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
22:01-23:00, Fri., 29 May. 0.0318 0.0269 0.0294
21:01-22:00, Fri., 29 May. 0.0317 0.0277 0.0296
20:01-21:00, Fri., 29 May. 0.0314 0.0282 0.0298
19:01-20:00, Fri., 29 May. 0.0321 0.0273 0.0299
18:01-19:00, Fri., 29 May. 0.0326 0.0276 0.0301
17:01-18:00, Fri., 29 May. 0.0325 0.0288 0.0304
16:01-17:00, Fri., 29 May. 0.0324 0.0273 0.0302
15:01-16:00, Fri., 29 May. 0.0324 0.0276 0.0302
14:01-15:00, Fri., 29 May. 0.0327 0.0274 0.0304
13:01-14:00, Fri., 29 May. 0.0325 0.0288 0.0305
12:01-13:00, Fri., 29 May. 0.0322 0.0282 0.0301
11:01-12:00, Fri., 29 May. 0.0326 0.0283 0.0303
10:01-11:00, Fri., 29 May. 0.0325 0.0281 0.0302
09:01-10:00, Fri., 29 May. 0.0318 0.0279 0.0301
08:01-09:00, Fri., 29 May. 0.0325 0.0280 0.0304
07:01-08:00, Fri., 29 May. 0.0325 0.0285 0.0306
06:01-07:00, Fri., 29 May. 0.0326 0.0272 0.0301
05:01-06:00, Fri., 29 May. 0.0322 0.0279 0.0298
04:01-05:00, Fri., 29 May. 0.0324 0.0276 0.0293
03:01-04:00, Fri., 29 May. 0.0313 0.0269 0.0293
02:01-03:00, Fri., 29 May. 0.0318 0.0270 0.0291
01:01-02:00, Fri., 29 May. 0.0308 0.0272 0.0292
00:01-01:00, Fri., 29 May. 0.0320 0.0265 0.0290
23:01-24:00, Thu., 28 May. 0.0311 0.0274 0.0291
22:01-23:00, Thu., 28 May. 0.0315 0.0272 0.0292
21:01-22:00, Thu., 28 May. 0.0314 0.0271 0.0292
20:01-21:00, Thu., 28 May. 0.0318 0.0273 0.0296
19:01-20:00, Thu., 28 May. 0.0312 0.0276 0.0293
18:01-19:00, Thu., 28 May. 0.0315 0.0269 0.0293
17:01-18:00, Thu., 28 May. 0.0322 0.0273 0.0296
16:01-17:00, Thu., 28 May. 0.0325 0.0276 0.0296
15:01-16:00, Thu., 28 May. 0.0325 0.0276 0.0295
14:01-15:00, Thu., 28 May. 0.0315 0.0271 0.0293
13:01-14:00, Thu., 28 May. 0.0311 0.0268 0.0294
12:01-13:00, Thu., 28 May. 0.0317 0.0266 0.0295
11:01-12:00, Thu., 28 May. 0.0315 0.0270 0.0294
10:01-11:00, Thu., 28 May. 0.0312 0.0270 0.0291
09:01-10:00, Thu., 28 May. 0.0313 0.0270 0.0291
08:01-09:00, Thu., 28 May. 0.0322 0.0273 0.0293
07:01-08:00, Thu., 28 May. 0.0312 0.0256 0.0285
06:01-07:00, Thu., 28 May. 0.0307 0.0259 0.0285
05:01-06:00, Thu., 28 May. 0.0310 0.0266 0.0285
04:01-05:00, Thu., 28 May. 0.0310 0.0269 0.0287
03:01-04:00, Thu., 28 May. 0.0304 0.0252 0.0285
02:01-03:00, Thu., 28 May. 0.0308 0.0259 0.0285
01:01-02:00, Thu., 28 May. 0.0308 0.0270 0.0287
00:01-01:00, Thu., 28 May. 0.0306 0.0264 0.0286
23:01-24:00, Wed., 27 May. 0.0308 0.0269 0.0288
22:01-23:00, Wed., 27 May. 0.0307 0.0266 0.0285
21:01-22:00, Wed., 27 May. 0.0311 0.0270 0.0289
20:01-21:00, Wed., 27 May. 0.0318 0.0265 0.0291
19:01-20:00, Wed., 27 May. 0.0312 0.0273 0.0292
18:01-19:00, Wed., 27 May. 0.0321 0.0273 0.0292
17:01-18:00, Wed., 27 May. 0.0311 0.0273 0.0290
16:01-17:00, Wed., 27 May. 0.0321 0.0271 0.0294
15:01-16:00, Wed., 27 May. 0.0322 0.0270 0.0290
14:01-15:00, Wed., 27 May. 0.0312 0.0270 0.0291
13:01-14:00, Wed., 27 May. 0.0318 0.0270 0.0291
12:01-13:00, Wed., 27 May. 0.0318 0.0264 0.0291
11:01-12:00, Wed., 27 May. 0.0314 0.0273 0.0291
10:01-11:00, Wed., 27 May. 0.0310 0.0274 0.0292
