Radiation doses in the air / Measurement results by the hour (Edogawa)

We continuously measure radiation doses in the air (air absorbed doses per hour) at monitoring posts. Measurement results can be obtained by the minute, and we gather measurement data and then display them by the hour or by the day.

The maximum value indicates the largest value measured in each time slot (during the hour or during the day), the minimum value the smallest value measured in each time slot, and the average value is the average value for each time slot.

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
16:01-17:00, Mon., 18 Aug. 0.0623 0.0459 0.0545
15:01-16:00, Mon., 18 Aug. 0.0637 0.0393 0.0469
14:01-15:00, Mon., 18 Aug. 0.0434 0.0384 0.0404
13:01-14:00, Mon., 18 Aug. 0.0433 0.0383 0.0408
12:01-13:00, Mon., 18 Aug. 0.0426 0.0382 0.0406
11:01-12:00, Mon., 18 Aug. 0.0432 0.0385 0.0407
10:01-11:00, Mon., 18 Aug. 0.0432 0.0381 0.0406
09:01-10:00, Mon., 18 Aug. 0.0432 0.0383 0.0405
08:01-09:00, Mon., 18 Aug. 0.0426 0.0381 0.0404
07:01-08:00, Mon., 18 Aug. 0.0425 0.0381 0.0403
06:01-07:00, Mon., 18 Aug. 0.0423 0.0381 0.0402
05:01-06:00, Mon., 18 Aug. 0.0419 0.0369 0.0400
04:01-05:00, Mon., 18 Aug. 0.0429 0.0381 0.0400
03:01-04:00, Mon., 18 Aug. 0.0421 0.0373 0.0398
02:01-03:00, Mon., 18 Aug. 0.0421 0.0375 0.0400
01:01-02:00, Mon., 18 Aug. 0.0423 0.0376 0.0402
00:01-01:00, Mon., 18 Aug. 0.0427 0.0381 0.0401
23:01-24:00, Sun., 17 Aug. 0.0419 0.0377 0.0399
22:01-23:00, Sun., 17 Aug. 0.0417 0.0380 0.0399
21:01-22:00, Sun., 17 Aug. 0.0435 0.0379 0.0399
20:01-21:00, Sun., 17 Aug. 0.0414 0.0374 0.0398
19:01-20:00, Sun., 17 Aug. 0.0419 0.0377 0.0397
18:01-19:00, Sun., 17 Aug. 0.0428 0.0371 0.0399
17:01-18:00, Sun., 17 Aug. 0.0416 0.0374 0.0395
16:01-17:00, Sun., 17 Aug. 0.0419 0.0371 0.0396
15:01-16:00, Sun., 17 Aug. 0.0419 0.0363 0.0393
14:01-15:00, Sun., 17 Aug. 0.0421 0.0361 0.0396
13:01-14:00, Sun., 17 Aug. 0.0409 0.0367 0.0389
12:01-13:00, Sun., 17 Aug. 0.0418 0.0370 0.0390
11:01-12:00, Sun., 17 Aug. 0.0414 0.0367 0.0387
10:01-11:00, Sun., 17 Aug. 0.0424 0.0370 0.0391
09:01-10:00, Sun., 17 Aug. 0.0420 0.0363 0.0393
08:01-09:00, Sun., 17 Aug. 0.0406 0.0374 0.0392
07:01-08:00, Sun., 17 Aug. 0.0422 0.0377 0.0393
06:01-07:00, Sun., 17 Aug. 0.0412 0.0375 0.0393
05:01-06:00, Sun., 17 Aug. 0.0419 0.0377 0.0396
04:01-05:00, Sun., 17 Aug. 0.0417 0.0374 0.0393
03:01-04:00, Sun., 17 Aug. 0.0418 0.0374 0.0393
