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
15:01-16:00, Sat., 17 Oct. 0.0407 0.0365 0.0387
14:01-15:00, Sat., 17 Oct. 0.0410 0.0349 0.0384
13:01-14:00, Sat., 17 Oct. 0.0410 0.0363 0.0386
12:01-13:00, Sat., 17 Oct. 0.0411 0.0358 0.0386
11:01-12:00, Sat., 17 Oct. 0.0419 0.0367 0.0389
10:01-11:00, Sat., 17 Oct. 0.0410 0.0364 0.0392
09:01-10:00, Sat., 17 Oct. 0.0406 0.0363 0.0387
08:01-09:00, Sat., 17 Oct. 0.0409 0.0363 0.0387
07:01-08:00, Sat., 17 Oct. 0.0400 0.0360 0.0381
06:01-07:00, Sat., 17 Oct. 0.0408 0.0360 0.0379
05:01-06:00, Sat., 17 Oct. 0.0403 0.0362 0.0384
04:01-05:00, Sat., 17 Oct. 0.0413 0.0363 0.0388
03:01-04:00, Sat., 17 Oct. 0.0409 0.0355 0.0385
02:01-03:00, Sat., 17 Oct. 0.0406 0.0366 0.0383
01:01-02:00, Sat., 17 Oct. 0.0409 0.0367 0.0384
00:01-01:00, Sat., 17 Oct. 0.0419 0.0361 0.0384
23:01-24:00, Fri., 16 Oct. 0.0408 0.0354 0.0378
22:01-23:00, Fri., 16 Oct. 0.0404 0.0348 0.0377
21:01-22:00, Fri., 16 Oct. 0.0392 0.0358 0.0376
20:01-21:00, Fri., 16 Oct. 0.0398 0.0356 0.0375
19:01-20:00, Fri., 16 Oct. 0.0394 0.0346 0.0377
18:01-19:00, Fri., 16 Oct. 0.0400 0.0350 0.0375
17:01-18:00, Fri., 16 Oct. 0.0407 0.0356 0.0378
16:01-17:00, Fri., 16 Oct. 0.0407 0.0356 0.0382
15:01-16:00, Fri., 16 Oct. 0.0402 0.0370 0.0388
14:01-15:00, Fri., 16 Oct. 0.0419 0.0368 0.0388
13:01-14:00, Fri., 16 Oct. 0.0414 0.0363 0.0389
12:01-13:00, Fri., 16 Oct. 0.0411 0.0365 0.0387
11:01-12:00, Fri., 16 Oct. 0.0418 0.0358 0.0387
10:01-11:00, Fri., 16 Oct. 0.0404 0.0367 0.0383
09:01-10:00, Fri., 16 Oct. 0.0405 0.0360 0.0382
08:01-09:00, Fri., 16 Oct. 0.0409 0.0356 0.0382
07:01-08:00, Fri., 16 Oct. 0.0419 0.0364 0.0383
06:01-07:00, Fri., 16 Oct. 0.0404 0.0357 0.0382
05:01-06:00, Fri., 16 Oct. 0.0407 0.0358 0.0380
04:01-05:00, Fri., 16 Oct. 0.0401 0.0360 0.0380
03:01-04:00, Fri., 16 Oct. 0.0401 0.0347 0.0377
02:01-03:00, Fri., 16 Oct. 0.0393 0.0351 0.0374
01:01-02:00, Fri., 16 Oct. 0.0395 0.0351 0.0373
00:01-01:00, Fri., 16 Oct. 0.0398 0.0355 0.0376
23:01-24:00, Thu., 15 Oct. 0.0395 0.0347 0.0373
22:01-23:00, Thu., 15 Oct. 0.0394 0.0353 0.0373
21:01-22:00, Thu., 15 Oct. 0.0402 0.0348 0.0374
20:01-21:00, Thu., 15 Oct. 0.0402 0.0354 0.0376
19:01-20:00, Thu., 15 Oct. 0.0392 0.0352 0.0374
18:01-19:00, Thu., 15 Oct. 0.0402 0.0354 0.0372
17:01-18:00, Thu., 15 Oct. 0.0403 0.0352 0.0376
