Measurement results by the hour (Chofu) 17 Apr., 2017 - 23 Apr., 2017

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, Sun., 23 Apr. 0.0300 0.0259 0.0281
22:01-23:00, Sun., 23 Apr. 0.0297 0.0261 0.0278
21:01-22:00, Sun., 23 Apr. 0.0302 0.0265 0.0280
20:01-21:00, Sun., 23 Apr. 0.0294 0.0252 0.0278
19:01-20:00, Sun., 23 Apr. 0.0298 0.0258 0.0279
18:01-19:00, Sun., 23 Apr. 0.0294 0.0260 0.0279
17:01-18:00, Sun., 23 Apr. 0.0295 0.0259 0.0278
16:01-17:00, Sun., 23 Apr. 0.0301 0.0258 0.0278
15:01-16:00, Sun., 23 Apr. 0.0307 0.0256 0.0279
14:01-15:00, Sun., 23 Apr. 0.0294 0.0251 0.0277
13:01-14:00, Sun., 23 Apr. 0.0294 0.0262 0.0279
12:01-13:00, Sun., 23 Apr. 0.0299 0.0265 0.0280
11:01-12:00, Sun., 23 Apr. 0.0298 0.0260 0.0282
10:01-11:00, Sun., 23 Apr. 0.0300 0.0266 0.0281
09:01-10:00, Sun., 23 Apr. 0.0295 0.0264 0.0281
08:01-09:00, Sun., 23 Apr. 0.0305 0.0261 0.0284
07:01-08:00, Sun., 23 Apr. 0.0302 0.0263 0.0282
06:01-07:00, Sun., 23 Apr. 0.0312 0.0258 0.0284
05:01-06:00, Sun., 23 Apr. 0.0304 0.0273 0.0285
04:01-05:00, Sun., 23 Apr. 0.0302 0.0261 0.0281
03:01-04:00, Sun., 23 Apr. 0.0308 0.0265 0.0285
02:01-03:00, Sun., 23 Apr. 0.0311 0.0275 0.0292
01:01-02:00, Sun., 23 Apr. 0.0364 0.0289 0.0323
00:01-01:00, Sun., 23 Apr. 0.0497 0.0348 0.0410
23:01-24:00, Sat., 22 Apr. 0.0548 0.0447 0.0499
22:01-23:00, Sat., 22 Apr. 0.0529 0.0454 0.0489
21:01-22:00, Sat., 22 Apr. 0.0529 0.0430 0.0472
20:01-21:00, Sat., 22 Apr. 0.0510 0.0410 0.0462
19:01-20:00, Sat., 22 Apr. 0.0469 0.0385 0.0422
18:01-19:00, Sat., 22 Apr. 0.0485 0.0420 0.0444
17:01-18:00, Sat., 22 Apr. 0.0464 0.0317 0.0362
16:01-17:00, Sat., 22 Apr. 0.0357 0.0283 0.0308
15:01-16:00, Sat., 22 Apr. 0.0352 0.0297 0.0326
14:01-15:00, Sat., 22 Apr. 0.0359 0.0270 0.0307
13:01-14:00, Sat., 22 Apr. 0.0317 0.0266 0.0292
12:01-13:00, Sat., 22 Apr. 0.0310 0.0278 0.0292
11:01-12:00, Sat., 22 Apr. 0.0313 0.0276 0.0295
10:01-11:00, Sat., 22 Apr. 0.0313 0.0272 0.0293
09:01-10:00, Sat., 22 Apr. 0.0315 0.0278 0.0295
08:01-09:00, Sat., 22 Apr. 0.0308 0.0277 0.0295
07:01-08:00, Sat., 22 Apr. 0.0315 0.0276 0.0294
06:01-07:00, Sat., 22 Apr. 0.0322 0.0266 0.0297
05:01-06:00, Sat., 22 Apr. 0.0319 0.0276 0.0296
04:01-05:00, Sat., 22 Apr. 0.0323 0.0277 0.0298
03:01-04:00, Sat., 22 Apr. 0.0313 0.0279 0.0297
02:01-03:00, Sat., 22 Apr. 0.0316 0.0272 0.0295
01:01-02:00, Sat., 22 Apr. 0.0314 0.0278 0.0294
00:01-01:00, Sat., 22 Apr. 0.0312 0.0282 0.0298
23:01-24:00, Fri., 21 Apr. 0.0319 0.0270 0.0291
22:01-23:00, Fri., 21 Apr. 0.0314 0.0274 0.0291
21:01-22:00, Fri., 21 Apr. 0.0309 0.0271 0.0293
20:01-21:00, Fri., 21 Apr. 0.0310 0.0266 0.0288
19:01-20:00, Fri., 21 Apr. 0.0307 0.0270 0.0287
18:01-19:00, Fri., 21 Apr. 0.0304 0.0268 0.0288
