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
07:01-08:00, Thu., 13 Jun. 0.0415 0.0359 0.0388
06:01-07:00, Thu., 13 Jun. 0.0405 0.0360 0.0383
05:01-06:00, Thu., 13 Jun. 0.0407 0.0367 0.0387
04:01-05:00, Thu., 13 Jun. 0.0410 0.0363 0.0385
03:01-04:00, Thu., 13 Jun. 0.0409 0.0361 0.0385
02:01-03:00, Thu., 13 Jun. 0.0402 0.0365 0.0384
01:01-02:00, Thu., 13 Jun. 0.0409 0.0353 0.0382
00:01-01:00, Thu., 13 Jun. 0.0409 0.0363 0.0382
23:01-24:00, Wed., 12 Jun. 0.0400 0.0357 0.0381
22:01-23:00, Wed., 12 Jun. 0.0412 0.0360 0.0382
21:01-22:00, Wed., 12 Jun. 0.0410 0.0368 0.0387
20:01-21:00, Wed., 12 Jun. 0.0403 0.0363 0.0384
19:01-20:00, Wed., 12 Jun. 0.0405 0.0362 0.0384
18:01-19:00, Wed., 12 Jun. 0.0405 0.0370 0.0386
17:01-18:00, Wed., 12 Jun. 0.0405 0.0356 0.0383
16:01-17:00, Wed., 12 Jun. 0.0415 0.0359 0.0388
15:01-16:00, Wed., 12 Jun. 0.0410 0.0366 0.0387
14:01-15:00, Wed., 12 Jun. 0.0413 0.0368 0.0387
13:01-14:00, Wed., 12 Jun. 0.0408 0.0360 0.0383
12:01-13:00, Wed., 12 Jun. 0.0406 0.0365 0.0386
11:01-12:00, Wed., 12 Jun. 0.0410 0.0367 0.0387
10:01-11:00, Wed., 12 Jun. 0.0424 0.0363 0.0388
09:01-10:00, Wed., 12 Jun. 0.0412 0.0362 0.0386
08:01-09:00, Wed., 12 Jun. 0.0411 0.0361 0.0387
07:01-08:00, Wed., 12 Jun. 0.0403 0.0363 0.0385
06:01-07:00, Wed., 12 Jun. 0.0404 0.0360 0.0384
05:01-06:00, Wed., 12 Jun. 0.0412 0.0360 0.0383
04:01-05:00, Wed., 12 Jun. 0.0404 0.0363 0.0384
03:01-04:00, Wed., 12 Jun. 0.0397 0.0356 0.0384
02:01-03:00, Wed., 12 Jun. 0.0405 0.0358 0.0383
01:01-02:00, Wed., 12 Jun. 0.0405 0.0363 0.0384
00:01-01:00, Wed., 12 Jun. 0.0408 0.0358 0.0383
23:01-24:00, Tue., 11 Jun. 0.0402 0.0365 0.0385
22:01-23:00, Tue., 11 Jun. 0.0407 0.0361 0.0380
21:01-22:00, Tue., 11 Jun. 0.0411 0.0357 0.0379
20:01-21:00, Tue., 11 Jun. 0.0407 0.0356 0.0381
19:01-20:00, Tue., 11 Jun. 0.0405 0.0357 0.0380
18:01-19:00, Tue., 11 Jun. 0.0402 0.0356 0.0382
17:01-18:00, Tue., 11 Jun. 0.0402 0.0349 0.0381
16:01-17:00, Tue., 11 Jun. 0.0405 0.0365 0.0382
15:01-16:00, Tue., 11 Jun. 0.0405 0.0354 0.0385
14:01-15:00, Tue., 11 Jun. 0.0413 0.0363 0.0386
13:01-14:00, Tue., 11 Jun. 0.0408 0.0365 0.0385
12:01-13:00, Tue., 11 Jun. 0.0409 0.0365 0.0385
11:01-12:00, Tue., 11 Jun. 0.0402 0.0352 0.0381
10:01-11:00, Tue., 11 Jun. 0.0405 0.0357 0.0381
09:01-10:00, Tue., 11 Jun. 0.0405 0.0356 0.0381
