Measurement results by the hour (Shinjuku) 25 Apr., 2022 - 1 May., 2022

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., 01 May. 0.0383 0.0346 0.0361
22:01-23:00, Sun., 01 May. 0.0387 0.0344 0.0361
21:01-22:00, Sun., 01 May. 0.0396 0.0339 0.0370
20:01-21:00, Sun., 01 May. 0.0434 0.0364 0.0401
19:01-20:00, Sun., 01 May. 0.0474 0.0388 0.0419
18:01-19:00, Sun., 01 May. 0.0452 0.0392 0.0420
17:01-18:00, Sun., 01 May. 0.0461 0.0381 0.0419
16:01-17:00, Sun., 01 May. 0.0446 0.0370 0.0417
15:01-16:00, Sun., 01 May. 0.0487 0.0395 0.0434
14:01-15:00, Sun., 01 May. 0.0451 0.0375 0.0418
13:01-14:00, Sun., 01 May. 0.0430 0.0348 0.0385
12:01-13:00, Sun., 01 May. 0.0416 0.0342 0.0367
11:01-12:00, Sun., 01 May. 0.0380 0.0343 0.0362
10:01-11:00, Sun., 01 May. 0.0393 0.0336 0.0364
09:01-10:00, Sun., 01 May. 0.0412 0.0338 0.0361
08:01-09:00, Sun., 01 May. 0.0392 0.0349 0.0364
07:01-08:00, Sun., 01 May. 0.0385 0.0338 0.0362
06:01-07:00, Sun., 01 May. 0.0377 0.0333 0.0361
05:01-06:00, Sun., 01 May. 0.0396 0.0338 0.0361
04:01-05:00, Sun., 01 May. 0.0384 0.0343 0.0360
03:01-04:00, Sun., 01 May. 0.0384 0.0338 0.0361
02:01-03:00, Sun., 01 May. 0.0381 0.0338 0.0360
01:01-02:00, Sun., 01 May. 0.0382 0.0340 0.0358
00:01-01:00, Sun., 01 May. 0.0378 0.0339 0.0358
23:01-24:00, Sat., 30 Apr. 0.0388 0.0340 0.0359
22:01-23:00, Sat., 30 Apr. 0.0374 0.0340 0.0359
21:01-22:00, Sat., 30 Apr. 0.0383 0.0337 0.0359
20:01-21:00, Sat., 30 Apr. 0.0383 0.0336 0.0359
19:01-20:00, Sat., 30 Apr. 0.0384 0.0337 0.0357
18:01-19:00, Sat., 30 Apr. 0.0391 0.0341 0.0359
17:01-18:00, Sat., 30 Apr. 0.0390 0.0345 0.0361
16:01-17:00, Sat., 30 Apr. 0.0382 0.0331 0.0357
15:01-16:00, Sat., 30 Apr. 0.0378 0.0338 0.0361
14:01-15:00, Sat., 30 Apr. 0.0376 0.0338 0.0360
13:01-14:00, Sat., 30 Apr. 0.0392 0.0343 0.0363
12:01-13:00, Sat., 30 Apr. 0.0391 0.0348 0.0363
11:01-12:00, Sat., 30 Apr. 0.0403 0.0341 0.0362
10:01-11:00, Sat., 30 Apr. 0.0393 0.0341 0.0359
09:01-10:00, Sat., 30 Apr. 0.0372 0.0338 0.0359
08:01-09:00, Sat., 30 Apr. 0.0396 0.0342 0.0362
07:01-08:00, Sat., 30 Apr. 0.0384 0.0339 0.0360
06:01-07:00, Sat., 30 Apr. 0.0388 0.0340 0.0359
05:01-06:00, Sat., 30 Apr. 0.0390 0.0338 0.0358
04:01-05:00, Sat., 30 Apr. 0.0388 0.0338 0.0355
03:01-04:00, Sat., 30 Apr. 0.0390 0.0329 0.0357
02:01-03:00, Sat., 30 Apr. 0.0391 0.0337 0.0361
01:01-02:00, Sat., 30 Apr. 0.0389 0.0337 0.0360
00:01-01:00, Sat., 30 Apr. 0.0384 0.0336 0.0358
23:01-24:00, Fri., 29 Apr. 0.0418 0.0335 0.0363
22:01-23:00, Fri., 29 Apr. 0.0420 0.0349 0.0377
21:01-22:00, Fri., 29 Apr. 0.0452 0.0366 0.0412
20:01-21:00, Fri., 29 Apr. 0.0478 0.0389 0.0440
19:01-20:00, Fri., 29 Apr. 0.0519 0.0428 0.0474
18:01-19:00, Fri., 29 Apr. 0.0538 0.0467 0.0497