16:01-17:00, Thu., 15 Oct. 0.0401 0.0354 0.0376
15:01-16:00, Thu., 15 Oct. 0.0397 0.0354 0.0376
14:01-15:00, Thu., 15 Oct. 0.0402 0.0356 0.0378
13:01-14:00, Thu., 15 Oct. 0.0412 0.0355 0.0378
12:01-13:00, Thu., 15 Oct. 0.0405 0.0360 0.0379
11:01-12:00, Thu., 15 Oct. 0.0403 0.0347 0.0378
10:01-11:00, Thu., 15 Oct. 0.0400 0.0354 0.0379
09:01-10:00, Thu., 15 Oct. 0.0402 0.0353 0.0381
08:01-09:00, Thu., 15 Oct. 0.0411 0.0358 0.0381
07:01-08:00, Thu., 15 Oct. 0.0400 0.0351 0.0378
06:01-07:00, Thu., 15 Oct. 0.0393 0.0353 0.0374
05:01-06:00, Thu., 15 Oct. 0.0398 0.0356 0.0373
04:01-05:00, Thu., 15 Oct. 0.0405 0.0353 0.0373
03:01-04:00, Thu., 15 Oct. 0.0398 0.0360 0.0378
02:01-03:00, Thu., 15 Oct. 0.0404 0.0360 0.0381
01:01-02:00, Thu., 15 Oct. 0.0419 0.0359 0.0381
00:01-01:00, Thu., 15 Oct. 0.0398 0.0360 0.0379
23:01-24:00, Wed., 14 Oct. 0.0410 0.0352 0.0382
22:01-23:00, Wed., 14 Oct. 0.0402 0.0356 0.0382
21:01-22:00, Wed., 14 Oct. 0.0405 0.0357 0.0381
20:01-21:00, Wed., 14 Oct. 0.0404 0.0356 0.0381
19:01-20:00, Wed., 14 Oct. 0.0402 0.0356 0.0378
18:01-19:00, Wed., 14 Oct. 0.0398 0.0352 0.0377
17:01-18:00, Wed., 14 Oct. 0.0395 0.0359 0.0378
16:01-17:00, Wed., 14 Oct. 0.0415 0.0348 0.0379
15:01-16:00, Wed., 14 Oct. 0.0401 0.0359 0.0384
14:01-15:00, Wed., 14 Oct. 0.0435 0.0378 0.0407
13:01-14:00, Wed., 14 Oct. 0.0499 0.0429 0.0463
12:01-13:00, Wed., 14 Oct. 0.0476 0.0371 0.0413
11:01-12:00, Wed., 14 Oct. 0.0405 0.0353 0.0380
10:01-11:00, Wed., 14 Oct. 0.0393 0.0357 0.0374
09:01-10:00, Wed., 14 Oct. 0.0402 0.0348 0.0377
08:01-09:00, Wed., 14 Oct. 0.0398 0.0353 0.0377
07:01-08:00, Wed., 14 Oct. 0.0403 0.0350 0.0379
06:01-07:00, Wed., 14 Oct. 0.0398 0.0341 0.0374
05:01-06:00, Wed., 14 Oct. 0.0398 0.0353 0.0371
04:01-05:00, Wed., 14 Oct. 0.0399 0.0352 0.0375
03:01-04:00, Wed., 14 Oct. 0.0393 0.0360 0.0375
02:01-03:00, Wed., 14 Oct. 0.0397 0.0358 0.0373
01:01-02:00, Wed., 14 Oct. 0.0412 0.0352 0.0374
00:01-01:00, Wed., 14 Oct. 0.0402 0.0355 0.0374
23:01-24:00, Tue., 13 Oct. 0.0397 0.0350 0.0372
22:01-23:00, Tue., 13 Oct. 0.0392 0.0353 0.0374
21:01-22:00, Tue., 13 Oct. 0.0398 0.0356 0.0376
20:01-21:00, Tue., 13 Oct. 0.0401 0.0357 0.0373
19:01-20:00, Tue., 13 Oct. 0.0391 0.0347 0.0371
18:01-19:00, Tue., 13 Oct. 0.0395 0.0344 0.0372
17:01-18:00, Tue., 13 Oct. 0.0394 0.0350 0.0374