09:01-10:00, Wed., 27 May. 0.0311 0.0269 0.0286
08:01-09:00, Wed., 27 May. 0.0309 0.0257 0.0282
07:01-08:00, Wed., 27 May. 0.0311 0.0263 0.0285
06:01-07:00, Wed., 27 May. 0.0312 0.0263 0.0285
05:01-06:00, Wed., 27 May. 0.0311 0.0270 0.0288
04:01-05:00, Wed., 27 May. 0.0304 0.0269 0.0288
03:01-04:00, Wed., 27 May. 0.0312 0.0270 0.0286
02:01-03:00, Wed., 27 May. 0.0310 0.0273 0.0288
01:01-02:00, Wed., 27 May. 0.0310 0.0259 0.0287
00:01-01:00, Wed., 27 May. 0.0311 0.0267 0.0287
23:01-24:00, Tue., 26 May. 0.0311 0.0245 0.0285
22:01-23:00, Tue., 26 May. 0.0304 0.0260 0.0287
21:01-22:00, Tue., 26 May. 0.0305 0.0268 0.0286
20:01-21:00, Tue., 26 May. 0.0307 0.0263 0.0283
19:01-20:00, Tue., 26 May. 0.0307 0.0265 0.0284
18:01-19:00, Tue., 26 May. 0.0311 0.0267 0.0289
17:01-18:00, Tue., 26 May. 0.0316 0.0274 0.0292
16:01-17:00, Tue., 26 May. 0.0308 0.0265 0.0291
15:01-16:00, Tue., 26 May. 0.0310 0.0263 0.0291
14:01-15:00, Tue., 26 May. 0.0314 0.0274 0.0292
13:01-14:00, Tue., 26 May. 0.0314 0.0270 0.0290
12:01-13:00, Tue., 26 May. 0.0313 0.0272 0.0292
11:01-12:00, Tue., 26 May. 0.0308 0.0273 0.0290
10:01-11:00, Tue., 26 May. 0.0304 0.0264 0.0289
09:01-10:00, Tue., 26 May. 0.0303 0.0266 0.0282
08:01-09:00, Tue., 26 May. 0.0305 0.0259 0.0282
07:01-08:00, Tue., 26 May. 0.0300 0.0263 0.0279
06:01-07:00, Tue., 26 May. 0.0313 0.0265 0.0283
05:01-06:00, Tue., 26 May. 0.0304 0.0262 0.0284
04:01-05:00, Tue., 26 May. 0.0315 0.0253 0.0282
03:01-04:00, Tue., 26 May. 0.0308 0.0261 0.0281
02:01-03:00, Tue., 26 May. 0.0308 0.0265 0.0280
01:01-02:00, Tue., 26 May. 0.0297 0.0255 0.0277
00:01-01:00, Tue., 26 May. 0.0309 0.0266 0.0282
23:01-24:00, Mon., 25 May. 0.0299 0.0265 0.0283
22:01-23:00, Mon., 25 May. 0.0308 0.0249 0.0284
21:01-22:00, Mon., 25 May. 0.0299 0.0267 0.0282
20:01-21:00, Mon., 25 May. 0.0304 0.0263 0.0280
19:01-20:00, Mon., 25 May. 0.0299 0.0268 0.0283
18:01-19:00, Mon., 25 May. 0.0311 0.0270 0.0286
17:01-18:00, Mon., 25 May. 0.0311 0.0266 0.0289
16:01-17:00, Mon., 25 May. 0.0311 0.0266 0.0287
15:01-16:00, Mon., 25 May. 0.0309 0.0267 0.0289
14:01-15:00, Mon., 25 May. 0.0315 0.0275 0.0291
13:01-14:00, Mon., 25 May. 0.0319 0.0270 0.0286
12:01-13:00, Mon., 25 May. 0.0311 0.0268 0.0287
11:01-12:00, Mon., 25 May. 0.0309 0.0270 0.0286
10:01-11:00, Mon., 25 May. 0.0308 0.0263 0.0285
09:01-10:00, Mon., 25 May. 0.0306 0.0263 0.0285
08:01-09:00, Mon., 25 May. 0.0296 0.0260 0.0281
07:01-08:00, Mon., 25 May. 0.0308 0.0261 0.0284
06:01-07:00, Mon., 25 May. 0.0308 0.0266 0.0285
05:01-06:00, Mon., 25 May. 0.0306 0.0257 0.0285
04:01-05:00, Mon., 25 May. 0.0311 0.0266 0.0286
03:01-04:00, Mon., 25 May. 0.0298 0.0260 0.0281
02:01-03:00, Mon., 25 May. 0.0308 0.0256 0.0284
01:01-02:00, Mon., 25 May. 0.0302 0.0268 0.0284
00:01-01:00, Mon., 25 May. 0.0301 0.0263 0.0283
23:01-24:00, Sun., 24 May. 0.0304 0.0266 0.0283
22:01-23:00, Sun., 24 May. 0.0302 0.0258 0.0279
21:01-22:00, Sun., 24 May. 0.0316 0.0267 0.0283
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