17:01-18:00, Fri., 21 Apr. 0.0307 0.0266 0.0288
16:01-17:00, Fri., 21 Apr. 0.0315 0.0264 0.0292
15:01-16:00, Fri., 21 Apr. 0.0310 0.0275 0.0291
14:01-15:00, Fri., 21 Apr. 0.0305 0.0274 0.0290
13:01-14:00, Fri., 21 Apr. 0.0307 0.0268 0.0289
12:01-13:00, Fri., 21 Apr. 0.0310 0.0274 0.0291
11:01-12:00, Fri., 21 Apr. 0.0322 0.0268 0.0294
10:01-11:00, Fri., 21 Apr. 0.0311 0.0269 0.0290
09:01-10:00, Fri., 21 Apr. 0.0320 0.0259 0.0292
08:01-09:00, Fri., 21 Apr. 0.0313 0.0269 0.0292
07:01-08:00, Fri., 21 Apr. 0.0311 0.0273 0.0293
06:01-07:00, Fri., 21 Apr. 0.0318 0.0281 0.0295
05:01-06:00, Fri., 21 Apr. 0.0315 0.0276 0.0296
04:01-05:00, Fri., 21 Apr. 0.0314 0.0278 0.0297
03:01-04:00, Fri., 21 Apr. 0.0306 0.0267 0.0291
02:01-03:00, Fri., 21 Apr. 0.0311 0.0274 0.0291
01:01-02:00, Fri., 21 Apr. 0.0320 0.0268 0.0290
00:01-01:00, Fri., 21 Apr. 0.0308 0.0269 0.0291
23:01-24:00, Thu., 20 Apr. 0.0308 0.0272 0.0290
22:01-23:00, Thu., 20 Apr. 0.0304 0.0270 0.0290
21:01-22:00, Thu., 20 Apr. 0.0303 0.0267 0.0288
20:01-21:00, Thu., 20 Apr. 0.0308 0.0260 0.0289
19:01-20:00, Thu., 20 Apr. 0.0308 0.0268 0.0290
18:01-19:00, Thu., 20 Apr. 0.0311 0.0272 0.0289
17:01-18:00, Thu., 20 Apr. 0.0306 0.0271 0.0289
16:01-17:00, Thu., 20 Apr. 0.0306 0.0273 0.0289
15:01-16:00, Thu., 20 Apr. 0.0307 0.0269 0.0288
14:01-15:00, Thu., 20 Apr. 0.0309 0.0271 0.0289
13:01-14:00, Thu., 20 Apr. 0.0306 0.0270 0.0288
12:01-13:00, Thu., 20 Apr. 0.0308 0.0272 0.0290
11:01-12:00, Thu., 20 Apr. 0.0326 0.0271 0.0291
10:01-11:00, Thu., 20 Apr. 0.0312 0.0275 0.0293
09:01-10:00, Thu., 20 Apr. 0.0310 0.0268 0.0292
08:01-09:00, Thu., 20 Apr. 0.0320 0.0276 0.0294
07:01-08:00, Thu., 20 Apr. 0.0311 0.0275 0.0292
06:01-07:00, Thu., 20 Apr. 0.0311 0.0266 0.0292
05:01-06:00, Thu., 20 Apr. 0.0313 0.0274 0.0294
04:01-05:00, Thu., 20 Apr. 0.0309 0.0264 0.0291
03:01-04:00, Thu., 20 Apr. 0.0313 0.0275 0.0293
02:01-03:00, Thu., 20 Apr. 0.0313 0.0273 0.0292
01:01-02:00, Thu., 20 Apr. 0.0309 0.0274 0.0292
00:01-01:00, Thu., 20 Apr. 0.0313 0.0272 0.0293
23:01-24:00, Wed., 19 Apr. 0.0321 0.0273 0.0293
22:01-23:00, Wed., 19 Apr. 0.0313 0.0276 0.0293
21:01-22:00, Wed., 19 Apr. 0.0313 0.0275 0.0294
20:01-21:00, Wed., 19 Apr. 0.0310 0.0274 0.0294
19:01-20:00, Wed., 19 Apr. 0.0307 0.0277 0.0292
18:01-19:00, Wed., 19 Apr. 0.0306 0.0271 0.0289
17:01-18:00, Wed., 19 Apr. 0.0311 0.0275 0.0292
16:01-17:00, Wed., 19 Apr. 0.0315 0.0266 0.0289
15:01-16:00, Wed., 19 Apr. 0.0308 0.0269 0.0288
14:01-15:00, Wed., 19 Apr. 0.0302 0.0261 0.0283
13:01-14:00, Wed., 19 Apr. 0.0312 0.0267 0.0286
12:01-13:00, Wed., 19 Apr. 0.0306 0.0259 0.0287
11:01-12:00, Wed., 19 Apr. 0.0313 0.0272 0.0287
10:01-11:00, Wed., 19 Apr. 0.0309 0.0271 0.0290
09:01-10:00, Wed., 19 Apr. 0.0309 0.0271 0.0288
