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
23:01-24:00, Fri., 29 Mar. 0.0412 0.0364 0.0384
22:01-23:00, Fri., 29 Mar. 0.0405 0.0364 0.0383
21:01-22:00, Fri., 29 Mar. 0.0409 0.0365 0.0385
20:01-21:00, Fri., 29 Mar. 0.0406 0.0364 0.0386
19:01-20:00, Fri., 29 Mar. 0.0403 0.0365 0.0383
18:01-19:00, Fri., 29 Mar. 0.0409 0.0363 0.0386
17:01-18:00, Fri., 29 Mar. 0.0411 0.0367 0.0387
16:01-17:00, Fri., 29 Mar. 0.0409 0.0363 0.0385
15:01-16:00, Fri., 29 Mar. 0.0410 0.0356 0.0389
14:01-15:00, Fri., 29 Mar. 0.0429 0.0370 0.0397
13:01-14:00, Fri., 29 Mar. 0.0436 0.0388 0.0406
12:01-13:00, Fri., 29 Mar. 0.0486 0.0395 0.0437
11:01-12:00, Fri., 29 Mar. 0.0529 0.0462 0.0497
10:01-11:00, Fri., 29 Mar. 0.0509 0.0450 0.0474
09:01-10:00, Fri., 29 Mar. 0.0486 0.0429 0.0460
08:01-09:00, Fri., 29 Mar. 0.0476 0.0417 0.0449
07:01-08:00, Fri., 29 Mar. 0.0435 0.0367 0.0403
06:01-07:00, Fri., 29 Mar. 0.0419 0.0378 0.0397
05:01-06:00, Fri., 29 Mar. 0.0438 0.0383 0.0406
04:01-05:00, Fri., 29 Mar. 0.0423 0.0377 0.0399
03:01-04:00, Fri., 29 Mar. 0.0437 0.0390 0.0413
02:01-03:00, Fri., 29 Mar. 0.0441 0.0377 0.0410
01:01-02:00, Fri., 29 Mar. 0.0438 0.0380 0.0405
00:01-01:00, Fri., 29 Mar. 0.0429 0.0380 0.0406
23:01-24:00, Thu., 28 Mar. 0.0429 0.0377 0.0403
22:01-23:00, Thu., 28 Mar. 0.0426 0.0369 0.0395
21:01-22:00, Thu., 28 Mar. 0.0415 0.0363 0.0390
20:01-21:00, Thu., 28 Mar. 0.0415 0.0364 0.0387
19:01-20:00, Thu., 28 Mar. 0.0413 0.0375 0.0395
18:01-19:00, Thu., 28 Mar. 0.0416 0.0357 0.0386
17:01-18:00, Thu., 28 Mar. 0.0405 0.0365 0.0383
16:01-17:00, Thu., 28 Mar. 0.0404 0.0362 0.0381
15:01-16:00, Thu., 28 Mar. 0.0412 0.0363 0.0385
14:01-15:00, Thu., 28 Mar. 0.0415 0.0363 0.0389
13:01-14:00, Thu., 28 Mar. 0.0417 0.0370 0.0394
12:01-13:00, Thu., 28 Mar. 0.0418 0.0370 0.0390
11:01-12:00, Thu., 28 Mar. 0.0411 0.0363 0.0386
10:01-11:00, Thu., 28 Mar. 0.0408 0.0362 0.0387
09:01-10:00, Thu., 28 Mar. 0.0413 0.0375 0.0393
08:01-09:00, Thu., 28 Mar. 0.0416 0.0378 0.0393
07:01-08:00, Thu., 28 Mar. 0.0426 0.0370 0.0395
06:01-07:00, Thu., 28 Mar. 0.0420 0.0371 0.0395
05:01-06:00, Thu., 28 Mar. 0.0412 0.0373 0.0392
04:01-05:00, Thu., 28 Mar. 0.0412 0.0368 0.0388
03:01-04:00, Thu., 28 Mar. 0.0408 0.0363 0.0389
02:01-03:00, Thu., 28 Mar. 0.0405 0.0370 0.0387
01:01-02:00, Thu., 28 Mar. 0.0413 0.0368 0.0388
