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
20:01-21:00, Sun., 24 May. 0.0307 0.0262 0.0282
19:01-20:00, Sun., 24 May. 0.0300 0.0258 0.0280
18:01-19:00, Sun., 24 May. 0.0311 0.0259 0.0281
17:01-18:00, Sun., 24 May. 0.0297 0.0264 0.0279
16:01-17:00, Sun., 24 May. 0.0307 0.0256 0.0281
15:01-16:00, Sun., 24 May. 0.0305 0.0260 0.0282
14:01-15:00, Sun., 24 May. 0.0303 0.0256 0.0282
13:01-14:00, Sun., 24 May. 0.0311 0.0266 0.0285
12:01-13:00, Sun., 24 May. 0.0304 0.0265 0.0284
11:01-12:00, Sun., 24 May. 0.0303 0.0269 0.0284
10:01-11:00, Sun., 24 May. 0.0304 0.0263 0.0282
09:01-10:00, Sun., 24 May. 0.0308 0.0263 0.0283
08:01-09:00, Sun., 24 May. 0.0295 0.0260 0.0280
07:01-08:00, Sun., 24 May. 0.0307 0.0260 0.0281
06:01-07:00, Sun., 24 May. 0.0303 0.0256 0.0282
05:01-06:00, Sun., 24 May. 0.0302 0.0259 0.0279
04:01-05:00, Sun., 24 May. 0.0304 0.0256 0.0280
03:01-04:00, Sun., 24 May. 0.0305 0.0259 0.0282
02:01-03:00, Sun., 24 May. 0.0312 0.0259 0.0284
01:01-02:00, Sun., 24 May. 0.0305 0.0264 0.0282
00:01-01:00, Sun., 24 May. 0.0297 0.0260 0.0280
23:01-24:00, Sat., 23 May. 0.0306 0.0252 0.0280
22:01-23:00, Sat., 23 May. 0.0306 0.0256 0.0283
21:01-22:00, Sat., 23 May. 0.0311 0.0270 0.0288
20:01-21:00, Sat., 23 May. 0.0328 0.0273 0.0300
19:01-20:00, Sat., 23 May. 0.0308 0.0261 0.0281
18:01-19:00, Sat., 23 May. 0.0302 0.0253 0.0277
17:01-18:00, Sat., 23 May. 0.0307 0.0256 0.0277
16:01-17:00, Sat., 23 May. 0.0303 0.0252 0.0277
15:01-16:00, Sat., 23 May. 0.0298 0.0256 0.0278
14:01-15:00, Sat., 23 May. 0.0301 0.0254 0.0279
13:01-14:00, Sat., 23 May. 0.0301 0.0259 0.0278
12:01-13:00, Sat., 23 May. 0.0303 0.0256 0.0280
11:01-12:00, Sat., 23 May. 0.0301 0.0262 0.0279
10:01-11:00, Sat., 23 May. 0.0308 0.0260 0.0279
09:01-10:00, Sat., 23 May. 0.0296 0.0261 0.0279
08:01-09:00, Sat., 23 May. 0.0294 0.0259 0.0278
07:01-08:00, Sat., 23 May. 0.0305 0.0252 0.0277
06:01-07:00, Sat., 23 May. 0.0300 0.0257 0.0277
05:01-06:00, Sat., 23 May. 0.0295 0.0258 0.0277
04:01-05:00, Sat., 23 May. 0.0299 0.0256 0.0281
03:01-04:00, Sat., 23 May. 0.0296 0.0261 0.0279
02:01-03:00, Sat., 23 May. 0.0298 0.0264 0.0279
01:01-02:00, Sat., 23 May. 0.0307 0.0253 0.0278
00:01-01:00, Sat., 23 May. 0.0306 0.0263 0.0280
23:01-24:00, Fri., 22 May. 0.0296 0.0256 0.0276
22:01-23:00, Fri., 22 May. 0.0294 0.0258 0.0280
