Measurement results by the hour (Chofu) 24 Apr., 2017 - 30 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., 30 Apr. 0.0339 0.0293 0.0315
22:01-23:00, Sun., 30 Apr. 0.0327 0.0284 0.0308
21:01-22:00, Sun., 30 Apr. 0.0321 0.0283 0.0304
20:01-21:00, Sun., 30 Apr. 0.0317 0.0278 0.0298
19:01-20:00, Sun., 30 Apr. 0.0324 0.0278 0.0296
18:01-19:00, Sun., 30 Apr. 0.0322 0.0279 0.0296
17:01-18:00, Sun., 30 Apr. 0.0320 0.0279 0.0297
16:01-17:00, Sun., 30 Apr. 0.0314 0.0271 0.0296
15:01-16:00, Sun., 30 Apr. 0.0312 0.0274 0.0297
14:01-15:00, Sun., 30 Apr. 0.0314 0.0279 0.0297
13:01-14:00, Sun., 30 Apr. 0.0314 0.0280 0.0294
12:01-13:00, Sun., 30 Apr. 0.0315 0.0277 0.0295
11:01-12:00, Sun., 30 Apr. 0.0307 0.0275 0.0293
10:01-11:00, Sun., 30 Apr. 0.0314 0.0274 0.0294
09:01-10:00, Sun., 30 Apr. 0.0311 0.0279 0.0296
08:01-09:00, Sun., 30 Apr. 0.0325 0.0284 0.0302
07:01-08:00, Sun., 30 Apr. 0.0332 0.0287 0.0308
06:01-07:00, Sun., 30 Apr. 0.0330 0.0293 0.0312
05:01-06:00, Sun., 30 Apr. 0.0332 0.0283 0.0310
04:01-05:00, Sun., 30 Apr. 0.0323 0.0290 0.0306
03:01-04:00, Sun., 30 Apr. 0.0324 0.0287 0.0307
02:01-03:00, Sun., 30 Apr. 0.0327 0.0282 0.0305
01:01-02:00, Sun., 30 Apr. 0.0324 0.0283 0.0301
00:01-01:00, Sun., 30 Apr. 0.0315 0.0272 0.0299
23:01-24:00, Sat., 29 Apr. 0.0318 0.0279 0.0300
22:01-23:00, Sat., 29 Apr. 0.0313 0.0275 0.0296
21:01-22:00, Sat., 29 Apr. 0.0322 0.0276 0.0299
20:01-21:00, Sat., 29 Apr. 0.0319 0.0278 0.0298
19:01-20:00, Sat., 29 Apr. 0.0319 0.0270 0.0297
18:01-19:00, Sat., 29 Apr. 0.0325 0.0277 0.0301
17:01-18:00, Sat., 29 Apr. 0.0343 0.0292 0.0313
16:01-17:00, Sat., 29 Apr. 0.0426 0.0330 0.0370
15:01-16:00, Sat., 29 Apr. 0.0475 0.0283 0.0379
14:01-15:00, Sat., 29 Apr. 0.0319 0.0276 0.0298
13:01-14:00, Sat., 29 Apr. 0.0310 0.0268 0.0292
12:01-13:00, Sat., 29 Apr. 0.0314 0.0273 0.0294
11:01-12:00, Sat., 29 Apr. 0.0312 0.0273 0.0294
10:01-11:00, Sat., 29 Apr. 0.0319 0.0280 0.0296
09:01-10:00, Sat., 29 Apr. 0.0321 0.0277 0.0296
08:01-09:00, Sat., 29 Apr. 0.0322 0.0280 0.0298
07:01-08:00, Sat., 29 Apr. 0.0318 0.0280 0.0299
06:01-07:00, Sat., 29 Apr. 0.0324 0.0288 0.0304
05:01-06:00, Sat., 29 Apr. 0.0319 0.0281 0.0300
04:01-05:00, Sat., 29 Apr. 0.0322 0.0277 0.0298
03:01-04:00, Sat., 29 Apr. 0.0315 0.0264 0.0295
02:01-03:00, Sat., 29 Apr. 0.0321 0.0275 0.0296
01:01-02:00, Sat., 29 Apr. 0.0323 0.0279 0.0295
00:01-01:00, Sat., 29 Apr. 0.0314 0.0274 0.0292
23:01-24:00, Fri., 28 Apr. 0.0322 0.0271 0.0293
22:01-23:00, Fri., 28 Apr. 0.0313 0.0267 0.0290
21:01-22:00, Fri., 28 Apr. 0.0309 0.0276 0.0291
20:01-21:00, Fri., 28 Apr. 0.0315 0.0270 0.0290
19:01-20:00, Fri., 28 Apr. 0.0307 0.0268 0.0290
18:01-19:00, Fri., 28 Apr. 0.0307 0.0266 0.0290
17:01-18:00, Fri., 28 Apr. 0.0317 0.0268 0.0289
