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
04:01-05:00, Sun., 27 Jul. 0.0420 0.0363 0.0394
03:01-04:00, Sun., 27 Jul. 0.0413 0.0367 0.0394
02:01-03:00, Sun., 27 Jul. 0.0416 0.0377 0.0394
01:01-02:00, Sun., 27 Jul. 0.0418 0.0369 0.0393
00:01-01:00, Sun., 27 Jul. 0.0419 0.0369 0.0393
23:01-24:00, Sat., 26 Jul. 0.0417 0.0370 0.0396
22:01-23:00, Sat., 26 Jul. 0.0413 0.0374 0.0394
21:01-22:00, Sat., 26 Jul. 0.0416 0.0359 0.0393
20:01-21:00, Sat., 26 Jul. 0.0410 0.0367 0.0392
19:01-20:00, Sat., 26 Jul. 0.0419 0.0370 0.0396
18:01-19:00, Sat., 26 Jul. 0.0412 0.0372 0.0393
17:01-18:00, Sat., 26 Jul. 0.0416 0.0368 0.0394
16:01-17:00, Sat., 26 Jul. 0.0412 0.0369 0.0391
15:01-16:00, Sat., 26 Jul. 0.0409 0.0362 0.0392
14:01-15:00, Sat., 26 Jul. 0.0416 0.0367 0.0393
13:01-14:00, Sat., 26 Jul. 0.0409 0.0368 0.0390
12:01-13:00, Sat., 26 Jul. 0.0427 0.0368 0.0394
11:01-12:00, Sat., 26 Jul. 0.0417 0.0372 0.0390
10:01-11:00, Sat., 26 Jul. 0.0407 0.0360 0.0388
09:01-10:00, Sat., 26 Jul. 0.0405 0.0364 0.0386
08:01-09:00, Sat., 26 Jul. 0.0419 0.0373 0.0394
07:01-08:00, Sat., 26 Jul. 0.0416 0.0375 0.0395
06:01-07:00, Sat., 26 Jul. 0.0424 0.0367 0.0397
05:01-06:00, Sat., 26 Jul. 0.0416 0.0369 0.0392
04:01-05:00, Sat., 26 Jul. 0.0409 0.0369 0.0391
03:01-04:00, Sat., 26 Jul. 0.0419 0.0375 0.0393
02:01-03:00, Sat., 26 Jul. 0.0421 0.0378 0.0394
01:01-02:00, Sat., 26 Jul. 0.0408 0.0370 0.0393
00:01-01:00, Sat., 26 Jul. 0.0429 0.0376 0.0393
23:01-24:00, Fri., 25 Jul. 0.0415 0.0373 0.0392
22:01-23:00, Fri., 25 Jul. 0.0415 0.0365 0.0395
21:01-22:00, Fri., 25 Jul. 0.0413 0.0377 0.0396
20:01-21:00, Fri., 25 Jul. 0.0419 0.0373 0.0394
19:01-20:00, Fri., 25 Jul. 0.0426 0.0375 0.0395
18:01-19:00, Fri., 25 Jul. 0.0417 0.0374 0.0394
17:01-18:00, Fri., 25 Jul. 0.0416 0.0366 0.0394
16:01-17:00, Fri., 25 Jul. 0.0412 0.0379 0.0395
15:01-16:00, Fri., 25 Jul. 0.0415 0.0364 0.0391
14:01-15:00, Fri., 25 Jul. 0.0416 0.0367 0.0390
13:01-14:00, Fri., 25 Jul. 0.0409 0.0373 0.0389
12:01-13:00, Fri., 25 Jul. 0.0419 0.0378 0.0398
11:01-12:00, Fri., 25 Jul. 0.0420 0.0363 0.0395
10:01-11:00, Fri., 25 Jul. 0.0412 0.0367 0.0389
09:01-10:00, Fri., 25 Jul. 0.0418 0.0377 0.0391
08:01-09:00, Fri., 25 Jul. 0.0421 0.0372 0.0398
07:01-08:00, Fri., 25 Jul. 0.0426 0.0379 0.0398
06:01-07:00, Fri., 25 Jul. 0.0415 0.0376 0.0394
