Measurement results by the hour (Chofu) 1 Jan., 2018 - 7 Jan., 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., 07 Jan. 0.0307 0.0275 0.0293
22:01-23:00, Sun., 07 Jan. 0.0310 0.0276 0.0292
21:01-22:00, Sun., 07 Jan. 0.0313 0.0265 0.0292
20:01-21:00, Sun., 07 Jan. 0.0304 0.0272 0.0290
19:01-20:00, Sun., 07 Jan. 0.0307 0.0272 0.0289
18:01-19:00, Sun., 07 Jan. 0.0313 0.0267 0.0290
17:01-18:00, Sun., 07 Jan. 0.0304 0.0263 0.0286
16:01-17:00, Sun., 07 Jan. 0.0306 0.0271 0.0287
15:01-16:00, Sun., 07 Jan. 0.0310 0.0270 0.0290
14:01-15:00, Sun., 07 Jan. 0.0320 0.0264 0.0290
13:01-14:00, Sun., 07 Jan. 0.0317 0.0276 0.0292
12:01-13:00, Sun., 07 Jan. 0.0314 0.0268 0.0289
11:01-12:00, Sun., 07 Jan. 0.0313 0.0273 0.0291
10:01-11:00, Sun., 07 Jan. 0.0308 0.0274 0.0292
09:01-10:00, Sun., 07 Jan. 0.0309 0.0277 0.0291
08:01-09:00, Sun., 07 Jan. 0.0315 0.0273 0.0294
07:01-08:00, Sun., 07 Jan. 0.0310 0.0274 0.0292
06:01-07:00, Sun., 07 Jan. 0.0306 0.0270 0.0291
05:01-06:00, Sun., 07 Jan. 0.0306 0.0281 0.0293
04:01-05:00, Sun., 07 Jan. 0.0306 0.0277 0.0293
03:01-04:00, Sun., 07 Jan. 0.0317 0.0273 0.0294
02:01-03:00, Sun., 07 Jan. 0.0309 0.0279 0.0294
01:01-02:00, Sun., 07 Jan. 0.0313 0.0276 0.0295
00:01-01:00, Sun., 07 Jan. 0.0316 0.0274 0.0295
23:01-24:00, Sat., 06 Jan. 0.0312 0.0282 0.0297
22:01-23:00, Sat., 06 Jan. 0.0319 0.0264 0.0293
21:01-22:00, Sat., 06 Jan. 0.0319 0.0278 0.0299
20:01-21:00, Sat., 06 Jan. 0.0324 0.0279 0.0300
19:01-20:00, Sat., 06 Jan. 0.0314 0.0276 0.0294
18:01-19:00, Sat., 06 Jan. 0.0315 0.0275 0.0292
17:01-18:00, Sat., 06 Jan. 0.0313 0.0264 0.0294
16:01-17:00, Sat., 06 Jan. 0.0313 0.0275 0.0292
15:01-16:00, Sat., 06 Jan. 0.0321 0.0277 0.0296
14:01-15:00, Sat., 06 Jan. 0.0317 0.0278 0.0296
13:01-14:00, Sat., 06 Jan. 0.0324 0.0280 0.0300
12:01-13:00, Sat., 06 Jan. 0.0329 0.0283 0.0300
11:01-12:00, Sat., 06 Jan. 0.0322 0.0278 0.0300
10:01-11:00, Sat., 06 Jan. 0.0337 0.0277 0.0307
09:01-10:00, Sat., 06 Jan. 0.0342 0.0299 0.0319
08:01-09:00, Sat., 06 Jan. 0.0355 0.0305 0.0325
07:01-08:00, Sat., 06 Jan. 0.0351 0.0300 0.0325
06:01-07:00, Sat., 06 Jan. 0.0354 0.0305 0.0329
05:01-06:00, Sat., 06 Jan. 0.0352 0.0309 0.0325
04:01-05:00, Sat., 06 Jan. 0.0364 0.0307 0.0326
03:01-04:00, Sat., 06 Jan. 0.0346 0.0308 0.0325
02:01-03:00, Sat., 06 Jan. 0.0344 0.0302 0.0321
01:01-02:00, Sat., 06 Jan. 0.0349 0.0290 0.0320
00:01-01:00, Sat., 06 Jan. 0.0340 0.0296 0.0314
23:01-24:00, Fri., 05 Jan. 0.0329 0.0291 0.0310
22:01-23:00, Fri., 05 Jan. 0.0326 0.0285 0.0307
21:01-22:00, Fri., 05 Jan. 0.0316 0.0282 0.0302
20:01-21:00, Fri., 05 Jan. 0.0322 0.0275 0.0300
19:01-20:00, Fri., 05 Jan. 0.0318 0.0270 0.0296
18:01-19:00, Fri., 05 Jan. 0.0314 0.0273 0.0295
17:01-18:00, Fri., 05 Jan. 0.0309 0.0271 0.0294
