Measurement results by the hour (Chofu) 18 Jan., 2021 - 24 Jan., 2021

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., 24 Jan. 0.0369 0.0326 0.0350
22:01-23:00, Sun., 24 Jan. 0.0398 0.0331 0.0360
21:01-22:00, Sun., 24 Jan. 0.0369 0.0323 0.0346
20:01-21:00, Sun., 24 Jan. 0.0363 0.0316 0.0337
19:01-20:00, Sun., 24 Jan. 0.0362 0.0299 0.0330
18:01-19:00, Sun., 24 Jan. 0.0332 0.0275 0.0306
17:01-18:00, Sun., 24 Jan. 0.0309 0.0276 0.0289
16:01-17:00, Sun., 24 Jan. 0.0301 0.0269 0.0283
15:01-16:00, Sun., 24 Jan. 0.0303 0.0266 0.0287
14:01-15:00, Sun., 24 Jan. 0.0302 0.0270 0.0287
13:01-14:00, Sun., 24 Jan. 0.0315 0.0270 0.0295
12:01-13:00, Sun., 24 Jan. 0.0359 0.0298 0.0325
11:01-12:00, Sun., 24 Jan. 0.0412 0.0343 0.0371
10:01-11:00, Sun., 24 Jan. 0.0463 0.0361 0.0410
09:01-10:00, Sun., 24 Jan. 0.0470 0.0415 0.0438
08:01-09:00, Sun., 24 Jan. 0.0457 0.0355 0.0397
07:01-08:00, Sun., 24 Jan. 0.0388 0.0334 0.0357
06:01-07:00, Sun., 24 Jan. 0.0411 0.0332 0.0367
05:01-06:00, Sun., 24 Jan. 0.0468 0.0391 0.0428
04:01-05:00, Sun., 24 Jan. 0.0485 0.0400 0.0442
03:01-04:00, Sun., 24 Jan. 0.0474 0.0394 0.0438
02:01-03:00, Sun., 24 Jan. 0.0462 0.0406 0.0433
01:01-02:00, Sun., 24 Jan. 0.0447 0.0362 0.0405
00:01-01:00, Sun., 24 Jan. 0.0457 0.0378 0.0417
23:01-24:00, Sat., 23 Jan. 0.0474 0.0405 0.0441
22:01-23:00, Sat., 23 Jan. 0.0530 0.0431 0.0476
21:01-22:00, Sat., 23 Jan. 0.0521 0.0435 0.0481
20:01-21:00, Sat., 23 Jan. 0.0519 0.0446 0.0488
19:01-20:00, Sat., 23 Jan. 0.0551 0.0470 0.0507
18:01-19:00, Sat., 23 Jan. 0.0508 0.0420 0.0460
17:01-18:00, Sat., 23 Jan. 0.0471 0.0409 0.0445
16:01-17:00, Sat., 23 Jan. 0.0510 0.0439 0.0468
15:01-16:00, Sat., 23 Jan. 0.0585 0.0451 0.0512
14:01-15:00, Sat., 23 Jan. 0.0562 0.0485 0.0519
13:01-14:00, Sat., 23 Jan. 0.0558 0.0454 0.0502
12:01-13:00, Sat., 23 Jan. 0.0513 0.0415 0.0457
11:01-12:00, Sat., 23 Jan. 0.0506 0.0413 0.0458
10:01-11:00, Sat., 23 Jan. 0.0480 0.0394 0.0437
09:01-10:00, Sat., 23 Jan. 0.0427 0.0312 0.0365
08:01-09:00, Sat., 23 Jan. 0.0332 0.0282 0.0298
07:01-08:00, Sat., 23 Jan. 0.0315 0.0267 0.0293
06:01-07:00, Sat., 23 Jan. 0.0315 0.0278 0.0295
05:01-06:00, Sat., 23 Jan. 0.0319 0.0280 0.0298
04:01-05:00, Sat., 23 Jan. 0.0325 0.0282 0.0301
03:01-04:00, Sat., 23 Jan. 0.0324 0.0283 0.0301
02:01-03:00, Sat., 23 Jan. 0.0320 0.0281 0.0305
01:01-02:00, Sat., 23 Jan. 0.0321 0.0283 0.0305
00:01-01:00, Sat., 23 Jan. 0.0328 0.0283 0.0308
23:01-24:00, Fri., 22 Jan. 0.0328 0.0284 0.0305
22:01-23:00, Fri., 22 Jan. 0.0328 0.0292 0.0310
21:01-22:00, Fri., 22 Jan. 0.0328 0.0286 0.0306
20:01-21:00, Fri., 22 Jan. 0.0331 0.0287 0.0305
19:01-20:00, Fri., 22 Jan. 0.0325 0.0277 0.0303
18:01-19:00, Fri., 22 Jan. 0.0329 0.0277 0.0298
