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
16:01-17:00, Fri., 17 Apr. 0.0304 0.0261 0.0283
15:01-16:00, Fri., 17 Apr. 0.0303 0.0266 0.0282
14:01-15:00, Fri., 17 Apr. 0.0304 0.0261 0.0283
13:01-14:00, Fri., 17 Apr. 0.0308 0.0266 0.0285
12:01-13:00, Fri., 17 Apr. 0.0316 0.0265 0.0283
11:01-12:00, Fri., 17 Apr. 0.0319 0.0266 0.0287
10:01-11:00, Fri., 17 Apr. 0.0302 0.0256 0.0283
09:01-10:00, Fri., 17 Apr. 0.0297 0.0265 0.0280
08:01-09:00, Fri., 17 Apr. 0.0301 0.0255 0.0279
07:01-08:00, Fri., 17 Apr. 0.0299 0.0263 0.0281
06:01-07:00, Fri., 17 Apr. 0.0300 0.0258 0.0278
05:01-06:00, Fri., 17 Apr. 0.0294 0.0256 0.0278
04:01-05:00, Fri., 17 Apr. 0.0294 0.0256 0.0279
03:01-04:00, Fri., 17 Apr. 0.0310 0.0260 0.0281
02:01-03:00, Fri., 17 Apr. 0.0301 0.0252 0.0281
01:01-02:00, Fri., 17 Apr. 0.0304 0.0258 0.0281
00:01-01:00, Fri., 17 Apr. 0.0301 0.0260 0.0282
23:01-24:00, Thu., 16 Apr. 0.0308 0.0263 0.0283
22:01-23:00, Thu., 16 Apr. 0.0309 0.0257 0.0282
21:01-22:00, Thu., 16 Apr. 0.0294 0.0263 0.0281
20:01-21:00, Thu., 16 Apr. 0.0299 0.0264 0.0282
19:01-20:00, Thu., 16 Apr. 0.0301 0.0258 0.0280
18:01-19:00, Thu., 16 Apr. 0.0308 0.0259 0.0282
17:01-18:00, Thu., 16 Apr. 0.0311 0.0261 0.0282
16:01-17:00, Thu., 16 Apr. 0.0306 0.0270 0.0286
15:01-16:00, Thu., 16 Apr. 0.0304 0.0254 0.0284
14:01-15:00, Thu., 16 Apr. 0.0303 0.0270 0.0283
13:01-14:00, Thu., 16 Apr. 0.0311 0.0258 0.0287
12:01-13:00, Thu., 16 Apr. 0.0308 0.0268 0.0289
11:01-12:00, Thu., 16 Apr. 0.0308 0.0270 0.0291
10:01-11:00, Thu., 16 Apr. 0.0306 0.0266 0.0287
09:01-10:00, Thu., 16 Apr. 0.0299 0.0256 0.0278
08:01-09:00, Thu., 16 Apr. 0.0305 0.0256 0.0278
07:01-08:00, Thu., 16 Apr. 0.0301 0.0256 0.0281
06:01-07:00, Thu., 16 Apr. 0.0308 0.0268 0.0286
05:01-06:00, Thu., 16 Apr. 0.0313 0.0267 0.0289
04:01-05:00, Thu., 16 Apr. 0.0329 0.0275 0.0301
03:01-04:00, Thu., 16 Apr. 0.0345 0.0292 0.0323
02:01-03:00, Thu., 16 Apr. 0.0372 0.0322 0.0348
01:01-02:00, Thu., 16 Apr. 0.0371 0.0322 0.0347
00:01-01:00, Thu., 16 Apr. 0.0357 0.0316 0.0333
23:01-24:00, Wed., 15 Apr. 0.0391 0.0315 0.0350
22:01-23:00, Wed., 15 Apr. 0.0391 0.0327 0.0362
21:01-22:00, Wed., 15 Apr. 0.0419 0.0352 0.0391
20:01-21:00, Wed., 15 Apr. 0.0432 0.0392 0.0410
19:01-20:00, Wed., 15 Apr. 0.0408 0.0353 0.0379
18:01-19:00, Wed., 15 Apr. 0.0368 0.0275 0.0320
