Radiation doses in the air / Measurement results by the hour (Adachi)

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
11:01-12:00, Sat., 26 Apr. 0.0320 0.0275 0.0294
10:01-11:00, Sat., 26 Apr. 0.0317 0.0270 0.0292
09:01-10:00, Sat., 26 Apr. 0.0318 0.0269 0.0290
08:01-09:00, Sat., 26 Apr. 0.0308 0.0273 0.0289
07:01-08:00, Sat., 26 Apr. 0.0317 0.0265 0.0289
06:01-07:00, Sat., 26 Apr. 0.0314 0.0263 0.0289
05:01-06:00, Sat., 26 Apr. 0.0310 0.0270 0.0290
04:01-05:00, Sat., 26 Apr. 0.0308 0.0269 0.0287
03:01-04:00, Sat., 26 Apr. 0.0315 0.0265 0.0289
02:01-03:00, Sat., 26 Apr. 0.0321 0.0270 0.0291
01:01-02:00, Sat., 26 Apr. 0.0305 0.0267 0.0289
00:01-01:00, Sat., 26 Apr. 0.0315 0.0268 0.0294
23:01-24:00, Fri., 25 Apr. 0.0315 0.0273 0.0295
22:01-23:00, Fri., 25 Apr. 0.0308 0.0273 0.0291
21:01-22:00, Fri., 25 Apr. 0.0322 0.0271 0.0292
20:01-21:00, Fri., 25 Apr. 0.0311 0.0271 0.0291
19:01-20:00, Fri., 25 Apr. 0.0309 0.0270 0.0293
18:01-19:00, Fri., 25 Apr. 0.0308 0.0273 0.0291
17:01-18:00, Fri., 25 Apr. 0.0314 0.0274 0.0291
16:01-17:00, Fri., 25 Apr. 0.0311 0.0273 0.0292
15:01-16:00, Fri., 25 Apr. 0.0308 0.0271 0.0290
14:01-15:00, Fri., 25 Apr. 0.0312 0.0273 0.0289
13:01-14:00, Fri., 25 Apr. 0.0318 0.0271 0.0290
12:01-13:00, Fri., 25 Apr. 0.0312 0.0273 0.0293
11:01-12:00, Fri., 25 Apr. 0.0326 0.0273 0.0291
10:01-11:00, Fri., 25 Apr. 0.0314 0.0271 0.0293
09:01-10:00, Fri., 25 Apr. 0.0314 0.0271 0.0290
08:01-09:00, Fri., 25 Apr. 0.0310 0.0271 0.0289
07:01-08:00, Fri., 25 Apr. 0.0308 0.0266 0.0289
06:01-07:00, Fri., 25 Apr. 0.0318 0.0278 0.0293
05:01-06:00, Fri., 25 Apr. 0.0318 0.0270 0.0292
04:01-05:00, Fri., 25 Apr. 0.0314 0.0259 0.0292
03:01-04:00, Fri., 25 Apr. 0.0312 0.0273 0.0292
02:01-03:00, Fri., 25 Apr. 0.0315 0.0270 0.0294
01:01-02:00, Fri., 25 Apr. 0.0308 0.0265 0.0291
00:01-01:00, Fri., 25 Apr. 0.0306 0.0268 0.0288
23:01-24:00, Thu., 24 Apr. 0.0314 0.0270 0.0291
22:01-23:00, Thu., 24 Apr. 0.0307 0.0266 0.0290
21:01-22:00, Thu., 24 Apr. 0.0311 0.0274 0.0293
20:01-21:00, Thu., 24 Apr. 0.0308 0.0257 0.0289
19:01-20:00, Thu., 24 Apr. 0.0307 0.0270 0.0291
18:01-19:00, Thu., 24 Apr. 0.0314 0.0270 0.0290
17:01-18:00, Thu., 24 Apr. 0.0313 0.0269 0.0289
16:01-17:00, Thu., 24 Apr. 0.0318 0.0274 0.0294
15:01-16:00, Thu., 24 Apr. 0.0317 0.0274 0.0295
14:01-15:00, Thu., 24 Apr. 0.0322 0.0276 0.0296