02:01-03:00, Sun., 17 Aug. 0.0416 0.0374 0.0393
01:01-02:00, Sun., 17 Aug. 0.0415 0.0369 0.0392
00:01-01:00, Sun., 17 Aug. 0.0413 0.0363 0.0392
23:01-24:00, Sat., 16 Aug. 0.0425 0.0370 0.0391
22:01-23:00, Sat., 16 Aug. 0.0415 0.0369 0.0390
21:01-22:00, Sat., 16 Aug. 0.0417 0.0372 0.0393
20:01-21:00, Sat., 16 Aug. 0.0416 0.0369 0.0390
19:01-20:00, Sat., 16 Aug. 0.0410 0.0367 0.0393
18:01-19:00, Sat., 16 Aug. 0.0423 0.0363 0.0392
17:01-18:00, Sat., 16 Aug. 0.0414 0.0374 0.0393
16:01-17:00, Sat., 16 Aug. 0.0414 0.0374 0.0393
15:01-16:00, Sat., 16 Aug. 0.0416 0.0368 0.0395
14:01-15:00, Sat., 16 Aug. 0.0419 0.0378 0.0396
13:01-14:00, Sat., 16 Aug. 0.0419 0.0367 0.0393
12:01-13:00, Sat., 16 Aug. 0.0414 0.0363 0.0388
11:01-12:00, Sat., 16 Aug. 0.0414 0.0365 0.0395
10:01-11:00, Sat., 16 Aug. 0.0414 0.0367 0.0390
09:01-10:00, Sat., 16 Aug. 0.0418 0.0375 0.0393
08:01-09:00, Sat., 16 Aug. 0.0412 0.0371 0.0393
07:01-08:00, Sat., 16 Aug. 0.0424 0.0363 0.0391
06:01-07:00, Sat., 16 Aug. 0.0413 0.0368 0.0393
05:01-06:00, Sat., 16 Aug. 0.0416 0.0364 0.0391
04:01-05:00, Sat., 16 Aug. 0.0416 0.0371 0.0391
03:01-04:00, Sat., 16 Aug. 0.0413 0.0374 0.0391
02:01-03:00, Sat., 16 Aug. 0.0407 0.0363 0.0388
01:01-02:00, Sat., 16 Aug. 0.0409 0.0365 0.0388
00:01-01:00, Sat., 16 Aug. 0.0409 0.0365 0.0388
23:01-24:00, Fri., 15 Aug. 0.0411 0.0363 0.0394
22:01-23:00, Fri., 15 Aug. 0.0419 0.0363 0.0392
21:01-22:00, Fri., 15 Aug. 0.0418 0.0366 0.0392
20:01-21:00, Fri., 15 Aug. 0.0420 0.0366 0.0390
19:01-20:00, Fri., 15 Aug. 0.0411 0.0371 0.0391
18:01-19:00, Fri., 15 Aug. 0.0412 0.0368 0.0393
17:01-18:00, Fri., 15 Aug. 0.0416 0.0370 0.0391
16:01-17:00, Fri., 15 Aug. 0.0427 0.0371 0.0393
15:01-16:00, Fri., 15 Aug. 0.0423 0.0372 0.0393
14:01-15:00, Fri., 15 Aug. 0.0411 0.0363 0.0390
13:01-14:00, Fri., 15 Aug. 0.0418 0.0371 0.0391
12:01-13:00, Fri., 15 Aug. 0.0406 0.0357 0.0383
11:01-12:00, Fri., 15 Aug. 0.0413 0.0365 0.0386
10:01-11:00, Fri., 15 Aug. 0.0411 0.0361 0.0383
09:01-10:00, Fri., 15 Aug. 0.0409 0.0363 0.0386
08:01-09:00, Fri., 15 Aug. 0.0417 0.0370 0.0389
07:01-08:00, Fri., 15 Aug. 0.0412 0.0370 0.0391
06:01-07:00, Fri., 15 Aug. 0.0415 0.0365 0.0388
05:01-06:00, Fri., 15 Aug. 0.0416 0.0373 0.0389
04:01-05:00, Fri., 15 Aug. 0.0410 0.0366 0.0389
03:01-04:00, Fri., 15 Aug. 0.0422 0.0370 0.0388
02:01-03:00, Fri., 15 Aug. 0.0416 0.0369 0.0389
01:01-02:00, Fri., 15 Aug. 0.0410 0.0370 0.0388
00:01-01:00, Fri., 15 Aug. 0.0414 0.0370 0.0386