08:01-09:00, Tue., 11 Jun. 0.0406 0.0363 0.0383
07:01-08:00, Tue., 11 Jun. 0.0405 0.0355 0.0381
06:01-07:00, Tue., 11 Jun. 0.0402 0.0353 0.0380
05:01-06:00, Tue., 11 Jun. 0.0405 0.0351 0.0376
04:01-05:00, Tue., 11 Jun. 0.0398 0.0362 0.0378
03:01-04:00, Tue., 11 Jun. 0.0400 0.0354 0.0377
02:01-03:00, Tue., 11 Jun. 0.0398 0.0355 0.0379
01:01-02:00, Tue., 11 Jun. 0.0405 0.0359 0.0378
00:01-01:00, Tue., 11 Jun. 0.0402 0.0357 0.0377
23:01-24:00, Mon., 10 Jun. 0.0399 0.0353 0.0377
22:01-23:00, Mon., 10 Jun. 0.0405 0.0353 0.0377
21:01-22:00, Mon., 10 Jun. 0.0398 0.0356 0.0377
20:01-21:00, Mon., 10 Jun. 0.0417 0.0357 0.0378
19:01-20:00, Mon., 10 Jun. 0.0410 0.0357 0.0378
18:01-19:00, Mon., 10 Jun. 0.0402 0.0357 0.0377
17:01-18:00, Mon., 10 Jun. 0.0402 0.0355 0.0378
16:01-17:00, Mon., 10 Jun. 0.0410 0.0346 0.0375
15:01-16:00, Mon., 10 Jun. 0.0406 0.0346 0.0376
14:01-15:00, Mon., 10 Jun. 0.0399 0.0358 0.0378
13:01-14:00, Mon., 10 Jun. 0.0397 0.0360 0.0377
12:01-13:00, Mon., 10 Jun. 0.0398 0.0356 0.0375
11:01-12:00, Mon., 10 Jun. 0.0395 0.0352 0.0376
10:01-11:00, Mon., 10 Jun. 0.0402 0.0356 0.0377
09:01-10:00, Mon., 10 Jun. 0.0398 0.0350 0.0377
08:01-09:00, Mon., 10 Jun. 0.0409 0.0360 0.0378
07:01-08:00, Mon., 10 Jun. 0.0426 0.0375 0.0397
06:01-07:00, Mon., 10 Jun. 0.0482 0.0402 0.0440
05:01-06:00, Mon., 10 Jun. 0.0477 0.0406 0.0441
04:01-05:00, Mon., 10 Jun. 0.0459 0.0406 0.0427
03:01-04:00, Mon., 10 Jun. 0.0458 0.0388 0.0430
02:01-03:00, Mon., 10 Jun. 0.0482 0.0414 0.0447
01:01-02:00, Mon., 10 Jun. 0.0477 0.0431 0.0451
00:01-01:00, Mon., 10 Jun. 0.0456 0.0408 0.0433
23:01-24:00, Sun., 09 Jun. 0.0457 0.0387 0.0415
22:01-23:00, Sun., 09 Jun. 0.0406 0.0359 0.0387
21:01-22:00, Sun., 09 Jun. 0.0408 0.0367 0.0386
20:01-21:00, Sun., 09 Jun. 0.0405 0.0360 0.0383
19:01-20:00, Sun., 09 Jun. 0.0410 0.0370 0.0386
18:01-19:00, Sun., 09 Jun. 0.0406 0.0367 0.0387
17:01-18:00, Sun., 09 Jun. 0.0414 0.0363 0.0385
16:01-17:00, Sun., 09 Jun. 0.0409 0.0354 0.0384
15:01-16:00, Sun., 09 Jun. 0.0405 0.0357 0.0383
14:01-15:00, Sun., 09 Jun. 0.0403 0.0368 0.0383
13:01-14:00, Sun., 09 Jun. 0.0406 0.0356 0.0384
12:01-13:00, Sun., 09 Jun. 0.0409 0.0358 0.0384
11:01-12:00, Sun., 09 Jun. 0.0402 0.0362 0.0385
10:01-11:00, Sun., 09 Jun. 0.0409 0.0365 0.0384
09:01-10:00, Sun., 09 Jun. 0.0406 0.0362 0.0386
