Measurement results by the hour (Chofu) 1 Feb., 2016 - 7 Feb., 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., 07 Feb. 0.0324 0.0286 0.0309
22:01-23:00, Sun., 07 Feb. 0.0324 0.0287 0.0308
21:01-22:00, Sun., 07 Feb. 0.0329 0.0291 0.0306
20:01-21:00, Sun., 07 Feb. 0.0326 0.0291 0.0309
19:01-20:00, Sun., 07 Feb. 0.0326 0.0289 0.0307
18:01-19:00, Sun., 07 Feb. 0.0325 0.0283 0.0305
17:01-18:00, Sun., 07 Feb. 0.0322 0.0277 0.0303
16:01-17:00, Sun., 07 Feb. 0.0327 0.0281 0.0307
15:01-16:00, Sun., 07 Feb. 0.0324 0.0288 0.0306
14:01-15:00, Sun., 07 Feb. 0.0327 0.0292 0.0310
13:01-14:00, Sun., 07 Feb. 0.0330 0.0289 0.0309
12:01-13:00, Sun., 07 Feb. 0.0334 0.0291 0.0310
11:01-12:00, Sun., 07 Feb. 0.0330 0.0295 0.0312
10:01-11:00, Sun., 07 Feb. 0.0332 0.0287 0.0312
09:01-10:00, Sun., 07 Feb. 0.0333 0.0297 0.0312
08:01-09:00, Sun., 07 Feb. 0.0330 0.0288 0.0309
07:01-08:00, Sun., 07 Feb. 0.0324 0.0294 0.0309
06:01-07:00, Sun., 07 Feb. 0.0334 0.0292 0.0313
05:01-06:00, Sun., 07 Feb. 0.0335 0.0294 0.0312
04:01-05:00, Sun., 07 Feb. 0.0335 0.0296 0.0314
03:01-04:00, Sun., 07 Feb. 0.0351 0.0291 0.0324
02:01-03:00, Sun., 07 Feb. 0.0377 0.0327 0.0348
01:01-02:00, Sun., 07 Feb. 0.0381 0.0324 0.0356
00:01-01:00, Sun., 07 Feb. 0.0384 0.0325 0.0352
23:01-24:00, Sat., 06 Feb. 0.0395 0.0306 0.0356
22:01-23:00, Sat., 06 Feb. 0.0342 0.0297 0.0314
21:01-22:00, Sat., 06 Feb. 0.0328 0.0287 0.0305
20:01-21:00, Sat., 06 Feb. 0.0331 0.0279 0.0305
19:01-20:00, Sat., 06 Feb. 0.0320 0.0283 0.0305
18:01-19:00, Sat., 06 Feb. 0.0323 0.0281 0.0304
17:01-18:00, Sat., 06 Feb. 0.0327 0.0285 0.0306
16:01-17:00, Sat., 06 Feb. 0.0332 0.0293 0.0309
15:01-16:00, Sat., 06 Feb. 0.0325 0.0288 0.0309
14:01-15:00, Sat., 06 Feb. 0.0328 0.0284 0.0307
13:01-14:00, Sat., 06 Feb. 0.0335 0.0288 0.0309
12:01-13:00, Sat., 06 Feb. 0.0323 0.0292 0.0308
11:01-12:00, Sat., 06 Feb. 0.0333 0.0283 0.0311
10:01-11:00, Sat., 06 Feb. 0.0336 0.0286 0.0310
09:01-10:00, Sat., 06 Feb. 0.0335 0.0292 0.0311
08:01-09:00, Sat., 06 Feb. 0.0337 0.0293 0.0313
07:01-08:00, Sat., 06 Feb. 0.0336 0.0282 0.0312
06:01-07:00, Sat., 06 Feb. 0.0329 0.0296 0.0314
05:01-06:00, Sat., 06 Feb. 0.0328 0.0293 0.0311
04:01-05:00, Sat., 06 Feb. 0.0329 0.0291 0.0311
03:01-04:00, Sat., 06 Feb. 0.0332 0.0289 0.0313
02:01-03:00, Sat., 06 Feb. 0.0338 0.0292 0.0313
01:01-02:00, Sat., 06 Feb. 0.0325 0.0297 0.0312
00:01-01:00, Sat., 06 Feb. 0.0339 0.0291 0.0309
23:01-24:00, Fri., 05 Feb. 0.0330 0.0292 0.0312
22:01-23:00, Fri., 05 Feb. 0.0336 0.0297 0.0311
21:01-22:00, Fri., 05 Feb. 0.0339 0.0287 0.0308
20:01-21:00, Fri., 05 Feb. 0.0326 0.0281 0.0305
19:01-20:00, Fri., 05 Feb. 0.0319 0.0284 0.0303
18:01-19:00, Fri., 05 Feb. 0.0326 0.0290 0.0306
17:01-18:00, Fri., 05 Feb. 0.0328 0.0288 0.0303