23:01-24:00, Thu., 14 Aug. 0.0409 0.0354 0.0389
22:01-23:00, Thu., 14 Aug. 0.0405 0.0368 0.0385
21:01-22:00, Thu., 14 Aug. 0.0411 0.0367 0.0387
20:01-21:00, Thu., 14 Aug. 0.0412 0.0367 0.0388
19:01-20:00, Thu., 14 Aug. 0.0404 0.0370 0.0388
18:01-19:00, Thu., 14 Aug. 0.0409 0.0366 0.0388
17:01-18:00, Thu., 14 Aug. 0.0413 0.0363 0.0387
16:01-17:00, Thu., 14 Aug. 0.0412 0.0361 0.0389
15:01-16:00, Thu., 14 Aug. 0.0414 0.0363 0.0389
14:01-15:00, Thu., 14 Aug. 0.0406 0.0366 0.0385
13:01-14:00, Thu., 14 Aug. 0.0414 0.0356 0.0384
12:01-13:00, Thu., 14 Aug. 0.0412 0.0370 0.0388
11:01-12:00, Thu., 14 Aug. 0.0407 0.0367 0.0387
10:01-11:00, Thu., 14 Aug. 0.0412 0.0363 0.0388
09:01-10:00, Thu., 14 Aug. 0.0411 0.0363 0.0388
08:01-09:00, Thu., 14 Aug. 0.0405 0.0364 0.0387
07:01-08:00, Thu., 14 Aug. 0.0410 0.0371 0.0387
06:01-07:00, Thu., 14 Aug. 0.0406 0.0363 0.0388
05:01-06:00, Thu., 14 Aug. 0.0407 0.0362 0.0387
04:01-05:00, Thu., 14 Aug. 0.0418 0.0372 0.0390
03:01-04:00, Thu., 14 Aug. 0.0417 0.0369 0.0388
02:01-03:00, Thu., 14 Aug. 0.0412 0.0371 0.0391
01:01-02:00, Thu., 14 Aug. 0.0404 0.0368 0.0389
00:01-01:00, Thu., 14 Aug. 0.0409 0.0363 0.0390
23:01-24:00, Wed., 13 Aug. 0.0416 0.0360 0.0389
22:01-23:00, Wed., 13 Aug. 0.0412 0.0364 0.0388
21:01-22:00, Wed., 13 Aug. 0.0419 0.0364 0.0391
20:01-21:00, Wed., 13 Aug. 0.0418 0.0368 0.0392
19:01-20:00, Wed., 13 Aug. 0.0408 0.0363 0.0390
18:01-19:00, Wed., 13 Aug. 0.0416 0.0363 0.0390
17:01-18:00, Wed., 13 Aug. 0.0406 0.0363 0.0388
16:01-17:00, Wed., 13 Aug. 0.0412 0.0364 0.0389
15:01-16:00, Wed., 13 Aug. 0.0417 0.0367 0.0392
14:01-15:00, Wed., 13 Aug. 0.0408 0.0358 0.0388
13:01-14:00, Wed., 13 Aug. 0.0413 0.0366 0.0387
12:01-13:00, Wed., 13 Aug. 0.0408 0.0368 0.0388
11:01-12:00, Wed., 13 Aug. 0.0409 0.0364 0.0387
10:01-11:00, Wed., 13 Aug. 0.0411 0.0354 0.0386
09:01-10:00, Wed., 13 Aug. 0.0407 0.0368 0.0388
08:01-09:00, Wed., 13 Aug. 0.0409 0.0367 0.0386
07:01-08:00, Wed., 13 Aug. 0.0418 0.0358 0.0384
06:01-07:00, Wed., 13 Aug. 0.0412 0.0363 0.0385
05:01-06:00, Wed., 13 Aug. 0.0402 0.0363 0.0385
04:01-05:00, Wed., 13 Aug. 0.0402 0.0356 0.0383
03:01-04:00, Wed., 13 Aug. 0.0402 0.0361 0.0384
02:01-03:00, Wed., 13 Aug. 0.0411 0.0358 0.0384
01:01-02:00, Wed., 13 Aug. 0.0416 0.0363 0.0387
00:01-01:00, Wed., 13 Aug. 0.0408 0.0369 0.0384
23:01-24:00, Tue., 12 Aug. 0.0412 0.0363 0.0383
22:01-23:00, Tue., 12 Aug. 0.0412 0.0370 0.0386