16:01-17:00, Fri., 28 Apr. 0.0306 0.0274 0.0290
15:01-16:00, Fri., 28 Apr. 0.0314 0.0262 0.0288
14:01-15:00, Fri., 28 Apr. 0.0308 0.0271 0.0288
13:01-14:00, Fri., 28 Apr. 0.0305 0.0271 0.0289
12:01-13:00, Fri., 28 Apr. 0.0315 0.0271 0.0289
11:01-12:00, Fri., 28 Apr. 0.0310 0.0270 0.0291
10:01-11:00, Fri., 28 Apr. 0.0314 0.0281 0.0294
09:01-10:00, Fri., 28 Apr. 0.0314 0.0276 0.0294
08:01-09:00, Fri., 28 Apr. 0.0318 0.0280 0.0300
07:01-08:00, Fri., 28 Apr. 0.0320 0.0280 0.0300
06:01-07:00, Fri., 28 Apr. 0.0321 0.0277 0.0299
05:01-06:00, Fri., 28 Apr. 0.0320 0.0276 0.0298
04:01-05:00, Fri., 28 Apr. 0.0315 0.0280 0.0295
03:01-04:00, Fri., 28 Apr. 0.0320 0.0280 0.0296
02:01-03:00, Fri., 28 Apr. 0.0316 0.0279 0.0295
01:01-02:00, Fri., 28 Apr. 0.0308 0.0271 0.0292
00:01-01:00, Fri., 28 Apr. 0.0306 0.0271 0.0289
23:01-24:00, Thu., 27 Apr. 0.0309 0.0267 0.0290
22:01-23:00, Thu., 27 Apr. 0.0308 0.0266 0.0287
21:01-22:00, Thu., 27 Apr. 0.0312 0.0272 0.0289
20:01-21:00, Thu., 27 Apr. 0.0316 0.0268 0.0289
19:01-20:00, Thu., 27 Apr. 0.0311 0.0264 0.0287
18:01-19:00, Thu., 27 Apr. 0.0306 0.0270 0.0291
17:01-18:00, Thu., 27 Apr. 0.0312 0.0272 0.0290
16:01-17:00, Thu., 27 Apr. 0.0304 0.0271 0.0288
15:01-16:00, Thu., 27 Apr. 0.0304 0.0267 0.0285
14:01-15:00, Thu., 27 Apr. 0.0307 0.0269 0.0289
13:01-14:00, Thu., 27 Apr. 0.0310 0.0272 0.0288
12:01-13:00, Thu., 27 Apr. 0.0322 0.0273 0.0288
11:01-12:00, Thu., 27 Apr. 0.0306 0.0272 0.0289
10:01-11:00, Thu., 27 Apr. 0.0319 0.0275 0.0292
09:01-10:00, Thu., 27 Apr. 0.0308 0.0276 0.0293
08:01-09:00, Thu., 27 Apr. 0.0319 0.0276 0.0295
07:01-08:00, Thu., 27 Apr. 0.0319 0.0286 0.0300
06:01-07:00, Thu., 27 Apr. 0.0344 0.0292 0.0318
05:01-06:00, Thu., 27 Apr. 0.0352 0.0312 0.0328
04:01-05:00, Thu., 27 Apr. 0.0334 0.0289 0.0307
03:01-04:00, Thu., 27 Apr. 0.0323 0.0275 0.0302
02:01-03:00, Thu., 27 Apr. 0.0324 0.0280 0.0305
01:01-02:00, Thu., 27 Apr. 0.0301 0.0270 0.0287
00:01-01:00, Thu., 27 Apr. 0.0301 0.0268 0.0286
23:01-24:00, Wed., 26 Apr. 0.0294 0.0271 0.0283
22:01-23:00, Wed., 26 Apr. 0.0314 0.0265 0.0282
21:01-22:00, Wed., 26 Apr. 0.0304 0.0262 0.0284
20:01-21:00, Wed., 26 Apr. 0.0307 0.0262 0.0284
19:01-20:00, Wed., 26 Apr. 0.0301 0.0265 0.0284
18:01-19:00, Wed., 26 Apr. 0.0307 0.0258 0.0284
17:01-18:00, Wed., 26 Apr. 0.0305 0.0266 0.0284
16:01-17:00, Wed., 26 Apr. 0.0317 0.0267 0.0285
15:01-16:00, Wed., 26 Apr. 0.0304 0.0268 0.0285
14:01-15:00, Wed., 26 Apr. 0.0300 0.0266 0.0282
13:01-14:00, Wed., 26 Apr. 0.0300 0.0266 0.0283
12:01-13:00, Wed., 26 Apr. 0.0310 0.0268 0.0286
11:01-12:00, Wed., 26 Apr. 0.0303 0.0260 0.0283
10:01-11:00, Wed., 26 Apr. 0.0313 0.0260 0.0283
09:01-10:00, Wed., 26 Apr. 0.0304 0.0264 0.0283
