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
07:01-08:00, Thu., 23 May. 0.0308 0.0263 0.0289
06:01-07:00, Thu., 23 May. 0.0311 0.0254 0.0286
05:01-06:00, Thu., 23 May. 0.0305 0.0266 0.0284
04:01-05:00, Thu., 23 May. 0.0305 0.0263 0.0284
03:01-04:00, Thu., 23 May. 0.0309 0.0263 0.0285
02:01-03:00, Thu., 23 May. 0.0301 0.0267 0.0285
01:01-02:00, Thu., 23 May. 0.0310 0.0272 0.0287
00:01-01:00, Thu., 23 May. 0.0304 0.0270 0.0288
23:01-24:00, Wed., 22 May. 0.0314 0.0265 0.0285
22:01-23:00, Wed., 22 May. 0.0313 0.0263 0.0288
21:01-22:00, Wed., 22 May. 0.0307 0.0265 0.0289
20:01-21:00, Wed., 22 May. 0.0309 0.0276 0.0292
19:01-20:00, Wed., 22 May. 0.0314 0.0263 0.0286
18:01-19:00, Wed., 22 May. 0.0317 0.0263 0.0286
17:01-18:00, Wed., 22 May. 0.0313 0.0264 0.0286
16:01-17:00, Wed., 22 May. 0.0312 0.0262 0.0289
15:01-16:00, Wed., 22 May. 0.0311 0.0266 0.0290
14:01-15:00, Wed., 22 May. 0.0315 0.0266 0.0291
13:01-14:00, Wed., 22 May. 0.0319 0.0271 0.0291
12:01-13:00, Wed., 22 May. 0.0314 0.0267 0.0291
11:01-12:00, Wed., 22 May. 0.0308 0.0274 0.0289
10:01-11:00, Wed., 22 May. 0.0299 0.0259 0.0285
09:01-10:00, Wed., 22 May. 0.0307 0.0267 0.0283
08:01-09:00, Wed., 22 May. 0.0308 0.0264 0.0285
07:01-08:00, Wed., 22 May. 0.0305 0.0258 0.0283
06:01-07:00, Wed., 22 May. 0.0309 0.0266 0.0284
05:01-06:00, Wed., 22 May. 0.0306 0.0265 0.0285
04:01-05:00, Wed., 22 May. 0.0300 0.0262 0.0284
03:01-04:00, Wed., 22 May. 0.0311 0.0264 0.0288
02:01-03:00, Wed., 22 May. 0.0303 0.0266 0.0285
01:01-02:00, Wed., 22 May. 0.0307 0.0266 0.0286
00:01-01:00, Wed., 22 May. 0.0324 0.0270 0.0291
23:01-24:00, Tue., 21 May. 0.0313 0.0273 0.0290
22:01-23:00, Tue., 21 May. 0.0318 0.0272 0.0295
21:01-22:00, Tue., 21 May. 0.0330 0.0289 0.0311
20:01-21:00, Tue., 21 May. 0.0327 0.0263 0.0294
19:01-20:00, Tue., 21 May. 0.0297 0.0259 0.0283
18:01-19:00, Tue., 21 May. 0.0311 0.0270 0.0287
17:01-18:00, Tue., 21 May. 0.0311 0.0268 0.0290
16:01-17:00, Tue., 21 May. 0.0313 0.0273 0.0293
15:01-16:00, Tue., 21 May. 0.0319 0.0276 0.0296
14:01-15:00, Tue., 21 May. 0.0312 0.0274 0.0295
13:01-14:00, Tue., 21 May. 0.0318 0.0278 0.0297
12:01-13:00, Tue., 21 May. 0.0318 0.0276 0.0297
11:01-12:00, Tue., 21 May. 0.0325 0.0273 0.0297
10:01-11:00, Tue., 21 May. 0.0329 0.0287 0.0302
09:01-10:00, Tue., 21 May. 0.0322 0.0276 0.0298