21:01-22:00, Fri., 22 May. 0.0305 0.0256 0.0280
20:01-21:00, Fri., 22 May. 0.0296 0.0252 0.0277
19:01-20:00, Fri., 22 May. 0.0297 0.0259 0.0276
18:01-19:00, Fri., 22 May. 0.0311 0.0252 0.0277
17:01-18:00, Fri., 22 May. 0.0316 0.0270 0.0290
16:01-17:00, Fri., 22 May. 0.0331 0.0280 0.0305
15:01-16:00, Fri., 22 May. 0.0345 0.0292 0.0317
14:01-15:00, Fri., 22 May. 0.0435 0.0315 0.0381
13:01-14:00, Fri., 22 May. 0.0469 0.0396 0.0433
12:01-13:00, Fri., 22 May. 0.0427 0.0353 0.0389
11:01-12:00, Fri., 22 May. 0.0378 0.0303 0.0335
10:01-11:00, Fri., 22 May. 0.0372 0.0304 0.0343
09:01-10:00, Fri., 22 May. 0.0446 0.0318 0.0375
08:01-09:00, Fri., 22 May. 0.0557 0.0423 0.0496
07:01-08:00, Fri., 22 May. 0.0546 0.0432 0.0504
06:01-07:00, Fri., 22 May. 0.0606 0.0454 0.0534
05:01-06:00, Fri., 22 May. 0.0568 0.0322 0.0469
04:01-05:00, Fri., 22 May. 0.0350 0.0298 0.0328
03:01-04:00, Fri., 22 May. 0.0455 0.0334 0.0390
02:01-03:00, Fri., 22 May. 0.0532 0.0420 0.0468
01:01-02:00, Fri., 22 May. 0.0504 0.0388 0.0446
00:01-01:00, Fri., 22 May. 0.0453 0.0357 0.0413
23:01-24:00, Thu., 21 May. 0.0391 0.0298 0.0349
22:01-23:00, Thu., 21 May. 0.0322 0.0276 0.0296
21:01-22:00, Thu., 21 May. 0.0309 0.0273 0.0292
20:01-21:00, Thu., 21 May. 0.0304 0.0273 0.0290
19:01-20:00, Thu., 21 May. 0.0315 0.0269 0.0291
18:01-19:00, Thu., 21 May. 0.0311 0.0270 0.0292
17:01-18:00, Thu., 21 May. 0.0322 0.0277 0.0302
16:01-17:00, Thu., 21 May. 0.0328 0.0279 0.0301
15:01-16:00, Thu., 21 May. 0.0355 0.0304 0.0332
14:01-15:00, Thu., 21 May. 0.0375 0.0329 0.0356
13:01-14:00, Thu., 21 May. 0.0377 0.0338 0.0358
12:01-13:00, Thu., 21 May. 0.0370 0.0304 0.0337
11:01-12:00, Thu., 21 May. 0.0346 0.0297 0.0322
10:01-11:00, Thu., 21 May. 0.0343 0.0285 0.0313
09:01-10:00, Thu., 21 May. 0.0331 0.0284 0.0307
08:01-09:00, Thu., 21 May. 0.0332 0.0275 0.0306
07:01-08:00, Thu., 21 May. 0.0327 0.0273 0.0303
06:01-07:00, Thu., 21 May. 0.0333 0.0283 0.0309
05:01-06:00, Thu., 21 May. 0.0326 0.0280 0.0303
04:01-05:00, Thu., 21 May. 0.0319 0.0273 0.0299
03:01-04:00, Thu., 21 May. 0.0315 0.0277 0.0297
02:01-03:00, Thu., 21 May. 0.0325 0.0278 0.0297
01:01-02:00, Thu., 21 May. 0.0316 0.0276 0.0297
00:01-01:00, Thu., 21 May. 0.0315 0.0277 0.0295
23:01-24:00, Wed., 20 May. 0.0325 0.0273 0.0297
22:01-23:00, Wed., 20 May. 0.0325 0.0276 0.0301