05:01-06:00, Fri., 25 Jul. 0.0418 0.0364 0.0391
04:01-05:00, Fri., 25 Jul. 0.0416 0.0364 0.0394
03:01-04:00, Fri., 25 Jul. 0.0410 0.0374 0.0392
02:01-03:00, Fri., 25 Jul. 0.0412 0.0374 0.0391
01:01-02:00, Fri., 25 Jul. 0.0412 0.0364 0.0391
00:01-01:00, Fri., 25 Jul. 0.0419 0.0371 0.0391
23:01-24:00, Thu., 24 Jul. 0.0426 0.0367 0.0393
22:01-23:00, Thu., 24 Jul. 0.0414 0.0369 0.0393
21:01-22:00, Thu., 24 Jul. 0.0416 0.0374 0.0395
20:01-21:00, Thu., 24 Jul. 0.0415 0.0367 0.0395
19:01-20:00, Thu., 24 Jul. 0.0423 0.0367 0.0394
18:01-19:00, Thu., 24 Jul. 0.0414 0.0375 0.0392
17:01-18:00, Thu., 24 Jul. 0.0414 0.0371 0.0391
16:01-17:00, Thu., 24 Jul. 0.0419 0.0377 0.0393
15:01-16:00, Thu., 24 Jul. 0.0423 0.0366 0.0394
14:01-15:00, Thu., 24 Jul. 0.0415 0.0366 0.0391
13:01-14:00, Thu., 24 Jul. 0.0419 0.0373 0.0399
12:01-13:00, Thu., 24 Jul. 0.0436 0.0377 0.0398
11:01-12:00, Thu., 24 Jul. 0.0425 0.0377 0.0397
10:01-11:00, Thu., 24 Jul. 0.0427 0.0370 0.0398
09:01-10:00, Thu., 24 Jul. 0.0418 0.0373 0.0393
08:01-09:00, Thu., 24 Jul. 0.0419 0.0376 0.0395
07:01-08:00, Thu., 24 Jul. 0.0413 0.0370 0.0392
06:01-07:00, Thu., 24 Jul. 0.0414 0.0363 0.0392
05:01-06:00, Thu., 24 Jul. 0.0410 0.0372 0.0390
04:01-05:00, Thu., 24 Jul. 0.0413 0.0368 0.0391
03:01-04:00, Thu., 24 Jul. 0.0416 0.0368 0.0390
02:01-03:00, Thu., 24 Jul. 0.0408 0.0374 0.0390
01:01-02:00, Thu., 24 Jul. 0.0412 0.0362 0.0387
00:01-01:00, Thu., 24 Jul. 0.0409 0.0367 0.0389
23:01-24:00, Wed., 23 Jul. 0.0406 0.0369 0.0390
22:01-23:00, Wed., 23 Jul. 0.0409 0.0361 0.0387
21:01-22:00, Wed., 23 Jul. 0.0410 0.0362 0.0389
20:01-21:00, Wed., 23 Jul. 0.0416 0.0369 0.0390
19:01-20:00, Wed., 23 Jul. 0.0420 0.0365 0.0391
18:01-19:00, Wed., 23 Jul. 0.0419 0.0364 0.0389
17:01-18:00, Wed., 23 Jul. 0.0419 0.0366 0.0390
16:01-17:00, Wed., 23 Jul. 0.0423 0.0365 0.0391
15:01-16:00, Wed., 23 Jul. 0.0416 0.0368 0.0393
14:01-15:00, Wed., 23 Jul. 0.0417 0.0363 0.0388
13:01-14:00, Wed., 23 Jul. 0.0412 0.0372 0.0388
12:01-13:00, Wed., 23 Jul. 0.0414 0.0368 0.0393
11:01-12:00, Wed., 23 Jul. 0.0413 0.0371 0.0390
10:01-11:00, Wed., 23 Jul. 0.0405 0.0363 0.0385
09:01-10:00, Wed., 23 Jul. 0.0423 0.0367 0.0392
08:01-09:00, Wed., 23 Jul. 0.0424 0.0356 0.0390
07:01-08:00, Wed., 23 Jul. 0.0408 0.0362 0.0391
06:01-07:00, Wed., 23 Jul. 0.0405 0.0366 0.0387