08:01-09:00, Sun., 09 Jun. 0.0410 0.0352 0.0381
07:01-08:00, Sun., 09 Jun. 0.0409 0.0363 0.0384
06:01-07:00, Sun., 09 Jun. 0.0407 0.0363 0.0384
05:01-06:00, Sun., 09 Jun. 0.0405 0.0360 0.0385
04:01-05:00, Sun., 09 Jun. 0.0419 0.0362 0.0385
03:01-04:00, Sun., 09 Jun. 0.0412 0.0359 0.0385
02:01-03:00, Sun., 09 Jun. 0.0412 0.0362 0.0386
01:01-02:00, Sun., 09 Jun. 0.0406 0.0361 0.0386
00:01-01:00, Sun., 09 Jun. 0.0403 0.0367 0.0383
23:01-24:00, Sat., 08 Jun. 0.0405 0.0363 0.0382
22:01-23:00, Sat., 08 Jun. 0.0402 0.0363 0.0382
21:01-22:00, Sat., 08 Jun. 0.0405 0.0362 0.0383
20:01-21:00, Sat., 08 Jun. 0.0409 0.0353 0.0382
19:01-20:00, Sat., 08 Jun. 0.0411 0.0366 0.0384
18:01-19:00, Sat., 08 Jun. 0.0407 0.0349 0.0384
17:01-18:00, Sat., 08 Jun. 0.0404 0.0367 0.0387
16:01-17:00, Sat., 08 Jun. 0.0412 0.0368 0.0385
15:01-16:00, Sat., 08 Jun. 0.0407 0.0358 0.0384
14:01-15:00, Sat., 08 Jun. 0.0412 0.0374 0.0389
13:01-14:00, Sat., 08 Jun. 0.0406 0.0362 0.0386
12:01-13:00, Sat., 08 Jun. 0.0402 0.0361 0.0382
11:01-12:00, Sat., 08 Jun. 0.0399 0.0363 0.0383
10:01-11:00, Sat., 08 Jun. 0.0402 0.0349 0.0382
09:01-10:00, Sat., 08 Jun. 0.0410 0.0360 0.0383
08:01-09:00, Sat., 08 Jun. 0.0405 0.0350 0.0382
07:01-08:00, Sat., 08 Jun. 0.0399 0.0360 0.0379
06:01-07:00, Sat., 08 Jun. 0.0399 0.0356 0.0378
05:01-06:00, Sat., 08 Jun. 0.0402 0.0360 0.0380
04:01-05:00, Sat., 08 Jun. 0.0400 0.0358 0.0375
03:01-04:00, Sat., 08 Jun. 0.0398 0.0366 0.0383
02:01-03:00, Sat., 08 Jun. 0.0398 0.0352 0.0376
01:01-02:00, Sat., 08 Jun. 0.0404 0.0355 0.0378
00:01-01:00, Sat., 08 Jun. 0.0401 0.0347 0.0375
23:01-24:00, Fri., 07 Jun. 0.0402 0.0352 0.0374
22:01-23:00, Fri., 07 Jun. 0.0398 0.0356 0.0377
21:01-22:00, Fri., 07 Jun. 0.0401 0.0356 0.0376
20:01-21:00, Fri., 07 Jun. 0.0402 0.0360 0.0380
19:01-20:00, Fri., 07 Jun. 0.0402 0.0355 0.0377
18:01-19:00, Fri., 07 Jun. 0.0402 0.0363 0.0378
17:01-18:00, Fri., 07 Jun. 0.0407 0.0360 0.0381
16:01-17:00, Fri., 07 Jun. 0.0404 0.0364 0.0382
15:01-16:00, Fri., 07 Jun. 0.0410 0.0360 0.0386
14:01-15:00, Fri., 07 Jun. 0.0402 0.0358 0.0383
13:01-14:00, Fri., 07 Jun. 0.0410 0.0353 0.0382
12:01-13:00, Fri., 07 Jun. 0.0399 0.0356 0.0381
11:01-12:00, Fri., 07 Jun. 0.0401 0.0360 0.0381
10:01-11:00, Fri., 07 Jun. 0.0403 0.0355 0.0385
09:01-10:00, Fri., 07 Jun. 0.0408 0.0363 0.0383
08:01-09:00, Fri., 07 Jun. 0.0407 0.0363 0.0386
