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
23:01-24:00, Mon., 19 May. 0.0313 0.0268 0.0288
22:01-23:00, Mon., 19 May. 0.0307 0.0268 0.0287
21:01-22:00, Mon., 19 May. 0.0303 0.0263 0.0286
20:01-21:00, Mon., 19 May. 0.0308 0.0259 0.0285
19:01-20:00, Mon., 19 May. 0.0308 0.0257 0.0288
18:01-19:00, Mon., 19 May. 0.0301 0.0260 0.0284
17:01-18:00, Mon., 19 May. 0.0311 0.0261 0.0285
16:01-17:00, Mon., 19 May. 0.0304 0.0262 0.0284
15:01-16:00, Mon., 19 May. 0.0308 0.0270 0.0286
14:01-15:00, Mon., 19 May. 0.0310 0.0266 0.0286
13:01-14:00, Mon., 19 May. 0.0310 0.0266 0.0285
12:01-13:00, Mon., 19 May. 0.0304 0.0260 0.0283
11:01-12:00, Mon., 19 May. 0.0304 0.0259 0.0284
10:01-11:00, Mon., 19 May. 0.0301 0.0265 0.0284
09:01-10:00, Mon., 19 May. 0.0313 0.0270 0.0285
08:01-09:00, Mon., 19 May. 0.0308 0.0258 0.0282
07:01-08:00, Mon., 19 May. 0.0298 0.0252 0.0283
06:01-07:00, Mon., 19 May. 0.0311 0.0259 0.0283
05:01-06:00, Mon., 19 May. 0.0318 0.0260 0.0289
04:01-05:00, Mon., 19 May. 0.0313 0.0267 0.0289
03:01-04:00, Mon., 19 May. 0.0307 0.0270 0.0286
02:01-03:00, Mon., 19 May. 0.0315 0.0271 0.0289
01:01-02:00, Mon., 19 May. 0.0315 0.0270 0.0291
00:01-01:00, Mon., 19 May. 0.0308 0.0273 0.0292
23:01-24:00, Sun., 18 May. 0.0308 0.0264 0.0287
22:01-23:00, Sun., 18 May. 0.0315 0.0264 0.0290
21:01-22:00, Sun., 18 May. 0.0308 0.0270 0.0289
20:01-21:00, Sun., 18 May. 0.0308 0.0276 0.0290
19:01-20:00, Sun., 18 May. 0.0325 0.0263 0.0288
18:01-19:00, Sun., 18 May. 0.0310 0.0270 0.0290
17:01-18:00, Sun., 18 May. 0.0315 0.0277 0.0293
16:01-17:00, Sun., 18 May. 0.0311 0.0269 0.0291
15:01-16:00, Sun., 18 May. 0.0311 0.0273 0.0290
14:01-15:00, Sun., 18 May. 0.0314 0.0260 0.0291
13:01-14:00, Sun., 18 May. 0.0311 0.0272 0.0294
12:01-13:00, Sun., 18 May. 0.0309 0.0270 0.0291
11:01-12:00, Sun., 18 May. 0.0308 0.0276 0.0293
10:01-11:00, Sun., 18 May. 0.0318 0.0278 0.0295
09:01-10:00, Sun., 18 May. 0.0315 0.0266 0.0290
08:01-09:00, Sun., 18 May. 0.0308 0.0259 0.0286
07:01-08:00, Sun., 18 May. 0.0308 0.0269 0.0287
06:01-07:00, Sun., 18 May. 0.0311 0.0266 0.0287
05:01-06:00, Sun., 18 May. 0.0307 0.0265 0.0287
04:01-05:00, Sun., 18 May. 0.0308 0.0259 0.0286
03:01-04:00, Sun., 18 May. 0.0302 0.0270 0.0285
02:01-03:00, Sun., 18 May. 0.0300 0.0269 0.0285
01:01-02:00, Sun., 18 May. 0.0302 0.0264 0.0285