17:01-18:00, Wed., 15 Apr. 0.0309 0.0258 0.0289
16:01-17:00, Wed., 15 Apr. 0.0308 0.0269 0.0288
15:01-16:00, Wed., 15 Apr. 0.0315 0.0275 0.0295
14:01-15:00, Wed., 15 Apr. 0.0313 0.0273 0.0294
13:01-14:00, Wed., 15 Apr. 0.0315 0.0270 0.0293
12:01-13:00, Wed., 15 Apr. 0.0326 0.0268 0.0291
11:01-12:00, Wed., 15 Apr. 0.0315 0.0263 0.0287
10:01-11:00, Wed., 15 Apr. 0.0312 0.0271 0.0289
09:01-10:00, Wed., 15 Apr. 0.0308 0.0276 0.0291
08:01-09:00, Wed., 15 Apr. 0.0312 0.0266 0.0290
07:01-08:00, Wed., 15 Apr. 0.0310 0.0270 0.0289
06:01-07:00, Wed., 15 Apr. 0.0312 0.0272 0.0289
05:01-06:00, Wed., 15 Apr. 0.0308 0.0273 0.0291
04:01-05:00, Wed., 15 Apr. 0.0309 0.0266 0.0290
03:01-04:00, Wed., 15 Apr. 0.0312 0.0270 0.0292
02:01-03:00, Wed., 15 Apr. 0.0315 0.0263 0.0291
01:01-02:00, Wed., 15 Apr. 0.0318 0.0270 0.0292
00:01-01:00, Wed., 15 Apr. 0.0314 0.0274 0.0292
23:01-24:00, Tue., 14 Apr. 0.0316 0.0270 0.0292
22:01-23:00, Tue., 14 Apr. 0.0310 0.0265 0.0291
21:01-22:00, Tue., 14 Apr. 0.0309 0.0270 0.0290
20:01-21:00, Tue., 14 Apr. 0.0314 0.0269 0.0289
19:01-20:00, Tue., 14 Apr. 0.0312 0.0258 0.0289
18:01-19:00, Tue., 14 Apr. 0.0310 0.0271 0.0287
17:01-18:00, Tue., 14 Apr. 0.0311 0.0263 0.0286
16:01-17:00, Tue., 14 Apr. 0.0471 0.0270 0.0298
15:01-16:00, Tue., 14 Apr. 0.0315 0.0274 0.0295
14:01-15:00, Tue., 14 Apr. 0.0318 0.0268 0.0294
13:01-14:00, Tue., 14 Apr. 0.0320 0.0282 0.0297
12:01-13:00, Tue., 14 Apr. 0.0314 0.0271 0.0292
11:01-12:00, Tue., 14 Apr. 0.0315 0.0269 0.0290
10:01-11:00, Tue., 14 Apr. 0.0318 0.0266 0.0287
09:01-10:00, Tue., 14 Apr. 0.0309 0.0273 0.0290
08:01-09:00, Tue., 14 Apr. 0.0317 0.0273 0.0293
07:01-08:00, Tue., 14 Apr. 0.0313 0.0271 0.0293
06:01-07:00, Tue., 14 Apr. 0.0310 0.0270 0.0295
05:01-06:00, Tue., 14 Apr. 0.0323 0.0276 0.0294
04:01-05:00, Tue., 14 Apr. 0.0313 0.0268 0.0296
03:01-04:00, Tue., 14 Apr. 0.0314 0.0263 0.0294
02:01-03:00, Tue., 14 Apr. 0.0318 0.0266 0.0292
01:01-02:00, Tue., 14 Apr. 0.0311 0.0270 0.0291
00:01-01:00, Tue., 14 Apr. 0.0321 0.0266 0.0288
23:01-24:00, Mon., 13 Apr. 0.0314 0.0270 0.0288
22:01-23:00, Mon., 13 Apr. 0.0316 0.0268 0.0289
21:01-22:00, Mon., 13 Apr. 0.0318 0.0263 0.0289
20:01-21:00, Mon., 13 Apr. 0.0307 0.0263 0.0283
19:01-20:00, Mon., 13 Apr. 0.0313 0.0272 0.0290
18:01-19:00, Mon., 13 Apr. 0.0307 0.0261 0.0286
