Measurement results by the hour (Hachioji) 28 Dec., 2020 - 3 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., 03 Jan. 0.0348 0.0303 0.0326
22:01-23:00, Sun., 03 Jan. 0.0345 0.0309 0.0328
21:01-22:00, Sun., 03 Jan. 0.0349 0.0298 0.0327
20:01-21:00, Sun., 03 Jan. 0.0338 0.0307 0.0322
19:01-20:00, Sun., 03 Jan. 0.0346 0.0300 0.0322
18:01-19:00, Sun., 03 Jan. 0.0343 0.0288 0.0321
17:01-18:00, Sun., 03 Jan. 0.0351 0.0304 0.0325
16:01-17:00, Sun., 03 Jan. 0.0346 0.0302 0.0322
15:01-16:00, Sun., 03 Jan. 0.0342 0.0310 0.0326
14:01-15:00, Sun., 03 Jan. 0.0346 0.0307 0.0325
13:01-14:00, Sun., 03 Jan. 0.0341 0.0305 0.0323
12:01-13:00, Sun., 03 Jan. 0.0349 0.0301 0.0324
11:01-12:00, Sun., 03 Jan. 0.0352 0.0309 0.0327
10:01-11:00, Sun., 03 Jan. 0.0360 0.0305 0.0332
09:01-10:00, Sun., 03 Jan. 0.0358 0.0315 0.0335
08:01-09:00, Sun., 03 Jan. 0.0371 0.0320 0.0347
07:01-08:00, Sun., 03 Jan. 0.0363 0.0323 0.0343
06:01-07:00, Sun., 03 Jan. 0.0358 0.0321 0.0339
05:01-06:00, Sun., 03 Jan. 0.0357 0.0306 0.0336
04:01-05:00, Sun., 03 Jan. 0.0354 0.0314 0.0329
03:01-04:00, Sun., 03 Jan. 0.0354 0.0306 0.0333
02:01-03:00, Sun., 03 Jan. 0.0349 0.0304 0.0329
01:01-02:00, Sun., 03 Jan. 0.0342 0.0306 0.0323
00:01-01:00, Sun., 03 Jan. 0.0351 0.0306 0.0323
23:01-24:00, Sat., 02 Jan. 0.0343 0.0295 0.0321
22:01-23:00, Sat., 02 Jan. 0.0345 0.0298 0.0322
21:01-22:00, Sat., 02 Jan. 0.0346 0.0300 0.0324
20:01-21:00, Sat., 02 Jan. 0.0341 0.0299 0.0323
19:01-20:00, Sat., 02 Jan. 0.0348 0.0301 0.0321
18:01-19:00, Sat., 02 Jan. 0.0343 0.0310 0.0328
17:01-18:00, Sat., 02 Jan. 0.0347 0.0310 0.0325
16:01-17:00, Sat., 02 Jan. 0.0345 0.0302 0.0324
15:01-16:00, Sat., 02 Jan. 0.0351 0.0307 0.0325
14:01-15:00, Sat., 02 Jan. 0.0361 0.0303 0.0326
13:01-14:00, Sat., 02 Jan. 0.0348 0.0302 0.0324
12:01-13:00, Sat., 02 Jan. 0.0339 0.0296 0.0319
11:01-12:00, Sat., 02 Jan. 0.0344 0.0303 0.0321
10:01-11:00, Sat., 02 Jan. 0.0359 0.0301 0.0325
09:01-10:00, Sat., 02 Jan. 0.0342 0.0302 0.0325
08:01-09:00, Sat., 02 Jan. 0.0355 0.0306 0.0329
07:01-08:00, Sat., 02 Jan. 0.0346 0.0308 0.0328
06:01-07:00, Sat., 02 Jan. 0.0349 0.0312 0.0329
05:01-06:00, Sat., 02 Jan. 0.0347 0.0310 0.0329
04:01-05:00, Sat., 02 Jan. 0.0356 0.0307 0.0332
03:01-04:00, Sat., 02 Jan. 0.0346 0.0307 0.0328
02:01-03:00, Sat., 02 Jan. 0.0358 0.0309 0.0330
01:01-02:00, Sat., 02 Jan. 0.0348 0.0307 0.0325
00:01-01:00, Sat., 02 Jan. 0.0347 0.0303 0.0326
23:01-24:00, Fri., 01 Jan. 0.0344 0.0299 0.0326
22:01-23:00, Fri., 01 Jan. 0.0343 0.0300 0.0324
21:01-22:00, Fri., 01 Jan. 0.0339 0.0304 0.0324
20:01-21:00, Fri., 01 Jan. 0.0340 0.0298 0.0323
19:01-20:00, Fri., 01 Jan. 0.0340 0.0303 0.0319
18:01-19:00, Fri., 01 Jan. 0.0345 0.0304 0.0321
17:01-18:00, Fri., 01 Jan. 0.0342 0.0305 0.0321