16:01-17:00, Fri., 05 Feb. 0.0326 0.0283 0.0304
15:01-16:00, Fri., 05 Feb. 0.0320 0.0282 0.0304
14:01-15:00, Fri., 05 Feb. 0.0330 0.0285 0.0307
13:01-14:00, Fri., 05 Feb. 0.0322 0.0285 0.0306
12:01-13:00, Fri., 05 Feb. 0.0330 0.0282 0.0308
11:01-12:00, Fri., 05 Feb. 0.0334 0.0284 0.0311
10:01-11:00, Fri., 05 Feb. 0.0342 0.0299 0.0316
09:01-10:00, Fri., 05 Feb. 0.0348 0.0299 0.0325
08:01-09:00, Fri., 05 Feb. 0.0342 0.0307 0.0326
07:01-08:00, Fri., 05 Feb. 0.0347 0.0304 0.0330
06:01-07:00, Fri., 05 Feb. 0.0363 0.0312 0.0329
05:01-06:00, Fri., 05 Feb. 0.0353 0.0304 0.0331
04:01-05:00, Fri., 05 Feb. 0.0364 0.0304 0.0328
03:01-04:00, Fri., 05 Feb. 0.0343 0.0298 0.0322
02:01-03:00, Fri., 05 Feb. 0.0337 0.0299 0.0316
01:01-02:00, Fri., 05 Feb. 0.0333 0.0289 0.0313
00:01-01:00, Fri., 05 Feb. 0.0341 0.0302 0.0320
23:01-24:00, Thu., 04 Feb. 0.0333 0.0294 0.0315
22:01-23:00, Thu., 04 Feb. 0.0328 0.0296 0.0312
21:01-22:00, Thu., 04 Feb. 0.0327 0.0287 0.0306
20:01-21:00, Thu., 04 Feb. 0.0322 0.0287 0.0304
19:01-20:00, Thu., 04 Feb. 0.0319 0.0285 0.0303
18:01-19:00, Thu., 04 Feb. 0.0320 0.0285 0.0302
17:01-18:00, Thu., 04 Feb. 0.0317 0.0278 0.0299
16:01-17:00, Thu., 04 Feb. 0.0322 0.0283 0.0301
15:01-16:00, Thu., 04 Feb. 0.0318 0.0281 0.0302
14:01-15:00, Thu., 04 Feb. 0.0326 0.0280 0.0304
13:01-14:00, Thu., 04 Feb. 0.0327 0.0286 0.0303
12:01-13:00, Thu., 04 Feb. 0.0331 0.0280 0.0305
11:01-12:00, Thu., 04 Feb. 0.0330 0.0287 0.0307
10:01-11:00, Thu., 04 Feb. 0.0325 0.0289 0.0308
09:01-10:00, Thu., 04 Feb. 0.0328 0.0288 0.0312
08:01-09:00, Thu., 04 Feb. 0.0335 0.0289 0.0315
07:01-08:00, Thu., 04 Feb. 0.0329 0.0287 0.0310
06:01-07:00, Thu., 04 Feb. 0.0334 0.0283 0.0309
05:01-06:00, Thu., 04 Feb. 0.0329 0.0286 0.0307
04:01-05:00, Thu., 04 Feb. 0.0333 0.0289 0.0308
03:01-04:00, Thu., 04 Feb. 0.0325 0.0286 0.0306
02:01-03:00, Thu., 04 Feb. 0.0323 0.0290 0.0305
01:01-02:00, Thu., 04 Feb. 0.0328 0.0285 0.0303
00:01-01:00, Thu., 04 Feb. 0.0327 0.0290 0.0305
23:01-24:00, Wed., 03 Feb. 0.0321 0.0283 0.0303
22:01-23:00, Wed., 03 Feb. 0.0327 0.0282 0.0301
21:01-22:00, Wed., 03 Feb. 0.0318 0.0279 0.0300
20:01-21:00, Wed., 03 Feb. 0.0327 0.0278 0.0301
19:01-20:00, Wed., 03 Feb. 0.0315 0.0283 0.0299
18:01-19:00, Wed., 03 Feb. 0.0318 0.0284 0.0303
17:01-18:00, Wed., 03 Feb. 0.0324 0.0288 0.0303
16:01-17:00, Wed., 03 Feb. 0.0329 0.0280 0.0304
15:01-16:00, Wed., 03 Feb. 0.0336 0.0283 0.0303
14:01-15:00, Wed., 03 Feb. 0.0324 0.0290 0.0306
13:01-14:00, Wed., 03 Feb. 0.0324 0.0290 0.0304
12:01-13:00, Wed., 03 Feb. 0.0325 0.0285 0.0303
11:01-12:00, Wed., 03 Feb. 0.0327 0.0287 0.0306
10:01-11:00, Wed., 03 Feb. 0.0325 0.0283 0.0306
09:01-10:00, Wed., 03 Feb. 0.0331 0.0283 0.0305
