Measurement results by the hour (Shinjuku) 30 Mar., 2020 - 5 Apr., 2020

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., 05 Apr. 0.0389 0.0340 0.0364
22:01-23:00, Sun., 05 Apr. 0.0408 0.0343 0.0366
21:01-22:00, Sun., 05 Apr. 0.0387 0.0336 0.0362
20:01-21:00, Sun., 05 Apr. 0.0393 0.0338 0.0362
19:01-20:00, Sun., 05 Apr. 0.0385 0.0344 0.0362
18:01-19:00, Sun., 05 Apr. 0.0398 0.0347 0.0367
17:01-18:00, Sun., 05 Apr. 0.0409 0.0353 0.0376
16:01-17:00, Sun., 05 Apr. 0.0429 0.0361 0.0392
15:01-16:00, Sun., 05 Apr. 0.0432 0.0342 0.0376
14:01-15:00, Sun., 05 Apr. 0.0411 0.0347 0.0368
13:01-14:00, Sun., 05 Apr. 0.0411 0.0344 0.0371
12:01-13:00, Sun., 05 Apr. 0.0405 0.0350 0.0368
11:01-12:00, Sun., 05 Apr. 0.0402 0.0348 0.0366
10:01-11:00, Sun., 05 Apr. 0.0393 0.0348 0.0366
09:01-10:00, Sun., 05 Apr. 0.0404 0.0355 0.0371
08:01-09:00, Sun., 05 Apr. 0.0405 0.0352 0.0372
07:01-08:00, Sun., 05 Apr. 0.0398 0.0349 0.0368
06:01-07:00, Sun., 05 Apr. 0.0409 0.0346 0.0366
05:01-06:00, Sun., 05 Apr. 0.0411 0.0349 0.0371
04:01-05:00, Sun., 05 Apr. 0.0395 0.0351 0.0368
03:01-04:00, Sun., 05 Apr. 0.0404 0.0346 0.0365
02:01-03:00, Sun., 05 Apr. 0.0401 0.0351 0.0368
01:01-02:00, Sun., 05 Apr. 0.0397 0.0342 0.0365
00:01-01:00, Sun., 05 Apr. 0.0380 0.0340 0.0362
23:01-24:00, Sat., 04 Apr. 0.0385 0.0347 0.0362
22:01-23:00, Sat., 04 Apr. 0.0386 0.0348 0.0363
21:01-22:00, Sat., 04 Apr. 0.0403 0.0340 0.0364
20:01-21:00, Sat., 04 Apr. 0.0404 0.0340 0.0364
19:01-20:00, Sat., 04 Apr. 0.0391 0.0345 0.0367
18:01-19:00, Sat., 04 Apr. 0.0387 0.0340 0.0363
17:01-18:00, Sat., 04 Apr. 0.0397 0.0339 0.0366
16:01-17:00, Sat., 04 Apr. 0.0404 0.0344 0.0366
15:01-16:00, Sat., 04 Apr. 0.0402 0.0342 0.0364
14:01-15:00, Sat., 04 Apr. 0.0391 0.0339 0.0363
13:01-14:00, Sat., 04 Apr. 0.0403 0.0341 0.0364
12:01-13:00, Sat., 04 Apr. 0.0397 0.0341 0.0365
11:01-12:00, Sat., 04 Apr. 0.0402 0.0342 0.0369
10:01-11:00, Sat., 04 Apr. 0.0386 0.0342 0.0365
09:01-10:00, Sat., 04 Apr. 0.0408 0.0341 0.0370
08:01-09:00, Sat., 04 Apr. 0.0387 0.0348 0.0368
07:01-08:00, Sat., 04 Apr. 0.0392 0.0349 0.0370
06:01-07:00, Sat., 04 Apr. 0.0402 0.0347 0.0366
05:01-06:00, Sat., 04 Apr. 0.0391 0.0350 0.0367
04:01-05:00, Sat., 04 Apr. 0.0394 0.0339 0.0364
03:01-04:00, Sat., 04 Apr. 0.0387 0.0341 0.0364
02:01-03:00, Sat., 04 Apr. 0.0411 0.0342 0.0367
01:01-02:00, Sat., 04 Apr. 0.0404 0.0342 0.0365
00:01-01:00, Sat., 04 Apr. 0.0389 0.0338 0.0363
23:01-24:00, Fri., 03 Apr. 0.0395 0.0341 0.0362
22:01-23:00, Fri., 03 Apr. 0.0381 0.0344 0.0360
21:01-22:00, Fri., 03 Apr. 0.0390 0.0344 0.0362
20:01-21:00, Fri., 03 Apr. 0.0389 0.0344 0.0362
19:01-20:00, Fri., 03 Apr. 0.0387 0.0341 0.0361
18:01-19:00, Fri., 03 Apr. 0.0381 0.0336 0.0361