16:01-17:00, Fri., 01 Jan. 0.0337 0.0305 0.0319
15:01-16:00, Fri., 01 Jan. 0.0352 0.0303 0.0326
14:01-15:00, Fri., 01 Jan. 0.0349 0.0304 0.0324
13:01-14:00, Fri., 01 Jan. 0.0349 0.0294 0.0325
12:01-13:00, Fri., 01 Jan. 0.0363 0.0303 0.0328
11:01-12:00, Fri., 01 Jan. 0.0353 0.0295 0.0327
10:01-11:00, Fri., 01 Jan. 0.0356 0.0311 0.0332
09:01-10:00, Fri., 01 Jan. 0.0355 0.0314 0.0339
08:01-09:00, Fri., 01 Jan. 0.0354 0.0306 0.0333
07:01-08:00, Fri., 01 Jan. 0.0351 0.0306 0.0332
06:01-07:00, Fri., 01 Jan. 0.0347 0.0301 0.0327
05:01-06:00, Fri., 01 Jan. 0.0350 0.0312 0.0331
04:01-05:00, Fri., 01 Jan. 0.0351 0.0313 0.0332
03:01-04:00, Fri., 01 Jan. 0.0343 0.0305 0.0331
02:01-03:00, Fri., 01 Jan. 0.0348 0.0305 0.0330
01:01-02:00, Fri., 01 Jan. 0.0359 0.0310 0.0328
00:01-01:00, Fri., 01 Jan. 0.0357 0.0303 0.0328
23:01-24:00, Thu., 31 Dec. 0.0344 0.0303 0.0327
22:01-23:00, Thu., 31 Dec. 0.0349 0.0306 0.0326
21:01-22:00, Thu., 31 Dec. 0.0346 0.0306 0.0323
20:01-21:00, Thu., 31 Dec. 0.0353 0.0303 0.0325
19:01-20:00, Thu., 31 Dec. 0.0344 0.0299 0.0323
18:01-19:00, Thu., 31 Dec. 0.0339 0.0299 0.0321
17:01-18:00, Thu., 31 Dec. 0.0348 0.0305 0.0326
16:01-17:00, Thu., 31 Dec. 0.0344 0.0307 0.0324
15:01-16:00, Thu., 31 Dec. 0.0343 0.0300 0.0324
14:01-15:00, Thu., 31 Dec. 0.0341 0.0305 0.0322
13:01-14:00, Thu., 31 Dec. 0.0349 0.0306 0.0328
12:01-13:00, Thu., 31 Dec. 0.0357 0.0308 0.0328
11:01-12:00, Thu., 31 Dec. 0.0347 0.0302 0.0327
10:01-11:00, Thu., 31 Dec. 0.0348 0.0305 0.0331
09:01-10:00, Thu., 31 Dec. 0.0354 0.0312 0.0330
08:01-09:00, Thu., 31 Dec. 0.0352 0.0298 0.0327
07:01-08:00, Thu., 31 Dec. 0.0351 0.0310 0.0327
06:01-07:00, Thu., 31 Dec. 0.0346 0.0309 0.0326
05:01-06:00, Thu., 31 Dec. 0.0349 0.0300 0.0325
04:01-05:00, Thu., 31 Dec. 0.0351 0.0307 0.0330
03:01-04:00, Thu., 31 Dec. 0.0356 0.0308 0.0336
02:01-03:00, Thu., 31 Dec. 0.0363 0.0309 0.0335
01:01-02:00, Thu., 31 Dec. 0.0350 0.0312 0.0332
00:01-01:00, Thu., 31 Dec. 0.0349 0.0314 0.0331
23:01-24:00, Wed., 30 Dec. 0.0351 0.0313 0.0333
22:01-23:00, Wed., 30 Dec. 0.0356 0.0310 0.0332
21:01-22:00, Wed., 30 Dec. 0.0352 0.0314 0.0337
20:01-21:00, Wed., 30 Dec. 0.0354 0.0308 0.0335
19:01-20:00, Wed., 30 Dec. 0.0354 0.0318 0.0336
18:01-19:00, Wed., 30 Dec. 0.0356 0.0304 0.0331
17:01-18:00, Wed., 30 Dec. 0.0351 0.0308 0.0330
16:01-17:00, Wed., 30 Dec. 0.0348 0.0306 0.0329
15:01-16:00, Wed., 30 Dec. 0.0357 0.0309 0.0329
14:01-15:00, Wed., 30 Dec. 0.0353 0.0301 0.0334
13:01-14:00, Wed., 30 Dec. 0.0351 0.0311 0.0335
12:01-13:00, Wed., 30 Dec. 0.0357 0.0315 0.0339
11:01-12:00, Wed., 30 Dec. 0.0366 0.0323 0.0343
10:01-11:00, Wed., 30 Dec. 0.0371 0.0328 0.0353
09:01-10:00, Wed., 30 Dec. 0.0421 0.0347 0.0376