21:01-22:00, Wed., 20 May. 0.0320 0.0285 0.0300
20:01-21:00, Wed., 20 May. 0.0325 0.0280 0.0299
19:01-20:00, Wed., 20 May. 0.0324 0.0281 0.0301
18:01-19:00, Wed., 20 May. 0.0325 0.0278 0.0302
17:01-18:00, Wed., 20 May. 0.0326 0.0277 0.0305
16:01-17:00, Wed., 20 May. 0.0330 0.0282 0.0303
15:01-16:00, Wed., 20 May. 0.0323 0.0289 0.0306
14:01-15:00, Wed., 20 May. 0.0329 0.0275 0.0306
13:01-14:00, Wed., 20 May. 0.0329 0.0276 0.0302
12:01-13:00, Wed., 20 May. 0.0326 0.0276 0.0300
11:01-12:00, Wed., 20 May. 0.0334 0.0281 0.0306
10:01-11:00, Wed., 20 May. 0.0318 0.0281 0.0303
09:01-10:00, Wed., 20 May. 0.0330 0.0290 0.0306
08:01-09:00, Wed., 20 May. 0.0320 0.0273 0.0304
07:01-08:00, Wed., 20 May. 0.0318 0.0283 0.0302
06:01-07:00, Wed., 20 May. 0.0321 0.0280 0.0301
05:01-06:00, Wed., 20 May. 0.0327 0.0283 0.0302
04:01-05:00, Wed., 20 May. 0.0332 0.0283 0.0301
03:01-04:00, Wed., 20 May. 0.0320 0.0280 0.0302
02:01-03:00, Wed., 20 May. 0.0317 0.0284 0.0301
01:01-02:00, Wed., 20 May. 0.0329 0.0276 0.0296
00:01-01:00, Wed., 20 May. 0.0319 0.0277 0.0297
23:01-24:00, Tue., 19 May. 0.0320 0.0277 0.0299
22:01-23:00, Tue., 19 May. 0.0319 0.0279 0.0297
21:01-22:00, Tue., 19 May. 0.0318 0.0266 0.0296
20:01-21:00, Tue., 19 May. 0.0319 0.0280 0.0296
19:01-20:00, Tue., 19 May. 0.0314 0.0273 0.0297
18:01-19:00, Tue., 19 May. 0.0318 0.0277 0.0300
17:01-18:00, Tue., 19 May. 0.0322 0.0283 0.0300
16:01-17:00, Tue., 19 May. 0.0319 0.0283 0.0301
15:01-16:00, Tue., 19 May. 0.0325 0.0276 0.0302
14:01-15:00, Tue., 19 May. 0.0323 0.0281 0.0299
13:01-14:00, Tue., 19 May. 0.0318 0.0276 0.0299
12:01-13:00, Tue., 19 May. 0.0324 0.0283 0.0300
11:01-12:00, Tue., 19 May. 0.0328 0.0279 0.0299
10:01-11:00, Tue., 19 May. 0.0323 0.0282 0.0302
09:01-10:00, Tue., 19 May. 0.0330 0.0282 0.0304
08:01-09:00, Tue., 19 May. 0.0328 0.0277 0.0299
07:01-08:00, Tue., 19 May. 0.0318 0.0270 0.0295
06:01-07:00, Tue., 19 May. 0.0329 0.0276 0.0299
05:01-06:00, Tue., 19 May. 0.0323 0.0271 0.0300
04:01-05:00, Tue., 19 May. 0.0323 0.0270 0.0300
03:01-04:00, Tue., 19 May. 0.0316 0.0278 0.0298
02:01-03:00, Tue., 19 May. 0.0318 0.0283 0.0297
01:01-02:00, Tue., 19 May. 0.0326 0.0271 0.0300
00:01-01:00, Tue., 19 May. 0.0323 0.0280 0.0298
23:01-24:00, Mon., 18 May. 0.0322 0.0273 0.0298
22:01-23:00, Mon., 18 May. 0.0322 0.0279 0.0302
21:01-22:00, Mon., 18 May. 0.0324 0.0273 0.0295
