Measurement results by the hour (Ota) 9 Mar., 2026 - 15 Mar., 2026

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., 15 Mar. 0.0332 0.0283 0.0313
22:01-23:00, Sun., 15 Mar. 0.0340 0.0289 0.0314
21:01-22:00, Sun., 15 Mar. 0.0355 0.0283 0.0312
20:01-21:00, Sun., 15 Mar. 0.0332 0.0290 0.0310
19:01-20:00, Sun., 15 Mar. 0.0339 0.0290 0.0311
18:01-19:00, Sun., 15 Mar. 0.0343 0.0292 0.0317
17:01-18:00, Sun., 15 Mar. 0.0336 0.0297 0.0317
16:01-17:00, Sun., 15 Mar. 0.0339 0.0297 0.0316
15:01-16:00, Sun., 15 Mar. 0.0349 0.0294 0.0317
14:01-15:00, Sun., 15 Mar. 0.0334 0.0288 0.0313
13:01-14:00, Sun., 15 Mar. 0.0344 0.0297 0.0316
12:01-13:00, Sun., 15 Mar. 0.0336 0.0294 0.0318
11:01-12:00, Sun., 15 Mar. 0.0343 0.0301 0.0320
10:01-11:00, Sun., 15 Mar. 0.0341 0.0296 0.0316
09:01-10:00, Sun., 15 Mar. 0.0351 0.0289 0.0318
08:01-09:00, Sun., 15 Mar. 0.0342 0.0294 0.0315
07:01-08:00, Sun., 15 Mar. 0.0342 0.0290 0.0315
06:01-07:00, Sun., 15 Mar. 0.0344 0.0298 0.0317
05:01-06:00, Sun., 15 Mar. 0.0336 0.0293 0.0313
04:01-05:00, Sun., 15 Mar. 0.0334 0.0294 0.0314
03:01-04:00, Sun., 15 Mar. 0.0342 0.0292 0.0312
02:01-03:00, Sun., 15 Mar. 0.0327 0.0287 0.0312
01:01-02:00, Sun., 15 Mar. 0.0330 0.0287 0.0312
00:01-01:00, Sun., 15 Mar. 0.0343 0.0292 0.0314
23:01-24:00, Sat., 14 Mar. 0.0344 0.0287 0.0313
22:01-23:00, Sat., 14 Mar. 0.0337 0.0287 0.0312
21:01-22:00, Sat., 14 Mar. 0.0332 0.0290 0.0312
20:01-21:00, Sat., 14 Mar. 0.0336 0.0287 0.0310
19:01-20:00, Sat., 14 Mar. 0.0337 0.0290 0.0313
18:01-19:00, Sat., 14 Mar. 0.0331 0.0291 0.0312
17:01-18:00, Sat., 14 Mar. 0.0334 0.0292 0.0311
16:01-17:00, Sat., 14 Mar. 0.0339 0.0293 0.0315
15:01-16:00, Sat., 14 Mar. 0.0336 0.0292 0.0315
14:01-15:00, Sat., 14 Mar. 0.0344 0.0294 0.0317
13:01-14:00, Sat., 14 Mar. 0.0345 0.0288 0.0319
12:01-13:00, Sat., 14 Mar. 0.0343 0.0297 0.0316
11:01-12:00, Sat., 14 Mar. 0.0338 0.0297 0.0316
10:01-11:00, Sat., 14 Mar. 0.0338 0.0294 0.0316
09:01-10:00, Sat., 14 Mar. 0.0330 0.0291 0.0314
08:01-09:00, Sat., 14 Mar. 0.0336 0.0292 0.0316
07:01-08:00, Sat., 14 Mar. 0.0336 0.0287 0.0313
06:01-07:00, Sat., 14 Mar. 0.0336 0.0296 0.0314
05:01-06:00, Sat., 14 Mar. 0.0344 0.0292 0.0316
04:01-05:00, Sat., 14 Mar. 0.0350 0.0290 0.0318
03:01-04:00, Sat., 14 Mar. 0.0341 0.0290 0.0316
02:01-03:00, Sat., 14 Mar. 0.0338 0.0294 0.0315
01:01-02:00, Sat., 14 Mar. 0.0341 0.0293 0.0314
00:01-01:00, Sat., 14 Mar. 0.0339 0.0296 0.0316
23:01-24:00, Fri., 13 Mar. 0.0340 0.0292 0.0314
22:01-23:00, Fri., 13 Mar. 0.0337 0.0291 0.0314
21:01-22:00, Fri., 13 Mar. 0.0343 0.0290 0.0312
20:01-21:00, Fri., 13 Mar. 0.0339 0.0294 0.0315
19:01-20:00, Fri., 13 Mar. 0.0337 0.0294 0.0314
18:01-19:00, Fri., 13 Mar. 0.0334 0.0286 0.0314
17:01-18:00, Fri., 13 Mar. 0.0341 0.0292 0.0314
