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, Sat., 27 Jul. 0.0426 0.0381 0.0403
15:01-16:00, Sat., 27 Jul. 0.0419 0.0382 0.0404
14:01-15:00, Sat., 27 Jul. 0.0425 0.0385 0.0404
13:01-14:00, Sat., 27 Jul. 0.0427 0.0379 0.0406
12:01-13:00, Sat., 27 Jul. 0.0423 0.0378 0.0400
11:01-12:00, Sat., 27 Jul. 0.0432 0.0371 0.0399
10:01-11:00, Sat., 27 Jul. 0.0419 0.0367 0.0397
09:01-10:00, Sat., 27 Jul. 0.0420 0.0377 0.0400
08:01-09:00, Sat., 27 Jul. 0.0430 0.0382 0.0404
07:01-08:00, Sat., 27 Jul. 0.0425 0.0382 0.0404
06:01-07:00, Sat., 27 Jul. 0.0432 0.0374 0.0406
05:01-06:00, Sat., 27 Jul. 0.0433 0.0377 0.0407
04:01-05:00, Sat., 27 Jul. 0.0429 0.0370 0.0406
03:01-04:00, Sat., 27 Jul. 0.0425 0.0375 0.0402
02:01-03:00, Sat., 27 Jul. 0.0432 0.0387 0.0406
01:01-02:00, Sat., 27 Jul. 0.0423 0.0386 0.0402
00:01-01:00, Sat., 27 Jul. 0.0436 0.0385 0.0405
23:01-24:00, Fri., 26 Jul. 0.0458 0.0377 0.0421
22:01-23:00, Fri., 26 Jul. 0.0475 0.0427 0.0452
21:01-22:00, Fri., 26 Jul. 0.0464 0.0379 0.0411
20:01-21:00, Fri., 26 Jul. 0.0419 0.0360 0.0397
19:01-20:00, Fri., 26 Jul. 0.0415 0.0373 0.0400
18:01-19:00, Fri., 26 Jul. 0.0423 0.0377 0.0401
17:01-18:00, Fri., 26 Jul. 0.0427 0.0374 0.0400
16:01-17:00, Fri., 26 Jul. 0.0428 0.0381 0.0400
15:01-16:00, Fri., 26 Jul. 0.0423 0.0378 0.0402
14:01-15:00, Fri., 26 Jul. 0.0419 0.0370 0.0402
13:01-14:00, Fri., 26 Jul. 0.0419 0.0379 0.0398
12:01-13:00, Fri., 26 Jul. 0.0429 0.0382 0.0403
11:01-12:00, Fri., 26 Jul. 0.0429 0.0374 0.0401
10:01-11:00, Fri., 26 Jul. 0.0420 0.0377 0.0400
09:01-10:00, Fri., 26 Jul. 0.0426 0.0374 0.0401
08:01-09:00, Fri., 26 Jul. 0.0423 0.0381 0.0402
07:01-08:00, Fri., 26 Jul. 0.0432 0.0381 0.0402
06:01-07:00, Fri., 26 Jul. 0.0423 0.0381 0.0403
05:01-06:00, Fri., 26 Jul. 0.0423 0.0370 0.0398
04:01-05:00, Fri., 26 Jul. 0.0433 0.0381 0.0405
03:01-04:00, Fri., 26 Jul. 0.0427 0.0381 0.0406
02:01-03:00, Fri., 26 Jul. 0.0423 0.0367 0.0401
01:01-02:00, Fri., 26 Jul. 0.0421 0.0373 0.0402
00:01-01:00, Fri., 26 Jul. 0.0436 0.0386 0.0404
23:01-24:00, Thu., 25 Jul. 0.0431 0.0374 0.0402
22:01-23:00, Thu., 25 Jul. 0.0421 0.0382 0.0402
21:01-22:00, Thu., 25 Jul. 0.0443 0.0392 0.0416
20:01-21:00, Thu., 25 Jul. 0.0517 0.0416 0.0465
19:01-20:00, Thu., 25 Jul. 0.0589 0.0505 0.0550
18:01-19:00, Thu., 25 Jul. 0.0531 0.0381 0.0434