20:01-21:00, Mon., 18 May. 0.0322 0.0274 0.0296
19:01-20:00, Mon., 18 May. 0.0320 0.0280 0.0298
18:01-19:00, Mon., 18 May. 0.0327 0.0276 0.0302
17:01-18:00, Mon., 18 May. 0.0320 0.0284 0.0304
16:01-17:00, Mon., 18 May. 0.0321 0.0280 0.0303
15:01-16:00, Mon., 18 May. 0.0322 0.0282 0.0302
14:01-15:00, Mon., 18 May. 0.0322 0.0283 0.0301
13:01-14:00, Mon., 18 May. 0.0331 0.0283 0.0303
12:01-13:00, Mon., 18 May. 0.0321 0.0267 0.0300
11:01-12:00, Mon., 18 May. 0.0326 0.0285 0.0305
10:01-11:00, Mon., 18 May. 0.0324 0.0287 0.0305
09:01-10:00, Mon., 18 May. 0.0326 0.0287 0.0306
08:01-09:00, Mon., 18 May. 0.0318 0.0281 0.0300
07:01-08:00, Mon., 18 May. 0.0321 0.0278 0.0298
06:01-07:00, Mon., 18 May. 0.0321 0.0275 0.0296
05:01-06:00, Mon., 18 May. 0.0322 0.0277 0.0297
04:01-05:00, Mon., 18 May. 0.0325 0.0276 0.0299
03:01-04:00, Mon., 18 May. 0.0327 0.0274 0.0299
02:01-03:00, Mon., 18 May. 0.0321 0.0287 0.0300
01:01-02:00, Mon., 18 May. 0.0324 0.0283 0.0304
00:01-01:00, Mon., 18 May. 0.0321 0.0284 0.0301
23:01-24:00, Sun., 17 May. 0.0322 0.0268 0.0301
22:01-23:00, Sun., 17 May. 0.0326 0.0277 0.0303
21:01-22:00, Sun., 17 May. 0.0322 0.0269 0.0298
20:01-21:00, Sun., 17 May. 0.0325 0.0270 0.0300
19:01-20:00, Sun., 17 May. 0.0318 0.0281 0.0303
18:01-19:00, Sun., 17 May. 0.0335 0.0287 0.0307
17:01-18:00, Sun., 17 May. 0.0329 0.0290 0.0308
16:01-17:00, Sun., 17 May. 0.0336 0.0292 0.0311
15:01-16:00, Sun., 17 May. 0.0331 0.0287 0.0307
14:01-15:00, Sun., 17 May. 0.0325 0.0289 0.0306
13:01-14:00, Sun., 17 May. 0.0330 0.0279 0.0307
12:01-13:00, Sun., 17 May. 0.0334 0.0294 0.0308
11:01-12:00, Sun., 17 May. 0.0327 0.0290 0.0311
10:01-11:00, Sun., 17 May. 0.0341 0.0288 0.0310
09:01-10:00, Sun., 17 May. 0.0332 0.0286 0.0310
08:01-09:00, Sun., 17 May. 0.0329 0.0283 0.0307
07:01-08:00, Sun., 17 May. 0.0325 0.0285 0.0307
06:01-07:00, Sun., 17 May. 0.0330 0.0290 0.0308
05:01-06:00, Sun., 17 May. 0.0336 0.0287 0.0305
04:01-05:00, Sun., 17 May. 0.0326 0.0282 0.0302
03:01-04:00, Sun., 17 May. 0.0326 0.0272 0.0296
02:01-03:00, Sun., 17 May. 0.0316 0.0277 0.0294
01:01-02:00, Sun., 17 May. 0.0321 0.0273 0.0295
00:01-01:00, Sun., 17 May. 0.0320 0.0263 0.0292
23:01-24:00, Sat., 16 May. 0.0318 0.0278 0.0295
22:01-23:00, Sat., 16 May. 0.0320 0.0271 0.0295
21:01-22:00, Sat., 16 May. 0.0311 0.0269 0.0292
