Measurement results by the hour (Chofu) 9 Apr., 2018 - 15 Apr., 2018

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., 15 Apr. 0.0307 0.0276 0.0291
22:01-23:00, Sun., 15 Apr. 0.0306 0.0270 0.0289
21:01-22:00, Sun., 15 Apr. 0.0317 0.0268 0.0289
20:01-21:00, Sun., 15 Apr. 0.0314 0.0269 0.0287
19:01-20:00, Sun., 15 Apr. 0.0302 0.0266 0.0286
18:01-19:00, Sun., 15 Apr. 0.0306 0.0261 0.0284
17:01-18:00, Sun., 15 Apr. 0.0305 0.0268 0.0285
16:01-17:00, Sun., 15 Apr. 0.0306 0.0272 0.0288
15:01-16:00, Sun., 15 Apr. 0.0307 0.0267 0.0288
14:01-15:00, Sun., 15 Apr. 0.0308 0.0269 0.0288
13:01-14:00, Sun., 15 Apr. 0.0314 0.0269 0.0290
12:01-13:00, Sun., 15 Apr. 0.0301 0.0271 0.0287
11:01-12:00, Sun., 15 Apr. 0.0318 0.0264 0.0291
10:01-11:00, Sun., 15 Apr. 0.0322 0.0281 0.0298
09:01-10:00, Sun., 15 Apr. 0.0361 0.0300 0.0325
08:01-09:00, Sun., 15 Apr. 0.0406 0.0338 0.0372
07:01-08:00, Sun., 15 Apr. 0.0426 0.0344 0.0384
06:01-07:00, Sun., 15 Apr. 0.0369 0.0306 0.0340
05:01-06:00, Sun., 15 Apr. 0.0331 0.0280 0.0304
04:01-05:00, Sun., 15 Apr. 0.0340 0.0287 0.0311
03:01-04:00, Sun., 15 Apr. 0.0354 0.0311 0.0333
02:01-03:00, Sun., 15 Apr. 0.0359 0.0310 0.0332
01:01-02:00, Sun., 15 Apr. 0.0330 0.0278 0.0307
00:01-01:00, Sun., 15 Apr. 0.0319 0.0280 0.0297
23:01-24:00, Sat., 14 Apr. 0.0323 0.0273 0.0298
22:01-23:00, Sat., 14 Apr. 0.0320 0.0277 0.0296
21:01-22:00, Sat., 14 Apr. 0.0315 0.0275 0.0296
20:01-21:00, Sat., 14 Apr. 0.0310 0.0277 0.0293
19:01-20:00, Sat., 14 Apr. 0.0316 0.0282 0.0298
18:01-19:00, Sat., 14 Apr. 0.0319 0.0275 0.0298
17:01-18:00, Sat., 14 Apr. 0.0316 0.0278 0.0295
16:01-17:00, Sat., 14 Apr. 0.0319 0.0281 0.0300
15:01-16:00, Sat., 14 Apr. 0.0318 0.0276 0.0296
14:01-15:00, Sat., 14 Apr. 0.0322 0.0280 0.0299
13:01-14:00, Sat., 14 Apr. 0.0328 0.0280 0.0298
12:01-13:00, Sat., 14 Apr. 0.0320 0.0276 0.0297
11:01-12:00, Sat., 14 Apr. 0.0324 0.0278 0.0298
10:01-11:00, Sat., 14 Apr. 0.0336 0.0283 0.0307
09:01-10:00, Sat., 14 Apr. 0.0325 0.0287 0.0308
08:01-09:00, Sat., 14 Apr. 0.0342 0.0288 0.0306
07:01-08:00, Sat., 14 Apr. 0.0326 0.0290 0.0310
06:01-07:00, Sat., 14 Apr. 0.0329 0.0290 0.0309
05:01-06:00, Sat., 14 Apr. 0.0323 0.0283 0.0302
04:01-05:00, Sat., 14 Apr. 0.0319 0.0278 0.0299
03:01-04:00, Sat., 14 Apr. 0.0323 0.0280 0.0300
02:01-03:00, Sat., 14 Apr. 0.0316 0.0278 0.0298
01:01-02:00, Sat., 14 Apr. 0.0319 0.0270 0.0300
00:01-01:00, Sat., 14 Apr. 0.0324 0.0283 0.0299
23:01-24:00, Fri., 13 Apr. 0.0315 0.0275 0.0298
22:01-23:00, Fri., 13 Apr. 0.0318 0.0276 0.0298
21:01-22:00, Fri., 13 Apr. 0.0323 0.0281 0.0299
20:01-21:00, Fri., 13 Apr. 0.0325 0.0286 0.0300
19:01-20:00, Fri., 13 Apr. 0.0319 0.0280 0.0296
18:01-19:00, Fri., 13 Apr. 0.0319 0.0275 0.0298
17:01-18:00, Fri., 13 Apr. 0.0319 0.0282 0.0299
