Measurement results by the hour (Chofu) 25 Apr., 2016 - 1 May., 2016

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 May. 0.0307 0.0275 0.0295
22:01-23:00, Sun., 01 May. 0.0315 0.0276 0.0296
21:01-22:00, Sun., 01 May. 0.0310 0.0282 0.0298
20:01-21:00, Sun., 01 May. 0.0321 0.0286 0.0302
19:01-20:00, Sun., 01 May. 0.0320 0.0282 0.0298
18:01-19:00, Sun., 01 May. 0.0316 0.0276 0.0299
17:01-18:00, Sun., 01 May. 0.0320 0.0279 0.0301
16:01-17:00, Sun., 01 May. 0.0321 0.0281 0.0302
15:01-16:00, Sun., 01 May. 0.0319 0.0280 0.0299
14:01-15:00, Sun., 01 May. 0.0313 0.0282 0.0299
13:01-14:00, Sun., 01 May. 0.0318 0.0283 0.0299
12:01-13:00, Sun., 01 May. 0.0325 0.0280 0.0300
11:01-12:00, Sun., 01 May. 0.0317 0.0279 0.0299
10:01-11:00, Sun., 01 May. 0.0316 0.0281 0.0298
09:01-10:00, Sun., 01 May. 0.0315 0.0276 0.0300
08:01-09:00, Sun., 01 May. 0.0323 0.0284 0.0301
07:01-08:00, Sun., 01 May. 0.0321 0.0281 0.0302
06:01-07:00, Sun., 01 May. 0.0327 0.0286 0.0302
05:01-06:00, Sun., 01 May. 0.0320 0.0281 0.0302
04:01-05:00, Sun., 01 May. 0.0319 0.0277 0.0301
03:01-04:00, Sun., 01 May. 0.0317 0.0282 0.0300
02:01-03:00, Sun., 01 May. 0.0318 0.0271 0.0299
01:01-02:00, Sun., 01 May. 0.0321 0.0281 0.0301
00:01-01:00, Sun., 01 May. 0.0323 0.0276 0.0301
23:01-24:00, Sat., 30 Apr. 0.0319 0.0277 0.0300
22:01-23:00, Sat., 30 Apr. 0.0311 0.0278 0.0296
21:01-22:00, Sat., 30 Apr. 0.0315 0.0275 0.0298
20:01-21:00, Sat., 30 Apr. 0.0319 0.0273 0.0296
19:01-20:00, Sat., 30 Apr. 0.0317 0.0279 0.0295
18:01-19:00, Sat., 30 Apr. 0.0312 0.0273 0.0295
17:01-18:00, Sat., 30 Apr. 0.0314 0.0275 0.0293
16:01-17:00, Sat., 30 Apr. 0.0309 0.0271 0.0290
15:01-16:00, Sat., 30 Apr. 0.0309 0.0279 0.0293
14:01-15:00, Sat., 30 Apr. 0.0315 0.0265 0.0291
13:01-14:00, Sat., 30 Apr. 0.0315 0.0267 0.0292
12:01-13:00, Sat., 30 Apr. 0.0308 0.0268 0.0291
11:01-12:00, Sat., 30 Apr. 0.0309 0.0278 0.0292
10:01-11:00, Sat., 30 Apr. 0.0308 0.0276 0.0291
09:01-10:00, Sat., 30 Apr. 0.0311 0.0272 0.0295
08:01-09:00, Sat., 30 Apr. 0.0313 0.0274 0.0294
07:01-08:00, Sat., 30 Apr. 0.0321 0.0274 0.0296
06:01-07:00, Sat., 30 Apr. 0.0315 0.0280 0.0298
05:01-06:00, Sat., 30 Apr. 0.0312 0.0279 0.0297
04:01-05:00, Sat., 30 Apr. 0.0309 0.0283 0.0293
03:01-04:00, Sat., 30 Apr. 0.0321 0.0277 0.0294
02:01-03:00, Sat., 30 Apr. 0.0312 0.0273 0.0291
01:01-02:00, Sat., 30 Apr. 0.0308 0.0270 0.0290
00:01-01:00, Sat., 30 Apr. 0.0307 0.0272 0.0290
23:01-24:00, Fri., 29 Apr. 0.0311 0.0277 0.0293
22:01-23:00, Fri., 29 Apr. 0.0310 0.0272 0.0290
21:01-22:00, Fri., 29 Apr. 0.0309 0.0268 0.0290
20:01-21:00, Fri., 29 Apr. 0.0310 0.0271 0.0291
19:01-20:00, Fri., 29 Apr. 0.0313 0.0269 0.0287
18:01-19:00, Fri., 29 Apr. 0.0310 0.0270 0.0291
17:01-18:00, Fri., 29 Apr. 0.0312 0.0264 0.0289