17:01-18:00, Fri., 29 Apr. 0.0524 0.0435 0.0484
16:01-17:00, Fri., 29 Apr. 0.0516 0.0439 0.0478
15:01-16:00, Fri., 29 Apr. 0.0530 0.0448 0.0490
14:01-15:00, Fri., 29 Apr. 0.0536 0.0431 0.0472
13:01-14:00, Fri., 29 Apr. 0.0454 0.0370 0.0424
12:01-13:00, Fri., 29 Apr. 0.0458 0.0392 0.0426
11:01-12:00, Fri., 29 Apr. 0.0432 0.0372 0.0402
10:01-11:00, Fri., 29 Apr. 0.0425 0.0359 0.0390
09:01-10:00, Fri., 29 Apr. 0.0402 0.0339 0.0363
08:01-09:00, Fri., 29 Apr. 0.0380 0.0343 0.0361
07:01-08:00, Fri., 29 Apr. 0.0399 0.0334 0.0365
06:01-07:00, Fri., 29 Apr. 0.0386 0.0337 0.0362
05:01-06:00, Fri., 29 Apr. 0.0406 0.0336 0.0362
04:01-05:00, Fri., 29 Apr. 0.0376 0.0344 0.0360
03:01-04:00, Fri., 29 Apr. 0.0391 0.0338 0.0361
02:01-03:00, Fri., 29 Apr. 0.0385 0.0339 0.0362
01:01-02:00, Fri., 29 Apr. 0.0390 0.0345 0.0363
00:01-01:00, Fri., 29 Apr. 0.0386 0.0335 0.0360
23:01-24:00, Thu., 28 Apr. 0.0388 0.0338 0.0361
22:01-23:00, Thu., 28 Apr. 0.0392 0.0340 0.0362
21:01-22:00, Thu., 28 Apr. 0.0383 0.0342 0.0363
20:01-21:00, Thu., 28 Apr. 0.0389 0.0342 0.0361
19:01-20:00, Thu., 28 Apr. 0.0390 0.0340 0.0362
18:01-19:00, Thu., 28 Apr. 0.0406 0.0346 0.0361
17:01-18:00, Thu., 28 Apr. 0.0381 0.0340 0.0363
16:01-17:00, Thu., 28 Apr. 0.0394 0.0347 0.0362
15:01-16:00, Thu., 28 Apr. 0.0407 0.0342 0.0366
14:01-15:00, Thu., 28 Apr. 0.0387 0.0334 0.0360
13:01-14:00, Thu., 28 Apr. 0.0394 0.0345 0.0366
12:01-13:00, Thu., 28 Apr. 0.0395 0.0337 0.0361
11:01-12:00, Thu., 28 Apr. 0.0389 0.0340 0.0359
10:01-11:00, Thu., 28 Apr. 0.0388 0.0336 0.0363
09:01-10:00, Thu., 28 Apr. 0.0401 0.0347 0.0366
08:01-09:00, Thu., 28 Apr. 0.0396 0.0340 0.0362
07:01-08:00, Thu., 28 Apr. 0.0403 0.0344 0.0361
06:01-07:00, Thu., 28 Apr. 0.0409 0.0343 0.0363
05:01-06:00, Thu., 28 Apr. 0.0401 0.0346 0.0364
04:01-05:00, Thu., 28 Apr. 0.0398 0.0343 0.0367
03:01-04:00, Thu., 28 Apr. 0.0398 0.0345 0.0364
02:01-03:00, Thu., 28 Apr. 0.0388 0.0349 0.0363
01:01-02:00, Thu., 28 Apr. 0.0386 0.0344 0.0363
00:01-01:00, Thu., 28 Apr. 0.0401 0.0351 0.0368
23:01-24:00, Wed., 27 Apr. 0.0394 0.0347 0.0367
22:01-23:00, Wed., 27 Apr. 0.0396 0.0341 0.0363
21:01-22:00, Wed., 27 Apr. 0.0394 0.0350 0.0364
20:01-21:00, Wed., 27 Apr. 0.0396 0.0333 0.0367
19:01-20:00, Wed., 27 Apr. 0.0400 0.0350 0.0367
18:01-19:00, Wed., 27 Apr. 0.0394 0.0348 0.0366
17:01-18:00, Wed., 27 Apr. 0.0400 0.0349 0.0365
16:01-17:00, Wed., 27 Apr. 0.0392 0.0339 0.0363
15:01-16:00, Wed., 27 Apr. 0.0411 0.0346 0.0366
14:01-15:00, Wed., 27 Apr. 0.0390 0.0342 0.0362
13:01-14:00, Wed., 27 Apr. 0.0383 0.0341 0.0363
12:01-13:00, Wed., 27 Apr. 0.0384 0.0340 0.0363
11:01-12:00, Wed., 27 Apr. 0.0380 0.0342 0.0362
10:01-11:00, Wed., 27 Apr. 0.0392 0.0335 0.0361
09:01-10:00, Wed., 27 Apr. 0.0405 0.0351 0.0372