00:01-01:00, Thu., 28 Mar. 0.0412 0.0363 0.0384
23:01-24:00, Wed., 27 Mar. 0.0404 0.0357 0.0385
22:01-23:00, Wed., 27 Mar. 0.0405 0.0366 0.0385
21:01-22:00, Wed., 27 Mar. 0.0416 0.0366 0.0384
20:01-21:00, Wed., 27 Mar. 0.0415 0.0363 0.0385
19:01-20:00, Wed., 27 Mar. 0.0412 0.0363 0.0383
18:01-19:00, Wed., 27 Mar. 0.0401 0.0356 0.0381
17:01-18:00, Wed., 27 Mar. 0.0401 0.0363 0.0384
16:01-17:00, Wed., 27 Mar. 0.0404 0.0360 0.0383
15:01-16:00, Wed., 27 Mar. 0.0409 0.0362 0.0387
14:01-15:00, Wed., 27 Mar. 0.0409 0.0366 0.0387
13:01-14:00, Wed., 27 Mar. 0.0411 0.0363 0.0388
12:01-13:00, Wed., 27 Mar. 0.0416 0.0363 0.0387
11:01-12:00, Wed., 27 Mar. 0.0418 0.0361 0.0389
10:01-11:00, Wed., 27 Mar. 0.0411 0.0356 0.0385
09:01-10:00, Wed., 27 Mar. 0.0415 0.0360 0.0387
08:01-09:00, Wed., 27 Mar. 0.0409 0.0365 0.0390
07:01-08:00, Wed., 27 Mar. 0.0418 0.0367 0.0389
06:01-07:00, Wed., 27 Mar. 0.0406 0.0371 0.0387
05:01-06:00, Wed., 27 Mar. 0.0405 0.0365 0.0387
04:01-05:00, Wed., 27 Mar. 0.0416 0.0355 0.0387
03:01-04:00, Wed., 27 Mar. 0.0409 0.0368 0.0388
02:01-03:00, Wed., 27 Mar. 0.0405 0.0367 0.0387
01:01-02:00, Wed., 27 Mar. 0.0413 0.0369 0.0388
00:01-01:00, Wed., 27 Mar. 0.0419 0.0363 0.0395
23:01-24:00, Tue., 26 Mar. 0.0468 0.0382 0.0415
22:01-23:00, Tue., 26 Mar. 0.0458 0.0402 0.0434
21:01-22:00, Tue., 26 Mar. 0.0534 0.0430 0.0481
20:01-21:00, Tue., 26 Mar. 0.0552 0.0487 0.0516
19:01-20:00, Tue., 26 Mar. 0.0569 0.0507 0.0539
18:01-19:00, Tue., 26 Mar. 0.0576 0.0520 0.0544
17:01-18:00, Tue., 26 Mar. 0.0599 0.0504 0.0555
16:01-17:00, Tue., 26 Mar. 0.0680 0.0578 0.0634
15:01-16:00, Tue., 26 Mar. 0.0676 0.0544 0.0619
14:01-15:00, Tue., 26 Mar. 0.0627 0.0528 0.0583
13:01-14:00, Tue., 26 Mar. 0.0628 0.0534 0.0579
12:01-13:00, Tue., 26 Mar. 0.0631 0.0572 0.0605
11:01-12:00, Tue., 26 Mar. 0.0628 0.0567 0.0593
10:01-11:00, Tue., 26 Mar. 0.0624 0.0530 0.0564
09:01-10:00, Tue., 26 Mar. 0.0606 0.0525 0.0570
08:01-09:00, Tue., 26 Mar. 0.0586 0.0390 0.0509
07:01-08:00, Tue., 26 Mar. 0.0425 0.0381 0.0402
06:01-07:00, Tue., 26 Mar. 0.0417 0.0374 0.0399
05:01-06:00, Tue., 26 Mar. 0.0424 0.0381 0.0398
04:01-05:00, Tue., 26 Mar. 0.0425 0.0374 0.0397
03:01-04:00, Tue., 26 Mar. 0.0415 0.0377 0.0399
02:01-03:00, Tue., 26 Mar. 0.0430 0.0367 0.0399
01:01-02:00, Tue., 26 Mar. 0.0416 0.0373 0.0393
