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
10:01-11:00, Sun., 06 Jul. 0.0414 0.0367 0.0393
09:01-10:00, Sun., 06 Jul. 0.0409 0.0367 0.0393
08:01-09:00, Sun., 06 Jul. 0.0419 0.0374 0.0395
07:01-08:00, Sun., 06 Jul. 0.0433 0.0374 0.0401
06:01-07:00, Sun., 06 Jul. 0.0430 0.0386 0.0406
05:01-06:00, Sun., 06 Jul. 0.0429 0.0382 0.0405
04:01-05:00, Sun., 06 Jul. 0.0423 0.0388 0.0405
03:01-04:00, Sun., 06 Jul. 0.0431 0.0374 0.0403
02:01-03:00, Sun., 06 Jul. 0.0423 0.0366 0.0398
01:01-02:00, Sun., 06 Jul. 0.0418 0.0370 0.0397
00:01-01:00, Sun., 06 Jul. 0.0416 0.0375 0.0397
23:01-24:00, Sat., 05 Jul. 0.0428 0.0381 0.0401
22:01-23:00, Sat., 05 Jul. 0.0432 0.0388 0.0409
21:01-22:00, Sat., 05 Jul. 0.0437 0.0379 0.0407
20:01-21:00, Sat., 05 Jul. 0.0423 0.0364 0.0397
19:01-20:00, Sat., 05 Jul. 0.0426 0.0356 0.0397
18:01-19:00, Sat., 05 Jul. 0.0422 0.0368 0.0396
17:01-18:00, Sat., 05 Jul. 0.0415 0.0376 0.0395
16:01-17:00, Sat., 05 Jul. 0.0417 0.0374 0.0396
15:01-16:00, Sat., 05 Jul. 0.0416 0.0371 0.0394
14:01-15:00, Sat., 05 Jul. 0.0436 0.0371 0.0401
13:01-14:00, Sat., 05 Jul. 0.0426 0.0377 0.0407
12:01-13:00, Sat., 05 Jul. 0.0425 0.0379 0.0401
11:01-12:00, Sat., 05 Jul. 0.0421 0.0377 0.0398
10:01-11:00, Sat., 05 Jul. 0.0417 0.0374 0.0394
09:01-10:00, Sat., 05 Jul. 0.0419 0.0369 0.0395
08:01-09:00, Sat., 05 Jul. 0.0428 0.0375 0.0398
07:01-08:00, Sat., 05 Jul. 0.0414 0.0374 0.0392
06:01-07:00, Sat., 05 Jul. 0.0419 0.0374 0.0396
05:01-06:00, Sat., 05 Jul. 0.0413 0.0367 0.0392
04:01-05:00, Sat., 05 Jul. 0.0409 0.0368 0.0390
03:01-04:00, Sat., 05 Jul. 0.0417 0.0369 0.0392
02:01-03:00, Sat., 05 Jul. 0.0409 0.0366 0.0391
01:01-02:00, Sat., 05 Jul. 0.0412 0.0361 0.0388
00:01-01:00, Sat., 05 Jul. 0.0417 0.0373 0.0393
23:01-24:00, Fri., 04 Jul. 0.0416 0.0368 0.0391
22:01-23:00, Fri., 04 Jul. 0.0411 0.0367 0.0390
21:01-22:00, Fri., 04 Jul. 0.0410 0.0361 0.0387
20:01-21:00, Fri., 04 Jul. 0.0412 0.0363 0.0383
19:01-20:00, Fri., 04 Jul. 0.0419 0.0361 0.0391
18:01-19:00, Fri., 04 Jul. 0.0426 0.0359 0.0389
17:01-18:00, Fri., 04 Jul. 0.0409 0.0365 0.0388
16:01-17:00, Fri., 04 Jul. 0.0433 0.0368 0.0391
15:01-16:00, Fri., 04 Jul. 0.0417 0.0377 0.0396
14:01-15:00, Fri., 04 Jul. 0.0419 0.0366 0.0388
13:01-14:00, Fri., 04 Jul. 0.0420 0.0356 0.0386
12:01-13:00, Fri., 04 Jul. 0.0418 0.0370 0.0390