08:01-09:00, Wed., 19 Apr. 0.0307 0.0268 0.0285
07:01-08:00, Wed., 19 Apr. 0.0305 0.0268 0.0286
06:01-07:00, Wed., 19 Apr. 0.0304 0.0265 0.0283
05:01-06:00, Wed., 19 Apr. 0.0311 0.0262 0.0286
04:01-05:00, Wed., 19 Apr. 0.0308 0.0269 0.0288
03:01-04:00, Wed., 19 Apr. 0.0301 0.0264 0.0284
02:01-03:00, Wed., 19 Apr. 0.0314 0.0264 0.0285
01:01-02:00, Wed., 19 Apr. 0.0297 0.0266 0.0283
00:01-01:00, Wed., 19 Apr. 0.0303 0.0264 0.0285
23:01-24:00, Tue., 18 Apr. 0.0296 0.0256 0.0284
22:01-23:00, Tue., 18 Apr. 0.0306 0.0267 0.0283
21:01-22:00, Tue., 18 Apr. 0.0309 0.0266 0.0283
20:01-21:00, Tue., 18 Apr. 0.0301 0.0265 0.0286
19:01-20:00, Tue., 18 Apr. 0.0302 0.0263 0.0283
18:01-19:00, Tue., 18 Apr. 0.0298 0.0266 0.0281
17:01-18:00, Tue., 18 Apr. 0.0301 0.0267 0.0282
16:01-17:00, Tue., 18 Apr. 0.0300 0.0268 0.0284
15:01-16:00, Tue., 18 Apr. 0.0304 0.0262 0.0283
14:01-15:00, Tue., 18 Apr. 0.0301 0.0265 0.0283
13:01-14:00, Tue., 18 Apr. 0.0300 0.0265 0.0282
12:01-13:00, Tue., 18 Apr. 0.0307 0.0264 0.0285
11:01-12:00, Tue., 18 Apr. 0.0304 0.0263 0.0281
10:01-11:00, Tue., 18 Apr. 0.0305 0.0271 0.0287
09:01-10:00, Tue., 18 Apr. 0.0317 0.0269 0.0288
08:01-09:00, Tue., 18 Apr. 0.0322 0.0280 0.0302
07:01-08:00, Tue., 18 Apr. 0.0416 0.0307 0.0358
06:01-07:00, Tue., 18 Apr. 0.0497 0.0376 0.0435
05:01-06:00, Tue., 18 Apr. 0.0409 0.0308 0.0342
04:01-05:00, Tue., 18 Apr. 0.0335 0.0300 0.0317
03:01-04:00, Tue., 18 Apr. 0.0364 0.0309 0.0339
02:01-03:00, Tue., 18 Apr. 0.0393 0.0330 0.0362
01:01-02:00, Tue., 18 Apr. 0.0407 0.0340 0.0373
00:01-01:00, Tue., 18 Apr. 0.0441 0.0360 0.0383
23:01-24:00, Mon., 17 Apr. 0.0421 0.0362 0.0385
22:01-23:00, Mon., 17 Apr. 0.0390 0.0339 0.0365
21:01-22:00, Mon., 17 Apr. 0.0363 0.0310 0.0331
20:01-21:00, Mon., 17 Apr. 0.0339 0.0301 0.0318
19:01-20:00, Mon., 17 Apr. 0.0353 0.0308 0.0327
18:01-19:00, Mon., 17 Apr. 0.0348 0.0291 0.0327
17:01-18:00, Mon., 17 Apr. 0.0331 0.0275 0.0305
16:01-17:00, Mon., 17 Apr. 0.0313 0.0276 0.0293
15:01-16:00, Mon., 17 Apr. 0.0308 0.0276 0.0290
14:01-15:00, Mon., 17 Apr. 0.0323 0.0268 0.0293
13:01-14:00, Mon., 17 Apr. 0.0318 0.0272 0.0291
12:01-13:00, Mon., 17 Apr. 0.0313 0.0276 0.0294
11:01-12:00, Mon., 17 Apr. 0.0311 0.0271 0.0292
10:01-11:00, Mon., 17 Apr. 0.0318 0.0278 0.0296
09:01-10:00, Mon., 17 Apr. 0.0317 0.0283 0.0299
08:01-09:00, Mon., 17 Apr. 0.0325 0.0285 0.0301
07:01-08:00, Mon., 17 Apr. 0.0334 0.0276 0.0307
06:01-07:00, Mon., 17 Apr. 0.0333 0.0283 0.0308
05:01-06:00, Mon., 17 Apr. 0.0322 0.0284 0.0303
04:01-05:00, Mon., 17 Apr. 0.0342 0.0280 0.0304
03:01-04:00, Mon., 17 Apr. 0.0325 0.0282 0.0305
02:01-03:00, Mon., 17 Apr. 0.0318 0.0285 0.0301
01:01-02:00, Mon., 17 Apr. 0.0328 0.0283 0.0300
00:01-01:00, Mon., 17 Apr. 0.0319 0.0285 0.0302