17:01-18:00, Thu., 25 Jul. 0.0416 0.0374 0.0399
16:01-17:00, Thu., 25 Jul. 0.0426 0.0370 0.0400
15:01-16:00, Thu., 25 Jul. 0.0433 0.0373 0.0399
14:01-15:00, Thu., 25 Jul. 0.0422 0.0378 0.0402
13:01-14:00, Thu., 25 Jul. 0.0426 0.0379 0.0403
12:01-13:00, Thu., 25 Jul. 0.0427 0.0375 0.0402
11:01-12:00, Thu., 25 Jul. 0.0436 0.0380 0.0401
10:01-11:00, Thu., 25 Jul. 0.0422 0.0385 0.0402
09:01-10:00, Thu., 25 Jul. 0.0427 0.0381 0.0404
08:01-09:00, Thu., 25 Jul. 0.0431 0.0387 0.0406
07:01-08:00, Thu., 25 Jul. 0.0430 0.0384 0.0407
06:01-07:00, Thu., 25 Jul. 0.0433 0.0379 0.0405
05:01-06:00, Thu., 25 Jul. 0.0433 0.0370 0.0404
04:01-05:00, Thu., 25 Jul. 0.0426 0.0382 0.0399
03:01-04:00, Thu., 25 Jul. 0.0435 0.0381 0.0401
02:01-03:00, Thu., 25 Jul. 0.0428 0.0379 0.0399
01:01-02:00, Thu., 25 Jul. 0.0427 0.0384 0.0402
00:01-01:00, Thu., 25 Jul. 0.0424 0.0380 0.0400
23:01-24:00, Wed., 24 Jul. 0.0424 0.0377 0.0400
22:01-23:00, Wed., 24 Jul. 0.0419 0.0377 0.0398
21:01-22:00, Wed., 24 Jul. 0.0426 0.0372 0.0397
20:01-21:00, Wed., 24 Jul. 0.0422 0.0376 0.0399
19:01-20:00, Wed., 24 Jul. 0.0424 0.0382 0.0402
18:01-19:00, Wed., 24 Jul. 0.0427 0.0379 0.0403
17:01-18:00, Wed., 24 Jul. 0.0423 0.0374 0.0399
16:01-17:00, Wed., 24 Jul. 0.0422 0.0370 0.0399
15:01-16:00, Wed., 24 Jul. 0.0423 0.0376 0.0400
14:01-15:00, Wed., 24 Jul. 0.0420 0.0366 0.0400
13:01-14:00, Wed., 24 Jul. 0.0419 0.0380 0.0399
12:01-13:00, Wed., 24 Jul. 0.0422 0.0381 0.0399
11:01-12:00, Wed., 24 Jul. 0.0421 0.0382 0.0398
10:01-11:00, Wed., 24 Jul. 0.0420 0.0374 0.0399
09:01-10:00, Wed., 24 Jul. 0.0419 0.0371 0.0398
08:01-09:00, Wed., 24 Jul. 0.0432 0.0376 0.0400
07:01-08:00, Wed., 24 Jul. 0.0423 0.0379 0.0396
06:01-07:00, Wed., 24 Jul. 0.0420 0.0367 0.0397
05:01-06:00, Wed., 24 Jul. 0.0419 0.0371 0.0397
04:01-05:00, Wed., 24 Jul. 0.0422 0.0376 0.0396
03:01-04:00, Wed., 24 Jul. 0.0429 0.0372 0.0395
02:01-03:00, Wed., 24 Jul. 0.0429 0.0367 0.0393
01:01-02:00, Wed., 24 Jul. 0.0419 0.0371 0.0395
00:01-01:00, Wed., 24 Jul. 0.0417 0.0360 0.0395
23:01-24:00, Tue., 23 Jul. 0.0425 0.0366 0.0394
22:01-23:00, Tue., 23 Jul. 0.0417 0.0374 0.0394
21:01-22:00, Tue., 23 Jul. 0.0416 0.0371 0.0394
20:01-21:00, Tue., 23 Jul. 0.0430 0.0379 0.0397
19:01-20:00, Tue., 23 Jul. 0.0411 0.0370 0.0393
18:01-19:00, Tue., 23 Jul. 0.0417 0.0379 0.0395