13:01-14:00, Thu., 24 Apr. 0.0325 0.0270 0.0296
12:01-13:00, Thu., 24 Apr. 0.0321 0.0273 0.0296
11:01-12:00, Thu., 24 Apr. 0.0320 0.0279 0.0296
10:01-11:00, Thu., 24 Apr. 0.0309 0.0267 0.0293
09:01-10:00, Thu., 24 Apr. 0.0322 0.0268 0.0292
08:01-09:00, Thu., 24 Apr. 0.0315 0.0270 0.0289
07:01-08:00, Thu., 24 Apr. 0.0316 0.0264 0.0289
06:01-07:00, Thu., 24 Apr. 0.0311 0.0273 0.0292
05:01-06:00, Thu., 24 Apr. 0.0307 0.0270 0.0291
04:01-05:00, Thu., 24 Apr. 0.0314 0.0266 0.0293
03:01-04:00, Thu., 24 Apr. 0.0318 0.0267 0.0293
02:01-03:00, Thu., 24 Apr. 0.0308 0.0271 0.0290
01:01-02:00, Thu., 24 Apr. 0.0318 0.0274 0.0292
00:01-01:00, Thu., 24 Apr. 0.0311 0.0267 0.0289
23:01-24:00, Wed., 23 Apr. 0.0315 0.0273 0.0287
22:01-23:00, Wed., 23 Apr. 0.0311 0.0265 0.0287
21:01-22:00, Wed., 23 Apr. 0.0310 0.0261 0.0288
20:01-21:00, Wed., 23 Apr. 0.0308 0.0266 0.0285
19:01-20:00, Wed., 23 Apr. 0.0307 0.0265 0.0287
18:01-19:00, Wed., 23 Apr. 0.0307 0.0269 0.0290
17:01-18:00, Wed., 23 Apr. 0.0322 0.0280 0.0301
16:01-17:00, Wed., 23 Apr. 0.0349 0.0285 0.0322
15:01-16:00, Wed., 23 Apr. 0.0409 0.0321 0.0375
14:01-15:00, Wed., 23 Apr. 0.0382 0.0336 0.0359
13:01-14:00, Wed., 23 Apr. 0.0361 0.0316 0.0335
12:01-13:00, Wed., 23 Apr. 0.0372 0.0307 0.0335
11:01-12:00, Wed., 23 Apr. 0.0342 0.0304 0.0323
10:01-11:00, Wed., 23 Apr. 0.0336 0.0283 0.0311
09:01-10:00, Wed., 23 Apr. 0.0332 0.0281 0.0306
08:01-09:00, Wed., 23 Apr. 0.0321 0.0274 0.0295
07:01-08:00, Wed., 23 Apr. 0.0311 0.0266 0.0290
06:01-07:00, Wed., 23 Apr. 0.0323 0.0282 0.0305
05:01-06:00, Wed., 23 Apr. 0.0372 0.0305 0.0333
04:01-05:00, Wed., 23 Apr. 0.0374 0.0318 0.0348
03:01-04:00, Wed., 23 Apr. 0.0405 0.0332 0.0370
02:01-03:00, Wed., 23 Apr. 0.0413 0.0348 0.0382
01:01-02:00, Wed., 23 Apr. 0.0366 0.0276 0.0320
00:01-01:00, Wed., 23 Apr. 0.0316 0.0276 0.0295
23:01-24:00, Tue., 22 Apr. 0.0312 0.0267 0.0291
22:01-23:00, Tue., 22 Apr. 0.0318 0.0270 0.0294
21:01-22:00, Tue., 22 Apr. 0.0315 0.0273 0.0293
20:01-21:00, Tue., 22 Apr. 0.0317 0.0266 0.0292
19:01-20:00, Tue., 22 Apr. 0.0311 0.0274 0.0293
18:01-19:00, Tue., 22 Apr. 0.0315 0.0271 0.0292
17:01-18:00, Tue., 22 Apr. 0.0309 0.0275 0.0293
16:01-17:00, Tue., 22 Apr. 0.0314 0.0276 0.0294
15:01-16:00, Tue., 22 Apr. 0.0320 0.0275 0.0294
14:01-15:00, Tue., 22 Apr. 0.0319 0.0273 0.0293