16:01-17:00, Fri., 13 Apr. 0.0325 0.0280 0.0299
15:01-16:00, Fri., 13 Apr. 0.0319 0.0274 0.0296
14:01-15:00, Fri., 13 Apr. 0.0311 0.0277 0.0297
13:01-14:00, Fri., 13 Apr. 0.0318 0.0284 0.0297
12:01-13:00, Fri., 13 Apr. 0.0317 0.0285 0.0299
11:01-12:00, Fri., 13 Apr. 0.0315 0.0278 0.0299
10:01-11:00, Fri., 13 Apr. 0.0323 0.0279 0.0300
09:01-10:00, Fri., 13 Apr. 0.0328 0.0277 0.0299
08:01-09:00, Fri., 13 Apr. 0.0319 0.0279 0.0300
07:01-08:00, Fri., 13 Apr. 0.0322 0.0278 0.0302
06:01-07:00, Fri., 13 Apr. 0.0323 0.0278 0.0301
05:01-06:00, Fri., 13 Apr. 0.0326 0.0279 0.0299
04:01-05:00, Fri., 13 Apr. 0.0321 0.0285 0.0301
03:01-04:00, Fri., 13 Apr. 0.0318 0.0275 0.0301
02:01-03:00, Fri., 13 Apr. 0.0324 0.0282 0.0302
01:01-02:00, Fri., 13 Apr. 0.0322 0.0283 0.0301
00:01-01:00, Fri., 13 Apr. 0.0320 0.0282 0.0302
23:01-24:00, Thu., 12 Apr. 0.0321 0.0281 0.0299
22:01-23:00, Thu., 12 Apr. 0.0316 0.0284 0.0299
21:01-22:00, Thu., 12 Apr. 0.0320 0.0274 0.0297
20:01-21:00, Thu., 12 Apr. 0.0313 0.0285 0.0296
19:01-20:00, Thu., 12 Apr. 0.0321 0.0281 0.0298
18:01-19:00, Thu., 12 Apr. 0.0318 0.0279 0.0296
17:01-18:00, Thu., 12 Apr. 0.0313 0.0275 0.0295
16:01-17:00, Thu., 12 Apr. 0.0317 0.0272 0.0294
15:01-16:00, Thu., 12 Apr. 0.0320 0.0273 0.0294
14:01-15:00, Thu., 12 Apr. 0.0320 0.0278 0.0296
13:01-14:00, Thu., 12 Apr. 0.0314 0.0279 0.0296
12:01-13:00, Thu., 12 Apr. 0.0314 0.0279 0.0297
11:01-12:00, Thu., 12 Apr. 0.0315 0.0288 0.0300
10:01-11:00, Thu., 12 Apr. 0.0334 0.0283 0.0299
09:01-10:00, Thu., 12 Apr. 0.0316 0.0279 0.0302
08:01-09:00, Thu., 12 Apr. 0.0321 0.0282 0.0302
07:01-08:00, Thu., 12 Apr. 0.0325 0.0286 0.0304
06:01-07:00, Thu., 12 Apr. 0.0320 0.0286 0.0302
05:01-06:00, Thu., 12 Apr. 0.0327 0.0279 0.0302
04:01-05:00, Thu., 12 Apr. 0.0318 0.0279 0.0299
03:01-04:00, Thu., 12 Apr. 0.0315 0.0282 0.0298
02:01-03:00, Thu., 12 Apr. 0.0319 0.0277 0.0298
01:01-02:00, Thu., 12 Apr. 0.0325 0.0272 0.0298
00:01-01:00, Thu., 12 Apr. 0.0313 0.0273 0.0292
23:01-24:00, Wed., 11 Apr. 0.0307 0.0271 0.0290
22:01-23:00, Wed., 11 Apr. 0.0310 0.0277 0.0292
21:01-22:00, Wed., 11 Apr. 0.0311 0.0269 0.0289
20:01-21:00, Wed., 11 Apr. 0.0307 0.0266 0.0289
19:01-20:00, Wed., 11 Apr. 0.0315 0.0269 0.0291
18:01-19:00, Wed., 11 Apr. 0.0310 0.0274 0.0291
17:01-18:00, Wed., 11 Apr. 0.0316 0.0279 0.0295
16:01-17:00, Wed., 11 Apr. 0.0313 0.0268 0.0289
15:01-16:00, Wed., 11 Apr. 0.0308 0.0269 0.0288
14:01-15:00, Wed., 11 Apr. 0.0311 0.0268 0.0289
13:01-14:00, Wed., 11 Apr. 0.0308 0.0267 0.0288
12:01-13:00, Wed., 11 Apr. 0.0315 0.0275 0.0293
11:01-12:00, Wed., 11 Apr. 0.0318 0.0272 0.0293
10:01-11:00, Wed., 11 Apr. 0.0317 0.0276 0.0295
09:01-10:00, Wed., 11 Apr. 0.0317 0.0276 0.0293