17:01-18:00, Fri., 22 Jan. 0.0312 0.0268 0.0295
16:01-17:00, Fri., 22 Jan. 0.0315 0.0280 0.0296
15:01-16:00, Fri., 22 Jan. 0.0322 0.0280 0.0299
14:01-15:00, Fri., 22 Jan. 0.0319 0.0278 0.0299
13:01-14:00, Fri., 22 Jan. 0.0317 0.0276 0.0298
12:01-13:00, Fri., 22 Jan. 0.0323 0.0287 0.0304
11:01-12:00, Fri., 22 Jan. 0.0336 0.0289 0.0308
10:01-11:00, Fri., 22 Jan. 0.0334 0.0291 0.0313
09:01-10:00, Fri., 22 Jan. 0.0336 0.0297 0.0317
08:01-09:00, Fri., 22 Jan. 0.0365 0.0306 0.0330
07:01-08:00, Fri., 22 Jan. 0.0356 0.0306 0.0334
06:01-07:00, Fri., 22 Jan. 0.0346 0.0307 0.0327
05:01-06:00, Fri., 22 Jan. 0.0356 0.0307 0.0330
04:01-05:00, Fri., 22 Jan. 0.0347 0.0308 0.0330
03:01-04:00, Fri., 22 Jan. 0.0346 0.0306 0.0326
02:01-03:00, Fri., 22 Jan. 0.0346 0.0304 0.0325
01:01-02:00, Fri., 22 Jan. 0.0349 0.0303 0.0319
00:01-01:00, Fri., 22 Jan. 0.0341 0.0296 0.0316
23:01-24:00, Thu., 21 Jan. 0.0334 0.0295 0.0315
22:01-23:00, Thu., 21 Jan. 0.0333 0.0295 0.0315
21:01-22:00, Thu., 21 Jan. 0.0324 0.0287 0.0307
20:01-21:00, Thu., 21 Jan. 0.0321 0.0283 0.0302
19:01-20:00, Thu., 21 Jan. 0.0314 0.0274 0.0296
18:01-19:00, Thu., 21 Jan. 0.0321 0.0281 0.0295
17:01-18:00, Thu., 21 Jan. 0.0310 0.0272 0.0292
16:01-17:00, Thu., 21 Jan. 0.0309 0.0275 0.0293
15:01-16:00, Thu., 21 Jan. 0.0318 0.0276 0.0294
14:01-15:00, Thu., 21 Jan. 0.0314 0.0273 0.0294
13:01-14:00, Thu., 21 Jan. 0.0319 0.0272 0.0295
12:01-13:00, Thu., 21 Jan. 0.0316 0.0278 0.0297
11:01-12:00, Thu., 21 Jan. 0.0323 0.0278 0.0297
10:01-11:00, Thu., 21 Jan. 0.0327 0.0282 0.0301
09:01-10:00, Thu., 21 Jan. 0.0323 0.0288 0.0305
08:01-09:00, Thu., 21 Jan. 0.0335 0.0294 0.0311
07:01-08:00, Thu., 21 Jan. 0.0333 0.0288 0.0307
06:01-07:00, Thu., 21 Jan. 0.0327 0.0286 0.0307
05:01-06:00, Thu., 21 Jan. 0.0321 0.0290 0.0304
04:01-05:00, Thu., 21 Jan. 0.0329 0.0277 0.0303
03:01-04:00, Thu., 21 Jan. 0.0328 0.0277 0.0301
02:01-03:00, Thu., 21 Jan. 0.0329 0.0274 0.0301
01:01-02:00, Thu., 21 Jan. 0.0324 0.0284 0.0301
00:01-01:00, Thu., 21 Jan. 0.0329 0.0285 0.0303
23:01-24:00, Wed., 20 Jan. 0.0324 0.0285 0.0301
22:01-23:00, Wed., 20 Jan. 0.0326 0.0281 0.0301
21:01-22:00, Wed., 20 Jan. 0.0318 0.0267 0.0294
20:01-21:00, Wed., 20 Jan. 0.0305 0.0272 0.0289
19:01-20:00, Wed., 20 Jan. 0.0308 0.0265 0.0285
18:01-19:00, Wed., 20 Jan. 0.0310 0.0266 0.0286
17:01-18:00, Wed., 20 Jan. 0.0305 0.0267 0.0284
16:01-17:00, Wed., 20 Jan. 0.0304 0.0268 0.0285
15:01-16:00, Wed., 20 Jan. 0.0305 0.0271 0.0286
14:01-15:00, Wed., 20 Jan. 0.0304 0.0262 0.0287
13:01-14:00, Wed., 20 Jan. 0.0306 0.0271 0.0285
12:01-13:00, Wed., 20 Jan. 0.0310 0.0268 0.0290
11:01-12:00, Wed., 20 Jan. 0.0311 0.0266 0.0287
10:01-11:00, Wed., 20 Jan. 0.0305 0.0268 0.0288
09:01-10:00, Wed., 20 Jan. 0.0306 0.0267 0.0287