00:01-01:00, Sun., 18 May. 0.0304 0.0263 0.0282
23:01-24:00, Sat., 17 May. 0.0305 0.0266 0.0283
22:01-23:00, Sat., 17 May. 0.0301 0.0262 0.0284
21:01-22:00, Sat., 17 May. 0.0314 0.0265 0.0283
20:01-21:00, Sat., 17 May. 0.0304 0.0257 0.0285
19:01-20:00, Sat., 17 May. 0.0311 0.0270 0.0286
18:01-19:00, Sat., 17 May. 0.0305 0.0266 0.0281
17:01-18:00, Sat., 17 May. 0.0301 0.0257 0.0278
16:01-17:00, Sat., 17 May. 0.0306 0.0256 0.0283
15:01-16:00, Sat., 17 May. 0.0324 0.0279 0.0295
14:01-15:00, Sat., 17 May. 0.0360 0.0287 0.0322
13:01-14:00, Sat., 17 May. 0.0365 0.0312 0.0339
12:01-13:00, Sat., 17 May. 0.0355 0.0290 0.0324
11:01-12:00, Sat., 17 May. 0.0334 0.0277 0.0306
10:01-11:00, Sat., 17 May. 0.0324 0.0282 0.0303
09:01-10:00, Sat., 17 May. 0.0326 0.0280 0.0309
08:01-09:00, Sat., 17 May. 0.0339 0.0280 0.0310
07:01-08:00, Sat., 17 May. 0.0339 0.0293 0.0313
06:01-07:00, Sat., 17 May. 0.0364 0.0308 0.0336
05:01-06:00, Sat., 17 May. 0.0367 0.0320 0.0343
04:01-05:00, Sat., 17 May. 0.0371 0.0312 0.0334
03:01-04:00, Sat., 17 May. 0.0339 0.0276 0.0312
02:01-03:00, Sat., 17 May. 0.0314 0.0270 0.0291
01:01-02:00, Sat., 17 May. 0.0315 0.0269 0.0290
00:01-01:00, Sat., 17 May. 0.0308 0.0267 0.0290
23:01-24:00, Fri., 16 May. 0.0311 0.0270 0.0290
22:01-23:00, Fri., 16 May. 0.0311 0.0266 0.0289
21:01-22:00, Fri., 16 May. 0.0311 0.0268 0.0291
20:01-21:00, Fri., 16 May. 0.0308 0.0263 0.0288
19:01-20:00, Fri., 16 May. 0.0305 0.0266 0.0284
18:01-19:00, Fri., 16 May. 0.0311 0.0257 0.0286
17:01-18:00, Fri., 16 May. 0.0310 0.0263 0.0288
16:01-17:00, Fri., 16 May. 0.0311 0.0273 0.0291
15:01-16:00, Fri., 16 May. 0.0310 0.0267 0.0290
14:01-15:00, Fri., 16 May. 0.0320 0.0270 0.0295
13:01-14:00, Fri., 16 May. 0.0321 0.0266 0.0296
12:01-13:00, Fri., 16 May. 0.0311 0.0278 0.0294
11:01-12:00, Fri., 16 May. 0.0317 0.0274 0.0294
10:01-11:00, Fri., 16 May. 0.0308 0.0270 0.0290
09:01-10:00, Fri., 16 May. 0.0311 0.0273 0.0290
08:01-09:00, Fri., 16 May. 0.0307 0.0253 0.0286
07:01-08:00, Fri., 16 May. 0.0310 0.0270 0.0291
06:01-07:00, Fri., 16 May. 0.0318 0.0268 0.0294
05:01-06:00, Fri., 16 May. 0.0319 0.0271 0.0293
04:01-05:00, Fri., 16 May. 0.0310 0.0267 0.0288
03:01-04:00, Fri., 16 May. 0.0308 0.0264 0.0286
02:01-03:00, Fri., 16 May. 0.0316 0.0262 0.0287
01:01-02:00, Fri., 16 May. 0.0304 0.0265 0.0285