08:01-09:00, Wed., 26 Apr. 0.0304 0.0264 0.0282
07:01-08:00, Wed., 26 Apr. 0.0309 0.0265 0.0285
06:01-07:00, Wed., 26 Apr. 0.0309 0.0262 0.0288
05:01-06:00, Wed., 26 Apr. 0.0311 0.0263 0.0287
04:01-05:00, Wed., 26 Apr. 0.0312 0.0275 0.0290
03:01-04:00, Wed., 26 Apr. 0.0307 0.0272 0.0288
02:01-03:00, Wed., 26 Apr. 0.0306 0.0259 0.0284
01:01-02:00, Wed., 26 Apr. 0.0305 0.0265 0.0285
00:01-01:00, Wed., 26 Apr. 0.0300 0.0258 0.0282
23:01-24:00, Tue., 25 Apr. 0.0300 0.0263 0.0282
22:01-23:00, Tue., 25 Apr. 0.0309 0.0263 0.0280
21:01-22:00, Tue., 25 Apr. 0.0307 0.0263 0.0281
20:01-21:00, Tue., 25 Apr. 0.0300 0.0262 0.0284
19:01-20:00, Tue., 25 Apr. 0.0307 0.0256 0.0281
18:01-19:00, Tue., 25 Apr. 0.0299 0.0260 0.0282
17:01-18:00, Tue., 25 Apr. 0.0306 0.0257 0.0281
16:01-17:00, Tue., 25 Apr. 0.0313 0.0254 0.0279
15:01-16:00, Tue., 25 Apr. 0.0297 0.0261 0.0280
14:01-15:00, Tue., 25 Apr. 0.0303 0.0268 0.0282
13:01-14:00, Tue., 25 Apr. 0.0294 0.0257 0.0279
12:01-13:00, Tue., 25 Apr. 0.0298 0.0260 0.0279
11:01-12:00, Tue., 25 Apr. 0.0301 0.0262 0.0281
10:01-11:00, Tue., 25 Apr. 0.0302 0.0258 0.0282
09:01-10:00, Tue., 25 Apr. 0.0300 0.0263 0.0282
08:01-09:00, Tue., 25 Apr. 0.0304 0.0262 0.0283
07:01-08:00, Tue., 25 Apr. 0.0315 0.0263 0.0290
06:01-07:00, Tue., 25 Apr. 0.0310 0.0281 0.0298
05:01-06:00, Tue., 25 Apr. 0.0317 0.0272 0.0293
04:01-05:00, Tue., 25 Apr. 0.0315 0.0268 0.0285
03:01-04:00, Tue., 25 Apr. 0.0307 0.0263 0.0283
02:01-03:00, Tue., 25 Apr. 0.0303 0.0267 0.0284
01:01-02:00, Tue., 25 Apr. 0.0310 0.0261 0.0282
00:01-01:00, Tue., 25 Apr. 0.0302 0.0252 0.0281
23:01-24:00, Mon., 24 Apr. 0.0303 0.0265 0.0282
22:01-23:00, Mon., 24 Apr. 0.0311 0.0261 0.0284
21:01-22:00, Mon., 24 Apr. 0.0300 0.0262 0.0281
20:01-21:00, Mon., 24 Apr. 0.0302 0.0252 0.0279
19:01-20:00, Mon., 24 Apr. 0.0298 0.0263 0.0279
18:01-19:00, Mon., 24 Apr. 0.0297 0.0264 0.0280
17:01-18:00, Mon., 24 Apr. 0.0299 0.0264 0.0282
16:01-17:00, Mon., 24 Apr. 0.0297 0.0261 0.0278
15:01-16:00, Mon., 24 Apr. 0.0298 0.0263 0.0279
14:01-15:00, Mon., 24 Apr. 0.0298 0.0254 0.0278
13:01-14:00, Mon., 24 Apr. 0.0296 0.0264 0.0281
12:01-13:00, Mon., 24 Apr. 0.0298 0.0261 0.0282
11:01-12:00, Mon., 24 Apr. 0.0304 0.0265 0.0284
10:01-11:00, Mon., 24 Apr. 0.0311 0.0266 0.0281
09:01-10:00, Mon., 24 Apr. 0.0308 0.0268 0.0285
08:01-09:00, Mon., 24 Apr. 0.0306 0.0266 0.0284
07:01-08:00, Mon., 24 Apr. 0.0302 0.0262 0.0285
06:01-07:00, Mon., 24 Apr. 0.0301 0.0266 0.0286
05:01-06:00, Mon., 24 Apr. 0.0305 0.0273 0.0285
04:01-05:00, Mon., 24 Apr. 0.0303 0.0266 0.0285
03:01-04:00, Mon., 24 Apr. 0.0300 0.0264 0.0283
02:01-03:00, Mon., 24 Apr. 0.0302 0.0263 0.0280
01:01-02:00, Mon., 24 Apr. 0.0298 0.0265 0.0282
00:01-01:00, Mon., 24 Apr. 0.0299 0.0261 0.0281