08:01-09:00, Tue., 21 May. 0.0312 0.0272 0.0293
07:01-08:00, Tue., 21 May. 0.0318 0.0268 0.0296
06:01-07:00, Tue., 21 May. 0.0319 0.0281 0.0299
05:01-06:00, Tue., 21 May. 0.0318 0.0270 0.0298
04:01-05:00, Tue., 21 May. 0.0319 0.0276 0.0294
03:01-04:00, Tue., 21 May. 0.0315 0.0273 0.0293
02:01-03:00, Tue., 21 May. 0.0322 0.0275 0.0295
01:01-02:00, Tue., 21 May. 0.0312 0.0271 0.0291
00:01-01:00, Tue., 21 May. 0.0311 0.0270 0.0291
23:01-24:00, Mon., 20 May. 0.0309 0.0270 0.0289
22:01-23:00, Mon., 20 May. 0.0315 0.0266 0.0289
21:01-22:00, Mon., 20 May. 0.0311 0.0270 0.0287
20:01-21:00, Mon., 20 May. 0.0312 0.0264 0.0286
19:01-20:00, Mon., 20 May. 0.0304 0.0269 0.0285
18:01-19:00, Mon., 20 May. 0.0311 0.0256 0.0283
17:01-18:00, Mon., 20 May. 0.0308 0.0259 0.0282
16:01-17:00, Mon., 20 May. 0.0311 0.0255 0.0282
15:01-16:00, Mon., 20 May. 0.0312 0.0264 0.0283
14:01-15:00, Mon., 20 May. 0.0309 0.0266 0.0285
13:01-14:00, Mon., 20 May. 0.0308 0.0255 0.0283
12:01-13:00, Mon., 20 May. 0.0300 0.0266 0.0281
11:01-12:00, Mon., 20 May. 0.0308 0.0264 0.0285
10:01-11:00, Mon., 20 May. 0.0312 0.0270 0.0289
09:01-10:00, Mon., 20 May. 0.0313 0.0270 0.0295
08:01-09:00, Mon., 20 May. 0.0333 0.0276 0.0306
07:01-08:00, Mon., 20 May. 0.0363 0.0307 0.0327
06:01-07:00, Mon., 20 May. 0.0363 0.0310 0.0339
05:01-06:00, Mon., 20 May. 0.0344 0.0300 0.0319
04:01-05:00, Mon., 20 May. 0.0356 0.0291 0.0317
03:01-04:00, Mon., 20 May. 0.0342 0.0291 0.0312
02:01-03:00, Mon., 20 May. 0.0329 0.0286 0.0310
01:01-02:00, Mon., 20 May. 0.0326 0.0283 0.0303
00:01-01:00, Mon., 20 May. 0.0318 0.0280 0.0298
23:01-24:00, Sun., 19 May. 0.0322 0.0278 0.0297
22:01-23:00, Sun., 19 May. 0.0312 0.0276 0.0295
21:01-22:00, Sun., 19 May. 0.0322 0.0277 0.0298
20:01-21:00, Sun., 19 May. 0.0326 0.0274 0.0294
19:01-20:00, Sun., 19 May. 0.0311 0.0274 0.0292
18:01-19:00, Sun., 19 May. 0.0311 0.0267 0.0290
17:01-18:00, Sun., 19 May. 0.0314 0.0275 0.0296
16:01-17:00, Sun., 19 May. 0.0322 0.0267 0.0296
15:01-16:00, Sun., 19 May. 0.0323 0.0284 0.0300
14:01-15:00, Sun., 19 May. 0.0325 0.0279 0.0299
13:01-14:00, Sun., 19 May. 0.0331 0.0275 0.0303
12:01-13:00, Sun., 19 May. 0.0324 0.0277 0.0298
11:01-12:00, Sun., 19 May. 0.0326 0.0276 0.0298
10:01-11:00, Sun., 19 May. 0.0315 0.0271 0.0296
09:01-10:00, Sun., 19 May. 0.0311 0.0274 0.0294