00:01-01:00, Fri., 16 May. 0.0308 0.0265 0.0289
23:01-24:00, Thu., 15 May. 0.0308 0.0270 0.0290
22:01-23:00, Thu., 15 May. 0.0317 0.0255 0.0286
21:01-22:00, Thu., 15 May. 0.0313 0.0275 0.0291
20:01-21:00, Thu., 15 May. 0.0314 0.0261 0.0290
19:01-20:00, Thu., 15 May. 0.0304 0.0266 0.0286
18:01-19:00, Thu., 15 May. 0.0303 0.0256 0.0285
17:01-18:00, Thu., 15 May. 0.0307 0.0261 0.0288
16:01-17:00, Thu., 15 May. 0.0317 0.0262 0.0291
15:01-16:00, Thu., 15 May. 0.0317 0.0274 0.0291
14:01-15:00, Thu., 15 May. 0.0316 0.0268 0.0292
13:01-14:00, Thu., 15 May. 0.0310 0.0270 0.0291
12:01-13:00, Thu., 15 May. 0.0308 0.0255 0.0290
11:01-12:00, Thu., 15 May. 0.0318 0.0267 0.0291
10:01-11:00, Thu., 15 May. 0.0309 0.0269 0.0288
09:01-10:00, Thu., 15 May. 0.0303 0.0260 0.0284
08:01-09:00, Thu., 15 May. 0.0300 0.0258 0.0282
07:01-08:00, Thu., 15 May. 0.0308 0.0262 0.0286
06:01-07:00, Thu., 15 May. 0.0304 0.0264 0.0285
05:01-06:00, Thu., 15 May. 0.0308 0.0266 0.0285
04:01-05:00, Thu., 15 May. 0.0308 0.0261 0.0287
03:01-04:00, Thu., 15 May. 0.0311 0.0269 0.0288
02:01-03:00, Thu., 15 May. 0.0309 0.0270 0.0287
01:01-02:00, Thu., 15 May. 0.0302 0.0265 0.0285
00:01-01:00, Thu., 15 May. 0.0305 0.0266 0.0284
23:01-24:00, Wed., 14 May. 0.0302 0.0266 0.0285
22:01-23:00, Wed., 14 May. 0.0308 0.0263 0.0283
21:01-22:00, Wed., 14 May. 0.0315 0.0262 0.0288
20:01-21:00, Wed., 14 May. 0.0308 0.0254 0.0287
19:01-20:00, Wed., 14 May. 0.0302 0.0262 0.0281
18:01-19:00, Wed., 14 May. 0.0305 0.0266 0.0287
17:01-18:00, Wed., 14 May. 0.0311 0.0269 0.0291
16:01-17:00, Wed., 14 May. 0.0322 0.0263 0.0289
15:01-16:00, Wed., 14 May. 0.0313 0.0262 0.0290
14:01-15:00, Wed., 14 May. 0.0308 0.0263 0.0288
13:01-14:00, Wed., 14 May. 0.0312 0.0271 0.0291
12:01-13:00, Wed., 14 May. 0.0308 0.0269 0.0288
11:01-12:00, Wed., 14 May. 0.0308 0.0267 0.0288
10:01-11:00, Wed., 14 May. 0.0312 0.0267 0.0289
09:01-10:00, Wed., 14 May. 0.0308 0.0259 0.0287
08:01-09:00, Wed., 14 May. 0.0310 0.0263 0.0289
07:01-08:00, Wed., 14 May. 0.0311 0.0264 0.0289
06:01-07:00, Wed., 14 May. 0.0310 0.0270 0.0288
05:01-06:00, Wed., 14 May. 0.0310 0.0264 0.0289
04:01-05:00, Wed., 14 May. 0.0309 0.0263 0.0284
03:01-04:00, Wed., 14 May. 0.0306 0.0257 0.0281
02:01-03:00, Wed., 14 May. 0.0305 0.0263 0.0285
01:01-02:00, Wed., 14 May. 0.0306 0.0265 0.0285
00:01-01:00, Wed., 14 May. 0.0302 0.0263 0.0285