13:01-14:00, Tue., 22 Apr. 0.0311 0.0277 0.0293
12:01-13:00, Tue., 22 Apr. 0.0312 0.0270 0.0291
11:01-12:00, Tue., 22 Apr. 0.0309 0.0264 0.0289
10:01-11:00, Tue., 22 Apr. 0.0321 0.0274 0.0291
09:01-10:00, Tue., 22 Apr. 0.0316 0.0277 0.0296
08:01-09:00, Tue., 22 Apr. 0.0318 0.0276 0.0298
07:01-08:00, Tue., 22 Apr. 0.0316 0.0274 0.0294
06:01-07:00, Tue., 22 Apr. 0.0311 0.0273 0.0296
05:01-06:00, Tue., 22 Apr. 0.0320 0.0273 0.0294
04:01-05:00, Tue., 22 Apr. 0.0319 0.0273 0.0292
03:01-04:00, Tue., 22 Apr. 0.0317 0.0271 0.0292
02:01-03:00, Tue., 22 Apr. 0.0309 0.0270 0.0291
01:01-02:00, Tue., 22 Apr. 0.0315 0.0276 0.0290
00:01-01:00, Tue., 22 Apr. 0.0312 0.0267 0.0289
23:01-24:00, Mon., 21 Apr. 0.0313 0.0265 0.0291
22:01-23:00, Mon., 21 Apr. 0.0314 0.0266 0.0291
21:01-22:00, Mon., 21 Apr. 0.0308 0.0266 0.0290
20:01-21:00, Mon., 21 Apr. 0.0326 0.0269 0.0293
19:01-20:00, Mon., 21 Apr. 0.0310 0.0276 0.0293
18:01-19:00, Mon., 21 Apr. 0.0311 0.0270 0.0293
17:01-18:00, Mon., 21 Apr. 0.0312 0.0250 0.0290
16:01-17:00, Mon., 21 Apr. 0.0321 0.0274 0.0298
15:01-16:00, Mon., 21 Apr. 0.0315 0.0277 0.0298
14:01-15:00, Mon., 21 Apr. 0.0322 0.0273 0.0301
13:01-14:00, Mon., 21 Apr. 0.0319 0.0275 0.0296
12:01-13:00, Mon., 21 Apr. 0.0322 0.0276 0.0298
11:01-12:00, Mon., 21 Apr. 0.0320 0.0280 0.0298
10:01-11:00, Mon., 21 Apr. 0.0312 0.0266 0.0291
09:01-10:00, Mon., 21 Apr. 0.0319 0.0275 0.0295
08:01-09:00, Mon., 21 Apr. 0.0315 0.0273 0.0291
07:01-08:00, Mon., 21 Apr. 0.0321 0.0271 0.0296
06:01-07:00, Mon., 21 Apr. 0.0315 0.0273 0.0292
05:01-06:00, Mon., 21 Apr. 0.0315 0.0271 0.0292
04:01-05:00, Mon., 21 Apr. 0.0320 0.0269 0.0293
03:01-04:00, Mon., 21 Apr. 0.0315 0.0276 0.0294
02:01-03:00, Mon., 21 Apr. 0.0311 0.0270 0.0296
01:01-02:00, Mon., 21 Apr. 0.0326 0.0273 0.0299
00:01-01:00, Mon., 21 Apr. 0.0333 0.0282 0.0309
23:01-24:00, Sun., 20 Apr. 0.0340 0.0273 0.0301
22:01-23:00, Sun., 20 Apr. 0.0315 0.0266 0.0293
21:01-22:00, Sun., 20 Apr. 0.0312 0.0270 0.0293
20:01-21:00, Sun., 20 Apr. 0.0318 0.0273 0.0295
19:01-20:00, Sun., 20 Apr. 0.0310 0.0270 0.0291
18:01-19:00, Sun., 20 Apr. 0.0313 0.0268 0.0291
17:01-18:00, Sun., 20 Apr. 0.0313 0.0250 0.0286
16:01-17:00, Sun., 20 Apr. 0.0308 0.0273 0.0289
15:01-16:00, Sun., 20 Apr. 0.0311 0.0276 0.0293
14:01-15:00, Sun., 20 Apr. 0.0312 0.0265 0.0290
13:01-14:00, Sun., 20 Apr. 0.0308 0.0273 0.0290