07:01-08:00, Fri., 07 Jun. 0.0401 0.0367 0.0382
06:01-07:00, Fri., 07 Jun. 0.0403 0.0358 0.0384
05:01-06:00, Fri., 07 Jun. 0.0403 0.0362 0.0381
04:01-05:00, Fri., 07 Jun. 0.0403 0.0356 0.0381
03:01-04:00, Fri., 07 Jun. 0.0401 0.0363 0.0382
02:01-03:00, Fri., 07 Jun. 0.0406 0.0360 0.0381
01:01-02:00, Fri., 07 Jun. 0.0403 0.0366 0.0382
00:01-01:00, Fri., 07 Jun. 0.0403 0.0355 0.0380
23:01-24:00, Thu., 06 Jun. 0.0400 0.0363 0.0381
22:01-23:00, Thu., 06 Jun. 0.0398 0.0362 0.0381
21:01-22:00, Thu., 06 Jun. 0.0408 0.0356 0.0380
20:01-21:00, Thu., 06 Jun. 0.0398 0.0356 0.0380
19:01-20:00, Thu., 06 Jun. 0.0401 0.0361 0.0380
18:01-19:00, Thu., 06 Jun. 0.0398 0.0349 0.0377
17:01-18:00, Thu., 06 Jun. 0.0407 0.0359 0.0381
16:01-17:00, Thu., 06 Jun. 0.0402 0.0363 0.0378
15:01-16:00, Thu., 06 Jun. 0.0412 0.0356 0.0383
14:01-15:00, Thu., 06 Jun. 0.0409 0.0341 0.0384
13:01-14:00, Thu., 06 Jun. 0.0433 0.0392 0.0413
12:01-13:00, Thu., 06 Jun. 0.0439 0.0383 0.0407
11:01-12:00, Thu., 06 Jun. 0.0431 0.0391 0.0406
10:01-11:00, Thu., 06 Jun. 0.0429 0.0384 0.0406
09:01-10:00, Thu., 06 Jun. 0.0431 0.0385 0.0403
08:01-09:00, Thu., 06 Jun. 0.0423 0.0366 0.0400
07:01-08:00, Thu., 06 Jun. 0.0429 0.0381 0.0402
06:01-07:00, Thu., 06 Jun. 0.0423 0.0380 0.0402
05:01-06:00, Thu., 06 Jun. 0.0426 0.0381 0.0399
04:01-05:00, Thu., 06 Jun. 0.0423 0.0374 0.0397
03:01-04:00, Thu., 06 Jun. 0.0423 0.0373 0.0393
02:01-03:00, Thu., 06 Jun. 0.0419 0.0375 0.0396
01:01-02:00, Thu., 06 Jun. 0.0419 0.0377 0.0392
00:01-01:00, Thu., 06 Jun. 0.0430 0.0377 0.0397
23:01-24:00, Wed., 05 Jun. 0.0427 0.0369 0.0398
22:01-23:00, Wed., 05 Jun. 0.0423 0.0368 0.0398
21:01-22:00, Wed., 05 Jun. 0.0423 0.0378 0.0396
20:01-21:00, Wed., 05 Jun. 0.0419 0.0370 0.0395
19:01-20:00, Wed., 05 Jun. 0.0417 0.0381 0.0398
18:01-19:00, Wed., 05 Jun. 0.0420 0.0371 0.0398
17:01-18:00, Wed., 05 Jun. 0.0423 0.0368 0.0400
16:01-17:00, Wed., 05 Jun. 0.0429 0.0370 0.0400
15:01-16:00, Wed., 05 Jun. 0.0427 0.0367 0.0400
14:01-15:00, Wed., 05 Jun. 0.0425 0.0379 0.0401
13:01-14:00, Wed., 05 Jun. 0.0425 0.0375 0.0400
12:01-13:00, Wed., 05 Jun. 0.0426 0.0379 0.0404
11:01-12:00, Wed., 05 Jun. 0.0436 0.0381 0.0406
10:01-11:00, Wed., 05 Jun. 0.0425 0.0372 0.0401
09:01-10:00, Wed., 05 Jun. 0.0419 0.0374 0.0399
08:01-09:00, Wed., 05 Jun. 0.0418 0.0378 0.0400