11:01-12:00, Fri., 04 Jul. 0.0407 0.0356 0.0381
10:01-11:00, Fri., 04 Jul. 0.0407 0.0364 0.0386
09:01-10:00, Fri., 04 Jul. 0.0415 0.0359 0.0388
08:01-09:00, Fri., 04 Jul. 0.0409 0.0364 0.0384
07:01-08:00, Fri., 04 Jul. 0.0409 0.0360 0.0387
06:01-07:00, Fri., 04 Jul. 0.0418 0.0369 0.0388
05:01-06:00, Fri., 04 Jul. 0.0409 0.0356 0.0389
04:01-05:00, Fri., 04 Jul. 0.0418 0.0363 0.0390
03:01-04:00, Fri., 04 Jul. 0.0406 0.0366 0.0386
02:01-03:00, Fri., 04 Jul. 0.0405 0.0372 0.0389
01:01-02:00, Fri., 04 Jul. 0.0410 0.0369 0.0388
00:01-01:00, Fri., 04 Jul. 0.0404 0.0365 0.0385
23:01-24:00, Thu., 03 Jul. 0.0416 0.0368 0.0387
22:01-23:00, Thu., 03 Jul. 0.0410 0.0370 0.0388
21:01-22:00, Thu., 03 Jul. 0.0404 0.0368 0.0386
20:01-21:00, Thu., 03 Jul. 0.0415 0.0367 0.0384
19:01-20:00, Thu., 03 Jul. 0.0417 0.0363 0.0388
18:01-19:00, Thu., 03 Jul. 0.0403 0.0368 0.0387
17:01-18:00, Thu., 03 Jul. 0.0407 0.0353 0.0388
16:01-17:00, Thu., 03 Jul. 0.0412 0.0364 0.0390
15:01-16:00, Thu., 03 Jul. 0.0409 0.0367 0.0388
14:01-15:00, Thu., 03 Jul. 0.0408 0.0361 0.0387
13:01-14:00, Thu., 03 Jul. 0.0411 0.0364 0.0388
12:01-13:00, Thu., 03 Jul. 0.0406 0.0364 0.0386
11:01-12:00, Thu., 03 Jul. 0.0406 0.0367 0.0385
10:01-11:00, Thu., 03 Jul. 0.0400 0.0363 0.0385
09:01-10:00, Thu., 03 Jul. 0.0412 0.0359 0.0386
08:01-09:00, Thu., 03 Jul. 0.0405 0.0360 0.0384
07:01-08:00, Thu., 03 Jul. 0.0408 0.0367 0.0387
06:01-07:00, Thu., 03 Jul. 0.0413 0.0353 0.0385
05:01-06:00, Thu., 03 Jul. 0.0413 0.0364 0.0386
04:01-05:00, Thu., 03 Jul. 0.0406 0.0359 0.0384
03:01-04:00, Thu., 03 Jul. 0.0413 0.0367 0.0387
02:01-03:00, Thu., 03 Jul. 0.0401 0.0366 0.0384
01:01-02:00, Thu., 03 Jul. 0.0404 0.0367 0.0386
00:01-01:00, Thu., 03 Jul. 0.0405 0.0364 0.0384
23:01-24:00, Wed., 02 Jul. 0.0409 0.0357 0.0383
22:01-23:00, Wed., 02 Jul. 0.0415 0.0362 0.0382
21:01-22:00, Wed., 02 Jul. 0.0403 0.0363 0.0385
20:01-21:00, Wed., 02 Jul. 0.0402 0.0366 0.0385
19:01-20:00, Wed., 02 Jul. 0.0405 0.0366 0.0384
18:01-19:00, Wed., 02 Jul. 0.0412 0.0369 0.0387
17:01-18:00, Wed., 02 Jul. 0.0412 0.0361 0.0384
16:01-17:00, Wed., 02 Jul. 0.0409 0.0370 0.0387
15:01-16:00, Wed., 02 Jul. 0.0415 0.0363 0.0388
14:01-15:00, Wed., 02 Jul. 0.0413 0.0372 0.0387
13:01-14:00, Wed., 02 Jul. 0.0414 0.0352 0.0387
12:01-13:00, Wed., 02 Jul. 0.0407 0.0367 0.0388