08:01-09:00, Wed., 11 Apr. 0.0312 0.0278 0.0294
07:01-08:00, Wed., 11 Apr. 0.0317 0.0284 0.0298
06:01-07:00, Wed., 11 Apr. 0.0320 0.0271 0.0296
05:01-06:00, Wed., 11 Apr. 0.0312 0.0274 0.0294
04:01-05:00, Wed., 11 Apr. 0.0322 0.0279 0.0300
03:01-04:00, Wed., 11 Apr. 0.0324 0.0286 0.0304
02:01-03:00, Wed., 11 Apr. 0.0322 0.0284 0.0299
01:01-02:00, Wed., 11 Apr. 0.0316 0.0281 0.0296
00:01-01:00, Wed., 11 Apr. 0.0315 0.0272 0.0296
23:01-24:00, Tue., 10 Apr. 0.0310 0.0274 0.0295
22:01-23:00, Tue., 10 Apr. 0.0317 0.0269 0.0293
21:01-22:00, Tue., 10 Apr. 0.0311 0.0273 0.0294
20:01-21:00, Tue., 10 Apr. 0.0312 0.0270 0.0295
19:01-20:00, Tue., 10 Apr. 0.0310 0.0276 0.0293
18:01-19:00, Tue., 10 Apr. 0.0310 0.0271 0.0292
17:01-18:00, Tue., 10 Apr. 0.0310 0.0270 0.0291
16:01-17:00, Tue., 10 Apr. 0.0309 0.0262 0.0289
15:01-16:00, Tue., 10 Apr. 0.0316 0.0271 0.0292
14:01-15:00, Tue., 10 Apr. 0.0314 0.0271 0.0290
13:01-14:00, Tue., 10 Apr. 0.0313 0.0273 0.0290
12:01-13:00, Tue., 10 Apr. 0.0315 0.0273 0.0294
11:01-12:00, Tue., 10 Apr. 0.0316 0.0274 0.0292
10:01-11:00, Tue., 10 Apr. 0.0317 0.0281 0.0296
09:01-10:00, Tue., 10 Apr. 0.0311 0.0277 0.0295
08:01-09:00, Tue., 10 Apr. 0.0313 0.0270 0.0296
07:01-08:00, Tue., 10 Apr. 0.0320 0.0278 0.0299
06:01-07:00, Tue., 10 Apr. 0.0314 0.0274 0.0297
05:01-06:00, Tue., 10 Apr. 0.0313 0.0273 0.0295
04:01-05:00, Tue., 10 Apr. 0.0309 0.0268 0.0292
03:01-04:00, Tue., 10 Apr. 0.0319 0.0277 0.0297
02:01-03:00, Tue., 10 Apr. 0.0329 0.0277 0.0295
01:01-02:00, Tue., 10 Apr. 0.0311 0.0277 0.0297
00:01-01:00, Tue., 10 Apr. 0.0317 0.0278 0.0295
23:01-24:00, Mon., 09 Apr. 0.0318 0.0279 0.0296
22:01-23:00, Mon., 09 Apr. 0.0317 0.0273 0.0294
21:01-22:00, Mon., 09 Apr. 0.0313 0.0276 0.0295
20:01-21:00, Mon., 09 Apr. 0.0321 0.0277 0.0296
19:01-20:00, Mon., 09 Apr. 0.0320 0.0280 0.0296
18:01-19:00, Mon., 09 Apr. 0.0319 0.0280 0.0295
17:01-18:00, Mon., 09 Apr. 0.0329 0.0277 0.0296
16:01-17:00, Mon., 09 Apr. 0.0320 0.0276 0.0295
15:01-16:00, Mon., 09 Apr. 0.0314 0.0279 0.0296
14:01-15:00, Mon., 09 Apr. 0.0316 0.0278 0.0295
13:01-14:00, Mon., 09 Apr. 0.0316 0.0274 0.0295
12:01-13:00, Mon., 09 Apr. 0.0319 0.0272 0.0296
11:01-12:00, Mon., 09 Apr. 0.0316 0.0278 0.0296
10:01-11:00, Mon., 09 Apr. 0.0321 0.0278 0.0297
09:01-10:00, Mon., 09 Apr. 0.0317 0.0282 0.0300
08:01-09:00, Mon., 09 Apr. 0.0317 0.0283 0.0302
07:01-08:00, Mon., 09 Apr. 0.0328 0.0289 0.0303
06:01-07:00, Mon., 09 Apr. 0.0334 0.0290 0.0308
05:01-06:00, Mon., 09 Apr. 0.0336 0.0286 0.0306
04:01-05:00, Mon., 09 Apr. 0.0331 0.0277 0.0303
03:01-04:00, Mon., 09 Apr. 0.0324 0.0281 0.0302
02:01-03:00, Mon., 09 Apr. 0.0316 0.0279 0.0301
01:01-02:00, Mon., 09 Apr. 0.0314 0.0280 0.0297
00:01-01:00, Mon., 09 Apr. 0.0318 0.0278 0.0302