17:01-18:00, Mon., 13 Apr. 0.0311 0.0259 0.0287
16:01-17:00, Mon., 13 Apr. 0.0306 0.0266 0.0287
15:01-16:00, Mon., 13 Apr. 0.0312 0.0263 0.0288
14:01-15:00, Mon., 13 Apr. 0.0311 0.0269 0.0290
13:01-14:00, Mon., 13 Apr. 0.0312 0.0273 0.0291
12:01-13:00, Mon., 13 Apr. 0.0320 0.0276 0.0292
11:01-12:00, Mon., 13 Apr. 0.0313 0.0270 0.0293
10:01-11:00, Mon., 13 Apr. 0.0313 0.0274 0.0297
09:01-10:00, Mon., 13 Apr. 0.0318 0.0276 0.0297
08:01-09:00, Mon., 13 Apr. 0.0320 0.0276 0.0298
07:01-08:00, Mon., 13 Apr. 0.0312 0.0275 0.0294
06:01-07:00, Mon., 13 Apr. 0.0319 0.0270 0.0296
05:01-06:00, Mon., 13 Apr. 0.0317 0.0277 0.0297
04:01-05:00, Mon., 13 Apr. 0.0311 0.0273 0.0295
03:01-04:00, Mon., 13 Apr. 0.0311 0.0272 0.0295
02:01-03:00, Mon., 13 Apr. 0.0317 0.0270 0.0293
01:01-02:00, Mon., 13 Apr. 0.0311 0.0268 0.0288
00:01-01:00, Mon., 13 Apr. 0.0313 0.0263 0.0288
23:01-24:00, Sun., 12 Apr. 0.0308 0.0263 0.0288
22:01-23:00, Sun., 12 Apr. 0.0311 0.0266 0.0291
21:01-22:00, Sun., 12 Apr. 0.0311 0.0260 0.0291
20:01-21:00, Sun., 12 Apr. 0.0313 0.0270 0.0289
19:01-20:00, Sun., 12 Apr. 0.0322 0.0258 0.0287
18:01-19:00, Sun., 12 Apr. 0.0307 0.0271 0.0291
17:01-18:00, Sun., 12 Apr. 0.0311 0.0266 0.0291
16:01-17:00, Sun., 12 Apr. 0.0309 0.0270 0.0295
15:01-16:00, Sun., 12 Apr. 0.0314 0.0261 0.0292
14:01-15:00, Sun., 12 Apr. 0.0304 0.0272 0.0287
13:01-14:00, Sun., 12 Apr. 0.0311 0.0269 0.0292
12:01-13:00, Sun., 12 Apr. 0.0308 0.0267 0.0291
11:01-12:00, Sun., 12 Apr. 0.0318 0.0261 0.0292
10:01-11:00, Sun., 12 Apr. 0.0312 0.0262 0.0290
09:01-10:00, Sun., 12 Apr. 0.0318 0.0272 0.0290
08:01-09:00, Sun., 12 Apr. 0.0326 0.0271 0.0292
07:01-08:00, Sun., 12 Apr. 0.0319 0.0268 0.0290
06:01-07:00, Sun., 12 Apr. 0.0310 0.0267 0.0290
05:01-06:00, Sun., 12 Apr. 0.0307 0.0267 0.0289
04:01-05:00, Sun., 12 Apr. 0.0308 0.0270 0.0289
03:01-04:00, Sun., 12 Apr. 0.0315 0.0271 0.0291
02:01-03:00, Sun., 12 Apr. 0.0318 0.0263 0.0291
01:01-02:00, Sun., 12 Apr. 0.0313 0.0270 0.0294
00:01-01:00, Sun., 12 Apr. 0.0323 0.0274 0.0294
23:01-24:00, Sat., 11 Apr. 0.0318 0.0267 0.0294
22:01-23:00, Sat., 11 Apr. 0.0317 0.0275 0.0293
21:01-22:00, Sat., 11 Apr. 0.0316 0.0267 0.0291
20:01-21:00, Sat., 11 Apr. 0.0311 0.0270 0.0292
19:01-20:00, Sat., 11 Apr. 0.0312 0.0266 0.0289
18:01-19:00, Sat., 11 Apr. 0.0309 0.0267 0.0287
17:01-18:00, Sat., 11 Apr. 0.0322 0.0270 0.0293