11:01-12:00, Wed., 02 Jul. 0.0412 0.0363 0.0385
10:01-11:00, Wed., 02 Jul. 0.0410 0.0356 0.0387
09:01-10:00, Wed., 02 Jul. 0.0409 0.0363 0.0385
08:01-09:00, Wed., 02 Jul. 0.0402 0.0363 0.0384
07:01-08:00, Wed., 02 Jul. 0.0406 0.0363 0.0384
06:01-07:00, Wed., 02 Jul. 0.0415 0.0353 0.0384
05:01-06:00, Wed., 02 Jul. 0.0413 0.0363 0.0388
04:01-05:00, Wed., 02 Jul. 0.0409 0.0367 0.0385
03:01-04:00, Wed., 02 Jul. 0.0401 0.0366 0.0386
02:01-03:00, Wed., 02 Jul. 0.0413 0.0362 0.0386
01:01-02:00, Wed., 02 Jul. 0.0400 0.0367 0.0383
00:01-01:00, Wed., 02 Jul. 0.0416 0.0360 0.0386
23:01-24:00, Tue., 01 Jul. 0.0416 0.0370 0.0388
22:01-23:00, Tue., 01 Jul. 0.0416 0.0375 0.0394
21:01-22:00, Tue., 01 Jul. 0.0471 0.0392 0.0427
20:01-21:00, Tue., 01 Jul. 0.0526 0.0442 0.0487
19:01-20:00, Tue., 01 Jul. 0.0499 0.0377 0.0435
18:01-19:00, Tue., 01 Jul. 0.0409 0.0366 0.0388
17:01-18:00, Tue., 01 Jul. 0.0405 0.0363 0.0383
16:01-17:00, Tue., 01 Jul. 0.0409 0.0361 0.0386
15:01-16:00, Tue., 01 Jul. 0.0417 0.0363 0.0387
14:01-15:00, Tue., 01 Jul. 0.0416 0.0363 0.0387
13:01-14:00, Tue., 01 Jul. 0.0419 0.0367 0.0386
12:01-13:00, Tue., 01 Jul. 0.0412 0.0360 0.0386
11:01-12:00, Tue., 01 Jul. 0.0410 0.0363 0.0386
10:01-11:00, Tue., 01 Jul. 0.0412 0.0358 0.0386
09:01-10:00, Tue., 01 Jul. 0.0406 0.0358 0.0387
08:01-09:00, Tue., 01 Jul. 0.0401 0.0357 0.0381
07:01-08:00, Tue., 01 Jul. 0.0414 0.0363 0.0383
06:01-07:00, Tue., 01 Jul. 0.0410 0.0363 0.0383
05:01-06:00, Tue., 01 Jul. 0.0409 0.0361 0.0382
04:01-05:00, Tue., 01 Jul. 0.0409 0.0361 0.0384
03:01-04:00, Tue., 01 Jul. 0.0405 0.0353 0.0384
02:01-03:00, Tue., 01 Jul. 0.0402 0.0366 0.0384
01:01-02:00, Tue., 01 Jul. 0.0407 0.0365 0.0385
00:01-01:00, Tue., 01 Jul. 0.0406 0.0364 0.0385
23:01-24:00, Mon., 30 Jun. 0.0404 0.0363 0.0383
22:01-23:00, Mon., 30 Jun. 0.0405 0.0353 0.0383
21:01-22:00, Mon., 30 Jun. 0.0409 0.0365 0.0386
20:01-21:00, Mon., 30 Jun. 0.0398 0.0360 0.0381
19:01-20:00, Mon., 30 Jun. 0.0402 0.0365 0.0383
18:01-19:00, Mon., 30 Jun. 0.0405 0.0359 0.0385
17:01-18:00, Mon., 30 Jun. 0.0407 0.0365 0.0384
16:01-17:00, Mon., 30 Jun. 0.0405 0.0358 0.0384
15:01-16:00, Mon., 30 Jun. 0.0409 0.0366 0.0388
14:01-15:00, Mon., 30 Jun. 0.0405 0.0363 0.0386
13:01-14:00, Mon., 30 Jun. 0.0412 0.0362 0.0387
12:01-13:00, Mon., 30 Jun. 0.0409 0.0363 0.0386
11:01-12:00, Mon., 30 Jun. 0.0408 0.0356 0.0382