16:01-17:00, Fri., 29 Apr. 0.0307 0.0268 0.0287
15:01-16:00, Fri., 29 Apr. 0.0309 0.0269 0.0289
14:01-15:00, Fri., 29 Apr. 0.0313 0.0271 0.0288
13:01-14:00, Fri., 29 Apr. 0.0303 0.0259 0.0288
12:01-13:00, Fri., 29 Apr. 0.0306 0.0272 0.0289
11:01-12:00, Fri., 29 Apr. 0.0315 0.0275 0.0293
10:01-11:00, Fri., 29 Apr. 0.0310 0.0270 0.0290
09:01-10:00, Fri., 29 Apr. 0.0308 0.0265 0.0292
08:01-09:00, Fri., 29 Apr. 0.0309 0.0267 0.0288
07:01-08:00, Fri., 29 Apr. 0.0304 0.0268 0.0287
06:01-07:00, Fri., 29 Apr. 0.0310 0.0270 0.0289
05:01-06:00, Fri., 29 Apr. 0.0306 0.0268 0.0286
04:01-05:00, Fri., 29 Apr. 0.0302 0.0266 0.0287
03:01-04:00, Fri., 29 Apr. 0.0311 0.0264 0.0290
02:01-03:00, Fri., 29 Apr. 0.0310 0.0256 0.0289
01:01-02:00, Fri., 29 Apr. 0.0309 0.0271 0.0293
00:01-01:00, Fri., 29 Apr. 0.0316 0.0269 0.0295
23:01-24:00, Thu., 28 Apr. 0.0332 0.0282 0.0307
22:01-23:00, Thu., 28 Apr. 0.0346 0.0288 0.0318
21:01-22:00, Thu., 28 Apr. 0.0315 0.0280 0.0296
20:01-21:00, Thu., 28 Apr. 0.0322 0.0273 0.0297
19:01-20:00, Thu., 28 Apr. 0.0330 0.0288 0.0307
18:01-19:00, Thu., 28 Apr. 0.0322 0.0268 0.0299
17:01-18:00, Thu., 28 Apr. 0.0320 0.0277 0.0297
16:01-17:00, Thu., 28 Apr. 0.0334 0.0291 0.0314
15:01-16:00, Thu., 28 Apr. 0.0339 0.0290 0.0316
14:01-15:00, Thu., 28 Apr. 0.0384 0.0311 0.0347
13:01-14:00, Thu., 28 Apr. 0.0390 0.0346 0.0364
12:01-13:00, Thu., 28 Apr. 0.0414 0.0357 0.0378
11:01-12:00, Thu., 28 Apr. 0.0423 0.0344 0.0369
10:01-11:00, Thu., 28 Apr. 0.0463 0.0362 0.0408
09:01-10:00, Thu., 28 Apr. 0.0463 0.0413 0.0439
08:01-09:00, Thu., 28 Apr. 0.0483 0.0410 0.0446
07:01-08:00, Thu., 28 Apr. 0.0458 0.0367 0.0417
06:01-07:00, Thu., 28 Apr. 0.0414 0.0358 0.0389
05:01-06:00, Thu., 28 Apr. 0.0431 0.0365 0.0396
04:01-05:00, Thu., 28 Apr. 0.0424 0.0342 0.0378
03:01-04:00, Thu., 28 Apr. 0.0354 0.0302 0.0325
02:01-03:00, Thu., 28 Apr. 0.0356 0.0310 0.0331
01:01-02:00, Thu., 28 Apr. 0.0354 0.0310 0.0336
00:01-01:00, Thu., 28 Apr. 0.0361 0.0321 0.0337
23:01-24:00, Wed., 27 Apr. 0.0363 0.0331 0.0348
22:01-23:00, Wed., 27 Apr. 0.0364 0.0298 0.0340
21:01-22:00, Wed., 27 Apr. 0.0336 0.0293 0.0312
20:01-21:00, Wed., 27 Apr. 0.0326 0.0283 0.0297
19:01-20:00, Wed., 27 Apr. 0.0316 0.0269 0.0295
18:01-19:00, Wed., 27 Apr. 0.0311 0.0273 0.0295
17:01-18:00, Wed., 27 Apr. 0.0317 0.0278 0.0295
16:01-17:00, Wed., 27 Apr. 0.0309 0.0268 0.0293
15:01-16:00, Wed., 27 Apr. 0.0313 0.0279 0.0298
14:01-15:00, Wed., 27 Apr. 0.0312 0.0270 0.0295
13:01-14:00, Wed., 27 Apr. 0.0321 0.0281 0.0298
12:01-13:00, Wed., 27 Apr. 0.0317 0.0273 0.0295
11:01-12:00, Wed., 27 Apr. 0.0313 0.0275 0.0297
10:01-11:00, Wed., 27 Apr. 0.0326 0.0272 0.0298
09:01-10:00, Wed., 27 Apr. 0.0317 0.0273 0.0296