17:01-18:00, Tue., 23 Jul. 0.0419 0.0373 0.0396
16:01-17:00, Tue., 23 Jul. 0.0428 0.0380 0.0397
15:01-16:00, Tue., 23 Jul. 0.0417 0.0372 0.0396
14:01-15:00, Tue., 23 Jul. 0.0415 0.0373 0.0395
13:01-14:00, Tue., 23 Jul. 0.0425 0.0378 0.0396
12:01-13:00, Tue., 23 Jul. 0.0431 0.0361 0.0400
11:01-12:00, Tue., 23 Jul. 0.0421 0.0372 0.0399
10:01-11:00, Tue., 23 Jul. 0.0423 0.0370 0.0398
09:01-10:00, Tue., 23 Jul. 0.0417 0.0376 0.0396
08:01-09:00, Tue., 23 Jul. 0.0423 0.0367 0.0395
07:01-08:00, Tue., 23 Jul. 0.0420 0.0363 0.0401
06:01-07:00, Tue., 23 Jul. 0.0426 0.0377 0.0401
05:01-06:00, Tue., 23 Jul. 0.0424 0.0375 0.0401
04:01-05:00, Tue., 23 Jul. 0.0426 0.0373 0.0402
03:01-04:00, Tue., 23 Jul. 0.0425 0.0374 0.0398
02:01-03:00, Tue., 23 Jul. 0.0424 0.0378 0.0396
01:01-02:00, Tue., 23 Jul. 0.0420 0.0377 0.0400
00:01-01:00, Tue., 23 Jul. 0.0422 0.0381 0.0403
23:01-24:00, Mon., 22 Jul. 0.0450 0.0384 0.0419
22:01-23:00, Mon., 22 Jul. 0.0461 0.0370 0.0419
21:01-22:00, Mon., 22 Jul. 0.0423 0.0364 0.0395
20:01-21:00, Mon., 22 Jul. 0.0428 0.0379 0.0399
19:01-20:00, Mon., 22 Jul. 0.0425 0.0374 0.0396
18:01-19:00, Mon., 22 Jul. 0.0412 0.0377 0.0396
17:01-18:00, Mon., 22 Jul. 0.0424 0.0375 0.0396
16:01-17:00, Mon., 22 Jul. 0.0425 0.0368 0.0397
15:01-16:00, Mon., 22 Jul. 0.0425 0.0374 0.0396
14:01-15:00, Mon., 22 Jul. 0.0416 0.0380 0.0397
13:01-14:00, Mon., 22 Jul. 0.0424 0.0375 0.0398
12:01-13:00, Mon., 22 Jul. 0.0581 0.0374 0.0400
11:01-12:00, Mon., 22 Jul. 0.0424 0.0379 0.0400
10:01-11:00, Mon., 22 Jul. 0.0421 0.0376 0.0396
09:01-10:00, Mon., 22 Jul. 0.0426 0.0380 0.0395
08:01-09:00, Mon., 22 Jul. 0.0426 0.0369 0.0395
07:01-08:00, Mon., 22 Jul. 0.0424 0.0373 0.0395
06:01-07:00, Mon., 22 Jul. 0.0419 0.0371 0.0393
05:01-06:00, Mon., 22 Jul. 0.0419 0.0367 0.0392
04:01-05:00, Mon., 22 Jul. 0.0411 0.0365 0.0387
03:01-04:00, Mon., 22 Jul. 0.0413 0.0364 0.0387
02:01-03:00, Mon., 22 Jul. 0.0411 0.0360 0.0385
01:01-02:00, Mon., 22 Jul. 0.0405 0.0367 0.0386
00:01-01:00, Mon., 22 Jul. 0.0409 0.0360 0.0386
23:01-24:00, Sun., 21 Jul. 0.0412 0.0371 0.0391
22:01-23:00, Sun., 21 Jul. 0.0423 0.0363 0.0390
21:01-22:00, Sun., 21 Jul. 0.0418 0.0371 0.0392
20:01-21:00, Sun., 21 Jul. 0.0417 0.0365 0.0389
19:01-20:00, Sun., 21 Jul. 0.0415 0.0364 0.0393
18:01-19:00, Sun., 21 Jul. 0.0411 0.0373 0.0391
17:01-18:00, Sun., 21 Jul. 0.0416 0.0368 0.0392