10:01-11:00, Mon., 30 Jun. 0.0407 0.0361 0.0385
09:01-10:00, Mon., 30 Jun. 0.0408 0.0366 0.0384
08:01-09:00, Mon., 30 Jun. 0.0407 0.0363 0.0383
07:01-08:00, Mon., 30 Jun. 0.0405 0.0350 0.0384
06:01-07:00, Mon., 30 Jun. 0.0417 0.0363 0.0385
05:01-06:00, Mon., 30 Jun. 0.0409 0.0363 0.0385
04:01-05:00, Mon., 30 Jun. 0.0411 0.0363 0.0383
03:01-04:00, Mon., 30 Jun. 0.0406 0.0349 0.0382
02:01-03:00, Mon., 30 Jun. 0.0412 0.0356 0.0383
01:01-02:00, Mon., 30 Jun. 0.0411 0.0363 0.0383
00:01-01:00, Mon., 30 Jun. 0.0407 0.0361 0.0382
23:01-24:00, Sun., 29 Jun. 0.0402 0.0365 0.0385
22:01-23:00, Sun., 29 Jun. 0.0401 0.0363 0.0382
21:01-22:00, Sun., 29 Jun. 0.0402 0.0360 0.0381
20:01-21:00, Sun., 29 Jun. 0.0408 0.0353 0.0383
19:01-20:00, Sun., 29 Jun. 0.0413 0.0361 0.0381
18:01-19:00, Sun., 29 Jun. 0.0398 0.0349 0.0379
17:01-18:00, Sun., 29 Jun. 0.0405 0.0363 0.0384
16:01-17:00, Sun., 29 Jun. 0.0411 0.0351 0.0382
15:01-16:00, Sun., 29 Jun. 0.0405 0.0359 0.0383
14:01-15:00, Sun., 29 Jun. 0.0402 0.0356 0.0384
13:01-14:00, Sun., 29 Jun. 0.0402 0.0360 0.0381
12:01-13:00, Sun., 29 Jun. 0.0409 0.0365 0.0383
11:01-12:00, Sun., 29 Jun. 0.0409 0.0351 0.0382
10:01-11:00, Sun., 29 Jun. 0.0415 0.0348 0.0380
09:01-10:00, Sun., 29 Jun. 0.0402 0.0360 0.0383
08:01-09:00, Sun., 29 Jun. 0.0405 0.0362 0.0381
07:01-08:00, Sun., 29 Jun. 0.0407 0.0357 0.0385
06:01-07:00, Sun., 29 Jun. 0.0405 0.0350 0.0382
05:01-06:00, Sun., 29 Jun. 0.0400 0.0360 0.0380
04:01-05:00, Sun., 29 Jun. 0.0405 0.0359 0.0382
03:01-04:00, Sun., 29 Jun. 0.0401 0.0354 0.0380
02:01-03:00, Sun., 29 Jun. 0.0405 0.0359 0.0382
01:01-02:00, Sun., 29 Jun. 0.0416 0.0360 0.0382
00:01-01:00, Sun., 29 Jun. 0.0410 0.0360 0.0383
23:01-24:00, Sat., 28 Jun. 0.0405 0.0366 0.0384
22:01-23:00, Sat., 28 Jun. 0.0402 0.0349 0.0380
21:01-22:00, Sat., 28 Jun. 0.0398 0.0346 0.0379
20:01-21:00, Sat., 28 Jun. 0.0417 0.0360 0.0379
19:01-20:00, Sat., 28 Jun. 0.0406 0.0360 0.0383
18:01-19:00, Sat., 28 Jun. 0.0403 0.0359 0.0380
17:01-18:00, Sat., 28 Jun. 0.0402 0.0362 0.0380
16:01-17:00, Sat., 28 Jun. 0.0404 0.0364 0.0382
15:01-16:00, Sat., 28 Jun. 0.0402 0.0360 0.0381
14:01-15:00, Sat., 28 Jun. 0.0407 0.0353 0.0378
13:01-14:00, Sat., 28 Jun. 0.0401 0.0343 0.0373
12:01-13:00, Sat., 28 Jun. 0.0400 0.0352 0.0378
11:01-12:00, Sat., 28 Jun. 0.0402 0.0356 0.0380