17:01-18:00, Fri., 03 Apr. 0.0399 0.0336 0.0362
16:01-17:00, Fri., 03 Apr. 0.0383 0.0344 0.0362
15:01-16:00, Fri., 03 Apr. 0.0391 0.0340 0.0362
14:01-15:00, Fri., 03 Apr. 0.0386 0.0344 0.0365
13:01-14:00, Fri., 03 Apr. 0.0415 0.0346 0.0364
12:01-13:00, Fri., 03 Apr. 0.0395 0.0331 0.0363
11:01-12:00, Fri., 03 Apr. 0.0385 0.0345 0.0364
10:01-11:00, Fri., 03 Apr. 0.0386 0.0344 0.0362
09:01-10:00, Fri., 03 Apr. 0.0385 0.0348 0.0364
08:01-09:00, Fri., 03 Apr. 0.0394 0.0344 0.0365
07:01-08:00, Fri., 03 Apr. 0.0391 0.0344 0.0363
06:01-07:00, Fri., 03 Apr. 0.0406 0.0343 0.0360
05:01-06:00, Fri., 03 Apr. 0.0381 0.0339 0.0362
04:01-05:00, Fri., 03 Apr. 0.0397 0.0347 0.0363
03:01-04:00, Fri., 03 Apr. 0.0392 0.0343 0.0362
02:01-03:00, Fri., 03 Apr. 0.0378 0.0345 0.0360
01:01-02:00, Fri., 03 Apr. 0.0397 0.0340 0.0361
00:01-01:00, Fri., 03 Apr. 0.0392 0.0334 0.0362
23:01-24:00, Thu., 02 Apr. 0.0384 0.0345 0.0362
22:01-23:00, Thu., 02 Apr. 0.0395 0.0340 0.0360
21:01-22:00, Thu., 02 Apr. 0.0394 0.0341 0.0362
20:01-21:00, Thu., 02 Apr. 0.0409 0.0344 0.0362
19:01-20:00, Thu., 02 Apr. 0.0380 0.0334 0.0360
18:01-19:00, Thu., 02 Apr. 0.0400 0.0339 0.0362
17:01-18:00, Thu., 02 Apr. 0.0381 0.0342 0.0360
16:01-17:00, Thu., 02 Apr. 0.0404 0.0340 0.0364
15:01-16:00, Thu., 02 Apr. 0.0392 0.0336 0.0365
14:01-15:00, Thu., 02 Apr. 0.0386 0.0342 0.0366
13:01-14:00, Thu., 02 Apr. 0.0410 0.0345 0.0364
12:01-13:00, Thu., 02 Apr. 0.0384 0.0342 0.0363
11:01-12:00, Thu., 02 Apr. 0.0396 0.0344 0.0364
10:01-11:00, Thu., 02 Apr. 0.0392 0.0343 0.0360
09:01-10:00, Thu., 02 Apr. 0.0383 0.0338 0.0360
08:01-09:00, Thu., 02 Apr. 0.0390 0.0335 0.0360
07:01-08:00, Thu., 02 Apr. 0.0378 0.0342 0.0358
06:01-07:00, Thu., 02 Apr. 0.0402 0.0342 0.0359
05:01-06:00, Thu., 02 Apr. 0.0399 0.0345 0.0365
04:01-05:00, Thu., 02 Apr. 0.0396 0.0343 0.0361
03:01-04:00, Thu., 02 Apr. 0.0402 0.0346 0.0363
02:01-03:00, Thu., 02 Apr. 0.0398 0.0347 0.0366
01:01-02:00, Thu., 02 Apr. 0.0400 0.0342 0.0365
00:01-01:00, Thu., 02 Apr. 0.0416 0.0348 0.0370
23:01-24:00, Wed., 01 Apr. 0.0444 0.0347 0.0383
22:01-23:00, Wed., 01 Apr. 0.0480 0.0375 0.0429
21:01-22:00, Wed., 01 Apr. 0.0562 0.0431 0.0497
20:01-21:00, Wed., 01 Apr. 0.0617 0.0522 0.0572
19:01-20:00, Wed., 01 Apr. 0.0611 0.0523 0.0569
18:01-19:00, Wed., 01 Apr. 0.0597 0.0515 0.0553
17:01-18:00, Wed., 01 Apr. 0.0559 0.0473 0.0520
16:01-17:00, Wed., 01 Apr. 0.0531 0.0450 0.0494
15:01-16:00, Wed., 01 Apr. 0.0536 0.0439 0.0496
14:01-15:00, Wed., 01 Apr. 0.0531 0.0420 0.0476
13:01-14:00, Wed., 01 Apr. 0.0478 0.0403 0.0439
12:01-13:00, Wed., 01 Apr. 0.0459 0.0384 0.0419
11:01-12:00, Wed., 01 Apr. 0.0444 0.0366 0.0400
10:01-11:00, Wed., 01 Apr. 0.0436 0.0369 0.0406
09:01-10:00, Wed., 01 Apr. 0.0446 0.0380 0.0411