08:01-09:00, Sun., 19 May. 0.0318 0.0270 0.0298
07:01-08:00, Sun., 19 May. 0.0319 0.0280 0.0300
06:01-07:00, Sun., 19 May. 0.0318 0.0270 0.0297
05:01-06:00, Sun., 19 May. 0.0323 0.0283 0.0299
04:01-05:00, Sun., 19 May. 0.0318 0.0277 0.0296
03:01-04:00, Sun., 19 May. 0.0315 0.0267 0.0294
02:01-03:00, Sun., 19 May. 0.0312 0.0270 0.0293
01:01-02:00, Sun., 19 May. 0.0308 0.0270 0.0290
00:01-01:00, Sun., 19 May. 0.0315 0.0270 0.0292
23:01-24:00, Sat., 18 May. 0.0311 0.0273 0.0293
22:01-23:00, Sat., 18 May. 0.0315 0.0267 0.0292
21:01-22:00, Sat., 18 May. 0.0319 0.0270 0.0289
20:01-21:00, Sat., 18 May. 0.0309 0.0266 0.0286
19:01-20:00, Sat., 18 May. 0.0315 0.0261 0.0293
18:01-19:00, Sat., 18 May. 0.0323 0.0270 0.0297
17:01-18:00, Sat., 18 May. 0.0323 0.0278 0.0297
16:01-17:00, Sat., 18 May. 0.0322 0.0282 0.0300
15:01-16:00, Sat., 18 May. 0.0320 0.0273 0.0297
14:01-15:00, Sat., 18 May. 0.0325 0.0276 0.0298
13:01-14:00, Sat., 18 May. 0.0322 0.0273 0.0296
12:01-13:00, Sat., 18 May. 0.0311 0.0274 0.0293
11:01-12:00, Sat., 18 May. 0.0317 0.0281 0.0298
10:01-11:00, Sat., 18 May. 0.0325 0.0277 0.0299
09:01-10:00, Sat., 18 May. 0.0329 0.0276 0.0295
08:01-09:00, Sat., 18 May. 0.0325 0.0272 0.0298
07:01-08:00, Sat., 18 May. 0.0315 0.0270 0.0297
06:01-07:00, Sat., 18 May. 0.0322 0.0275 0.0297
05:01-06:00, Sat., 18 May. 0.0317 0.0278 0.0296
04:01-05:00, Sat., 18 May. 0.0322 0.0276 0.0296
03:01-04:00, Sat., 18 May. 0.0321 0.0276 0.0293
02:01-03:00, Sat., 18 May. 0.0311 0.0272 0.0292
01:01-02:00, Sat., 18 May. 0.0314 0.0270 0.0291
00:01-01:00, Sat., 18 May. 0.0321 0.0275 0.0295
23:01-24:00, Fri., 17 May. 0.0318 0.0270 0.0293
22:01-23:00, Fri., 17 May. 0.0316 0.0267 0.0292
21:01-22:00, Fri., 17 May. 0.0321 0.0274 0.0290
20:01-21:00, Fri., 17 May. 0.0315 0.0272 0.0291
19:01-20:00, Fri., 17 May. 0.0311 0.0266 0.0289
18:01-19:00, Fri., 17 May. 0.0311 0.0270 0.0292
17:01-18:00, Fri., 17 May. 0.0327 0.0274 0.0296
16:01-17:00, Fri., 17 May. 0.0315 0.0270 0.0295
15:01-16:00, Fri., 17 May. 0.0318 0.0270 0.0295
14:01-15:00, Fri., 17 May. 0.0317 0.0276 0.0295
13:01-14:00, Fri., 17 May. 0.0311 0.0263 0.0293
12:01-13:00, Fri., 17 May. 0.0319 0.0273 0.0293
11:01-12:00, Fri., 17 May. 0.0315 0.0269 0.0292
10:01-11:00, Fri., 17 May. 0.0315 0.0266 0.0290
09:01-10:00, Fri., 17 May. 0.0311 0.0266 0.0286
08:01-09:00, Fri., 17 May. 0.0311 0.0259 0.0287