08:01-09:00, Wed., 27 Apr. 0.0425 0.0348 0.0390
07:01-08:00, Wed., 27 Apr. 0.0421 0.0362 0.0393
06:01-07:00, Wed., 27 Apr. 0.0398 0.0335 0.0363
05:01-06:00, Wed., 27 Apr. 0.0388 0.0350 0.0363
04:01-05:00, Wed., 27 Apr. 0.0385 0.0341 0.0363
03:01-04:00, Wed., 27 Apr. 0.0412 0.0347 0.0366
02:01-03:00, Wed., 27 Apr. 0.0410 0.0336 0.0367
01:01-02:00, Wed., 27 Apr. 0.0386 0.0343 0.0362
00:01-01:00, Wed., 27 Apr. 0.0393 0.0333 0.0358
23:01-24:00, Tue., 26 Apr. 0.0395 0.0339 0.0359
22:01-23:00, Tue., 26 Apr. 0.0389 0.0343 0.0361
21:01-22:00, Tue., 26 Apr. 0.0385 0.0338 0.0360
20:01-21:00, Tue., 26 Apr. 0.0385 0.0339 0.0358
19:01-20:00, Tue., 26 Apr. 0.0397 0.0337 0.0358
18:01-19:00, Tue., 26 Apr. 0.0382 0.0339 0.0361
17:01-18:00, Tue., 26 Apr. 0.0389 0.0347 0.0365
16:01-17:00, Tue., 26 Apr. 0.0401 0.0345 0.0368
15:01-16:00, Tue., 26 Apr. 0.0398 0.0334 0.0363
14:01-15:00, Tue., 26 Apr. 0.0405 0.0338 0.0363
13:01-14:00, Tue., 26 Apr. 0.0412 0.0335 0.0365
12:01-13:00, Tue., 26 Apr. 0.0430 0.0349 0.0371
11:01-12:00, Tue., 26 Apr. 0.0408 0.0354 0.0370
10:01-11:00, Tue., 26 Apr. 0.0387 0.0349 0.0366
09:01-10:00, Tue., 26 Apr. 0.0397 0.0346 0.0367
08:01-09:00, Tue., 26 Apr. 0.0395 0.0336 0.0364
07:01-08:00, Tue., 26 Apr. 0.0383 0.0341 0.0364
06:01-07:00, Tue., 26 Apr. 0.0383 0.0341 0.0362
05:01-06:00, Tue., 26 Apr. 0.0402 0.0336 0.0364
04:01-05:00, Tue., 26 Apr. 0.0389 0.0346 0.0363
03:01-04:00, Tue., 26 Apr. 0.0405 0.0341 0.0363
02:01-03:00, Tue., 26 Apr. 0.0389 0.0344 0.0361
01:01-02:00, Tue., 26 Apr. 0.0386 0.0344 0.0362
00:01-01:00, Tue., 26 Apr. 0.0403 0.0335 0.0362
23:01-24:00, Mon., 25 Apr. 0.0387 0.0343 0.0363
22:01-23:00, Mon., 25 Apr. 0.0394 0.0344 0.0367
21:01-22:00, Mon., 25 Apr. 0.0392 0.0341 0.0361
20:01-21:00, Mon., 25 Apr. 0.0383 0.0344 0.0361
19:01-20:00, Mon., 25 Apr. 0.0404 0.0336 0.0365
18:01-19:00, Mon., 25 Apr. 0.0399 0.0341 0.0366
17:01-18:00, Mon., 25 Apr. 0.0398 0.0345 0.0368
16:01-17:00, Mon., 25 Apr. 0.0401 0.0349 0.0366
15:01-16:00, Mon., 25 Apr. 0.0402 0.0346 0.0367
14:01-15:00, Mon., 25 Apr. 0.0395 0.0349 0.0365
13:01-14:00, Mon., 25 Apr. 0.0397 0.0345 0.0365
12:01-13:00, Mon., 25 Apr. 0.0391 0.0346 0.0363
11:01-12:00, Mon., 25 Apr. 0.0396 0.0344 0.0363
10:01-11:00, Mon., 25 Apr. 0.0394 0.0343 0.0362
09:01-10:00, Mon., 25 Apr. 0.0404 0.0345 0.0365
08:01-09:00, Mon., 25 Apr. 0.0395 0.0345 0.0365
07:01-08:00, Mon., 25 Apr. 0.0389 0.0339 0.0365
06:01-07:00, Mon., 25 Apr. 0.0392 0.0344 0.0366
05:01-06:00, Mon., 25 Apr. 0.0388 0.0341 0.0364
04:01-05:00, Mon., 25 Apr. 0.0402 0.0348 0.0365
03:01-04:00, Mon., 25 Apr. 0.0390 0.0345 0.0364
02:01-03:00, Mon., 25 Apr. 0.0385 0.0347 0.0364
01:01-02:00, Mon., 25 Apr. 0.0403 0.0334 0.0362
00:01-01:00, Mon., 25 Apr. 0.0425 0.0346 0.0365