21:01-22:00, Tue., 12 Aug. 0.0433 0.0381 0.0404
20:01-21:00, Tue., 12 Aug. 0.0478 0.0408 0.0444
19:01-20:00, Tue., 12 Aug. 0.0512 0.0428 0.0474
18:01-19:00, Tue., 12 Aug. 0.0470 0.0369 0.0416
17:01-18:00, Tue., 12 Aug. 0.0406 0.0349 0.0381
16:01-17:00, Tue., 12 Aug. 0.0406 0.0361 0.0383
15:01-16:00, Tue., 12 Aug. 0.0410 0.0358 0.0377
14:01-15:00, Tue., 12 Aug. 0.0392 0.0345 0.0375
13:01-14:00, Tue., 12 Aug. 0.0399 0.0357 0.0377
12:01-13:00, Tue., 12 Aug. 0.0409 0.0353 0.0378
11:01-12:00, Tue., 12 Aug. 0.0406 0.0353 0.0373
10:01-11:00, Tue., 12 Aug. 0.0401 0.0356 0.0377
09:01-10:00, Tue., 12 Aug. 0.0398 0.0351 0.0376
08:01-09:00, Tue., 12 Aug. 0.0401 0.0353 0.0375
07:01-08:00, Tue., 12 Aug. 0.0398 0.0357 0.0376
06:01-07:00, Tue., 12 Aug. 0.0395 0.0358 0.0377
05:01-06:00, Tue., 12 Aug. 0.0411 0.0365 0.0386
04:01-05:00, Tue., 12 Aug. 0.0417 0.0365 0.0390
03:01-04:00, Tue., 12 Aug. 0.0408 0.0349 0.0377
02:01-03:00, Tue., 12 Aug. 0.0398 0.0353 0.0376
01:01-02:00, Tue., 12 Aug. 0.0395 0.0362 0.0375
00:01-01:00, Tue., 12 Aug. 0.0396 0.0348 0.0376
23:01-24:00, Mon., 11 Aug. 0.0414 0.0357 0.0375
22:01-23:00, Mon., 11 Aug. 0.0405 0.0358 0.0376
21:01-22:00, Mon., 11 Aug. 0.0398 0.0359 0.0377
20:01-21:00, Mon., 11 Aug. 0.0401 0.0359 0.0378
19:01-20:00, Mon., 11 Aug. 0.0419 0.0363 0.0386
18:01-19:00, Mon., 11 Aug. 0.0400 0.0349 0.0379
17:01-18:00, Mon., 11 Aug. 0.0412 0.0361 0.0392
16:01-17:00, Mon., 11 Aug. 0.0440 0.0381 0.0415
15:01-16:00, Mon., 11 Aug. 0.0437 0.0386 0.0410
14:01-15:00, Mon., 11 Aug. 0.0506 0.0401 0.0449
13:01-14:00, Mon., 11 Aug. 0.0530 0.0458 0.0494
12:01-13:00, Mon., 11 Aug. 0.0483 0.0391 0.0430
11:01-12:00, Mon., 11 Aug. 0.0507 0.0419 0.0464
10:01-11:00, Mon., 11 Aug. 0.0500 0.0429 0.0461
09:01-10:00, Mon., 11 Aug. 0.0441 0.0377 0.0418
08:01-09:00, Mon., 11 Aug. 0.0429 0.0363 0.0384
07:01-08:00, Mon., 11 Aug. 0.0430 0.0367 0.0395
06:01-07:00, Mon., 11 Aug. 0.0413 0.0360 0.0384
05:01-06:00, Mon., 11 Aug. 0.0419 0.0366 0.0391
04:01-05:00, Mon., 11 Aug. 0.0440 0.0391 0.0419
03:01-04:00, Mon., 11 Aug. 0.0459 0.0393 0.0428
02:01-03:00, Mon., 11 Aug. 0.0489 0.0436 0.0458
01:01-02:00, Mon., 11 Aug. 0.0490 0.0426 0.0452
00:01-01:00, Mon., 11 Aug. 0.0457 0.0359 0.0407
23:01-24:00, Sun., 10 Aug. 0.0402 0.0351 0.0376
22:01-23:00, Sun., 10 Aug. 0.0410 0.0356 0.0378
21:01-22:00, Sun., 10 Aug. 0.0426 0.0364 0.0398
20:01-21:00, Sun., 10 Aug. 0.0490 0.0391 0.0441