16:01-17:00, Sun., 21 Jul. 0.0418 0.0356 0.0390
15:01-16:00, Sun., 21 Jul. 0.0411 0.0371 0.0391
14:01-15:00, Sun., 21 Jul. 0.0410 0.0365 0.0387
13:01-14:00, Sun., 21 Jul. 0.0418 0.0367 0.0389
12:01-13:00, Sun., 21 Jul. 0.0409 0.0372 0.0390
11:01-12:00, Sun., 21 Jul. 0.0409 0.0364 0.0387
10:01-11:00, Sun., 21 Jul. 0.0411 0.0363 0.0388
09:01-10:00, Sun., 21 Jul. 0.0415 0.0357 0.0385
08:01-09:00, Sun., 21 Jul. 0.0403 0.0363 0.0384
07:01-08:00, Sun., 21 Jul. 0.0405 0.0374 0.0388
06:01-07:00, Sun., 21 Jul. 0.0410 0.0374 0.0390
05:01-06:00, Sun., 21 Jul. 0.0417 0.0370 0.0396
04:01-05:00, Sun., 21 Jul. 0.0431 0.0368 0.0403
03:01-04:00, Sun., 21 Jul. 0.0439 0.0373 0.0410
02:01-03:00, Sun., 21 Jul. 0.0513 0.0419 0.0469
01:01-02:00, Sun., 21 Jul. 0.0611 0.0489 0.0556
00:01-01:00, Sun., 21 Jul. 0.0617 0.0463 0.0548
23:01-24:00, Sat., 20 Jul. 0.0572 0.0470 0.0512
22:01-23:00, Sat., 20 Jul. 0.0673 0.0556 0.0622
21:01-22:00, Sat., 20 Jul. 0.0609 0.0399 0.0469
20:01-21:00, Sat., 20 Jul. 0.0450 0.0388 0.0422
19:01-20:00, Sat., 20 Jul. 0.0447 0.0379 0.0407
18:01-19:00, Sat., 20 Jul. 0.0419 0.0369 0.0395
17:01-18:00, Sat., 20 Jul. 0.0422 0.0368 0.0397
16:01-17:00, Sat., 20 Jul. 0.0430 0.0368 0.0397
15:01-16:00, Sat., 20 Jul. 0.0409 0.0367 0.0393
14:01-15:00, Sat., 20 Jul. 0.0417 0.0372 0.0396
13:01-14:00, Sat., 20 Jul. 0.0426 0.0369 0.0395
12:01-13:00, Sat., 20 Jul. 0.0413 0.0363 0.0394
11:01-12:00, Sat., 20 Jul. 0.0416 0.0373 0.0391
10:01-11:00, Sat., 20 Jul. 0.0410 0.0373 0.0389
09:01-10:00, Sat., 20 Jul. 0.0417 0.0365 0.0387
08:01-09:00, Sat., 20 Jul. 0.0405 0.0369 0.0388
07:01-08:00, Sat., 20 Jul. 0.0414 0.0366 0.0390
06:01-07:00, Sat., 20 Jul. 0.0408 0.0363 0.0391
05:01-06:00, Sat., 20 Jul. 0.0415 0.0374 0.0393
04:01-05:00, Sat., 20 Jul. 0.0411 0.0364 0.0390
03:01-04:00, Sat., 20 Jul. 0.0412 0.0364 0.0387
02:01-03:00, Sat., 20 Jul. 0.0426 0.0367 0.0389
01:01-02:00, Sat., 20 Jul. 0.0405 0.0368 0.0389
00:01-01:00, Sat., 20 Jul. 0.0407 0.0367 0.0388
23:01-24:00, Fri., 19 Jul. 0.0419 0.0368 0.0391
22:01-23:00, Fri., 19 Jul. 0.0414 0.0361 0.0390
21:01-22:00, Fri., 19 Jul. 0.0414 0.0370 0.0390
20:01-21:00, Fri., 19 Jul. 0.0411 0.0363 0.0388
19:01-20:00, Fri., 19 Jul. 0.0407 0.0364 0.0387
18:01-19:00, Fri., 19 Jul. 0.0416 0.0367 0.0390
17:01-18:00, Fri., 19 Jul. 0.0414 0.0363 0.0390
