Measurement results by the hour (Kodaira) 15 Sep., 2025 - 21 Sep., 2025

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
23:01-24:00, Sun., 21 Sep. 0.0357 0.0301 0.0333
22:01-23:00, Sun., 21 Sep. 0.0357 0.0305 0.0334
21:01-22:00, Sun., 21 Sep. 0.0356 0.0314 0.0332
20:01-21:00, Sun., 21 Sep. 0.0363 0.0314 0.0333
19:01-20:00, Sun., 21 Sep. 0.0367 0.0316 0.0337
18:01-19:00, Sun., 21 Sep. 0.0363 0.0311 0.0337
17:01-18:00, Sun., 21 Sep. 0.0370 0.0316 0.0339
16:01-17:00, Sun., 21 Sep. 0.0363 0.0321 0.0341
15:01-16:00, Sun., 21 Sep. 0.0363 0.0321 0.0339
14:01-15:00, Sun., 21 Sep. 0.0359 0.0310 0.0339
13:01-14:00, Sun., 21 Sep. 0.0365 0.0314 0.0339
12:01-13:00, Sun., 21 Sep. 0.0361 0.0315 0.0338
11:01-12:00, Sun., 21 Sep. 0.0367 0.0311 0.0340
10:01-11:00, Sun., 21 Sep. 0.0366 0.0316 0.0342
09:01-10:00, Sun., 21 Sep. 0.0365 0.0321 0.0342
08:01-09:00, Sun., 21 Sep. 0.0371 0.0315 0.0340
07:01-08:00, Sun., 21 Sep. 0.0362 0.0319 0.0338
06:01-07:00, Sun., 21 Sep. 0.0367 0.0321 0.0339
05:01-06:00, Sun., 21 Sep. 0.0368 0.0318 0.0340
04:01-05:00, Sun., 21 Sep. 0.0361 0.0320 0.0340
03:01-04:00, Sun., 21 Sep. 0.0363 0.0318 0.0338
02:01-03:00, Sun., 21 Sep. 0.0363 0.0315 0.0336
01:01-02:00, Sun., 21 Sep. 0.0359 0.0311 0.0335
00:01-01:00, Sun., 21 Sep. 0.0371 0.0317 0.0339
23:01-24:00, Sat., 20 Sep. 0.0357 0.0318 0.0335
22:01-23:00, Sat., 20 Sep. 0.0362 0.0314 0.0335
21:01-22:00, Sat., 20 Sep. 0.0358 0.0313 0.0335
20:01-21:00, Sat., 20 Sep. 0.0362 0.0314 0.0334
19:01-20:00, Sat., 20 Sep. 0.0375 0.0316 0.0344
18:01-19:00, Sat., 20 Sep. 0.0402 0.0342 0.0370
17:01-18:00, Sat., 20 Sep. 0.0426 0.0367 0.0397
16:01-17:00, Sat., 20 Sep. 0.0427 0.0386 0.0406
15:01-16:00, Sat., 20 Sep. 0.0437 0.0352 0.0399
14:01-15:00, Sat., 20 Sep. 0.0405 0.0341 0.0372
13:01-14:00, Sat., 20 Sep. 0.0379 0.0332 0.0356
12:01-13:00, Sat., 20 Sep. 0.0362 0.0315 0.0338
11:01-12:00, Sat., 20 Sep. 0.0360 0.0313 0.0336
10:01-11:00, Sat., 20 Sep. 0.0360 0.0318 0.0336
09:01-10:00, Sat., 20 Sep. 0.0359 0.0311 0.0335
08:01-09:00, Sat., 20 Sep. 0.0375 0.0315 0.0350
07:01-08:00, Sat., 20 Sep. 0.0388 0.0339 0.0365
06:01-07:00, Sat., 20 Sep. 0.0450 0.0362 0.0407
05:01-06:00, Sat., 20 Sep. 0.0468 0.0370 0.0425
04:01-05:00, Sat., 20 Sep. 0.0410 0.0341 0.0368
03:01-04:00, Sat., 20 Sep. 0.0394 0.0324 0.0367
02:01-03:00, Sat., 20 Sep. 0.0369 0.0312 0.0341
01:01-02:00, Sat., 20 Sep. 0.0368 0.0323 0.0346
00:01-01:00, Sat., 20 Sep. 0.0365 0.0325 0.0341
23:01-24:00, Fri., 19 Sep. 0.0370 0.0304 0.0339
22:01-23:00, Fri., 19 Sep. 0.0359 0.0315 0.0338
21:01-22:00, Fri., 19 Sep. 0.0366 0.0311 0.0336
20:01-21:00, Fri., 19 Sep. 0.0360 0.0310 0.0336
19:01-20:00, Fri., 19 Sep. 0.0356 0.0311 0.0333
18:01-19:00, Fri., 19 Sep. 0.0363 0.0317 0.0340