16:01-17:00, Fri., 13 Mar. 0.0342 0.0293 0.0316
15:01-16:00, Fri., 13 Mar. 0.0349 0.0288 0.0317
14:01-15:00, Fri., 13 Mar. 0.0342 0.0290 0.0311
13:01-14:00, Fri., 13 Mar. 0.0332 0.0292 0.0311
12:01-13:00, Fri., 13 Mar. 0.0341 0.0306 0.0319
11:01-12:00, Fri., 13 Mar. 0.0339 0.0295 0.0317
10:01-11:00, Fri., 13 Mar. 0.0336 0.0291 0.0316
09:01-10:00, Fri., 13 Mar. 0.0336 0.0284 0.0307
08:01-09:00, Fri., 13 Mar. 0.0332 0.0285 0.0312
07:01-08:00, Fri., 13 Mar. 0.0339 0.0291 0.0314
06:01-07:00, Fri., 13 Mar. 0.0337 0.0294 0.0313
05:01-06:00, Fri., 13 Mar. 0.0337 0.0290 0.0313
04:01-05:00, Fri., 13 Mar. 0.0347 0.0297 0.0318
03:01-04:00, Fri., 13 Mar. 0.0332 0.0292 0.0316
02:01-03:00, Fri., 13 Mar. 0.0339 0.0296 0.0318
01:01-02:00, Fri., 13 Mar. 0.0348 0.0296 0.0315
00:01-01:00, Fri., 13 Mar. 0.0336 0.0295 0.0314
23:01-24:00, Thu., 12 Mar. 0.0335 0.0277 0.0313
22:01-23:00, Thu., 12 Mar. 0.0341 0.0294 0.0315
21:01-22:00, Thu., 12 Mar. 0.0351 0.0290 0.0313
20:01-21:00, Thu., 12 Mar. 0.0343 0.0292 0.0315
19:01-20:00, Thu., 12 Mar. 0.0336 0.0290 0.0315
18:01-19:00, Thu., 12 Mar. 0.0334 0.0293 0.0314
17:01-18:00, Thu., 12 Mar. 0.0340 0.0290 0.0314
16:01-17:00, Thu., 12 Mar. 0.0335 0.0291 0.0317
15:01-16:00, Thu., 12 Mar. 0.0335 0.0293 0.0318
14:01-15:00, Thu., 12 Mar. 0.0340 0.0293 0.0317
13:01-14:00, Thu., 12 Mar. 0.0345 0.0287 0.0317
12:01-13:00, Thu., 12 Mar. 0.0342 0.0299 0.0318
11:01-12:00, Thu., 12 Mar. 0.0346 0.0298 0.0321
10:01-11:00, Thu., 12 Mar. 0.0343 0.0295 0.0317
09:01-10:00, Thu., 12 Mar. 0.0341 0.0289 0.0317
08:01-09:00, Thu., 12 Mar. 0.0343 0.0293 0.0318
07:01-08:00, Thu., 12 Mar. 0.0343 0.0289 0.0318
06:01-07:00, Thu., 12 Mar. 0.0344 0.0297 0.0316
05:01-06:00, Thu., 12 Mar. 0.0346 0.0291 0.0317
04:01-05:00, Thu., 12 Mar. 0.0336 0.0283 0.0315
03:01-04:00, Thu., 12 Mar. 0.0336 0.0287 0.0313
02:01-03:00, Thu., 12 Mar. 0.0340 0.0301 0.0317
01:01-02:00, Thu., 12 Mar. 0.0337 0.0286 0.0318
00:01-01:00, Thu., 12 Mar. 0.0345 0.0301 0.0327
23:01-24:00, Wed., 11 Mar. 0.0343 0.0295 0.0319
22:01-23:00, Wed., 11 Mar. 0.0334 0.0295 0.0316
21:01-22:00, Wed., 11 Mar. 0.0345 0.0297 0.0315
20:01-21:00, Wed., 11 Mar. 0.0343 0.0292 0.0313
19:01-20:00, Wed., 11 Mar. 0.0340 0.0287 0.0314
18:01-19:00, Wed., 11 Mar. 0.0332 0.0286 0.0312
17:01-18:00, Wed., 11 Mar. 0.0332 0.0290 0.0311
16:01-17:00, Wed., 11 Mar. 0.0340 0.0287 0.0312
15:01-16:00, Wed., 11 Mar. 0.0335 0.0288 0.0314
14:01-15:00, Wed., 11 Mar. 0.0344 0.0295 0.0316
13:01-14:00, Wed., 11 Mar. 0.0333 0.0298 0.0317
12:01-13:00, Wed., 11 Mar. 0.0329 0.0289 0.0315
11:01-12:00, Wed., 11 Mar. 0.0344 0.0297 0.0318
10:01-11:00, Wed., 11 Mar. 0.0342 0.0294 0.0316
09:01-10:00, Wed., 11 Mar. 0.0336 0.0293 0.0314