16:01-17:00, Sat., 11 Apr. 0.0318 0.0275 0.0297
15:01-16:00, Sat., 11 Apr. 0.0329 0.0273 0.0299
14:01-15:00, Sat., 11 Apr. 0.0311 0.0276 0.0294
13:01-14:00, Sat., 11 Apr. 0.0337 0.0275 0.0297
12:01-13:00, Sat., 11 Apr. 0.0327 0.0280 0.0303
11:01-12:00, Sat., 11 Apr. 0.0324 0.0283 0.0301
10:01-11:00, Sat., 11 Apr. 0.0319 0.0278 0.0296
09:01-10:00, Sat., 11 Apr. 0.0318 0.0273 0.0297
08:01-09:00, Sat., 11 Apr. 0.0315 0.0271 0.0297
07:01-08:00, Sat., 11 Apr. 0.0319 0.0276 0.0295
06:01-07:00, Sat., 11 Apr. 0.0314 0.0276 0.0295
05:01-06:00, Sat., 11 Apr. 0.0315 0.0270 0.0297
04:01-05:00, Sat., 11 Apr. 0.0314 0.0266 0.0295
03:01-04:00, Sat., 11 Apr. 0.0312 0.0272 0.0292
02:01-03:00, Sat., 11 Apr. 0.0316 0.0269 0.0291
01:01-02:00, Sat., 11 Apr. 0.0313 0.0266 0.0289
00:01-01:00, Sat., 11 Apr. 0.0311 0.0265 0.0292
23:01-24:00, Fri., 10 Apr. 0.0322 0.0274 0.0294
22:01-23:00, Fri., 10 Apr. 0.0323 0.0270 0.0296
21:01-22:00, Fri., 10 Apr. 0.0353 0.0290 0.0318
20:01-21:00, Fri., 10 Apr. 0.0389 0.0328 0.0362
19:01-20:00, Fri., 10 Apr. 0.0364 0.0275 0.0310
18:01-19:00, Fri., 10 Apr. 0.0322 0.0276 0.0301
17:01-18:00, Fri., 10 Apr. 0.0332 0.0280 0.0308
16:01-17:00, Fri., 10 Apr. 0.0318 0.0270 0.0292
15:01-16:00, Fri., 10 Apr. 0.0322 0.0266 0.0289
14:01-15:00, Fri., 10 Apr. 0.0325 0.0280 0.0298
13:01-14:00, Fri., 10 Apr. 0.0334 0.0289 0.0313
12:01-13:00, Fri., 10 Apr. 0.0346 0.0302 0.0325
11:01-12:00, Fri., 10 Apr. 0.0362 0.0308 0.0330
10:01-11:00, Fri., 10 Apr. 0.0353 0.0270 0.0303
09:01-10:00, Fri., 10 Apr. 0.0304 0.0266 0.0284
08:01-09:00, Fri., 10 Apr. 0.0308 0.0266 0.0283
07:01-08:00, Fri., 10 Apr. 0.0301 0.0263 0.0283
06:01-07:00, Fri., 10 Apr. 0.0314 0.0263 0.0286
05:01-06:00, Fri., 10 Apr. 0.0318 0.0273 0.0295
04:01-05:00, Fri., 10 Apr. 0.0356 0.0298 0.0323
03:01-04:00, Fri., 10 Apr. 0.0360 0.0270 0.0324
02:01-03:00, Fri., 10 Apr. 0.0334 0.0276 0.0299
01:01-02:00, Fri., 10 Apr. 0.0400 0.0301 0.0340
00:01-01:00, Fri., 10 Apr. 0.0443 0.0310 0.0389
23:01-24:00, Thu., 09 Apr. 0.0339 0.0290 0.0313
22:01-23:00, Thu., 09 Apr. 0.0353 0.0273 0.0319
21:01-22:00, Thu., 09 Apr. 0.0313 0.0267 0.0288
20:01-21:00, Thu., 09 Apr. 0.0312 0.0266 0.0286
19:01-20:00, Thu., 09 Apr. 0.0313 0.0269 0.0288
18:01-19:00, Thu., 09 Apr. 0.0313 0.0268 0.0287
17:01-18:00, Thu., 09 Apr. 0.0319 0.0266 0.0284
