Measurement results by the hour (Chofu) 31 Jul., 2017 - 6 Aug., 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., 06 Aug. 0.0302 0.0259 0.0284
22:01-23:00, Sun., 06 Aug. 0.0306 0.0265 0.0283
21:01-22:00, Sun., 06 Aug. 0.0307 0.0256 0.0284
20:01-21:00, Sun., 06 Aug. 0.0304 0.0269 0.0284
19:01-20:00, Sun., 06 Aug. 0.0302 0.0267 0.0283
18:01-19:00, Sun., 06 Aug. 0.0298 0.0259 0.0282
17:01-18:00, Sun., 06 Aug. 0.0305 0.0269 0.0285
16:01-17:00, Sun., 06 Aug. 0.0298 0.0250 0.0278
15:01-16:00, Sun., 06 Aug. 0.0297 0.0262 0.0280
14:01-15:00, Sun., 06 Aug. 0.0301 0.0263 0.0281
13:01-14:00, Sun., 06 Aug. 0.0303 0.0261 0.0281
12:01-13:00, Sun., 06 Aug. 0.0303 0.0264 0.0282
11:01-12:00, Sun., 06 Aug. 0.0299 0.0267 0.0281
10:01-11:00, Sun., 06 Aug. 0.0304 0.0257 0.0282
09:01-10:00, Sun., 06 Aug. 0.0302 0.0264 0.0281
08:01-09:00, Sun., 06 Aug. 0.0306 0.0260 0.0282
07:01-08:00, Sun., 06 Aug. 0.0303 0.0266 0.0283
06:01-07:00, Sun., 06 Aug. 0.0301 0.0263 0.0282
05:01-06:00, Sun., 06 Aug. 0.0301 0.0258 0.0281
04:01-05:00, Sun., 06 Aug. 0.0302 0.0259 0.0281
03:01-04:00, Sun., 06 Aug. 0.0298 0.0258 0.0279
02:01-03:00, Sun., 06 Aug. 0.0300 0.0257 0.0279
01:01-02:00, Sun., 06 Aug. 0.0295 0.0262 0.0280
00:01-01:00, Sun., 06 Aug. 0.0294 0.0264 0.0279
23:01-24:00, Sat., 05 Aug. 0.0304 0.0256 0.0278
22:01-23:00, Sat., 05 Aug. 0.0300 0.0264 0.0281
21:01-22:00, Sat., 05 Aug. 0.0295 0.0263 0.0280
20:01-21:00, Sat., 05 Aug. 0.0299 0.0263 0.0279
19:01-20:00, Sat., 05 Aug. 0.0302 0.0260 0.0280
18:01-19:00, Sat., 05 Aug. 0.0298 0.0259 0.0279
17:01-18:00, Sat., 05 Aug. 0.0301 0.0261 0.0278
16:01-17:00, Sat., 05 Aug. 0.0297 0.0264 0.0281
15:01-16:00, Sat., 05 Aug. 0.0302 0.0261 0.0283
14:01-15:00, Sat., 05 Aug. 0.0297 0.0262 0.0280
13:01-14:00, Sat., 05 Aug. 0.0304 0.0266 0.0285
12:01-13:00, Sat., 05 Aug. 0.0305 0.0264 0.0282
11:01-12:00, Sat., 05 Aug. 0.0305 0.0267 0.0283
10:01-11:00, Sat., 05 Aug. 0.0297 0.0259 0.0281
09:01-10:00, Sat., 05 Aug. 0.0301 0.0266 0.0283
08:01-09:00, Sat., 05 Aug. 0.0303 0.0255 0.0283
07:01-08:00, Sat., 05 Aug. 0.0311 0.0266 0.0285
06:01-07:00, Sat., 05 Aug. 0.0306 0.0270 0.0283
05:01-06:00, Sat., 05 Aug. 0.0311 0.0264 0.0285
04:01-05:00, Sat., 05 Aug. 0.0306 0.0262 0.0285
03:01-04:00, Sat., 05 Aug. 0.0306 0.0265 0.0281