10:01-11:00, Sat., 28 Jun. 0.0396 0.0356 0.0379
09:01-10:00, Sat., 28 Jun. 0.0405 0.0347 0.0381
08:01-09:00, Sat., 28 Jun. 0.0399 0.0359 0.0380
07:01-08:00, Sat., 28 Jun. 0.0414 0.0354 0.0385
06:01-07:00, Sat., 28 Jun. 0.0405 0.0361 0.0382
05:01-06:00, Sat., 28 Jun. 0.0405 0.0353 0.0381
04:01-05:00, Sat., 28 Jun. 0.0398 0.0346 0.0377
03:01-04:00, Sat., 28 Jun. 0.0400 0.0360 0.0379
02:01-03:00, Sat., 28 Jun. 0.0403 0.0355 0.0374
01:01-02:00, Sat., 28 Jun. 0.0397 0.0351 0.0375
00:01-01:00, Sat., 28 Jun. 0.0396 0.0351 0.0374
23:01-24:00, Fri., 27 Jun. 0.0399 0.0349 0.0374
22:01-23:00, Fri., 27 Jun. 0.0395 0.0354 0.0374
21:01-22:00, Fri., 27 Jun. 0.0399 0.0357 0.0376
20:01-21:00, Fri., 27 Jun. 0.0402 0.0356 0.0377
19:01-20:00, Fri., 27 Jun. 0.0409 0.0364 0.0384
18:01-19:00, Fri., 27 Jun. 0.0409 0.0352 0.0379
17:01-18:00, Fri., 27 Jun. 0.0402 0.0356 0.0383
16:01-17:00, Fri., 27 Jun. 0.0415 0.0360 0.0387
15:01-16:00, Fri., 27 Jun. 0.0395 0.0358 0.0378
14:01-15:00, Fri., 27 Jun. 0.0393 0.0353 0.0375
13:01-14:00, Fri., 27 Jun. 0.0400 0.0331 0.0368
12:01-13:00, Fri., 27 Jun. 0.0374 0.0333 0.0354
11:01-12:00, Fri., 27 Jun. 0.0398 0.0342 0.0374
10:01-11:00, Fri., 27 Jun. 0.0404 0.0360 0.0379
09:01-10:00, Fri., 27 Jun. 0.0400 0.0355 0.0375
08:01-09:00, Fri., 27 Jun. 0.0401 0.0321 0.0353
07:01-08:00, Fri., 27 Jun. 0.0398 0.0330 0.0371
06:01-07:00, Fri., 27 Jun. 0.0395 0.0346 0.0373
05:01-06:00, Fri., 27 Jun. 0.0396 0.0355 0.0373
04:01-05:00, Fri., 27 Jun. 0.0395 0.0356 0.0372
03:01-04:00, Fri., 27 Jun. 0.0387 0.0338 0.0365
02:01-03:00, Fri., 27 Jun. 0.0398 0.0348 0.0369
01:01-02:00, Fri., 27 Jun. 0.0391 0.0343 0.0370
00:01-01:00, Fri., 27 Jun. 0.0419 0.0360 0.0388
23:01-24:00, Thu., 26 Jun. 0.0499 0.0406 0.0444
22:01-23:00, Thu., 26 Jun. 0.0484 0.0377 0.0426
21:01-22:00, Thu., 26 Jun. 0.0447 0.0375 0.0417
20:01-21:00, Thu., 26 Jun. 0.0469 0.0406 0.0438
19:01-20:00, Thu., 26 Jun. 0.0462 0.0359 0.0409
18:01-19:00, Thu., 26 Jun. 0.0390 0.0349 0.0371
17:01-18:00, Thu., 26 Jun. 0.0396 0.0347 0.0368
16:01-17:00, Thu., 26 Jun. 0.0391 0.0336 0.0361
15:01-16:00, Thu., 26 Jun. 0.0391 0.0342 0.0365
14:01-15:00, Thu., 26 Jun. 0.0386 0.0343 0.0364
13:01-14:00, Thu., 26 Jun. 0.0390 0.0329 0.0364
12:01-13:00, Thu., 26 Jun. 0.0373 0.0324 0.0348
11:01-12:00, Thu., 26 Jun. 0.0391 0.0340 0.0363