., 05 Apr. 0.0362 0.0302 0.0332
14:01-15:00, Sun., 05 Apr. 0.0368 0.0326 0.0342
13:01-14:00, Sun., 05 Apr. 0.0378 0.0333 0.0358
12:01-13:00, Sun., 05 Apr. 0.0383 0.0326 0.0358
11:01-12:00, Sun., 05 Apr. 0.0405 0.0333 0.0368
10:01-11:00, Sun., 05 Apr. 0.0374 0.0306 0.0339
09:01-10:00, Sun., 05 Apr. 0.0354 0.0309 0.0331
08:01-09:00, Sun., 05 Apr. 0.0361 0.0313 0.0337
07:01-08:00, Sun., 05 Apr. 0.0412 0.0335 0.0371
06:01-07:00, Sun., 05 Apr. 0.0401 0.0321 0.0357
05:01-06:00, Sun., 05 Apr. 0.0420 0.0348 0.0378
04:01-05:00, Sun., 05 Apr. 0.0422 0.0298 0.0352
03:01-04:00, Sun., 05 Apr. 0.0334 0.0294 0.0312
02:01-03:00, Sun., 05 Apr. 0.0338 0.0300 0.0315
01:01-02:00, Sun., 05 Apr. 0.0338 0.0292 0.0313
00:01-01:00, Sun., 05 Apr. 0.0349 0.0293 0.0314
23:01-24:00, Sat., 04 Apr. 0.0330 0.0298 0.0311
22:01-23:00, Sat., 04 Apr. 0.0334 0.0287 0.0315
21:01-22:00, Sat., 04 Apr. 0.0349 0.0297 0.0313
20:01-21:00, Sat., 04 Apr. 0.0327 0.0291 0.0309
19:01-20:00, Sat., 04 Apr. 0.0327 0.0289 0.0311
18:01-19:00, Sat., 04 Apr. 0.0330 0.0295 0.0311
17:01-18:00, Sat., 04 Apr. 0.0331 0.0291 0.0311
16:01-17:00, Sat., 04 Apr. 0.0331 0.0295 0.0312
15:01-16:00, Sat., 04 Apr. 0.0330 0.0293 0.0311
14:01-15:00, Sat., 04 Apr. 0.0333 0.0292 0.0313
13:01-14:00, Sat., 04 Apr. 0.0336 0.0292 0.0314
12:01-13:00, Sat., 04 Apr. 0.0342 0.0293 0.0314
11:01-12:00, Sat., 04 Apr. 0.0335 0.0295 0.0315
10:01-11:00, Sat., 04 Apr. 0.0340 0.0302 0.0323
09:01-10:00, Sat., 04 Apr. 0.0359 0.0309 0.0335
08:01-09:00, Sat., 04 Apr. 0.0360 0.0309 0.0333
07:01-08:00, Sat., 04 Apr. 0.0342 0.0291 0.0317
06:01-07:00, Sat., 04 Apr. 0.0338 0.0296 0.0317
05:01-06:00, Sat., 04 Apr. 0.0344 0.0309 0.0324
04:01-05:00, Sat., 04 Apr. 0.0343 0.0311 0.0325
03:01-04:00, Sat., 04 Apr. 0.0340 0.0308 0.0323
02:01-03:00, Sat., 04 Apr. 0.0341 0.0301 0.0318
01:01-02:00, Sat., 04 Apr. 0.0344 0.0296 0.0323
00:01-01:00, Sat., 04 Apr. 0.0330 0.0293 0.0317
23:01-24:00, Fri., 03 Apr. 0.0335 0.0299 0.0316
22:01-23:00, Fri., 03 Apr. 0.0330 0.0296 0.0307
21:01-22:00, Fri., 03 Apr. 0.0330 0.0290 0.0310
20:01-21:00, Fri., 03 Apr. 0.0332 0.0297 0.0311
19:01-20:00, Fri., 03 Apr. 0.0330 0.0285 0.0309
18:01-19:00, Fri., 03 Apr. 0.0327 0.0290 0.0309
17:01-18:00, Fri., 03 Apr. 0.0332 0.0291 0.0311
16:01-17:00, Fri., 03 Apr. 0.0337 0.0296 0.0313
15:01-16:00, Fri., 03 Apr. 0.0331 0.0292 0.0312
14:01-15:00, Fri., 03 Apr. 0.0339 0.0291 0.0312
13:01-14:00, Fri., 03 Apr. 0.0325 0.0298 0.0313
12:01-13:00, Fri., 03 Apr. 0.0329 0.0297 0.0312
11:01-12:00, Fri., 03 Apr. 0.0338 0.0300 0.0315
10:01-11:00, Fri., 03 Apr. 0.0336 0.0293 0.0313