05:01-06:00, Wed., 23 Jul. 0.0423 0.0368 0.0391
04:01-05:00, Wed., 23 Jul. 0.0415 0.0363 0.0389
03:01-04:00, Wed., 23 Jul. 0.0412 0.0370 0.0387
02:01-03:00, Wed., 23 Jul. 0.0426 0.0367 0.0390
01:01-02:00, Wed., 23 Jul. 0.0405 0.0353 0.0386
00:01-01:00, Wed., 23 Jul. 0.0403 0.0363 0.0386
23:01-24:00, Tue., 22 Jul. 0.0408 0.0359 0.0386
22:01-23:00, Tue., 22 Jul. 0.0409 0.0367 0.0386
21:01-22:00, Tue., 22 Jul. 0.0409 0.0366 0.0387
20:01-21:00, Tue., 22 Jul. 0.0412 0.0360 0.0386
19:01-20:00, Tue., 22 Jul. 0.0406 0.0370 0.0388
18:01-19:00, Tue., 22 Jul. 0.0415 0.0359 0.0385
17:01-18:00, Tue., 22 Jul. 0.0409 0.0367 0.0390
16:01-17:00, Tue., 22 Jul. 0.0415 0.0366 0.0389
15:01-16:00, Tue., 22 Jul. 0.0412 0.0371 0.0390
14:01-15:00, Tue., 22 Jul. 0.0407 0.0364 0.0387
13:01-14:00, Tue., 22 Jul. 0.0404 0.0367 0.0383
12:01-13:00, Tue., 22 Jul. 0.0412 0.0355 0.0385
11:01-12:00, Tue., 22 Jul. 0.0409 0.0360 0.0386
10:01-11:00, Tue., 22 Jul. 0.0399 0.0349 0.0379
09:01-10:00, Tue., 22 Jul. 0.0402 0.0355 0.0379
08:01-09:00, Tue., 22 Jul. 0.0405 0.0367 0.0384
07:01-08:00, Tue., 22 Jul. 0.0406 0.0353 0.0386
06:01-07:00, Tue., 22 Jul. 0.0407 0.0361 0.0386
05:01-06:00, Tue., 22 Jul. 0.0409 0.0367 0.0386
04:01-05:00, Tue., 22 Jul. 0.0403 0.0365 0.0386
03:01-04:00, Tue., 22 Jul. 0.0401 0.0362 0.0385
02:01-03:00, Tue., 22 Jul. 0.0405 0.0361 0.0383
01:01-02:00, Tue., 22 Jul. 0.0416 0.0367 0.0386
00:01-01:00, Tue., 22 Jul. 0.0412 0.0363 0.0387
23:01-24:00, Mon., 21 Jul. 0.0405 0.0367 0.0387
22:01-23:00, Mon., 21 Jul. 0.0403 0.0367 0.0384
21:01-22:00, Mon., 21 Jul. 0.0409 0.0364 0.0385
20:01-21:00, Mon., 21 Jul. 0.0410 0.0353 0.0383
19:01-20:00, Mon., 21 Jul. 0.0405 0.0360 0.0385
18:01-19:00, Mon., 21 Jul. 0.0410 0.0360 0.0385
17:01-18:00, Mon., 21 Jul. 0.0408 0.0366 0.0385
16:01-17:00, Mon., 21 Jul. 0.0408 0.0371 0.0386
15:01-16:00, Mon., 21 Jul. 0.0402 0.0363 0.0386
14:01-15:00, Mon., 21 Jul. 0.0416 0.0360 0.0384
13:01-14:00, Mon., 21 Jul. 0.0403 0.0359 0.0384
12:01-13:00, Mon., 21 Jul. 0.0405 0.0372 0.0387
11:01-12:00, Mon., 21 Jul. 0.0400 0.0355 0.0377
10:01-11:00, Mon., 21 Jul. 0.0398 0.0359 0.0377
09:01-10:00, Mon., 21 Jul. 0.0398 0.0355 0.0375
08:01-09:00, Mon., 21 Jul. 0.0404 0.0366 0.0381
07:01-08:00, Mon., 21 Jul. 0.0407 0.0356 0.0385
06:01-07:00, Mon., 21 Jul. 0.0409 0.0363 0.0382
05:01-06:00, Mon., 21 Jul. 0.0407 0.0363 0.0383