12:01-13:00, Sun., 20 Apr. 0.0308 0.0267 0.0290
11:01-12:00, Sun., 20 Apr. 0.0308 0.0268 0.0286
10:01-11:00, Sun., 20 Apr. 0.0306 0.0270 0.0289
09:01-10:00, Sun., 20 Apr. 0.0308 0.0277 0.0294
08:01-09:00, Sun., 20 Apr. 0.0311 0.0260 0.0291
07:01-08:00, Sun., 20 Apr. 0.0314 0.0268 0.0292
06:01-07:00, Sun., 20 Apr. 0.0316 0.0273 0.0291
05:01-06:00, Sun., 20 Apr. 0.0312 0.0270 0.0293
04:01-05:00, Sun., 20 Apr. 0.0314 0.0270 0.0293
03:01-04:00, Sun., 20 Apr. 0.0313 0.0270 0.0293
02:01-03:00, Sun., 20 Apr. 0.0313 0.0269 0.0291
01:01-02:00, Sun., 20 Apr. 0.0312 0.0263 0.0292
00:01-01:00, Sun., 20 Apr. 0.0315 0.0274 0.0293
23:01-24:00, Sat., 19 Apr. 0.0320 0.0278 0.0294
22:01-23:00, Sat., 19 Apr. 0.0321 0.0268 0.0293
21:01-22:00, Sat., 19 Apr. 0.0317 0.0274 0.0293
20:01-21:00, Sat., 19 Apr. 0.0319 0.0268 0.0297
19:01-20:00, Sat., 19 Apr. 0.0315 0.0263 0.0291
18:01-19:00, Sat., 19 Apr. 0.0318 0.0269 0.0294
17:01-18:00, Sat., 19 Apr. 0.0320 0.0276 0.0295
16:01-17:00, Sat., 19 Apr. 0.0329 0.0274 0.0300
15:01-16:00, Sat., 19 Apr. 0.0337 0.0271 0.0297
14:01-15:00, Sat., 19 Apr. 0.0326 0.0274 0.0298
13:01-14:00, Sat., 19 Apr. 0.0318 0.0270 0.0298
12:01-13:00, Sat., 19 Apr. 0.0325 0.0269 0.0297
11:01-12:00, Sat., 19 Apr. 0.0320 0.0276 0.0298
10:01-11:00, Sat., 19 Apr. 0.0322 0.0276 0.0298
09:01-10:00, Sat., 19 Apr. 0.0323 0.0279 0.0302
08:01-09:00, Sat., 19 Apr. 0.0327 0.0276 0.0306
07:01-08:00, Sat., 19 Apr. 0.0322 0.0284 0.0301
06:01-07:00, Sat., 19 Apr. 0.0321 0.0278 0.0297
05:01-06:00, Sat., 19 Apr. 0.0318 0.0282 0.0297
04:01-05:00, Sat., 19 Apr. 0.0315 0.0275 0.0292
03:01-04:00, Sat., 19 Apr. 0.0322 0.0273 0.0292
02:01-03:00, Sat., 19 Apr. 0.0319 0.0276 0.0293
01:01-02:00, Sat., 19 Apr. 0.0325 0.0277 0.0295
00:01-01:00, Sat., 19 Apr. 0.0310 0.0272 0.0293
23:01-24:00, Fri., 18 Apr. 0.0318 0.0276 0.0294
22:01-23:00, Fri., 18 Apr. 0.0313 0.0266 0.0290
21:01-22:00, Fri., 18 Apr. 0.0314 0.0268 0.0290
20:01-21:00, Fri., 18 Apr. 0.0310 0.0267 0.0289
19:01-20:00, Fri., 18 Apr. 0.0311 0.0266 0.0290
18:01-19:00, Fri., 18 Apr. 0.0309 0.0266 0.0289
17:01-18:00, Fri., 18 Apr. 0.0303 0.0264 0.0287
16:01-17:00, Fri., 18 Apr. 0.0308 0.0270 0.0290
15:01-16:00, Fri., 18 Apr. 0.0315 0.0271 0.0294
14:01-15:00, Fri., 18 Apr. 0.0322 0.0272 0.0297
13:01-14:00, Fri., 18 Apr. 0.0316 0.0276 0.0294