19:01-20:00, Sun., 10 Aug. 0.0518 0.0449 0.0486
18:01-19:00, Sun., 10 Aug. 0.0503 0.0442 0.0467
17:01-18:00, Sun., 10 Aug. 0.0482 0.0408 0.0443
16:01-17:00, Sun., 10 Aug. 0.0419 0.0378 0.0401
15:01-16:00, Sun., 10 Aug. 0.0435 0.0385 0.0404
14:01-15:00, Sun., 10 Aug. 0.0467 0.0401 0.0437
13:01-14:00, Sun., 10 Aug. 0.0487 0.0416 0.0451
12:01-13:00, Sun., 10 Aug. 0.0458 0.0398 0.0428
11:01-12:00, Sun., 10 Aug. 0.0484 0.0419 0.0452
10:01-11:00, Sun., 10 Aug. 0.0504 0.0443 0.0481
09:01-10:00, Sun., 10 Aug. 0.0516 0.0470 0.0490
08:01-09:00, Sun., 10 Aug. 0.0497 0.0410 0.0448
07:01-08:00, Sun., 10 Aug. 0.0446 0.0389 0.0411
06:01-07:00, Sun., 10 Aug. 0.0422 0.0383 0.0407
05:01-06:00, Sun., 10 Aug. 0.0439 0.0392 0.0418
04:01-05:00, Sun., 10 Aug. 0.0483 0.0423 0.0445
03:01-04:00, Sun., 10 Aug. 0.0471 0.0413 0.0443
02:01-03:00, Sun., 10 Aug. 0.0453 0.0391 0.0416
01:01-02:00, Sun., 10 Aug. 0.0434 0.0381 0.0408
00:01-01:00, Sun., 10 Aug. 0.0440 0.0384 0.0413
23:01-24:00, Sat., 09 Aug. 0.0440 0.0384 0.0414
22:01-23:00, Sat., 09 Aug. 0.0442 0.0394 0.0412
21:01-22:00, Sat., 09 Aug. 0.0430 0.0392 0.0412
20:01-21:00, Sat., 09 Aug. 0.0438 0.0388 0.0410
19:01-20:00, Sat., 09 Aug. 0.0438 0.0388 0.0409
18:01-19:00, Sat., 09 Aug. 0.0436 0.0380 0.0413
17:01-18:00, Sat., 09 Aug. 0.0426 0.0390 0.0410
16:01-17:00, Sat., 09 Aug. 0.0429 0.0387 0.0412
15:01-16:00, Sat., 09 Aug. 0.0438 0.0398 0.0413
14:01-15:00, Sat., 09 Aug. 0.0437 0.0388 0.0409
13:01-14:00, Sat., 09 Aug. 0.0433 0.0382 0.0410
12:01-13:00, Sat., 09 Aug. 0.0434 0.0393 0.0413
11:01-12:00, Sat., 09 Aug. 0.0443 0.0382 0.0413
10:01-11:00, Sat., 09 Aug. 0.0450 0.0391 0.0410
09:01-10:00, Sat., 09 Aug. 0.0447 0.0384 0.0410
08:01-09:00, Sat., 09 Aug. 0.0435 0.0376 0.0410
07:01-08:00, Sat., 09 Aug. 0.0429 0.0389 0.0412
06:01-07:00, Sat., 09 Aug. 0.0434 0.0398 0.0413
05:01-06:00, Sat., 09 Aug. 0.0439 0.0389 0.0413
04:01-05:00, Sat., 09 Aug. 0.0433 0.0401 0.0414
03:01-04:00, Sat., 09 Aug. 0.0434 0.0391 0.0414
02:01-03:00, Sat., 09 Aug. 0.0443 0.0389 0.0412
01:01-02:00, Sat., 09 Aug. 0.0426 0.0390 0.0410
00:01-01:00, Sat., 09 Aug. 0.0432 0.0386 0.0408
23:01-24:00, Fri., 08 Aug. 0.0428 0.0379 0.0407
22:01-23:00, Fri., 08 Aug. 0.0433 0.0388 0.0409
21:01-22:00, Fri., 08 Aug. 0.0428 0.0393 0.0413
20:01-21:00, Fri., 08 Aug. 0.0444 0.0391 0.0415
19:01-20:00, Fri., 08 Aug. 0.0436 0.0395 0.0416
18:01-19:00, Fri., 08 Aug. 0.0434 0.0396 0.0414
17:01-18:00, Fri., 08 Aug. 0.0442 0.0389 0.0416