07:01-08:00, Fri., 17 May. 0.0305 0.0269 0.0289
06:01-07:00, Fri., 17 May. 0.0315 0.0270 0.0290
05:01-06:00, Fri., 17 May. 0.0308 0.0266 0.0289
04:01-05:00, Fri., 17 May. 0.0307 0.0267 0.0289
03:01-04:00, Fri., 17 May. 0.0308 0.0268 0.0287
02:01-03:00, Fri., 17 May. 0.0308 0.0268 0.0288
01:01-02:00, Fri., 17 May. 0.0304 0.0269 0.0287
00:01-01:00, Fri., 17 May. 0.0312 0.0267 0.0289
23:01-24:00, Thu., 16 May. 0.0318 0.0276 0.0292
22:01-23:00, Thu., 16 May. 0.0308 0.0265 0.0287
21:01-22:00, Thu., 16 May. 0.0310 0.0266 0.0287
20:01-21:00, Thu., 16 May. 0.0315 0.0266 0.0289
19:01-20:00, Thu., 16 May. 0.0308 0.0266 0.0287
18:01-19:00, Thu., 16 May. 0.0311 0.0270 0.0287
17:01-18:00, Thu., 16 May. 0.0318 0.0266 0.0288
16:01-17:00, Thu., 16 May. 0.0311 0.0268 0.0290
15:01-16:00, Thu., 16 May. 0.0313 0.0270 0.0287
14:01-15:00, Thu., 16 May. 0.0306 0.0259 0.0281
13:01-14:00, Thu., 16 May. 0.0306 0.0263 0.0284
12:01-13:00, Thu., 16 May. 0.0308 0.0259 0.0285
11:01-12:00, Thu., 16 May. 0.0311 0.0265 0.0287
10:01-11:00, Thu., 16 May. 0.0310 0.0270 0.0289
09:01-10:00, Thu., 16 May. 0.0337 0.0279 0.0304
08:01-09:00, Thu., 16 May. 0.0337 0.0280 0.0302
07:01-08:00, Thu., 16 May. 0.0344 0.0286 0.0306
06:01-07:00, Thu., 16 May. 0.0345 0.0302 0.0325
05:01-06:00, Thu., 16 May. 0.0348 0.0297 0.0320
04:01-05:00, Thu., 16 May. 0.0363 0.0293 0.0325
03:01-04:00, Thu., 16 May. 0.0358 0.0305 0.0336
02:01-03:00, Thu., 16 May. 0.0360 0.0309 0.0334
01:01-02:00, Thu., 16 May. 0.0444 0.0340 0.0389
00:01-01:00, Thu., 16 May. 0.0394 0.0294 0.0348
23:01-24:00, Wed., 15 May. 0.0356 0.0290 0.0324
22:01-23:00, Wed., 15 May. 0.0402 0.0340 0.0377
21:01-22:00, Wed., 15 May. 0.0401 0.0336 0.0367
20:01-21:00, Wed., 15 May. 0.0363 0.0293 0.0328
19:01-20:00, Wed., 15 May. 0.0331 0.0265 0.0293
18:01-19:00, Wed., 15 May. 0.0308 0.0263 0.0286
17:01-18:00, Wed., 15 May. 0.0320 0.0273 0.0289
16:01-17:00, Wed., 15 May. 0.0318 0.0270 0.0295
15:01-16:00, Wed., 15 May. 0.0324 0.0271 0.0294
14:01-15:00, Wed., 15 May. 0.0309 0.0268 0.0295
13:01-14:00, Wed., 15 May. 0.0315 0.0275 0.0293
12:01-13:00, Wed., 15 May. 0.0321 0.0276 0.0293
11:01-12:00, Wed., 15 May. 0.0319 0.0271 0.0290
10:01-11:00, Wed., 15 May. 0.0308 0.0271 0.0290
09:01-10:00, Wed., 15 May. 0.0307 0.0269 0.0288
08:01-09:00, Wed., 15 May. 0.0313 0.0264 0.0292