16:01-17:00, Fri., 19 Jul. 0.0416 0.0367 0.0390
15:01-16:00, Fri., 19 Jul. 0.0409 0.0369 0.0389
14:01-15:00, Fri., 19 Jul. 0.0409 0.0360 0.0388
13:01-14:00, Fri., 19 Jul. 0.0412 0.0359 0.0384
12:01-13:00, Fri., 19 Jul. 0.0419 0.0353 0.0385
11:01-12:00, Fri., 19 Jul. 0.0409 0.0370 0.0385
10:01-11:00, Fri., 19 Jul. 0.0408 0.0370 0.0388
09:01-10:00, Fri., 19 Jul. 0.0413 0.0358 0.0386
08:01-09:00, Fri., 19 Jul. 0.0400 0.0364 0.0385
07:01-08:00, Fri., 19 Jul. 0.0406 0.0364 0.0386
06:01-07:00, Fri., 19 Jul. 0.0419 0.0364 0.0384
05:01-06:00, Fri., 19 Jul. 0.0408 0.0361 0.0384
04:01-05:00, Fri., 19 Jul. 0.0407 0.0364 0.0385
03:01-04:00, Fri., 19 Jul. 0.0403 0.0357 0.0385
02:01-03:00, Fri., 19 Jul. 0.0415 0.0363 0.0385
01:01-02:00, Fri., 19 Jul. 0.0416 0.0361 0.0384
00:01-01:00, Fri., 19 Jul. 0.0409 0.0362 0.0386
23:01-24:00, Thu., 18 Jul. 0.0413 0.0368 0.0388
22:01-23:00, Thu., 18 Jul. 0.0405 0.0361 0.0387
21:01-22:00, Thu., 18 Jul. 0.0404 0.0366 0.0385
20:01-21:00, Thu., 18 Jul. 0.0411 0.0354 0.0388
19:01-20:00, Thu., 18 Jul. 0.0412 0.0365 0.0388
18:01-19:00, Thu., 18 Jul. 0.0409 0.0364 0.0390
17:01-18:00, Thu., 18 Jul. 0.0411 0.0366 0.0390
16:01-17:00, Thu., 18 Jul. 0.0412 0.0365 0.0393
15:01-16:00, Thu., 18 Jul. 0.0423 0.0374 0.0393
14:01-15:00, Thu., 18 Jul. 0.0408 0.0367 0.0389
13:01-14:00, Thu., 18 Jul. 0.0412 0.0369 0.0389
12:01-13:00, Thu., 18 Jul. 0.0411 0.0365 0.0387
11:01-12:00, Thu., 18 Jul. 0.0412 0.0363 0.0389
10:01-11:00, Thu., 18 Jul. 0.0413 0.0359 0.0387
09:01-10:00, Thu., 18 Jul. 0.0410 0.0372 0.0388
08:01-09:00, Thu., 18 Jul. 0.0412 0.0366 0.0389
07:01-08:00, Thu., 18 Jul. 0.0415 0.0364 0.0388
06:01-07:00, Thu., 18 Jul. 0.0416 0.0374 0.0390
05:01-06:00, Thu., 18 Jul. 0.0409 0.0367 0.0389
04:01-05:00, Thu., 18 Jul. 0.0413 0.0369 0.0391
03:01-04:00, Thu., 18 Jul. 0.0407 0.0364 0.0389
02:01-03:00, Thu., 18 Jul. 0.0416 0.0359 0.0387
01:01-02:00, Thu., 18 Jul. 0.0408 0.0365 0.0386
00:01-01:00, Thu., 18 Jul. 0.0409 0.0363 0.0386
23:01-24:00, Wed., 17 Jul. 0.0418 0.0356 0.0385
22:01-23:00, Wed., 17 Jul. 0.0409 0.0368 0.0385
21:01-22:00, Wed., 17 Jul. 0.0416 0.0360 0.0385
20:01-21:00, Wed., 17 Jul. 0.0402 0.0363 0.0384
19:01-20:00, Wed., 17 Jul. 0.0409 0.0363 0.0386
18:01-19:00, Wed., 17 Jul. 0.0415 0.0358 0.0386
17:01-18:00, Wed., 17 Jul. 0.0404 0.0363 0.0384