02:01-03:00, Sat., 05 Aug. 0.0304 0.0264 0.0281
01:01-02:00, Sat., 05 Aug. 0.0309 0.0261 0.0285
00:01-01:00, Sat., 05 Aug. 0.0300 0.0259 0.0282
23:01-24:00, Fri., 04 Aug. 0.0297 0.0263 0.0280
22:01-23:00, Fri., 04 Aug. 0.0302 0.0259 0.0279
21:01-22:00, Fri., 04 Aug. 0.0301 0.0264 0.0279
20:01-21:00, Fri., 04 Aug. 0.0292 0.0256 0.0276
19:01-20:00, Fri., 04 Aug. 0.0293 0.0263 0.0276
18:01-19:00, Fri., 04 Aug. 0.0298 0.0259 0.0278
17:01-18:00, Fri., 04 Aug. 0.0299 0.0264 0.0279
16:01-17:00, Fri., 04 Aug. 0.0299 0.0258 0.0280
15:01-16:00, Fri., 04 Aug. 0.0296 0.0260 0.0277
14:01-15:00, Fri., 04 Aug. 0.0293 0.0263 0.0277
13:01-14:00, Fri., 04 Aug. 0.0296 0.0260 0.0277
12:01-13:00, Fri., 04 Aug. 0.0292 0.0259 0.0276
11:01-12:00, Fri., 04 Aug. 0.0294 0.0258 0.0276
10:01-11:00, Fri., 04 Aug. 0.0293 0.0251 0.0275
09:01-10:00, Fri., 04 Aug. 0.0298 0.0260 0.0277
08:01-09:00, Fri., 04 Aug. 0.0299 0.0253 0.0275
07:01-08:00, Fri., 04 Aug. 0.0295 0.0258 0.0276
06:01-07:00, Fri., 04 Aug. 0.0293 0.0255 0.0278
05:01-06:00, Fri., 04 Aug. 0.0297 0.0256 0.0276
04:01-05:00, Fri., 04 Aug. 0.0299 0.0261 0.0278
03:01-04:00, Fri., 04 Aug. 0.0295 0.0266 0.0279
02:01-03:00, Fri., 04 Aug. 0.0299 0.0259 0.0278
01:01-02:00, Fri., 04 Aug. 0.0291 0.0254 0.0276
00:01-01:00, Fri., 04 Aug. 0.0294 0.0261 0.0277
23:01-24:00, Thu., 03 Aug. 0.0296 0.0257 0.0278
22:01-23:00, Thu., 03 Aug. 0.0291 0.0256 0.0278
21:01-22:00, Thu., 03 Aug. 0.0294 0.0257 0.0276
20:01-21:00, Thu., 03 Aug. 0.0300 0.0260 0.0277
19:01-20:00, Thu., 03 Aug. 0.0298 0.0255 0.0278
18:01-19:00, Thu., 03 Aug. 0.0299 0.0256 0.0277
17:01-18:00, Thu., 03 Aug. 0.0295 0.0256 0.0277
16:01-17:00, Thu., 03 Aug. 0.0288 0.0256 0.0276
15:01-16:00, Thu., 03 Aug. 0.0292 0.0254 0.0275
14:01-15:00, Thu., 03 Aug. 0.0294 0.0254 0.0275
13:01-14:00, Thu., 03 Aug. 0.0302 0.0258 0.0278
12:01-13:00, Thu., 03 Aug. 0.0296 0.0262 0.0278
11:01-12:00, Thu., 03 Aug. 0.0298 0.0256 0.0276
10:01-11:00, Thu., 03 Aug. 0.0290 0.0260 0.0276
09:01-10:00, Thu., 03 Aug. 0.0290 0.0255 0.0274
08:01-09:00, Thu., 03 Aug. 0.0293 0.0254 0.0276
07:01-08:00, Thu., 03 Aug. 0.0295 0.0260 0.0277
06:01-07:00, Thu., 03 Aug. 0.0293 0.0256 0.0274
05:01-06:00, Thu., 03 Aug. 0.0299 0.0260 0.0274
04:01-05:00, Thu., 03 Aug. 0.0300 0.0255 0.0272
03:01-04:00, Thu., 03 Aug. 0.0295 0.0251 0.0273