08:01-09:00, Wed., 11 Mar. 0.0339 0.0286 0.0312
07:01-08:00, Wed., 11 Mar. 0.0330 0.0290 0.0312
06:01-07:00, Wed., 11 Mar. 0.0355 0.0291 0.0316
05:01-06:00, Wed., 11 Mar. 0.0332 0.0293 0.0313
04:01-05:00, Wed., 11 Mar. 0.0339 0.0297 0.0315
03:01-04:00, Wed., 11 Mar. 0.0336 0.0292 0.0313
02:01-03:00, Wed., 11 Mar. 0.0347 0.0293 0.0311
01:01-02:00, Wed., 11 Mar. 0.0339 0.0294 0.0312
00:01-01:00, Wed., 11 Mar. 0.0338 0.0289 0.0312
23:01-24:00, Tue., 10 Mar. 0.0334 0.0285 0.0309
22:01-23:00, Tue., 10 Mar. 0.0336 0.0289 0.0308
21:01-22:00, Tue., 10 Mar. 0.0327 0.0289 0.0308
20:01-21:00, Tue., 10 Mar. 0.0338 0.0283 0.0315
19:01-20:00, Tue., 10 Mar. 0.0343 0.0290 0.0314
18:01-19:00, Tue., 10 Mar. 0.0340 0.0293 0.0315
17:01-18:00, Tue., 10 Mar. 0.0343 0.0293 0.0317
16:01-17:00, Tue., 10 Mar. 0.0336 0.0294 0.0314
15:01-16:00, Tue., 10 Mar. 0.0347 0.0290 0.0319
14:01-15:00, Tue., 10 Mar. 0.0373 0.0301 0.0341
13:01-14:00, Tue., 10 Mar. 0.0452 0.0353 0.0393
12:01-13:00, Tue., 10 Mar. 0.0487 0.0353 0.0430
11:01-12:00, Tue., 10 Mar. 0.0372 0.0325 0.0349
10:01-11:00, Tue., 10 Mar. 0.0363 0.0308 0.0340
09:01-10:00, Tue., 10 Mar. 0.0351 0.0293 0.0317
08:01-09:00, Tue., 10 Mar. 0.0331 0.0288 0.0309
07:01-08:00, Tue., 10 Mar. 0.0329 0.0290 0.0312
06:01-07:00, Tue., 10 Mar. 0.0339 0.0284 0.0316
05:01-06:00, Tue., 10 Mar. 0.0343 0.0294 0.0316
04:01-05:00, Tue., 10 Mar. 0.0342 0.0290 0.0312
03:01-04:00, Tue., 10 Mar. 0.0339 0.0300 0.0317
02:01-03:00, Tue., 10 Mar. 0.0336 0.0297 0.0317
01:01-02:00, Tue., 10 Mar. 0.0338 0.0292 0.0316
00:01-01:00, Tue., 10 Mar. 0.0338 0.0294 0.0316
23:01-24:00, Mon., 09 Mar. 0.0339 0.0294 0.0312
22:01-23:00, Mon., 09 Mar. 0.0332 0.0294 0.0310
21:01-22:00, Mon., 09 Mar. 0.0337 0.0291 0.0312
20:01-21:00, Mon., 09 Mar. 0.0336 0.0291 0.0313
19:01-20:00, Mon., 09 Mar. 0.0329 0.0289 0.0311
18:01-19:00, Mon., 09 Mar. 0.0335 0.0289 0.0313
17:01-18:00, Mon., 09 Mar. 0.0341 0.0291 0.0314
16:01-17:00, Mon., 09 Mar. 0.0345 0.0295 0.0317
15:01-16:00, Mon., 09 Mar. 0.0345 0.0287 0.0316
14:01-15:00, Mon., 09 Mar. 0.0344 0.0294 0.0318
13:01-14:00, Mon., 09 Mar. 0.0342 0.0302 0.0319
12:01-13:00, Mon., 09 Mar. 0.0338 0.0287 0.0317
11:01-12:00, Mon., 09 Mar. 0.0342 0.0294 0.0319
10:01-11:00, Mon., 09 Mar. 0.0340 0.0298 0.0313
09:01-10:00, Mon., 09 Mar. 0.0340 0.0292 0.0315
08:01-09:00, Mon., 09 Mar. 0.0336 0.0297 0.0318
07:01-08:00, Mon., 09 Mar. 0.0331 0.0282 0.0312
06:01-07:00, Mon., 09 Mar. 0.0338 0.0282 0.0314
05:01-06:00, Mon., 09 Mar. 0.0332 0.0290 0.0312
04:01-05:00, Mon., 09 Mar. 0.0341 0.0298 0.0315
03:01-04:00, Mon., 09 Mar. 0.0333 0.0294 0.0314
02:01-03:00, Mon., 09 Mar. 0.0347 0.0293 0.0314
01:01-02:00, Mon., 09 Mar. 0.0340 0.0294 0.0313
00:01-01:00, Mon., 09 Mar. 0.0335 0.0294 0.0313