16:01-17:00, Tue., 13 Oct. 0.0402 0.0349 0.0376
15:01-16:00, Tue., 13 Oct. 0.0401 0.0358 0.0375
14:01-15:00, Tue., 13 Oct. 0.0399 0.0354 0.0372
13:01-14:00, Tue., 13 Oct. 0.0398 0.0360 0.0376
12:01-13:00, Tue., 13 Oct. 0.0395 0.0352 0.0375
11:01-12:00, Tue., 13 Oct. 0.0396 0.0356 0.0377
10:01-11:00, Tue., 13 Oct. 0.0398 0.0357 0.0377
09:01-10:00, Tue., 13 Oct. 0.0398 0.0360 0.0376
08:01-09:00, Tue., 13 Oct. 0.0401 0.0346 0.0377
07:01-08:00, Tue., 13 Oct. 0.0398 0.0354 0.0373
06:01-07:00, Tue., 13 Oct. 0.0398 0.0360 0.0376
05:01-06:00, Tue., 13 Oct. 0.0402 0.0349 0.0374
04:01-05:00, Tue., 13 Oct. 0.0391 0.0349 0.0374
03:01-04:00, Tue., 13 Oct. 0.0403 0.0356 0.0376
02:01-03:00, Tue., 13 Oct. 0.0398 0.0356 0.0377
01:01-02:00, Tue., 13 Oct. 0.0396 0.0351 0.0373
00:01-01:00, Tue., 13 Oct. 0.0392 0.0349 0.0372
23:01-24:00, Mon., 12 Oct. 0.0392 0.0341 0.0373
22:01-23:00, Mon., 12 Oct. 0.0401 0.0351 0.0374
21:01-22:00, Mon., 12 Oct. 0.0391 0.0342 0.0370
20:01-21:00, Mon., 12 Oct. 0.0398 0.0340 0.0370
19:01-20:00, Mon., 12 Oct. 0.0395 0.0351 0.0372
18:01-19:00, Mon., 12 Oct. 0.0393 0.0352 0.0371
17:01-18:00, Mon., 12 Oct. 0.0390 0.0356 0.0372
16:01-17:00, Mon., 12 Oct. 0.0397 0.0354 0.0372
15:01-16:00, Mon., 12 Oct. 0.0403 0.0360 0.0379
14:01-15:00, Mon., 12 Oct. 0.0402 0.0358 0.0380
13:01-14:00, Mon., 12 Oct. 0.0402 0.0355 0.0382
12:01-13:00, Mon., 12 Oct. 0.0412 0.0359 0.0382
11:01-12:00, Mon., 12 Oct. 0.0408 0.0358 0.0383
10:01-11:00, Mon., 12 Oct. 0.0396 0.0359 0.0378
09:01-10:00, Mon., 12 Oct. 0.0405 0.0356 0.0379
08:01-09:00, Mon., 12 Oct. 0.0415 0.0363 0.0381
07:01-08:00, Mon., 12 Oct. 0.0398 0.0357 0.0380
06:01-07:00, Mon., 12 Oct. 0.0398 0.0360 0.0381
05:01-06:00, Mon., 12 Oct. 0.0402 0.0356 0.0380
04:01-05:00, Mon., 12 Oct. 0.0398 0.0350 0.0377
03:01-04:00, Mon., 12 Oct. 0.0396 0.0353 0.0374
02:01-03:00, Mon., 12 Oct. 0.0401 0.0353 0.0373
01:01-02:00, Mon., 12 Oct. 0.0389 0.0342 0.0370
00:01-01:00, Mon., 12 Oct. 0.0398 0.0351 0.0376
23:01-24:00, Sun., 11 Oct. 0.0398 0.0354 0.0375
22:01-23:00, Sun., 11 Oct. 0.0391 0.0345 0.0371
21:01-22:00, Sun., 11 Oct. 0.0398 0.0345 0.0373
20:01-21:00, Sun., 11 Oct. 0.0399 0.0341 0.0370
19:01-20:00, Sun., 11 Oct. 0.0395 0.0350 0.0373
18:01-19:00, Sun., 11 Oct. 0.0399 0.0349 0.0370
17:01-18:00, Sun., 11 Oct. 0.0402 0.0347 0.0373
16:01-17:00, Sun., 11 Oct. 0.0402 0.0361 0.0379