23:01-24:00, Tue., 13 May. 0.0315 0.0264 0.0286
22:01-23:00, Tue., 13 May. 0.0308 0.0263 0.0285
21:01-22:00, Tue., 13 May. 0.0304 0.0257 0.0283
20:01-21:00, Tue., 13 May. 0.0306 0.0261 0.0285
19:01-20:00, Tue., 13 May. 0.0301 0.0266 0.0285
18:01-19:00, Tue., 13 May. 0.0312 0.0267 0.0286
17:01-18:00, Tue., 13 May. 0.0317 0.0269 0.0290
16:01-17:00, Tue., 13 May. 0.0314 0.0275 0.0292
15:01-16:00, Tue., 13 May. 0.0317 0.0269 0.0289
14:01-15:00, Tue., 13 May. 0.0309 0.0266 0.0289
13:01-14:00, Tue., 13 May. 0.0311 0.0273 0.0290
12:01-13:00, Tue., 13 May. 0.0322 0.0266 0.0289
11:01-12:00, Tue., 13 May. 0.0308 0.0268 0.0291
10:01-11:00, Tue., 13 May. 0.0305 0.0269 0.0288
09:01-10:00, Tue., 13 May. 0.0306 0.0266 0.0286
08:01-09:00, Tue., 13 May. 0.0305 0.0263 0.0284
07:01-08:00, Tue., 13 May. 0.0308 0.0260 0.0281
06:01-07:00, Tue., 13 May. 0.0328 0.0254 0.0280
05:01-06:00, Tue., 13 May. 0.0315 0.0260 0.0280
04:01-05:00, Tue., 13 May. 0.0299 0.0262 0.0279
03:01-04:00, Tue., 13 May. 0.0305 0.0262 0.0281
02:01-03:00, Tue., 13 May. 0.0302 0.0242 0.0280
01:01-02:00, Tue., 13 May. 0.0300 0.0262 0.0281
00:01-01:00, Tue., 13 May. 0.0308 0.0266 0.0282
23:01-24:00, Mon., 12 May. 0.0316 0.0259 0.0282
22:01-23:00, Mon., 12 May. 0.0311 0.0263 0.0282
21:01-22:00, Mon., 12 May. 0.0310 0.0262 0.0283
20:01-21:00, Mon., 12 May. 0.0303 0.0259 0.0284
19:01-20:00, Mon., 12 May. 0.0302 0.0265 0.0285
18:01-19:00, Mon., 12 May. 0.0303 0.0257 0.0282
17:01-18:00, Mon., 12 May. 0.0302 0.0259 0.0279
16:01-17:00, Mon., 12 May. 0.0305 0.0260 0.0279
15:01-16:00, Mon., 12 May. 0.0308 0.0260 0.0281
14:01-15:00, Mon., 12 May. 0.0311 0.0266 0.0285
13:01-14:00, Mon., 12 May. 0.0311 0.0259 0.0286
12:01-13:00, Mon., 12 May. 0.0301 0.0259 0.0282
11:01-12:00, Mon., 12 May. 0.0308 0.0262 0.0283
10:01-11:00, Mon., 12 May. 0.0301 0.0263 0.0283
09:01-10:00, Mon., 12 May. 0.0301 0.0264 0.0284
08:01-09:00, Mon., 12 May. 0.0305 0.0260 0.0283
07:01-08:00, Mon., 12 May. 0.0324 0.0266 0.0290
06:01-07:00, Mon., 12 May. 0.0359 0.0280 0.0320
05:01-06:00, Mon., 12 May. 0.0388 0.0333 0.0356
04:01-05:00, Mon., 12 May. 0.0367 0.0318 0.0341
03:01-04:00, Mon., 12 May. 0.0409 0.0338 0.0377
02:01-03:00, Mon., 12 May. 0.0413 0.0369 0.0394
01:01-02:00, Mon., 12 May. 0.0402 0.0324 0.0361
00:01-01:00, Mon., 12 May. 0.0412 0.0347 0.0386