07:01-08:00, Wed., 05 Jun. 0.0421 0.0376 0.0394
06:01-07:00, Wed., 05 Jun. 0.0414 0.0363 0.0393
05:01-06:00, Wed., 05 Jun. 0.0414 0.0369 0.0389
04:01-05:00, Wed., 05 Jun. 0.0411 0.0374 0.0392
03:01-04:00, Wed., 05 Jun. 0.0409 0.0373 0.0394
02:01-03:00, Wed., 05 Jun. 0.0411 0.0367 0.0393
01:01-02:00, Wed., 05 Jun. 0.0422 0.0368 0.0393
00:01-01:00, Wed., 05 Jun. 0.0416 0.0365 0.0390
23:01-24:00, Tue., 04 Jun. 0.0412 0.0373 0.0391
22:01-23:00, Tue., 04 Jun. 0.0414 0.0363 0.0389
21:01-22:00, Tue., 04 Jun. 0.0415 0.0363 0.0389
20:01-21:00, Tue., 04 Jun. 0.0419 0.0365 0.0390
19:01-20:00, Tue., 04 Jun. 0.0409 0.0360 0.0388
18:01-19:00, Tue., 04 Jun. 0.0417 0.0364 0.0393
17:01-18:00, Tue., 04 Jun. 0.0410 0.0369 0.0391
16:01-17:00, Tue., 04 Jun. 0.0413 0.0369 0.0391
15:01-16:00, Tue., 04 Jun. 0.0417 0.0374 0.0395
14:01-15:00, Tue., 04 Jun. 0.0429 0.0378 0.0401
13:01-14:00, Tue., 04 Jun. 0.0418 0.0374 0.0395
12:01-13:00, Tue., 04 Jun. 0.0419 0.0367 0.0397
11:01-12:00, Tue., 04 Jun. 0.0415 0.0367 0.0393
10:01-11:00, Tue., 04 Jun. 0.0412 0.0371 0.0395
09:01-10:00, Tue., 04 Jun. 0.0414 0.0366 0.0394
08:01-09:00, Tue., 04 Jun. 0.0410 0.0365 0.0389
07:01-08:00, Tue., 04 Jun. 0.0419 0.0358 0.0389
06:01-07:00, Tue., 04 Jun. 0.0413 0.0361 0.0391
05:01-06:00, Tue., 04 Jun. 0.0405 0.0367 0.0387
04:01-05:00, Tue., 04 Jun. 0.0417 0.0356 0.0384
03:01-04:00, Tue., 04 Jun. 0.0406 0.0356 0.0384
02:01-03:00, Tue., 04 Jun. 0.0411 0.0370 0.0389
01:01-02:00, Tue., 04 Jun. 0.0411 0.0365 0.0390
00:01-01:00, Tue., 04 Jun. 0.0443 0.0384 0.0414
23:01-24:00, Mon., 03 Jun. 0.0536 0.0426 0.0476
22:01-23:00, Mon., 03 Jun. 0.0580 0.0504 0.0544
21:01-22:00, Mon., 03 Jun. 0.0526 0.0429 0.0471
20:01-21:00, Mon., 03 Jun. 0.0483 0.0404 0.0443
19:01-20:00, Mon., 03 Jun. 0.0477 0.0401 0.0439
18:01-19:00, Mon., 03 Jun. 0.0523 0.0427 0.0466
17:01-18:00, Mon., 03 Jun. 0.0532 0.0375 0.0454
16:01-17:00, Mon., 03 Jun. 0.0416 0.0369 0.0396
15:01-16:00, Mon., 03 Jun. 0.0425 0.0371 0.0401
14:01-15:00, Mon., 03 Jun. 0.0429 0.0383 0.0403
13:01-14:00, Mon., 03 Jun. 0.0426 0.0381 0.0405
12:01-13:00, Mon., 03 Jun. 0.0421 0.0374 0.0399
11:01-12:00, Mon., 03 Jun. 0.0423 0.0382 0.0398
10:01-11:00, Mon., 03 Jun. 0.0425 0.0377 0.0401
09:01-10:00, Mon., 03 Jun. 0.0418 0.0380 0.0397
08:01-09:00, Mon., 03 Jun. 0.0431 0.0380 0.0400