09:01-10:00, Fri., 03 Apr. 0.0339 0.0295 0.0313
08:01-09:00, Fri., 03 Apr. 0.0332 0.0293 0.0314
07:01-08:00, Fri., 03 Apr. 0.0335 0.0297 0.0317
06:01-07:00, Fri., 03 Apr. 0.0341 0.0299 0.0315
05:01-06:00, Fri., 03 Apr. 0.0333 0.0301 0.0314
04:01-05:00, Fri., 03 Apr. 0.0341 0.0298 0.0319
03:01-04:00, Fri., 03 Apr. 0.0341 0.0299 0.0320
02:01-03:00, Fri., 03 Apr. 0.0332 0.0294 0.0315
01:01-02:00, Fri., 03 Apr. 0.0330 0.0300 0.0315
00:01-01:00, Fri., 03 Apr. 0.0338 0.0291 0.0313
23:01-24:00, Thu., 02 Apr. 0.0332 0.0287 0.0311
22:01-23:00, Thu., 02 Apr. 0.0334 0.0287 0.0312
21:01-22:00, Thu., 02 Apr. 0.0333 0.0291 0.0312
20:01-21:00, Thu., 02 Apr. 0.0346 0.0291 0.0311
19:01-20:00, Thu., 02 Apr. 0.0337 0.0289 0.0310
18:01-19:00, Thu., 02 Apr. 0.0327 0.0297 0.0309
17:01-18:00, Thu., 02 Apr. 0.0337 0.0293 0.0310
16:01-17:00, Thu., 02 Apr. 0.0334 0.0292 0.0312
15:01-16:00, Thu., 02 Apr. 0.0333 0.0294 0.0311
14:01-15:00, Thu., 02 Apr. 0.0328 0.0293 0.0311
13:01-14:00, Thu., 02 Apr. 0.0334 0.0289 0.0310
12:01-13:00, Thu., 02 Apr. 0.0338 0.0295 0.0317
11:01-12:00, Thu., 02 Apr. 0.0330 0.0292 0.0313
10:01-11:00, Thu., 02 Apr. 0.0338 0.0299 0.0315
09:01-10:00, Thu., 02 Apr. 0.0330 0.0297 0.0314
08:01-09:00, Thu., 02 Apr. 0.0342 0.0291 0.0316
07:01-08:00, Thu., 02 Apr. 0.0332 0.0293 0.0314
06:01-07:00, Thu., 02 Apr. 0.0332 0.0292 0.0311
05:01-06:00, Thu., 02 Apr. 0.0341 0.0298 0.0315
04:01-05:00, Thu., 02 Apr. 0.0331 0.0294 0.0315
03:01-04:00, Thu., 02 Apr. 0.0337 0.0290 0.0313
02:01-03:00, Thu., 02 Apr. 0.0336 0.0291 0.0316
01:01-02:00, Thu., 02 Apr. 0.0337 0.0294 0.0315
00:01-01:00, Thu., 02 Apr. 0.0336 0.0289 0.0318
23:01-24:00, Wed., 01 Apr. 0.0389 0.0317 0.0344
22:01-23:00, Wed., 01 Apr. 0.0456 0.0356 0.0404
21:01-22:00, Wed., 01 Apr. 0.0470 0.0358 0.0404
20:01-21:00, Wed., 01 Apr. 0.0373 0.0303 0.0338
19:01-20:00, Wed., 01 Apr. 0.0346 0.0293 0.0316
18:01-19:00, Wed., 01 Apr. 0.0331 0.0295 0.0314
17:01-18:00, Wed., 01 Apr. 0.0338 0.0298 0.0316
16:01-17:00, Wed., 01 Apr. 0.0349 0.0304 0.0319
15:01-16:00, Wed., 01 Apr. 0.0350 0.0310 0.0330
14:01-15:00, Wed., 01 Apr. 0.0366 0.0318 0.0342
13:01-14:00, Wed., 01 Apr. 0.0369 0.0305 0.0336
12:01-13:00, Wed., 01 Apr. 0.0336 0.0295 0.0319
11:01-12:00, Wed., 01 Apr. 0.0339 0.0305 0.0319
10:01-11:00, Wed., 01 Apr. 0.0343 0.0303 0.0319
09:01-10:00, Wed., 01 Apr. 0.0347 0.0302 0.0323
08:01-09:00, Wed., 01 Apr. 0.0340 0.0302 0.0321
07:01-08:00, Wed., 01 Apr. 0.0348 0.0294 0.0325
06:01-07:00, Wed., 01 Apr. 0.0346 0.0306 0.0326
05:01-06:00, Wed., 01 Apr. 0.0344 0.0304 0.0325