23:01-24:00, Sun., 11 May. 0.0388 0.0310 0.0347
22:01-23:00, Sun., 11 May. 0.0356 0.0306 0.0333
21:01-22:00, Sun., 11 May. 0.0346 0.0285 0.0312
20:01-21:00, Sun., 11 May. 0.0312 0.0269 0.0290
19:01-20:00, Sun., 11 May. 0.0308 0.0266 0.0285
18:01-19:00, Sun., 11 May. 0.0317 0.0266 0.0290
17:01-18:00, Sun., 11 May. 0.0315 0.0268 0.0293
16:01-17:00, Sun., 11 May. 0.0320 0.0275 0.0294
15:01-16:00, Sun., 11 May. 0.0311 0.0270 0.0294
14:01-15:00, Sun., 11 May. 0.0311 0.0270 0.0295
13:01-14:00, Sun., 11 May. 0.0312 0.0265 0.0294
12:01-13:00, Sun., 11 May. 0.0322 0.0266 0.0294
11:01-12:00, Sun., 11 May. 0.0320 0.0273 0.0292
10:01-11:00, Sun., 11 May. 0.0321 0.0269 0.0291
09:01-10:00, Sun., 11 May. 0.0311 0.0276 0.0294
08:01-09:00, Sun., 11 May. 0.0314 0.0261 0.0292
07:01-08:00, Sun., 11 May. 0.0316 0.0272 0.0293
06:01-07:00, Sun., 11 May. 0.0310 0.0270 0.0293
05:01-06:00, Sun., 11 May. 0.0323 0.0276 0.0293
04:01-05:00, Sun., 11 May. 0.0311 0.0273 0.0290
03:01-04:00, Sun., 11 May. 0.0309 0.0265 0.0288
02:01-03:00, Sun., 11 May. 0.0311 0.0272 0.0289
01:01-02:00, Sun., 11 May. 0.0308 0.0253 0.0286
00:01-01:00, Sun., 11 May. 0.0311 0.0270 0.0288
23:01-24:00, Sat., 10 May. 0.0306 0.0272 0.0289
22:01-23:00, Sat., 10 May. 0.0320 0.0272 0.0294
21:01-22:00, Sat., 10 May. 0.0317 0.0274 0.0293
20:01-21:00, Sat., 10 May. 0.0316 0.0266 0.0290
19:01-20:00, Sat., 10 May. 0.0310 0.0269 0.0286
18:01-19:00, Sat., 10 May. 0.0311 0.0259 0.0282
17:01-18:00, Sat., 10 May. 0.0303 0.0263 0.0283
16:01-17:00, Sat., 10 May. 0.0309 0.0267 0.0285
15:01-16:00, Sat., 10 May. 0.0307 0.0263 0.0284
14:01-15:00, Sat., 10 May. 0.0304 0.0266 0.0283
13:01-14:00, Sat., 10 May. 0.0306 0.0258 0.0285
12:01-13:00, Sat., 10 May. 0.0310 0.0260 0.0288
11:01-12:00, Sat., 10 May. 0.0326 0.0279 0.0298
10:01-11:00, Sat., 10 May. 0.0327 0.0277 0.0303
09:01-10:00, Sat., 10 May. 0.0341 0.0299 0.0320
08:01-09:00, Sat., 10 May. 0.0360 0.0299 0.0330
07:01-08:00, Sat., 10 May. 0.0343 0.0303 0.0325
06:01-07:00, Sat., 10 May. 0.0364 0.0308 0.0337
05:01-06:00, Sat., 10 May. 0.0369 0.0316 0.0347
04:01-05:00, Sat., 10 May. 0.0376 0.0318 0.0342
03:01-04:00, Sat., 10 May. 0.0371 0.0328 0.0348
02:01-03:00, Sat., 10 May. 0.0360 0.0311 0.0336
01:01-02:00, Sat., 10 May. 0.0350 0.0300 0.0320
00:01-01:00, Sat., 10 May. 0.0375 0.0304 0.0340