04:01-05:00, Mon., 21 Jul. 0.0412 0.0367 0.0386
03:01-04:00, Mon., 21 Jul. 0.0403 0.0359 0.0386
02:01-03:00, Mon., 21 Jul. 0.0409 0.0363 0.0384
01:01-02:00, Mon., 21 Jul. 0.0407 0.0363 0.0383
00:01-01:00, Mon., 21 Jul. 0.0411 0.0356 0.0383
23:01-24:00, Sun., 20 Jul. 0.0405 0.0363 0.0384
22:01-23:00, Sun., 20 Jul. 0.0408 0.0362 0.0384
21:01-22:00, Sun., 20 Jul. 0.0406 0.0363 0.0381
20:01-21:00, Sun., 20 Jul. 0.0406 0.0346 0.0379
19:01-20:00, Sun., 20 Jul. 0.0405 0.0362 0.0383
18:01-19:00, Sun., 20 Jul. 0.0405 0.0359 0.0383
17:01-18:00, Sun., 20 Jul. 0.0402 0.0363 0.0384
16:01-17:00, Sun., 20 Jul. 0.0412 0.0363 0.0384
15:01-16:00, Sun., 20 Jul. 0.0401 0.0357 0.0385
14:01-15:00, Sun., 20 Jul. 0.0399 0.0361 0.0381
13:01-14:00, Sun., 20 Jul. 0.0407 0.0354 0.0380
12:01-13:00, Sun., 20 Jul. 0.0396 0.0349 0.0378
11:01-12:00, Sun., 20 Jul. 0.0402 0.0358 0.0381
10:01-11:00, Sun., 20 Jul. 0.0407 0.0352 0.0380
09:01-10:00, Sun., 20 Jul. 0.0403 0.0354 0.0381
08:01-09:00, Sun., 20 Jul. 0.0402 0.0356 0.0382
07:01-08:00, Sun., 20 Jul. 0.0395 0.0363 0.0380
06:01-07:00, Sun., 20 Jul. 0.0402 0.0363 0.0382
05:01-06:00, Sun., 20 Jul. 0.0406 0.0360 0.0382
04:01-05:00, Sun., 20 Jul. 0.0398 0.0359 0.0381
03:01-04:00, Sun., 20 Jul. 0.0404 0.0356 0.0381
02:01-03:00, Sun., 20 Jul. 0.0405 0.0358 0.0380
01:01-02:00, Sun., 20 Jul. 0.0401 0.0355 0.0381
00:01-01:00, Sun., 20 Jul. 0.0418 0.0360 0.0381
23:01-24:00, Sat., 19 Jul. 0.0403 0.0355 0.0379
22:01-23:00, Sat., 19 Jul. 0.0401 0.0363 0.0382
21:01-22:00, Sat., 19 Jul. 0.0409 0.0348 0.0378
20:01-21:00, Sat., 19 Jul. 0.0404 0.0356 0.0376
19:01-20:00, Sat., 19 Jul. 0.0405 0.0346 0.0376
18:01-19:00, Sat., 19 Jul. 0.0399 0.0352 0.0378
17:01-18:00, Sat., 19 Jul. 0.0400 0.0368 0.0381
16:01-17:00, Sat., 19 Jul. 0.0398 0.0356 0.0380
15:01-16:00, Sat., 19 Jul. 0.0405 0.0359 0.0381
14:01-15:00, Sat., 19 Jul. 0.0408 0.0363 0.0382
13:01-14:00, Sat., 19 Jul. 0.0401 0.0346 0.0370
12:01-13:00, Sat., 19 Jul. 0.0393 0.0341 0.0368
11:01-12:00, Sat., 19 Jul. 0.0392 0.0348 0.0373
10:01-11:00, Sat., 19 Jul. 0.0392 0.0339 0.0371
09:01-10:00, Sat., 19 Jul. 0.0400 0.0356 0.0372
08:01-09:00, Sat., 19 Jul. 0.0397 0.0357 0.0375
07:01-08:00, Sat., 19 Jul. 0.0401 0.0361 0.0377
06:01-07:00, Sat., 19 Jul. 0.0397 0.0355 0.0378
05:01-06:00, Sat., 19 Jul. 0.0405 0.0356 0.0378