07:01-08:00, Wed., 15 May. 0.0316 0.0262 0.0293
06:01-07:00, Wed., 15 May. 0.0315 0.0268 0.0293
05:01-06:00, Wed., 15 May. 0.0320 0.0276 0.0295
04:01-05:00, Wed., 15 May. 0.0318 0.0276 0.0292
03:01-04:00, Wed., 15 May. 0.0308 0.0270 0.0287
02:01-03:00, Wed., 15 May. 0.0308 0.0266 0.0288
01:01-02:00, Wed., 15 May. 0.0308 0.0267 0.0287
00:01-01:00, Wed., 15 May. 0.0304 0.0265 0.0285
23:01-24:00, Tue., 14 May. 0.0308 0.0264 0.0286
22:01-23:00, Tue., 14 May. 0.0311 0.0270 0.0286
21:01-22:00, Tue., 14 May. 0.0304 0.0266 0.0288
20:01-21:00, Tue., 14 May. 0.0310 0.0269 0.0288
19:01-20:00, Tue., 14 May. 0.0308 0.0256 0.0288
18:01-19:00, Tue., 14 May. 0.0307 0.0262 0.0285
17:01-18:00, Tue., 14 May. 0.0310 0.0271 0.0288
16:01-17:00, Tue., 14 May. 0.0315 0.0267 0.0291
15:01-16:00, Tue., 14 May. 0.0322 0.0277 0.0294
14:01-15:00, Tue., 14 May. 0.0308 0.0268 0.0289
13:01-14:00, Tue., 14 May. 0.0314 0.0268 0.0290
12:01-13:00, Tue., 14 May. 0.0304 0.0257 0.0287
11:01-12:00, Tue., 14 May. 0.0307 0.0273 0.0289
10:01-11:00, Tue., 14 May. 0.0315 0.0260 0.0287
09:01-10:00, Tue., 14 May. 0.0304 0.0268 0.0285
08:01-09:00, Tue., 14 May. 0.0305 0.0268 0.0286
07:01-08:00, Tue., 14 May. 0.0307 0.0260 0.0284
06:01-07:00, Tue., 14 May. 0.0307 0.0258 0.0283
05:01-06:00, Tue., 14 May. 0.0305 0.0263 0.0285
04:01-05:00, Tue., 14 May. 0.0308 0.0265 0.0286
03:01-04:00, Tue., 14 May. 0.0304 0.0267 0.0285
02:01-03:00, Tue., 14 May. 0.0319 0.0268 0.0288
01:01-02:00, Tue., 14 May. 0.0330 0.0273 0.0298
00:01-01:00, Tue., 14 May. 0.0396 0.0306 0.0340
23:01-24:00, Mon., 13 May. 0.0539 0.0381 0.0451
22:01-23:00, Mon., 13 May. 0.0550 0.0365 0.0445
21:01-22:00, Mon., 13 May. 0.0386 0.0310 0.0347
20:01-21:00, Mon., 13 May. 0.0461 0.0353 0.0406
19:01-20:00, Mon., 13 May. 0.0438 0.0363 0.0397
18:01-19:00, Mon., 13 May. 0.0409 0.0356 0.0383
17:01-18:00, Mon., 13 May. 0.0467 0.0367 0.0409
16:01-17:00, Mon., 13 May. 0.0492 0.0419 0.0446
15:01-16:00, Mon., 13 May. 0.0494 0.0431 0.0464
14:01-15:00, Mon., 13 May. 0.0482 0.0391 0.0437
13:01-14:00, Mon., 13 May. 0.0409 0.0328 0.0366
12:01-13:00, Mon., 13 May. 0.0376 0.0333 0.0349
11:01-12:00, Mon., 13 May. 0.0362 0.0308 0.0334
10:01-11:00, Mon., 13 May. 0.0346 0.0290 0.0316
09:01-10:00, Mon., 13 May. 0.0327 0.0285 0.0307
08:01-09:00, Mon., 13 May. 0.0350 0.0297 0.0321