20:01-21:00, Sat., 16 May. 0.0315 0.0273 0.0292
19:01-20:00, Sat., 16 May. 0.0322 0.0268 0.0291
18:01-19:00, Sat., 16 May. 0.0324 0.0273 0.0294
17:01-18:00, Sat., 16 May. 0.0324 0.0282 0.0301
16:01-17:00, Sat., 16 May. 0.0322 0.0278 0.0301
15:01-16:00, Sat., 16 May. 0.0338 0.0275 0.0300
14:01-15:00, Sat., 16 May. 0.0317 0.0284 0.0300
13:01-14:00, Sat., 16 May. 0.0319 0.0279 0.0299
12:01-13:00, Sat., 16 May. 0.0330 0.0276 0.0305
11:01-12:00, Sat., 16 May. 0.0332 0.0283 0.0303
10:01-11:00, Sat., 16 May. 0.0326 0.0278 0.0303
09:01-10:00, Sat., 16 May. 0.0317 0.0273 0.0295
08:01-09:00, Sat., 16 May. 0.0315 0.0275 0.0292
07:01-08:00, Sat., 16 May. 0.0308 0.0272 0.0290
06:01-07:00, Sat., 16 May. 0.0304 0.0270 0.0288
05:01-06:00, Sat., 16 May. 0.0317 0.0264 0.0292
04:01-05:00, Sat., 16 May. 0.0311 0.0266 0.0290
03:01-04:00, Sat., 16 May. 0.0321 0.0274 0.0295
02:01-03:00, Sat., 16 May. 0.0321 0.0277 0.0294
01:01-02:00, Sat., 16 May. 0.0321 0.0270 0.0296
00:01-01:00, Sat., 16 May. 0.0309 0.0273 0.0293
23:01-24:00, Fri., 15 May. 0.0313 0.0270 0.0293
22:01-23:00, Fri., 15 May. 0.0313 0.0263 0.0292
21:01-22:00, Fri., 15 May. 0.0311 0.0272 0.0293
20:01-21:00, Fri., 15 May. 0.0308 0.0276 0.0293
19:01-20:00, Fri., 15 May. 0.0318 0.0272 0.0291
18:01-19:00, Fri., 15 May. 0.0309 0.0275 0.0291
17:01-18:00, Fri., 15 May. 0.0318 0.0283 0.0299
16:01-17:00, Fri., 15 May. 0.0325 0.0282 0.0298
15:01-16:00, Fri., 15 May. 0.0322 0.0283 0.0299
14:01-15:00, Fri., 15 May. 0.0330 0.0278 0.0301
13:01-14:00, Fri., 15 May. 0.0323 0.0268 0.0298
12:01-13:00, Fri., 15 May. 0.0311 0.0266 0.0292
11:01-12:00, Fri., 15 May. 0.0326 0.0272 0.0289
10:01-11:00, Fri., 15 May. 0.0314 0.0272 0.0289
09:01-10:00, Fri., 15 May. 0.0312 0.0264 0.0286
08:01-09:00, Fri., 15 May. 0.0311 0.0269 0.0283
07:01-08:00, Fri., 15 May. 0.0318 0.0260 0.0287
06:01-07:00, Fri., 15 May. 0.0322 0.0265 0.0287
05:01-06:00, Fri., 15 May. 0.0322 0.0270 0.0290
04:01-05:00, Fri., 15 May. 0.0309 0.0269 0.0286
03:01-04:00, Fri., 15 May. 0.0308 0.0265 0.0285
02:01-03:00, Fri., 15 May. 0.0308 0.0269 0.0286
01:01-02:00, Fri., 15 May. 0.0314 0.0278 0.0293
00:01-01:00, Fri., 15 May. 0.0344 0.0281 0.0309
23:01-24:00, Thu., 14 May. 0.0431 0.0315 0.0366
22:01-23:00, Thu., 14 May. 0.0477 0.0402 0.0443
21:01-22:00, Thu., 14 May. 0.0415 0.0270 0.0332