08:01-09:00, Wed., 30 Dec. 0.0403 0.0341 0.0368
07:01-08:00, Wed., 30 Dec. 0.0386 0.0338 0.0358
06:01-07:00, Wed., 30 Dec. 0.0362 0.0322 0.0342
05:01-06:00, Wed., 30 Dec. 0.0360 0.0309 0.0337
04:01-05:00, Wed., 30 Dec. 0.0363 0.0312 0.0335
03:01-04:00, Wed., 30 Dec. 0.0356 0.0315 0.0335
02:01-03:00, Wed., 30 Dec. 0.0368 0.0329 0.0341
01:01-02:00, Wed., 30 Dec. 0.0361 0.0317 0.0340
00:01-01:00, Wed., 30 Dec. 0.0364 0.0317 0.0340
23:01-24:00, Tue., 29 Dec. 0.0364 0.0318 0.0340
22:01-23:00, Tue., 29 Dec. 0.0360 0.0313 0.0337
21:01-22:00, Tue., 29 Dec. 0.0363 0.0316 0.0333
20:01-21:00, Tue., 29 Dec. 0.0350 0.0303 0.0329
19:01-20:00, Tue., 29 Dec. 0.0348 0.0311 0.0331
18:01-19:00, Tue., 29 Dec. 0.0351 0.0305 0.0327
17:01-18:00, Tue., 29 Dec. 0.0349 0.0312 0.0328
16:01-17:00, Tue., 29 Dec. 0.0347 0.0308 0.0328
15:01-16:00, Tue., 29 Dec. 0.0351 0.0312 0.0330
14:01-15:00, Tue., 29 Dec. 0.0355 0.0310 0.0331
13:01-14:00, Tue., 29 Dec. 0.0358 0.0317 0.0334
12:01-13:00, Tue., 29 Dec. 0.0358 0.0312 0.0336
11:01-12:00, Tue., 29 Dec. 0.0366 0.0301 0.0337
10:01-11:00, Tue., 29 Dec. 0.0361 0.0304 0.0329
09:01-10:00, Tue., 29 Dec. 0.0357 0.0304 0.0331
08:01-09:00, Tue., 29 Dec. 0.0358 0.0310 0.0328
07:01-08:00, Tue., 29 Dec. 0.0352 0.0302 0.0329
06:01-07:00, Tue., 29 Dec. 0.0351 0.0315 0.0331
05:01-06:00, Tue., 29 Dec. 0.0351 0.0312 0.0331
04:01-05:00, Tue., 29 Dec. 0.0359 0.0309 0.0331
03:01-04:00, Tue., 29 Dec. 0.0359 0.0320 0.0337
02:01-03:00, Tue., 29 Dec. 0.0357 0.0312 0.0335
01:01-02:00, Tue., 29 Dec. 0.0361 0.0316 0.0335
00:01-01:00, Tue., 29 Dec. 0.0355 0.0318 0.0335
23:01-24:00, Mon., 28 Dec. 0.0347 0.0304 0.0330
22:01-23:00, Mon., 28 Dec. 0.0344 0.0305 0.0326
21:01-22:00, Mon., 28 Dec. 0.0349 0.0306 0.0327
20:01-21:00, Mon., 28 Dec. 0.0349 0.0313 0.0330
19:01-20:00, Mon., 28 Dec. 0.0351 0.0308 0.0331
18:01-19:00, Mon., 28 Dec. 0.0347 0.0306 0.0327
17:01-18:00, Mon., 28 Dec. 0.0344 0.0304 0.0324
16:01-17:00, Mon., 28 Dec. 0.0351 0.0308 0.0325
15:01-16:00, Mon., 28 Dec. 0.0349 0.0297 0.0324
14:01-15:00, Mon., 28 Dec. 0.0344 0.0299 0.0324
13:01-14:00, Mon., 28 Dec. 0.0350 0.0300 0.0326
12:01-13:00, Mon., 28 Dec. 0.0352 0.0308 0.0331
11:01-12:00, Mon., 28 Dec. 0.0347 0.0302 0.0327
10:01-11:00, Mon., 28 Dec. 0.0343 0.0310 0.0327
09:01-10:00, Mon., 28 Dec. 0.0345 0.0308 0.0327
08:01-09:00, Mon., 28 Dec. 0.0355 0.0319 0.0337
07:01-08:00, Mon., 28 Dec. 0.0357 0.0314 0.0341
06:01-07:00, Mon., 28 Dec. 0.0361 0.0317 0.0341
05:01-06:00, Mon., 28 Dec. 0.0373 0.0318 0.0341
04:01-05:00, Mon., 28 Dec. 0.0357 0.0323 0.0340
03:01-04:00, Mon., 28 Dec. 0.0361 0.0316 0.0336
02:01-03:00, Mon., 28 Dec. 0.0352 0.0320 0.0338
01:01-02:00, Mon., 28 Dec. 0.0358 0.0315 0.0334
00:01-01:00, Mon., 28 Dec. 0.0359 0.0314 0.0334