00:01-01:00, Tue., 26 Mar. 0.0415 0.0370 0.0392
23:01-24:00, Mon., 25 Mar. 0.0416 0.0370 0.0391
22:01-23:00, Mon., 25 Mar. 0.0412 0.0365 0.0388
21:01-22:00, Mon., 25 Mar. 0.0414 0.0369 0.0391
20:01-21:00, Mon., 25 Mar. 0.0414 0.0363 0.0390
19:01-20:00, Mon., 25 Mar. 0.0414 0.0360 0.0388
18:01-19:00, Mon., 25 Mar. 0.0416 0.0369 0.0390
17:01-18:00, Mon., 25 Mar. 0.0419 0.0366 0.0392
16:01-17:00, Mon., 25 Mar. 0.0423 0.0374 0.0400
15:01-16:00, Mon., 25 Mar. 0.0465 0.0391 0.0422
14:01-15:00, Mon., 25 Mar. 0.0483 0.0427 0.0452
13:01-14:00, Mon., 25 Mar. 0.0496 0.0438 0.0463
12:01-13:00, Mon., 25 Mar. 0.0486 0.0419 0.0457
11:01-12:00, Mon., 25 Mar. 0.0497 0.0419 0.0460
10:01-11:00, Mon., 25 Mar. 0.0520 0.0456 0.0485
09:01-10:00, Mon., 25 Mar. 0.0551 0.0486 0.0518
08:01-09:00, Mon., 25 Mar. 0.0558 0.0498 0.0524
07:01-08:00, Mon., 25 Mar. 0.0546 0.0478 0.0510
06:01-07:00, Mon., 25 Mar. 0.0516 0.0458 0.0490
05:01-06:00, Mon., 25 Mar. 0.0527 0.0457 0.0496
04:01-05:00, Mon., 25 Mar. 0.0477 0.0415 0.0447
03:01-04:00, Mon., 25 Mar. 0.0487 0.0426 0.0458
02:01-03:00, Mon., 25 Mar. 0.0467 0.0421 0.0439
01:01-02:00, Mon., 25 Mar. 0.0480 0.0398 0.0428
00:01-01:00, Mon., 25 Mar. 0.0438 0.0397 0.0417
23:01-24:00, Sun., 24 Mar. 0.0424 0.0363 0.0400
22:01-23:00, Sun., 24 Mar. 0.0430 0.0380 0.0400
21:01-22:00, Sun., 24 Mar. 0.0440 0.0382 0.0416
20:01-21:00, Sun., 24 Mar. 0.0461 0.0402 0.0432
19:01-20:00, Sun., 24 Mar. 0.0484 0.0425 0.0452
18:01-19:00, Sun., 24 Mar. 0.0483 0.0429 0.0458
17:01-18:00, Sun., 24 Mar. 0.0443 0.0370 0.0405
16:01-17:00, Sun., 24 Mar. 0.0415 0.0362 0.0390
15:01-16:00, Sun., 24 Mar. 0.0411 0.0373 0.0390
14:01-15:00, Sun., 24 Mar. 0.0412 0.0367 0.0390
13:01-14:00, Sun., 24 Mar. 0.0413 0.0373 0.0393
12:01-13:00, Sun., 24 Mar. 0.0415 0.0370 0.0393
11:01-12:00, Sun., 24 Mar. 0.0432 0.0372 0.0400
10:01-11:00, Sun., 24 Mar. 0.0423 0.0381 0.0403
09:01-10:00, Sun., 24 Mar. 0.0430 0.0386 0.0406
08:01-09:00, Sun., 24 Mar. 0.0429 0.0384 0.0407
07:01-08:00, Sun., 24 Mar. 0.0430 0.0390 0.0411
06:01-07:00, Sun., 24 Mar. 0.0429 0.0390 0.0410
05:01-06:00, Sun., 24 Mar. 0.0434 0.0381 0.0411
04:01-05:00, Sun., 24 Mar. 0.0425 0.0384 0.0409
03:01-04:00, Sun., 24 Mar. 0.0433 0.0391 0.0410
02:01-03:00, Sun., 24 Mar. 0.0435 0.0391 0.0409
01:01-02:00, Sun., 24 Mar. 0.0442 0.0387 0.0411
00:01-01:00, Sun., 24 Mar. 0.0434 0.0383 0.0408