16:01-17:00, Thu., 09 Apr. 0.0311 0.0256 0.0282
15:01-16:00, Thu., 09 Apr. 0.0308 0.0261 0.0285
14:01-15:00, Thu., 09 Apr. 0.0312 0.0266 0.0284
13:01-14:00, Thu., 09 Apr. 0.0304 0.0264 0.0285
12:01-13:00, Thu., 09 Apr. 0.0305 0.0264 0.0285
11:01-12:00, Thu., 09 Apr. 0.0304 0.0259 0.0284
10:01-11:00, Thu., 09 Apr. 0.0304 0.0259 0.0283
09:01-10:00, Thu., 09 Apr. 0.0314 0.0265 0.0285
08:01-09:00, Thu., 09 Apr. 0.0323 0.0270 0.0291
07:01-08:00, Thu., 09 Apr. 0.0308 0.0266 0.0290
06:01-07:00, Thu., 09 Apr. 0.0307 0.0270 0.0289
05:01-06:00, Thu., 09 Apr. 0.0308 0.0270 0.0289
04:01-05:00, Thu., 09 Apr. 0.0311 0.0267 0.0289
03:01-04:00, Thu., 09 Apr. 0.0308 0.0264 0.0288
02:01-03:00, Thu., 09 Apr. 0.0308 0.0259 0.0286
01:01-02:00, Thu., 09 Apr. 0.0306 0.0269 0.0287
00:01-01:00, Thu., 09 Apr. 0.0305 0.0266 0.0284
23:01-24:00, Wed., 08 Apr. 0.0305 0.0269 0.0283
22:01-23:00, Wed., 08 Apr. 0.0303 0.0266 0.0285
21:01-22:00, Wed., 08 Apr. 0.0307 0.0266 0.0285
20:01-21:00, Wed., 08 Apr. 0.0309 0.0263 0.0283
19:01-20:00, Wed., 08 Apr. 0.0308 0.0252 0.0285
18:01-19:00, Wed., 08 Apr. 0.0304 0.0265 0.0284
17:01-18:00, Wed., 08 Apr. 0.0312 0.0256 0.0284
16:01-17:00, Wed., 08 Apr. 0.0304 0.0270 0.0287
15:01-16:00, Wed., 08 Apr. 0.0307 0.0259 0.0284
14:01-15:00, Wed., 08 Apr. 0.0308 0.0265 0.0288
13:01-14:00, Wed., 08 Apr. 0.0308 0.0267 0.0287
12:01-13:00, Wed., 08 Apr. 0.0307 0.0262 0.0285
11:01-12:00, Wed., 08 Apr. 0.0310 0.0270 0.0286
10:01-11:00, Wed., 08 Apr. 0.0309 0.0259 0.0285
09:01-10:00, Wed., 08 Apr. 0.0307 0.0263 0.0281
08:01-09:00, Wed., 08 Apr. 0.0317 0.0266 0.0285
07:01-08:00, Wed., 08 Apr. 0.0307 0.0260 0.0283
06:01-07:00, Wed., 08 Apr. 0.0306 0.0266 0.0284
05:01-06:00, Wed., 08 Apr. 0.0306 0.0266 0.0285
04:01-05:00, Wed., 08 Apr. 0.0315 0.0268 0.0287
03:01-04:00, Wed., 08 Apr. 0.0305 0.0261 0.0284
02:01-03:00, Wed., 08 Apr. 0.0307 0.0263 0.0283
01:01-02:00, Wed., 08 Apr. 0.0315 0.0268 0.0285
00:01-01:00, Wed., 08 Apr. 0.0315 0.0266 0.0287
23:01-24:00, Tue., 07 Apr. 0.0322 0.0273 0.0296
22:01-23:00, Tue., 07 Apr. 0.0338 0.0281 0.0309
21:01-22:00, Tue., 07 Apr. 0.0309 0.0274 0.0290
20:01-21:00, Tue., 07 Apr. 0.0318 0.0279 0.0292
19:01-20:00, Tue., 07 Apr. 0.0316 0.0274 0.0293
18:01-19:00, Tue., 07 Apr. 0.0317 0.0273 0.0292
17:01-18:00, Tue., 07 Apr. 0.0308 0.0266 0.0288