17:01-18:00, Fri., 19 Sep. 0.0363 0.0312 0.0336
16:01-17:00, Fri., 19 Sep. 0.0363 0.0317 0.0340
15:01-16:00, Fri., 19 Sep. 0.0367 0.0319 0.0340
14:01-15:00, Fri., 19 Sep. 0.0363 0.0315 0.0339
13:01-14:00, Fri., 19 Sep. 0.0367 0.0308 0.0340
12:01-13:00, Fri., 19 Sep. 0.0363 0.0305 0.0338
11:01-12:00, Fri., 19 Sep. 0.0360 0.0305 0.0335
10:01-11:00, Fri., 19 Sep. 0.0367 0.0291 0.0334
09:01-10:00, Fri., 19 Sep. 0.0361 0.0316 0.0336
08:01-09:00, Fri., 19 Sep. 0.0359 0.0308 0.0337
07:01-08:00, Fri., 19 Sep. 0.0380 0.0322 0.0350
06:01-07:00, Fri., 19 Sep. 0.0477 0.0358 0.0409
05:01-06:00, Fri., 19 Sep. 0.0513 0.0411 0.0472
04:01-05:00, Fri., 19 Sep. 0.0543 0.0416 0.0486
03:01-04:00, Fri., 19 Sep. 0.0687 0.0516 0.0597
02:01-03:00, Fri., 19 Sep. 0.0793 0.0659 0.0739
01:01-02:00, Fri., 19 Sep. 0.0709 0.0423 0.0557
00:01-01:00, Fri., 19 Sep. 0.0450 0.0322 0.0384
23:01-24:00, Thu., 18 Sep. 0.0402 0.0345 0.0370
22:01-23:00, Thu., 18 Sep. 0.0403 0.0325 0.0365
21:01-22:00, Thu., 18 Sep. 0.0374 0.0315 0.0344
20:01-21:00, Thu., 18 Sep. 0.0370 0.0322 0.0344
19:01-20:00, Thu., 18 Sep. 0.0375 0.0318 0.0345
18:01-19:00, Thu., 18 Sep. 0.0367 0.0311 0.0345
17:01-18:00, Thu., 18 Sep. 0.0367 0.0329 0.0347
16:01-17:00, Thu., 18 Sep. 0.0363 0.0322 0.0347
15:01-16:00, Thu., 18 Sep. 0.0370 0.0323 0.0345
14:01-15:00, Thu., 18 Sep. 0.0367 0.0317 0.0342
13:01-14:00, Thu., 18 Sep. 0.0369 0.0310 0.0341
12:01-13:00, Thu., 18 Sep. 0.0368 0.0321 0.0343
11:01-12:00, Thu., 18 Sep. 0.0368 0.0319 0.0342
10:01-11:00, Thu., 18 Sep. 0.0369 0.0317 0.0341
09:01-10:00, Thu., 18 Sep. 0.0382 0.0322 0.0350
08:01-09:00, Thu., 18 Sep. 0.0394 0.0348 0.0367
07:01-08:00, Thu., 18 Sep. 0.0409 0.0356 0.0377
06:01-07:00, Thu., 18 Sep. 0.0384 0.0339 0.0361
05:01-06:00, Thu., 18 Sep. 0.0373 0.0329 0.0351
04:01-05:00, Thu., 18 Sep. 0.0381 0.0322 0.0347
03:01-04:00, Thu., 18 Sep. 0.0376 0.0320 0.0347
02:01-03:00, Thu., 18 Sep. 0.0374 0.0325 0.0350
01:01-02:00, Thu., 18 Sep. 0.0374 0.0327 0.0347
00:01-01:00, Thu., 18 Sep. 0.0364 0.0323 0.0344
23:01-24:00, Wed., 17 Sep. 0.0375 0.0324 0.0349
22:01-23:00, Wed., 17 Sep. 0.0383 0.0329 0.0356
21:01-22:00, Wed., 17 Sep. 0.0377 0.0318 0.0347
20:01-21:00, Wed., 17 Sep. 0.0367 0.0315 0.0346
19:01-20:00, Wed., 17 Sep. 0.0375 0.0322 0.0347
18:01-19:00, Wed., 17 Sep. 0.0370 0.0318 0.0345
17:01-18:00, Wed., 17 Sep. 0.0376 0.0318 0.0347
16:01-17:00, Wed., 17 Sep. 0.0374 0.0319 0.0343
15:01-16:00, Wed., 17 Sep. 0.0362 0.0318 0.0339
14:01-15:00, Wed., 17 Sep. 0.0380 0.0319 0.0343
13:01-14:00, Wed., 17 Sep. 0.0370 0.0318 0.0347
12:01-13:00, Wed., 17 Sep. 0.0367 0.0316 0.0344
11:01-12:00, Wed., 17 Sep. 0.0381 0.0318 0.0345
10:01-11:00, Wed., 17 Sep. 0.0363 0.0323 0.0347
09:01-10:00, Wed., 17 Sep. 0.0374 0.0326 0.0347