23:01-24:00, Sat., 23 Mar. 0.0433 0.0381 0.0410
22:01-23:00, Sat., 23 Mar. 0.0433 0.0382 0.0405
21:01-22:00, Sat., 23 Mar. 0.0426 0.0381 0.0402
20:01-21:00, Sat., 23 Mar. 0.0433 0.0384 0.0407
19:01-20:00, Sat., 23 Mar. 0.0429 0.0387 0.0403
18:01-19:00, Sat., 23 Mar. 0.0435 0.0382 0.0404
17:01-18:00, Sat., 23 Mar. 0.0430 0.0379 0.0403
16:01-17:00, Sat., 23 Mar. 0.0422 0.0386 0.0405
15:01-16:00, Sat., 23 Mar. 0.0433 0.0387 0.0410
14:01-15:00, Sat., 23 Mar. 0.0433 0.0388 0.0408
13:01-14:00, Sat., 23 Mar. 0.0442 0.0392 0.0412
12:01-13:00, Sat., 23 Mar. 0.0440 0.0399 0.0416
11:01-12:00, Sat., 23 Mar. 0.0447 0.0387 0.0417
10:01-11:00, Sat., 23 Mar. 0.0475 0.0409 0.0441
09:01-10:00, Sat., 23 Mar. 0.0506 0.0448 0.0474
08:01-09:00, Sat., 23 Mar. 0.0482 0.0401 0.0437
07:01-08:00, Sat., 23 Mar. 0.0436 0.0385 0.0415
06:01-07:00, Sat., 23 Mar. 0.0436 0.0388 0.0413
05:01-06:00, Sat., 23 Mar. 0.0438 0.0391 0.0412
04:01-05:00, Sat., 23 Mar. 0.0438 0.0384 0.0405
03:01-04:00, Sat., 23 Mar. 0.0420 0.0376 0.0401
02:01-03:00, Sat., 23 Mar. 0.0423 0.0378 0.0406
01:01-02:00, Sat., 23 Mar. 0.0435 0.0373 0.0404
00:01-01:00, Sat., 23 Mar. 0.0433 0.0370 0.0399
23:01-24:00, Fri., 22 Mar. 0.0419 0.0376 0.0399
22:01-23:00, Fri., 22 Mar. 0.0419 0.0377 0.0398
21:01-22:00, Fri., 22 Mar. 0.0417 0.0381 0.0398
20:01-21:00, Fri., 22 Mar. 0.0421 0.0377 0.0397
19:01-20:00, Fri., 22 Mar. 0.0419 0.0372 0.0399
18:01-19:00, Fri., 22 Mar. 0.0429 0.0370 0.0400
17:01-18:00, Fri., 22 Mar. 0.0423 0.0377 0.0397
16:01-17:00, Fri., 22 Mar. 0.0418 0.0373 0.0397
15:01-16:00, Fri., 22 Mar. 0.0412 0.0378 0.0397
14:01-15:00, Fri., 22 Mar. 0.0423 0.0369 0.0400
13:01-14:00, Fri., 22 Mar. 0.0420 0.0367 0.0400
12:01-13:00, Fri., 22 Mar. 0.0421 0.0371 0.0398
11:01-12:00, Fri., 22 Mar. 0.0427 0.0382 0.0403
10:01-11:00, Fri., 22 Mar. 0.0425 0.0379 0.0403
09:01-10:00, Fri., 22 Mar. 0.0434 0.0385 0.0405
08:01-09:00, Fri., 22 Mar. 0.0427 0.0384 0.0404
07:01-08:00, Fri., 22 Mar. 0.0438 0.0388 0.0411
06:01-07:00, Fri., 22 Mar. 0.0436 0.0385 0.0408
05:01-06:00, Fri., 22 Mar. 0.0432 0.0384 0.0408
04:01-05:00, Fri., 22 Mar. 0.0426 0.0386 0.0407
03:01-04:00, Fri., 22 Mar. 0.0432 0.0384 0.0409
02:01-03:00, Fri., 22 Mar. 0.0428 0.0382 0.0406
01:01-02:00, Fri., 22 Mar. 0.0435 0.0372 0.0407
00:01-01:00, Fri., 22 Mar. 0.0426 0.0384 0.0408