08:01-09:00, Wed., 01 Apr. 0.0455 0.0384 0.0415
07:01-08:00, Wed., 01 Apr. 0.0445 0.0368 0.0404
06:01-07:00, Wed., 01 Apr. 0.0423 0.0346 0.0373
05:01-06:00, Wed., 01 Apr. 0.0397 0.0346 0.0364
04:01-05:00, Wed., 01 Apr. 0.0398 0.0335 0.0364
03:01-04:00, Wed., 01 Apr. 0.0402 0.0341 0.0364
02:01-03:00, Wed., 01 Apr. 0.0382 0.0347 0.0363
01:01-02:00, Wed., 01 Apr. 0.0380 0.0349 0.0362
00:01-01:00, Wed., 01 Apr. 0.0385 0.0344 0.0363
23:01-24:00, Tue., 31 Mar. 0.0393 0.0341 0.0365
22:01-23:00, Tue., 31 Mar. 0.0395 0.0341 0.0364
21:01-22:00, Tue., 31 Mar. 0.0397 0.0347 0.0366
20:01-21:00, Tue., 31 Mar. 0.0400 0.0350 0.0368
19:01-20:00, Tue., 31 Mar. 0.0405 0.0354 0.0370
18:01-19:00, Tue., 31 Mar. 0.0400 0.0341 0.0365
17:01-18:00, Tue., 31 Mar. 0.0403 0.0347 0.0366
16:01-17:00, Tue., 31 Mar. 0.0399 0.0338 0.0366
15:01-16:00, Tue., 31 Mar. 0.0393 0.0337 0.0366
14:01-15:00, Tue., 31 Mar. 0.0398 0.0349 0.0368
13:01-14:00, Tue., 31 Mar. 0.0403 0.0353 0.0373
12:01-13:00, Tue., 31 Mar. 0.0420 0.0361 0.0377
11:01-12:00, Tue., 31 Mar. 0.0403 0.0350 0.0368
10:01-11:00, Tue., 31 Mar. 0.0404 0.0350 0.0367
09:01-10:00, Tue., 31 Mar. 0.0397 0.0350 0.0370
08:01-09:00, Tue., 31 Mar. 0.0410 0.0355 0.0377
07:01-08:00, Tue., 31 Mar. 0.0434 0.0356 0.0374
06:01-07:00, Tue., 31 Mar. 0.0402 0.0343 0.0366
05:01-06:00, Tue., 31 Mar. 0.0399 0.0344 0.0366
04:01-05:00, Tue., 31 Mar. 0.0401 0.0349 0.0367
03:01-04:00, Tue., 31 Mar. 0.0388 0.0348 0.0365
02:01-03:00, Tue., 31 Mar. 0.0399 0.0333 0.0362
01:01-02:00, Tue., 31 Mar. 0.0372 0.0334 0.0356
00:01-01:00, Tue., 31 Mar. 0.0374 0.0330 0.0355
23:01-24:00, Mon., 30 Mar. 0.0394 0.0338 0.0358
22:01-23:00, Mon., 30 Mar. 0.0396 0.0334 0.0360
21:01-22:00, Mon., 30 Mar. 0.0392 0.0341 0.0360
20:01-21:00, Mon., 30 Mar. 0.0379 0.0340 0.0359
19:01-20:00, Mon., 30 Mar. 0.0373 0.0341 0.0359
18:01-19:00, Mon., 30 Mar. 0.0388 0.0343 0.0364
17:01-18:00, Mon., 30 Mar. 0.0378 0.0340 0.0361
16:01-17:00, Mon., 30 Mar. 0.0413 0.0340 0.0363
15:01-16:00, Mon., 30 Mar. 0.0395 0.0341 0.0363
14:01-15:00, Mon., 30 Mar. 0.0374 0.0345 0.0359
13:01-14:00, Mon., 30 Mar. 0.0394 0.0327 0.0360
12:01-13:00, Mon., 30 Mar. 0.0392 0.0341 0.0360
11:01-12:00, Mon., 30 Mar. 0.0391 0.0342 0.0363
10:01-11:00, Mon., 30 Mar. 0.0399 0.0344 0.0363
09:01-10:00, Mon., 30 Mar. 0.0398 0.0343 0.0359
08:01-09:00, Mon., 30 Mar. 0.0387 0.0340 0.0362
07:01-08:00, Mon., 30 Mar. 0.0385 0.0341 0.0360
06:01-07:00, Mon., 30 Mar. 0.0387 0.0331 0.0362
05:01-06:00, Mon., 30 Mar. 0.0375 0.0330 0.0360
04:01-05:00, Mon., 30 Mar. 0.0385 0.0335 0.0358
03:01-04:00, Mon., 30 Mar. 0.0376 0.0338 0.0358
02:01-03:00, Mon., 30 Mar. 0.0388 0.0342 0.0360
01:01-02:00, Mon., 30 Mar. 0.0374 0.0340 0.0358
00:01-01:00, Mon., 30 Mar. 0.0387 0.0341 0.0360