08:01-09:00, Wed., 03 Feb. 0.0324 0.0278 0.0306
07:01-08:00, Wed., 03 Feb. 0.0327 0.0287 0.0309
06:01-07:00, Wed., 03 Feb. 0.0321 0.0285 0.0307
05:01-06:00, Wed., 03 Feb. 0.0331 0.0289 0.0307
04:01-05:00, Wed., 03 Feb. 0.0327 0.0288 0.0306
03:01-04:00, Wed., 03 Feb. 0.0325 0.0292 0.0307
02:01-03:00, Wed., 03 Feb. 0.0325 0.0291 0.0306
01:01-02:00, Wed., 03 Feb. 0.0332 0.0280 0.0307
00:01-01:00, Wed., 03 Feb. 0.0321 0.0287 0.0304
23:01-24:00, Tue., 02 Feb. 0.0320 0.0287 0.0305
22:01-23:00, Tue., 02 Feb. 0.0319 0.0286 0.0303
21:01-22:00, Tue., 02 Feb. 0.0326 0.0283 0.0303
20:01-21:00, Tue., 02 Feb. 0.0325 0.0283 0.0304
19:01-20:00, Tue., 02 Feb. 0.0319 0.0285 0.0304
18:01-19:00, Tue., 02 Feb. 0.0320 0.0281 0.0301
17:01-18:00, Tue., 02 Feb. 0.0322 0.0272 0.0301
16:01-17:00, Tue., 02 Feb. 0.0322 0.0275 0.0302
15:01-16:00, Tue., 02 Feb. 0.0323 0.0284 0.0302
14:01-15:00, Tue., 02 Feb. 0.0326 0.0287 0.0305
13:01-14:00, Tue., 02 Feb. 0.0326 0.0281 0.0304
12:01-13:00, Tue., 02 Feb. 0.0331 0.0286 0.0306
11:01-12:00, Tue., 02 Feb. 0.0320 0.0288 0.0304
10:01-11:00, Tue., 02 Feb. 0.0321 0.0287 0.0307
09:01-10:00, Tue., 02 Feb. 0.0324 0.0282 0.0303
08:01-09:00, Tue., 02 Feb. 0.0329 0.0281 0.0303
07:01-08:00, Tue., 02 Feb. 0.0327 0.0284 0.0302
06:01-07:00, Tue., 02 Feb. 0.0331 0.0282 0.0305
05:01-06:00, Tue., 02 Feb. 0.0320 0.0280 0.0305
04:01-05:00, Tue., 02 Feb. 0.0324 0.0289 0.0303
03:01-04:00, Tue., 02 Feb. 0.0326 0.0292 0.0307
02:01-03:00, Tue., 02 Feb. 0.0334 0.0289 0.0307
01:01-02:00, Tue., 02 Feb. 0.0330 0.0290 0.0310
00:01-01:00, Tue., 02 Feb. 0.0352 0.0303 0.0323
23:01-24:00, Mon., 01 Feb. 0.0347 0.0303 0.0323
22:01-23:00, Mon., 01 Feb. 0.0343 0.0300 0.0322
21:01-22:00, Mon., 01 Feb. 0.0341 0.0290 0.0323
20:01-21:00, Mon., 01 Feb. 0.0328 0.0282 0.0307
19:01-20:00, Mon., 01 Feb. 0.0322 0.0289 0.0305
18:01-19:00, Mon., 01 Feb. 0.0324 0.0287 0.0304
17:01-18:00, Mon., 01 Feb. 0.0321 0.0287 0.0305
16:01-17:00, Mon., 01 Feb. 0.0322 0.0282 0.0305
15:01-16:00, Mon., 01 Feb. 0.0327 0.0285 0.0304
14:01-15:00, Mon., 01 Feb. 0.0324 0.0283 0.0303
13:01-14:00, Mon., 01 Feb. 0.0326 0.0286 0.0307
12:01-13:00, Mon., 01 Feb. 0.0322 0.0289 0.0306
11:01-12:00, Mon., 01 Feb. 0.0331 0.0294 0.0312
10:01-11:00, Mon., 01 Feb. 0.0325 0.0287 0.0310
09:01-10:00, Mon., 01 Feb. 0.0332 0.0292 0.0309
08:01-09:00, Mon., 01 Feb. 0.0335 0.0294 0.0313
07:01-08:00, Mon., 01 Feb. 0.0329 0.0289 0.0312
06:01-07:00, Mon., 01 Feb. 0.0338 0.0284 0.0308
05:01-06:00, Mon., 01 Feb. 0.0337 0.0294 0.0317
04:01-05:00, Mon., 01 Feb. 0.0349 0.0296 0.0320
03:01-04:00, Mon., 01 Feb. 0.0330 0.0296 0.0316
02:01-03:00, Mon., 01 Feb. 0.0336 0.0291 0.0315
01:01-02:00, Mon., 01 Feb. 0.0339 0.0299 0.0316
00:01-01:00, Mon., 01 Feb. 0.0334 0.0293 0.0313