04:01-05:00, Wed., 01 Apr. 0.0341 0.0299 0.0325
03:01-04:00, Wed., 01 Apr. 0.0344 0.0299 0.0322
02:01-03:00, Wed., 01 Apr. 0.0340 0.0301 0.0319
01:01-02:00, Wed., 01 Apr. 0.0338 0.0297 0.0315
00:01-01:00, Wed., 01 Apr. 0.0336 0.0296 0.0316
23:01-24:00, Tue., 31 Mar. 0.0331 0.0296 0.0313
22:01-23:00, Tue., 31 Mar. 0.0334 0.0293 0.0313
21:01-22:00, Tue., 31 Mar. 0.0330 0.0296 0.0311
20:01-21:00, Tue., 31 Mar. 0.0335 0.0293 0.0311
19:01-20:00, Tue., 31 Mar. 0.0326 0.0295 0.0313
18:01-19:00, Tue., 31 Mar. 0.0328 0.0292 0.0309
17:01-18:00, Tue., 31 Mar. 0.0333 0.0293 0.0311
16:01-17:00, Tue., 31 Mar. 0.0327 0.0292 0.0309
15:01-16:00, Tue., 31 Mar. 0.0331 0.0289 0.0307
14:01-15:00, Tue., 31 Mar. 0.0326 0.0287 0.0308
13:01-14:00, Tue., 31 Mar. 0.0332 0.0291 0.0308
12:01-13:00, Tue., 31 Mar. 0.0338 0.0287 0.0306
11:01-12:00, Tue., 31 Mar. 0.0328 0.0288 0.0309
10:01-11:00, Tue., 31 Mar. 0.0332 0.0291 0.0310
09:01-10:00, Tue., 31 Mar. 0.0341 0.0299 0.0316
08:01-09:00, Tue., 31 Mar. 0.0337 0.0306 0.0321
07:01-08:00, Tue., 31 Mar. 0.0342 0.0305 0.0322
06:01-07:00, Tue., 31 Mar. 0.0345 0.0306 0.0323
05:01-06:00, Tue., 31 Mar. 0.0348 0.0303 0.0321
04:01-05:00, Tue., 31 Mar. 0.0338 0.0300 0.0318
03:01-04:00, Tue., 31 Mar. 0.0336 0.0302 0.0317
02:01-03:00, Tue., 31 Mar. 0.0333 0.0293 0.0317
01:01-02:00, Tue., 31 Mar. 0.0338 0.0297 0.0317
00:01-01:00, Tue., 31 Mar. 0.0333 0.0292 0.0312
23:01-24:00, Mon., 30 Mar. 0.0337 0.0292 0.0311
22:01-23:00, Mon., 30 Mar. 0.0331 0.0288 0.0309
21:01-22:00, Mon., 30 Mar. 0.0327 0.0280 0.0309
20:01-21:00, Mon., 30 Mar. 0.0327 0.0296 0.0312
19:01-20:00, Mon., 30 Mar. 0.0324 0.0289 0.0309
18:01-19:00, Mon., 30 Mar. 0.0332 0.0287 0.0308
17:01-18:00, Mon., 30 Mar. 0.0328 0.0289 0.0307
16:01-17:00, Mon., 30 Mar. 0.0326 0.0294 0.0308
15:01-16:00, Mon., 30 Mar. 0.0331 0.0297 0.0311
14:01-15:00, Mon., 30 Mar. 0.0340 0.0292 0.0311
13:01-14:00, Mon., 30 Mar. 0.0331 0.0287 0.0312
12:01-13:00, Mon., 30 Mar. 0.0335 0.0292 0.0312
11:01-12:00, Mon., 30 Mar. 0.0339 0.0295 0.0314
10:01-11:00, Mon., 30 Mar. 0.0343 0.0293 0.0317
09:01-10:00, Mon., 30 Mar. 0.0337 0.0298 0.0319
08:01-09:00, Mon., 30 Mar. 0.0339 0.0300 0.0316
07:01-08:00, Mon., 30 Mar. 0.0351 0.0304 0.0327
06:01-07:00, Mon., 30 Mar. 0.0343 0.0303 0.0325
05:01-06:00, Mon., 30 Mar. 0.0338 0.0297 0.0320
04:01-05:00, Mon., 30 Mar. 0.0347 0.0301 0.0317
03:01-04:00, Mon., 30 Mar. 0.0336 0.0288 0.0316
02:01-03:00, Mon., 30 Mar. 0.0336 0.0295 0.0314
01:01-02:00, Mon., 30 Mar. 0.0336 0.0292 0.0313
00:01-01:00, Mon., 30 Mar. 0.0333 0.0290 0.0315