23:01-24:00, Thu., 21 Mar. 0.0438 0.0388 0.0411
22:01-23:00, Thu., 21 Mar. 0.0433 0.0385 0.0408
21:01-22:00, Thu., 21 Mar. 0.0443 0.0387 0.0409
20:01-21:00, Thu., 21 Mar. 0.0428 0.0382 0.0405
19:01-20:00, Thu., 21 Mar. 0.0426 0.0379 0.0404
18:01-19:00, Thu., 21 Mar. 0.0423 0.0380 0.0405
17:01-18:00, Thu., 21 Mar. 0.0428 0.0381 0.0404
16:01-17:00, Thu., 21 Mar. 0.0430 0.0378 0.0401
15:01-16:00, Thu., 21 Mar. 0.0433 0.0387 0.0404
14:01-15:00, Thu., 21 Mar. 0.0428 0.0382 0.0404
13:01-14:00, Thu., 21 Mar. 0.0428 0.0377 0.0405
12:01-13:00, Thu., 21 Mar. 0.0420 0.0378 0.0402
11:01-12:00, Thu., 21 Mar. 0.0429 0.0382 0.0403
10:01-11:00, Thu., 21 Mar. 0.0419 0.0379 0.0401
09:01-10:00, Thu., 21 Mar. 0.0432 0.0381 0.0401
08:01-09:00, Thu., 21 Mar. 0.0425 0.0382 0.0402
07:01-08:00, Thu., 21 Mar. 0.0439 0.0390 0.0409
06:01-07:00, Thu., 21 Mar. 0.0436 0.0392 0.0411
05:01-06:00, Thu., 21 Mar. 0.0440 0.0388 0.0410
04:01-05:00, Thu., 21 Mar. 0.0430 0.0381 0.0409
03:01-04:00, Thu., 21 Mar. 0.0435 0.0386 0.0409
02:01-03:00, Thu., 21 Mar. 0.0436 0.0389 0.0410
01:01-02:00, Thu., 21 Mar. 0.0440 0.0388 0.0412
00:01-01:00, Thu., 21 Mar. 0.0433 0.0391 0.0410
23:01-24:00, Wed., 20 Mar. 0.0432 0.0391 0.0408
22:01-23:00, Wed., 20 Mar. 0.0429 0.0374 0.0407
21:01-22:00, Wed., 20 Mar. 0.0426 0.0382 0.0406
20:01-21:00, Wed., 20 Mar. 0.0440 0.0381 0.0407
19:01-20:00, Wed., 20 Mar. 0.0438 0.0392 0.0416
18:01-19:00, Wed., 20 Mar. 0.0475 0.0407 0.0440
17:01-18:00, Wed., 20 Mar. 0.0549 0.0448 0.0508
16:01-17:00, Wed., 20 Mar. 0.0566 0.0385 0.0457
15:01-16:00, Wed., 20 Mar. 0.0460 0.0406 0.0431
14:01-15:00, Wed., 20 Mar. 0.0500 0.0437 0.0473
13:01-14:00, Wed., 20 Mar. 0.0487 0.0380 0.0422
12:01-13:00, Wed., 20 Mar. 0.0426 0.0392 0.0409
11:01-12:00, Wed., 20 Mar. 0.0440 0.0380 0.0410
10:01-11:00, Wed., 20 Mar. 0.0438 0.0388 0.0415
09:01-10:00, Wed., 20 Mar. 0.0433 0.0382 0.0409
08:01-09:00, Wed., 20 Mar. 0.0429 0.0386 0.0406
07:01-08:00, Wed., 20 Mar. 0.0429 0.0380 0.0406
06:01-07:00, Wed., 20 Mar. 0.0429 0.0380 0.0408
05:01-06:00, Wed., 20 Mar. 0.0429 0.0384 0.0404
04:01-05:00, Wed., 20 Mar. 0.0426 0.0381 0.0405
03:01-04:00, Wed., 20 Mar. 0.0436 0.0384 0.0407
02:01-03:00, Wed., 20 Mar. 0.0424 0.0388 0.0406
01:01-02:00, Wed., 20 Mar. 0.0438 0.0384 0.0404
00:01-01:00, Wed., 20 Mar. 0.0421 0.0384 0.0404