12:01-13:00, Fri., 18 Apr. 0.0315 0.0273 0.0295
11:01-12:00, Fri., 18 Apr. 0.0319 0.0280 0.0297
10:01-11:00, Fri., 18 Apr. 0.0322 0.0282 0.0301
09:01-10:00, Fri., 18 Apr. 0.0325 0.0279 0.0298
08:01-09:00, Fri., 18 Apr. 0.0319 0.0278 0.0300
07:01-08:00, Fri., 18 Apr. 0.0317 0.0268 0.0298
06:01-07:00, Fri., 18 Apr. 0.0325 0.0270 0.0301
05:01-06:00, Fri., 18 Apr. 0.0322 0.0283 0.0302
04:01-05:00, Fri., 18 Apr. 0.0322 0.0269 0.0298
03:01-04:00, Fri., 18 Apr. 0.0323 0.0274 0.0298
02:01-03:00, Fri., 18 Apr. 0.0311 0.0255 0.0296
01:01-02:00, Fri., 18 Apr. 0.0323 0.0273 0.0295
00:01-01:00, Fri., 18 Apr. 0.0311 0.0268 0.0289
23:01-24:00, Thu., 17 Apr. 0.0308 0.0264 0.0289
22:01-23:00, Thu., 17 Apr. 0.0307 0.0270 0.0287
21:01-22:00, Thu., 17 Apr. 0.0312 0.0266 0.0289
20:01-21:00, Thu., 17 Apr. 0.0308 0.0263 0.0289
19:01-20:00, Thu., 17 Apr. 0.0319 0.0274 0.0293
18:01-19:00, Thu., 17 Apr. 0.0304 0.0270 0.0287
17:01-18:00, Thu., 17 Apr. 0.0313 0.0275 0.0294
16:01-17:00, Thu., 17 Apr. 0.0322 0.0277 0.0297
15:01-16:00, Thu., 17 Apr. 0.0325 0.0276 0.0298
14:01-15:00, Thu., 17 Apr. 0.0321 0.0273 0.0294
13:01-14:00, Thu., 17 Apr. 0.0320 0.0276 0.0297
12:01-13:00, Thu., 17 Apr. 0.0314 0.0272 0.0293
11:01-12:00, Thu., 17 Apr. 0.0311 0.0273 0.0289
10:01-11:00, Thu., 17 Apr. 0.0321 0.0276 0.0294
09:01-10:00, Thu., 17 Apr. 0.0318 0.0266 0.0293
08:01-09:00, Thu., 17 Apr. 0.0320 0.0276 0.0294
07:01-08:00, Thu., 17 Apr. 0.0314 0.0280 0.0296
06:01-07:00, Thu., 17 Apr. 0.0315 0.0270 0.0294
05:01-06:00, Thu., 17 Apr. 0.0311 0.0270 0.0291
04:01-05:00, Thu., 17 Apr. 0.0311 0.0267 0.0288
03:01-04:00, Thu., 17 Apr. 0.0317 0.0264 0.0287
02:01-03:00, Thu., 17 Apr. 0.0308 0.0267 0.0287
01:01-02:00, Thu., 17 Apr. 0.0308 0.0269 0.0285
00:01-01:00, Thu., 17 Apr. 0.0302 0.0263 0.0285
23:01-24:00, Wed., 16 Apr. 0.0304 0.0259 0.0280
22:01-23:00, Wed., 16 Apr. 0.0303 0.0264 0.0284
21:01-22:00, Wed., 16 Apr. 0.0308 0.0255 0.0284
20:01-21:00, Wed., 16 Apr. 0.0304 0.0266 0.0287
19:01-20:00, Wed., 16 Apr. 0.0306 0.0267 0.0286
18:01-19:00, Wed., 16 Apr. 0.0316 0.0268 0.0288
17:01-18:00, Wed., 16 Apr. 0.0316 0.0270 0.0291
16:01-17:00, Wed., 16 Apr. 0.0311 0.0267 0.0292
15:01-16:00, Wed., 16 Apr. 0.0314 0.0273 0.0293
14:01-15:00, Wed., 16 Apr. 0.0315 0.0272 0.0292
13:01-14:00, Wed., 16 Apr. 0.0312 0.0266 0.0290
12:01-13:00, Wed., 16 Apr. 0.0315 0.0269 0.0290