08:01-09:00, Wed., 20 Jan. 0.0321 0.0275 0.0289
07:01-08:00, Wed., 20 Jan. 0.0311 0.0269 0.0288
06:01-07:00, Wed., 20 Jan. 0.0315 0.0271 0.0287
05:01-06:00, Wed., 20 Jan. 0.0317 0.0268 0.0291
04:01-05:00, Wed., 20 Jan. 0.0311 0.0275 0.0291
03:01-04:00, Wed., 20 Jan. 0.0315 0.0270 0.0295
02:01-03:00, Wed., 20 Jan. 0.0306 0.0270 0.0290
01:01-02:00, Wed., 20 Jan. 0.0310 0.0272 0.0290
00:01-01:00, Wed., 20 Jan. 0.0315 0.0276 0.0293
23:01-24:00, Tue., 19 Jan. 0.0313 0.0271 0.0290
22:01-23:00, Tue., 19 Jan. 0.0309 0.0266 0.0291
21:01-22:00, Tue., 19 Jan. 0.0312 0.0275 0.0290
20:01-21:00, Tue., 19 Jan. 0.0308 0.0274 0.0290
19:01-20:00, Tue., 19 Jan. 0.0316 0.0270 0.0289
18:01-19:00, Tue., 19 Jan. 0.0307 0.0270 0.0291
17:01-18:00, Tue., 19 Jan. 0.0313 0.0273 0.0290
16:01-17:00, Tue., 19 Jan. 0.0309 0.0276 0.0292
15:01-16:00, Tue., 19 Jan. 0.0310 0.0273 0.0294
14:01-15:00, Tue., 19 Jan. 0.0312 0.0280 0.0294
13:01-14:00, Tue., 19 Jan. 0.0312 0.0270 0.0294
12:01-13:00, Tue., 19 Jan. 0.0318 0.0276 0.0296
11:01-12:00, Tue., 19 Jan. 0.0323 0.0277 0.0297
10:01-11:00, Tue., 19 Jan. 0.0319 0.0285 0.0297
09:01-10:00, Tue., 19 Jan. 0.0312 0.0272 0.0293
08:01-09:00, Tue., 19 Jan. 0.0321 0.0276 0.0295
07:01-08:00, Tue., 19 Jan. 0.0318 0.0275 0.0301
06:01-07:00, Tue., 19 Jan. 0.0320 0.0288 0.0302
05:01-06:00, Tue., 19 Jan. 0.0320 0.0275 0.0295
04:01-05:00, Tue., 19 Jan. 0.0316 0.0282 0.0296
03:01-04:00, Tue., 19 Jan. 0.0309 0.0273 0.0294
02:01-03:00, Tue., 19 Jan. 0.0310 0.0277 0.0293
01:01-02:00, Tue., 19 Jan. 0.0315 0.0272 0.0291
00:01-01:00, Tue., 19 Jan. 0.0322 0.0274 0.0295
23:01-24:00, Mon., 18 Jan. 0.0315 0.0268 0.0293
22:01-23:00, Mon., 18 Jan. 0.0309 0.0275 0.0295
21:01-22:00, Mon., 18 Jan. 0.0319 0.0282 0.0303
20:01-21:00, Mon., 18 Jan. 0.0325 0.0282 0.0303
19:01-20:00, Mon., 18 Jan. 0.0320 0.0279 0.0295
18:01-19:00, Mon., 18 Jan. 0.0304 0.0278 0.0292
17:01-18:00, Mon., 18 Jan. 0.0310 0.0271 0.0292
16:01-17:00, Mon., 18 Jan. 0.0307 0.0274 0.0291
15:01-16:00, Mon., 18 Jan. 0.0313 0.0268 0.0294
14:01-15:00, Mon., 18 Jan. 0.0318 0.0273 0.0294
13:01-14:00, Mon., 18 Jan. 0.0320 0.0281 0.0300
12:01-13:00, Mon., 18 Jan. 0.0325 0.0278 0.0300
11:01-12:00, Mon., 18 Jan. 0.0326 0.0272 0.0301
10:01-11:00, Mon., 18 Jan. 0.0325 0.0285 0.0306
09:01-10:00, Mon., 18 Jan. 0.0332 0.0290 0.0306
08:01-09:00, Mon., 18 Jan. 0.0326 0.0282 0.0304
07:01-08:00, Mon., 18 Jan. 0.0322 0.0282 0.0303
06:01-07:00, Mon., 18 Jan. 0.0325 0.0283 0.0303
05:01-06:00, Mon., 18 Jan. 0.0321 0.0283 0.0301
04:01-05:00, Mon., 18 Jan. 0.0330 0.0282 0.0305
03:01-04:00, Mon., 18 Jan. 0.0318 0.0282 0.0302
02:01-03:00, Mon., 18 Jan. 0.0321 0.0283 0.0302
01:01-02:00, Mon., 18 Jan. 0.0317 0.0279 0.0301
00:01-01:00, Mon., 18 Jan. 0.0320 0.0283 0.0303