04:01-05:00, Sat., 19 Jul. 0.0395 0.0353 0.0377
03:01-04:00, Sat., 19 Jul. 0.0408 0.0349 0.0377
02:01-03:00, Sat., 19 Jul. 0.0407 0.0358 0.0378
01:01-02:00, Sat., 19 Jul. 0.0398 0.0355 0.0375
00:01-01:00, Sat., 19 Jul. 0.0396 0.0355 0.0379
23:01-24:00, Fri., 18 Jul. 0.0398 0.0359 0.0377
22:01-23:00, Fri., 18 Jul. 0.0419 0.0353 0.0377
21:01-22:00, Fri., 18 Jul. 0.0402 0.0346 0.0374
20:01-21:00, Fri., 18 Jul. 0.0411 0.0353 0.0375
19:01-20:00, Fri., 18 Jul. 0.0401 0.0350 0.0375
18:01-19:00, Fri., 18 Jul. 0.0402 0.0359 0.0378
17:01-18:00, Fri., 18 Jul. 0.0391 0.0351 0.0375
16:01-17:00, Fri., 18 Jul. 0.0398 0.0361 0.0377
15:01-16:00, Fri., 18 Jul. 0.0395 0.0360 0.0377
14:01-15:00, Fri., 18 Jul. 0.0402 0.0358 0.0375
13:01-14:00, Fri., 18 Jul. 0.0393 0.0349 0.0374
12:01-13:00, Fri., 18 Jul. 0.0395 0.0349 0.0374
11:01-12:00, Fri., 18 Jul. 0.0395 0.0349 0.0375
10:01-11:00, Fri., 18 Jul. 0.0397 0.0349 0.0371
09:01-10:00, Fri., 18 Jul. 0.0398 0.0346 0.0372
08:01-09:00, Fri., 18 Jul. 0.0393 0.0346 0.0371
07:01-08:00, Fri., 18 Jul. 0.0388 0.0346 0.0370
06:01-07:00, Fri., 18 Jul. 0.0398 0.0349 0.0372
05:01-06:00, Fri., 18 Jul. 0.0398 0.0351 0.0373
04:01-05:00, Fri., 18 Jul. 0.0394 0.0346 0.0372
03:01-04:00, Fri., 18 Jul. 0.0394 0.0350 0.0373
02:01-03:00, Fri., 18 Jul. 0.0392 0.0341 0.0372
01:01-02:00, Fri., 18 Jul. 0.0401 0.0349 0.0373
00:01-01:00, Fri., 18 Jul. 0.0388 0.0346 0.0369
23:01-24:00, Thu., 17 Jul. 0.0393 0.0353 0.0370
22:01-23:00, Thu., 17 Jul. 0.0398 0.0349 0.0372
21:01-22:00, Thu., 17 Jul. 0.0395 0.0347 0.0372
20:01-21:00, Thu., 17 Jul. 0.0400 0.0351 0.0371
19:01-20:00, Thu., 17 Jul. 0.0395 0.0340 0.0368
18:01-19:00, Thu., 17 Jul. 0.0401 0.0352 0.0369
17:01-18:00, Thu., 17 Jul. 0.0391 0.0353 0.0370
16:01-17:00, Thu., 17 Jul. 0.0388 0.0351 0.0369
15:01-16:00, Thu., 17 Jul. 0.0395 0.0349 0.0372
14:01-15:00, Thu., 17 Jul. 0.0396 0.0352 0.0371
13:01-14:00, Thu., 17 Jul. 0.0397 0.0352 0.0372
12:01-13:00, Thu., 17 Jul. 0.0401 0.0347 0.0371
11:01-12:00, Thu., 17 Jul. 0.0392 0.0346 0.0367
10:01-11:00, Thu., 17 Jul. 0.0388 0.0351 0.0370
09:01-10:00, Thu., 17 Jul. 0.0383 0.0348 0.0365
08:01-09:00, Thu., 17 Jul. 0.0394 0.0346 0.0364
07:01-08:00, Thu., 17 Jul. 0.0392 0.0348 0.0367
06:01-07:00, Thu., 17 Jul. 0.0392 0.0343 0.0365
05:01-06:00, Thu., 17 Jul. 0.0395 0.0343 0.0370