16:01-17:00, Fri., 05 Jan. 0.0320 0.0275 0.0299
15:01-16:00, Fri., 05 Jan. 0.0318 0.0269 0.0296
14:01-15:00, Fri., 05 Jan. 0.0316 0.0282 0.0295
13:01-14:00, Fri., 05 Jan. 0.0315 0.0279 0.0296
12:01-13:00, Fri., 05 Jan. 0.0319 0.0278 0.0296
11:01-12:00, Fri., 05 Jan. 0.0310 0.0277 0.0294
10:01-11:00, Fri., 05 Jan. 0.0316 0.0280 0.0296
09:01-10:00, Fri., 05 Jan. 0.0319 0.0276 0.0296
08:01-09:00, Fri., 05 Jan. 0.0316 0.0279 0.0297
07:01-08:00, Fri., 05 Jan. 0.0316 0.0282 0.0297
06:01-07:00, Fri., 05 Jan. 0.0315 0.0279 0.0298
05:01-06:00, Fri., 05 Jan. 0.0319 0.0280 0.0298
04:01-05:00, Fri., 05 Jan. 0.0314 0.0278 0.0298
03:01-04:00, Fri., 05 Jan. 0.0319 0.0281 0.0299
02:01-03:00, Fri., 05 Jan. 0.0315 0.0280 0.0297
01:01-02:00, Fri., 05 Jan. 0.0318 0.0273 0.0300
00:01-01:00, Fri., 05 Jan. 0.0318 0.0278 0.0299
23:01-24:00, Thu., 04 Jan. 0.0316 0.0280 0.0296
22:01-23:00, Thu., 04 Jan. 0.0314 0.0279 0.0297
21:01-22:00, Thu., 04 Jan. 0.0324 0.0273 0.0299
20:01-21:00, Thu., 04 Jan. 0.0319 0.0280 0.0297
19:01-20:00, Thu., 04 Jan. 0.0315 0.0277 0.0295
18:01-19:00, Thu., 04 Jan. 0.0321 0.0278 0.0296
17:01-18:00, Thu., 04 Jan. 0.0316 0.0275 0.0295
16:01-17:00, Thu., 04 Jan. 0.0319 0.0274 0.0294
15:01-16:00, Thu., 04 Jan. 0.0312 0.0280 0.0295
14:01-15:00, Thu., 04 Jan. 0.0325 0.0277 0.0294
13:01-14:00, Thu., 04 Jan. 0.0310 0.0268 0.0292
12:01-13:00, Thu., 04 Jan. 0.0309 0.0280 0.0294
11:01-12:00, Thu., 04 Jan. 0.0314 0.0280 0.0297
10:01-11:00, Thu., 04 Jan. 0.0332 0.0273 0.0300
09:01-10:00, Thu., 04 Jan. 0.0327 0.0280 0.0299
08:01-09:00, Thu., 04 Jan. 0.0315 0.0277 0.0299
07:01-08:00, Thu., 04 Jan. 0.0330 0.0278 0.0298
06:01-07:00, Thu., 04 Jan. 0.0318 0.0284 0.0299
05:01-06:00, Thu., 04 Jan. 0.0317 0.0275 0.0294
04:01-05:00, Thu., 04 Jan. 0.0318 0.0280 0.0298
03:01-04:00, Thu., 04 Jan. 0.0313 0.0273 0.0295
02:01-03:00, Thu., 04 Jan. 0.0318 0.0277 0.0295
01:01-02:00, Thu., 04 Jan. 0.0308 0.0278 0.0293
00:01-01:00, Thu., 04 Jan. 0.0315 0.0271 0.0293
23:01-24:00, Wed., 03 Jan. 0.0316 0.0266 0.0292
22:01-23:00, Wed., 03 Jan. 0.0312 0.0277 0.0293
21:01-22:00, Wed., 03 Jan. 0.0313 0.0272 0.0295
20:01-21:00, Wed., 03 Jan. 0.0320 0.0273 0.0295
19:01-20:00, Wed., 03 Jan. 0.0314 0.0273 0.0293
18:01-19:00, Wed., 03 Jan. 0.0320 0.0281 0.0298
17:01-18:00, Wed., 03 Jan. 0.0312 0.0280 0.0296
16:01-17:00, Wed., 03 Jan. 0.0318 0.0281 0.0299
15:01-16:00, Wed., 03 Jan. 0.0322 0.0286 0.0302
14:01-15:00, Wed., 03 Jan. 0.0319 0.0287 0.0301
13:01-14:00, Wed., 03 Jan. 0.0324 0.0284 0.0302
12:01-13:00, Wed., 03 Jan. 0.0334 0.0279 0.0306
11:01-12:00, Wed., 03 Jan. 0.0326 0.0292 0.0311
10:01-11:00, Wed., 03 Jan. 0.0330 0.0289 0.0309
09:01-10:00, Wed., 03 Jan. 0.0322 0.0289 0.0307