15:01-16:00, Sun., 11 Oct. 0.0394 0.0354 0.0376
14:01-15:00, Sun., 11 Oct. 0.0405 0.0352 0.0380
13:01-14:00, Sun., 11 Oct. 0.0399 0.0357 0.0382
12:01-13:00, Sun., 11 Oct. 0.0404 0.0356 0.0381
11:01-12:00, Sun., 11 Oct. 0.0401 0.0353 0.0381
10:01-11:00, Sun., 11 Oct. 0.0420 0.0360 0.0382
09:01-10:00, Sun., 11 Oct. 0.0404 0.0348 0.0378
08:01-09:00, Sun., 11 Oct. 0.0398 0.0356 0.0377
07:01-08:00, Sun., 11 Oct. 0.0407 0.0347 0.0378
06:01-07:00, Sun., 11 Oct. 0.0402 0.0361 0.0377
05:01-06:00, Sun., 11 Oct. 0.0400 0.0358 0.0378
04:01-05:00, Sun., 11 Oct. 0.0398 0.0355 0.0377
03:01-04:00, Sun., 11 Oct. 0.0405 0.0347 0.0376
02:01-03:00, Sun., 11 Oct. 0.0396 0.0349 0.0373
01:01-02:00, Sun., 11 Oct. 0.0386 0.0343 0.0370
00:01-01:00, Sun., 11 Oct. 0.0395 0.0350 0.0373
23:01-24:00, Sat., 10 Oct. 0.0402 0.0353 0.0372
22:01-23:00, Sat., 10 Oct. 0.0397 0.0346 0.0373
21:01-22:00, Sat., 10 Oct. 0.0394 0.0349 0.0371
20:01-21:00, Sat., 10 Oct. 0.0386 0.0347 0.0369
19:01-20:00, Sat., 10 Oct. 0.0396 0.0353 0.0373
18:01-19:00, Sat., 10 Oct. 0.0398 0.0355 0.0374
17:01-18:00, Sat., 10 Oct. 0.0391 0.0352 0.0372
16:01-17:00, Sat., 10 Oct. 0.0398 0.0354 0.0375
15:01-16:00, Sat., 10 Oct. 0.0402 0.0359 0.0380
14:01-15:00, Sat., 10 Oct. 0.0397 0.0355 0.0379
13:01-14:00, Sat., 10 Oct. 0.0401 0.0365 0.0381
12:01-13:00, Sat., 10 Oct. 0.0409 0.0356 0.0382
11:01-12:00, Sat., 10 Oct. 0.0405 0.0357 0.0381
10:01-11:00, Sat., 10 Oct. 0.0405 0.0352 0.0382
09:01-10:00, Sat., 10 Oct. 0.0395 0.0344 0.0373
08:01-09:00, Sat., 10 Oct. 0.0401 0.0363 0.0378
07:01-08:00, Sat., 10 Oct. 0.0391 0.0352 0.0373
06:01-07:00, Sat., 10 Oct. 0.0392 0.0353 0.0373
05:01-06:00, Sat., 10 Oct. 0.0392 0.0350 0.0372
04:01-05:00, Sat., 10 Oct. 0.0396 0.0346 0.0369
03:01-04:00, Sat., 10 Oct. 0.0393 0.0343 0.0371
02:01-03:00, Sat., 10 Oct. 0.0390 0.0347 0.0370
01:01-02:00, Sat., 10 Oct. 0.0390 0.0349 0.0368
00:01-01:00, Sat., 10 Oct. 0.0389 0.0339 0.0367
23:01-24:00, Fri., 09 Oct. 0.0396 0.0345 0.0372
22:01-23:00, Fri., 09 Oct. 0.0395 0.0346 0.0371
21:01-22:00, Fri., 09 Oct. 0.0398 0.0343 0.0369
20:01-21:00, Fri., 09 Oct. 0.0387 0.0342 0.0367
19:01-20:00, Fri., 09 Oct. 0.0395 0.0351 0.0369
18:01-19:00, Fri., 09 Oct. 0.0394 0.0346 0.0370
17:01-18:00, Fri., 09 Oct. 0.0398 0.0345 0.0368
16:01-17:00, Fri., 09 Oct. 0.0395 0.0343 0.0373