08:01-09:00, Wed., 17 Sep. 0.0390 0.0329 0.0353
07:01-08:00, Wed., 17 Sep. 0.0386 0.0325 0.0361
06:01-07:00, Wed., 17 Sep. 0.0389 0.0347 0.0365
05:01-06:00, Wed., 17 Sep. 0.0399 0.0340 0.0364
04:01-05:00, Wed., 17 Sep. 0.0390 0.0339 0.0363
03:01-04:00, Wed., 17 Sep. 0.0367 0.0318 0.0346
02:01-03:00, Wed., 17 Sep. 0.0367 0.0309 0.0344
01:01-02:00, Wed., 17 Sep. 0.0373 0.0320 0.0345
00:01-01:00, Wed., 17 Sep. 0.0370 0.0317 0.0337
23:01-24:00, Tue., 16 Sep. 0.0368 0.0318 0.0340
22:01-23:00, Tue., 16 Sep. 0.0358 0.0310 0.0337
21:01-22:00, Tue., 16 Sep. 0.0362 0.0316 0.0336
20:01-21:00, Tue., 16 Sep. 0.0362 0.0310 0.0339
19:01-20:00, Tue., 16 Sep. 0.0366 0.0308 0.0339
18:01-19:00, Tue., 16 Sep. 0.0359 0.0321 0.0340
17:01-18:00, Tue., 16 Sep. 0.0363 0.0318 0.0340
16:01-17:00, Tue., 16 Sep. 0.0360 0.0318 0.0339
15:01-16:00, Tue., 16 Sep. 0.0360 0.0315 0.0335
14:01-15:00, Tue., 16 Sep. 0.0360 0.0310 0.0335
13:01-14:00, Tue., 16 Sep. 0.0367 0.0316 0.0338
12:01-13:00, Tue., 16 Sep. 0.0366 0.0316 0.0340
11:01-12:00, Tue., 16 Sep. 0.0366 0.0318 0.0342
10:01-11:00, Tue., 16 Sep. 0.0369 0.0318 0.0345
09:01-10:00, Tue., 16 Sep. 0.0377 0.0316 0.0348
08:01-09:00, Tue., 16 Sep. 0.0377 0.0329 0.0354
07:01-08:00, Tue., 16 Sep. 0.0382 0.0334 0.0360
06:01-07:00, Tue., 16 Sep. 0.0388 0.0337 0.0353
05:01-06:00, Tue., 16 Sep. 0.0375 0.0332 0.0353
04:01-05:00, Tue., 16 Sep. 0.0376 0.0325 0.0352
03:01-04:00, Tue., 16 Sep. 0.0365 0.0325 0.0348
02:01-03:00, Tue., 16 Sep. 0.0381 0.0325 0.0352
01:01-02:00, Tue., 16 Sep. 0.0397 0.0338 0.0358
00:01-01:00, Tue., 16 Sep. 0.0384 0.0324 0.0353
23:01-24:00, Mon., 15 Sep. 0.0398 0.0339 0.0362
22:01-23:00, Mon., 15 Sep. 0.0377 0.0318 0.0347
21:01-22:00, Mon., 15 Sep. 0.0374 0.0313 0.0342
20:01-21:00, Mon., 15 Sep. 0.0370 0.0318 0.0340
19:01-20:00, Mon., 15 Sep. 0.0383 0.0315 0.0339
18:01-19:00, Mon., 15 Sep. 0.0370 0.0316 0.0340
17:01-18:00, Mon., 15 Sep. 0.0359 0.0320 0.0340
16:01-17:00, Mon., 15 Sep. 0.0360 0.0317 0.0340
15:01-16:00, Mon., 15 Sep. 0.0357 0.0308 0.0338
14:01-15:00, Mon., 15 Sep. 0.0367 0.0317 0.0341
13:01-14:00, Mon., 15 Sep. 0.0370 0.0321 0.0342
12:01-13:00, Mon., 15 Sep. 0.0363 0.0318 0.0339
11:01-12:00, Mon., 15 Sep. 0.0367 0.0308 0.0341
10:01-11:00, Mon., 15 Sep. 0.0367 0.0319 0.0341
09:01-10:00, Mon., 15 Sep. 0.0361 0.0317 0.0340
08:01-09:00, Mon., 15 Sep. 0.0381 0.0320 0.0343
07:01-08:00, Mon., 15 Sep. 0.0368 0.0319 0.0340
06:01-07:00, Mon., 15 Sep. 0.0358 0.0314 0.0339
05:01-06:00, Mon., 15 Sep. 0.0374 0.0314 0.0339
04:01-05:00, Mon., 15 Sep. 0.0369 0.0316 0.0339
03:01-04:00, Mon., 15 Sep. 0.0366 0.0313 0.0337
02:01-03:00, Mon., 15 Sep. 0.0367 0.0316 0.0344
01:01-02:00, Mon., 15 Sep. 0.0367 0.0320 0.0344
00:01-01:00, Mon., 15 Sep. 0.0361 0.0311 0.0341