08:01-09:00, Wed., 27 Apr. 0.0325 0.0280 0.0300
07:01-08:00, Wed., 27 Apr. 0.0333 0.0278 0.0310
06:01-07:00, Wed., 27 Apr. 0.0325 0.0289 0.0306
05:01-06:00, Wed., 27 Apr. 0.0323 0.0285 0.0305
04:01-05:00, Wed., 27 Apr. 0.0330 0.0289 0.0307
03:01-04:00, Wed., 27 Apr. 0.0324 0.0282 0.0306
02:01-03:00, Wed., 27 Apr. 0.0315 0.0275 0.0294
01:01-02:00, Wed., 27 Apr. 0.0319 0.0277 0.0295
00:01-01:00, Wed., 27 Apr. 0.0314 0.0271 0.0294
23:01-24:00, Tue., 26 Apr. 0.0307 0.0275 0.0291
22:01-23:00, Tue., 26 Apr. 0.0310 0.0275 0.0295
21:01-22:00, Tue., 26 Apr. 0.0313 0.0277 0.0295
20:01-21:00, Tue., 26 Apr. 0.0311 0.0281 0.0294
19:01-20:00, Tue., 26 Apr. 0.0317 0.0273 0.0295
18:01-19:00, Tue., 26 Apr. 0.0309 0.0273 0.0295
17:01-18:00, Tue., 26 Apr. 0.0316 0.0274 0.0294
16:01-17:00, Tue., 26 Apr. 0.0323 0.0266 0.0296
15:01-16:00, Tue., 26 Apr. 0.0314 0.0282 0.0296
14:01-15:00, Tue., 26 Apr. 0.0316 0.0277 0.0296
13:01-14:00, Tue., 26 Apr. 0.0320 0.0278 0.0297
12:01-13:00, Tue., 26 Apr. 0.0312 0.0279 0.0294
11:01-12:00, Tue., 26 Apr. 0.0312 0.0271 0.0295
10:01-11:00, Tue., 26 Apr. 0.0311 0.0283 0.0296
09:01-10:00, Tue., 26 Apr. 0.0318 0.0276 0.0294
08:01-09:00, Tue., 26 Apr. 0.0320 0.0281 0.0300
07:01-08:00, Tue., 26 Apr. 0.0333 0.0287 0.0306
06:01-07:00, Tue., 26 Apr. 0.0327 0.0286 0.0307
05:01-06:00, Tue., 26 Apr. 0.0330 0.0294 0.0309
04:01-05:00, Tue., 26 Apr. 0.0327 0.0287 0.0308
03:01-04:00, Tue., 26 Apr. 0.0324 0.0282 0.0303
02:01-03:00, Tue., 26 Apr. 0.0322 0.0272 0.0299
01:01-02:00, Tue., 26 Apr. 0.0320 0.0273 0.0296
00:01-01:00, Tue., 26 Apr. 0.0314 0.0273 0.0292
23:01-24:00, Mon., 25 Apr. 0.0317 0.0276 0.0292
22:01-23:00, Mon., 25 Apr. 0.0313 0.0267 0.0291
21:01-22:00, Mon., 25 Apr. 0.0308 0.0268 0.0291
20:01-21:00, Mon., 25 Apr. 0.0311 0.0274 0.0293
19:01-20:00, Mon., 25 Apr. 0.0309 0.0271 0.0291
18:01-19:00, Mon., 25 Apr. 0.0315 0.0273 0.0292
17:01-18:00, Mon., 25 Apr. 0.0310 0.0272 0.0293
16:01-17:00, Mon., 25 Apr. 0.0312 0.0269 0.0292
15:01-16:00, Mon., 25 Apr. 0.0310 0.0280 0.0294
14:01-15:00, Mon., 25 Apr. 0.0315 0.0273 0.0291
13:01-14:00, Mon., 25 Apr. 0.0314 0.0273 0.0293
12:01-13:00, Mon., 25 Apr. 0.0309 0.0262 0.0292
11:01-12:00, Mon., 25 Apr. 0.0313 0.0278 0.0294
10:01-11:00, Mon., 25 Apr. 0.0304 0.0276 0.0291
09:01-10:00, Mon., 25 Apr. 0.0311 0.0266 0.0291
08:01-09:00, Mon., 25 Apr. 0.0305 0.0269 0.0290
07:01-08:00, Mon., 25 Apr. 0.0314 0.0277 0.0294
06:01-07:00, Mon., 25 Apr. 0.0315 0.0272 0.0292
05:01-06:00, Mon., 25 Apr. 0.0312 0.0266 0.0291
04:01-05:00, Mon., 25 Apr. 0.0319 0.0277 0.0294
03:01-04:00, Mon., 25 Apr. 0.0310 0.0277 0.0295
02:01-03:00, Mon., 25 Apr. 0.0320 0.0279 0.0300
01:01-02:00, Mon., 25 Apr. 0.0328 0.0281 0.0301
00:01-01:00, Mon., 25 Apr. 0.0326 0.0283 0.0301