08:01-09:00, Wed., 03 Jan. 0.0337 0.0291 0.0310
07:01-08:00, Wed., 03 Jan. 0.0340 0.0292 0.0308
06:01-07:00, Wed., 03 Jan. 0.0327 0.0292 0.0308
05:01-06:00, Wed., 03 Jan. 0.0325 0.0284 0.0306
04:01-05:00, Wed., 03 Jan. 0.0318 0.0281 0.0299
03:01-04:00, Wed., 03 Jan. 0.0314 0.0279 0.0297
02:01-03:00, Wed., 03 Jan. 0.0315 0.0268 0.0296
01:01-02:00, Wed., 03 Jan. 0.0326 0.0278 0.0299
00:01-01:00, Wed., 03 Jan. 0.0321 0.0278 0.0300
23:01-24:00, Tue., 02 Jan. 0.0317 0.0284 0.0298
22:01-23:00, Tue., 02 Jan. 0.0317 0.0272 0.0296
21:01-22:00, Tue., 02 Jan. 0.0315 0.0275 0.0295
20:01-21:00, Tue., 02 Jan. 0.0316 0.0280 0.0295
19:01-20:00, Tue., 02 Jan. 0.0313 0.0277 0.0296
18:01-19:00, Tue., 02 Jan. 0.0320 0.0280 0.0296
17:01-18:00, Tue., 02 Jan. 0.0322 0.0276 0.0296
16:01-17:00, Tue., 02 Jan. 0.0307 0.0278 0.0292
15:01-16:00, Tue., 02 Jan. 0.0320 0.0278 0.0295
14:01-15:00, Tue., 02 Jan. 0.0316 0.0281 0.0298
13:01-14:00, Tue., 02 Jan. 0.0318 0.0280 0.0299
12:01-13:00, Tue., 02 Jan. 0.0315 0.0281 0.0297
11:01-12:00, Tue., 02 Jan. 0.0322 0.0288 0.0301
10:01-11:00, Tue., 02 Jan. 0.0328 0.0286 0.0304
09:01-10:00, Tue., 02 Jan. 0.0320 0.0286 0.0301
08:01-09:00, Tue., 02 Jan. 0.0324 0.0283 0.0304
07:01-08:00, Tue., 02 Jan. 0.0320 0.0287 0.0305
06:01-07:00, Tue., 02 Jan. 0.0344 0.0284 0.0307
05:01-06:00, Tue., 02 Jan. 0.0327 0.0281 0.0305
04:01-05:00, Tue., 02 Jan. 0.0321 0.0286 0.0303
03:01-04:00, Tue., 02 Jan. 0.0323 0.0287 0.0303
02:01-03:00, Tue., 02 Jan. 0.0327 0.0275 0.0304
01:01-02:00, Tue., 02 Jan. 0.0322 0.0281 0.0301
00:01-01:00, Tue., 02 Jan. 0.0318 0.0274 0.0298
23:01-24:00, Mon., 01 Jan. 0.0319 0.0278 0.0301
22:01-23:00, Mon., 01 Jan. 0.0322 0.0276 0.0301
21:01-22:00, Mon., 01 Jan. 0.0318 0.0276 0.0299
20:01-21:00, Mon., 01 Jan. 0.0319 0.0278 0.0298
19:01-20:00, Mon., 01 Jan. 0.0320 0.0283 0.0301
18:01-19:00, Mon., 01 Jan. 0.0317 0.0275 0.0297
17:01-18:00, Mon., 01 Jan. 0.0314 0.0279 0.0295
16:01-17:00, Mon., 01 Jan. 0.0312 0.0273 0.0292
15:01-16:00, Mon., 01 Jan. 0.0314 0.0285 0.0297
14:01-15:00, Mon., 01 Jan. 0.0319 0.0272 0.0297
13:01-14:00, Mon., 01 Jan. 0.0319 0.0278 0.0299
12:01-13:00, Mon., 01 Jan. 0.0318 0.0275 0.0300
11:01-12:00, Mon., 01 Jan. 0.0338 0.0288 0.0308
10:01-11:00, Mon., 01 Jan. 0.0341 0.0288 0.0313
09:01-10:00, Mon., 01 Jan. 0.0340 0.0296 0.0317
08:01-09:00, Mon., 01 Jan. 0.0352 0.0301 0.0326
07:01-08:00, Mon., 01 Jan. 0.0354 0.0309 0.0330
06:01-07:00, Mon., 01 Jan. 0.0356 0.0311 0.0333
05:01-06:00, Mon., 01 Jan. 0.0349 0.0306 0.0328
04:01-05:00, Mon., 01 Jan. 0.0347 0.0303 0.0322
03:01-04:00, Mon., 01 Jan. 0.0355 0.0303 0.0324
02:01-03:00, Mon., 01 Jan. 0.0348 0.0304 0.0323
01:01-02:00, Mon., 01 Jan. 0.0341 0.0297 0.0324
00:01-01:00, Mon., 01 Jan. 0.0342 0.0302 0.0322