15:01-16:00, Fri., 09 Oct. 0.0402 0.0353 0.0382
14:01-15:00, Fri., 09 Oct. 0.0413 0.0353 0.0380
13:01-14:00, Fri., 09 Oct. 0.0401 0.0360 0.0381
12:01-13:00, Fri., 09 Oct. 0.0412 0.0357 0.0379
11:01-12:00, Fri., 09 Oct. 0.0402 0.0354 0.0376
10:01-11:00, Fri., 09 Oct. 0.0400 0.0363 0.0382
09:01-10:00, Fri., 09 Oct. 0.0399 0.0356 0.0378
08:01-09:00, Fri., 09 Oct. 0.0401 0.0354 0.0376
07:01-08:00, Fri., 09 Oct. 0.0401 0.0353 0.0372
06:01-07:00, Fri., 09 Oct. 0.0388 0.0356 0.0372
05:01-06:00, Fri., 09 Oct. 0.0394 0.0356 0.0373
04:01-05:00, Fri., 09 Oct. 0.0388 0.0346 0.0368
03:01-04:00, Fri., 09 Oct. 0.0395 0.0352 0.0370
02:01-03:00, Fri., 09 Oct. 0.0384 0.0350 0.0369
01:01-02:00, Fri., 09 Oct. 0.0384 0.0343 0.0367
00:01-01:00, Fri., 09 Oct. 0.0396 0.0343 0.0367
23:01-24:00, Thu., 08 Oct. 0.0393 0.0346 0.0368
22:01-23:00, Thu., 08 Oct. 0.0394 0.0346 0.0368
21:01-22:00, Thu., 08 Oct. 0.0395 0.0336 0.0366
20:01-21:00, Thu., 08 Oct. 0.0385 0.0338 0.0367
19:01-20:00, Thu., 08 Oct. 0.0388 0.0347 0.0367
18:01-19:00, Thu., 08 Oct. 0.0388 0.0347 0.0368
17:01-18:00, Thu., 08 Oct. 0.0389 0.0340 0.0365
16:01-17:00, Thu., 08 Oct. 0.0391 0.0348 0.0368
15:01-16:00, Thu., 08 Oct. 0.0400 0.0347 0.0375
14:01-15:00, Thu., 08 Oct. 0.0401 0.0353 0.0377
13:01-14:00, Thu., 08 Oct. 0.0391 0.0352 0.0375
12:01-13:00, Thu., 08 Oct. 0.0401 0.0353 0.0376
11:01-12:00, Thu., 08 Oct. 0.0402 0.0343 0.0377
10:01-11:00, Thu., 08 Oct. 0.0402 0.0354 0.0376
09:01-10:00, Thu., 08 Oct. 0.0396 0.0345 0.0371
08:01-09:00, Thu., 08 Oct. 0.0386 0.0346 0.0369
07:01-08:00, Thu., 08 Oct. 0.0392 0.0348 0.0371
06:01-07:00, Thu., 08 Oct. 0.0395 0.0348 0.0366
05:01-06:00, Thu., 08 Oct. 0.0384 0.0345 0.0366
04:01-05:00, Thu., 08 Oct. 0.0387 0.0343 0.0363
03:01-04:00, Thu., 08 Oct. 0.0384 0.0344 0.0364
02:01-03:00, Thu., 08 Oct. 0.0391 0.0336 0.0369
01:01-02:00, Thu., 08 Oct. 0.0391 0.0346 0.0370
00:01-01:00, Thu., 08 Oct. 0.0393 0.0347 0.0369
23:01-24:00, Wed., 07 Oct. 0.0388 0.0347 0.0365
22:01-23:00, Wed., 07 Oct. 0.0385 0.0349 0.0367
21:01-22:00, Wed., 07 Oct. 0.0405 0.0345 0.0369
20:01-21:00, Wed., 07 Oct. 0.0387 0.0343 0.0366
19:01-20:00, Wed., 07 Oct. 0.0389 0.0340 0.0368
18:01-19:00, Wed., 07 Oct. 0.0391 0.0352 0.0369
17:01-18:00, Wed., 07 Oct. 0.0388 0.0346 0.0369
16:01-17:00, Wed., 07 Oct. 0.0393 0.0343 0.0370