02:01-03:00, Thu., 03 Aug. 0.0299 0.0256 0.0273
01:01-02:00, Thu., 03 Aug. 0.0293 0.0253 0.0274
00:01-01:00, Thu., 03 Aug. 0.0293 0.0253 0.0271
23:01-24:00, Wed., 02 Aug. 0.0295 0.0253 0.0271
22:01-23:00, Wed., 02 Aug. 0.0292 0.0255 0.0273
21:01-22:00, Wed., 02 Aug. 0.0289 0.0259 0.0272
20:01-21:00, Wed., 02 Aug. 0.0300 0.0250 0.0276
19:01-20:00, Wed., 02 Aug. 0.0309 0.0261 0.0282
18:01-19:00, Wed., 02 Aug. 0.0350 0.0284 0.0313
17:01-18:00, Wed., 02 Aug. 0.0363 0.0312 0.0338
16:01-17:00, Wed., 02 Aug. 0.0351 0.0286 0.0313
15:01-16:00, Wed., 02 Aug. 0.0318 0.0273 0.0290
14:01-15:00, Wed., 02 Aug. 0.0315 0.0272 0.0293
13:01-14:00, Wed., 02 Aug. 0.0298 0.0264 0.0281
12:01-13:00, Wed., 02 Aug. 0.0309 0.0268 0.0288
11:01-12:00, Wed., 02 Aug. 0.0320 0.0264 0.0288
10:01-11:00, Wed., 02 Aug. 0.0297 0.0261 0.0274
09:01-10:00, Wed., 02 Aug. 0.0284 0.0255 0.0271
08:01-09:00, Wed., 02 Aug. 0.0297 0.0255 0.0271
07:01-08:00, Wed., 02 Aug. 0.0284 0.0252 0.0270
06:01-07:00, Wed., 02 Aug. 0.0292 0.0255 0.0273
05:01-06:00, Wed., 02 Aug. 0.0289 0.0249 0.0272
04:01-05:00, Wed., 02 Aug. 0.0290 0.0256 0.0270
03:01-04:00, Wed., 02 Aug. 0.0287 0.0261 0.0273
02:01-03:00, Wed., 02 Aug. 0.0285 0.0255 0.0271
01:01-02:00, Wed., 02 Aug. 0.0291 0.0253 0.0273
00:01-01:00, Wed., 02 Aug. 0.0299 0.0256 0.0278
23:01-24:00, Tue., 01 Aug. 0.0324 0.0279 0.0301
22:01-23:00, Tue., 01 Aug. 0.0411 0.0300 0.0348
21:01-22:00, Tue., 01 Aug. 0.0394 0.0294 0.0338
20:01-21:00, Tue., 01 Aug. 0.0357 0.0283 0.0314
19:01-20:00, Tue., 01 Aug. 0.0498 0.0333 0.0397
18:01-19:00, Tue., 01 Aug. 0.0616 0.0451 0.0538
17:01-18:00, Tue., 01 Aug. 0.0748 0.0594 0.0662
16:01-17:00, Tue., 01 Aug. 0.0772 0.0420 0.0603
15:01-16:00, Tue., 01 Aug. 0.0452 0.0272 0.0333
14:01-15:00, Tue., 01 Aug. 0.0309 0.0275 0.0287
13:01-14:00, Tue., 01 Aug. 0.0309 0.0263 0.0282
12:01-13:00, Tue., 01 Aug. 0.0297 0.0265 0.0281
11:01-12:00, Tue., 01 Aug. 0.0302 0.0263 0.0281
10:01-11:00, Tue., 01 Aug. 0.0301 0.0262 0.0282
09:01-10:00, Tue., 01 Aug. 0.0307 0.0268 0.0287
08:01-09:00, Tue., 01 Aug. 0.0308 0.0271 0.0288
07:01-08:00, Tue., 01 Aug. 0.0313 0.0271 0.0292
06:01-07:00, Tue., 01 Aug. 0.0318 0.0275 0.0294
05:01-06:00, Tue., 01 Aug. 0.0308 0.0265 0.0283
04:01-05:00, Tue., 01 Aug. 0.0309 0.0261 0.0279
03:01-04:00, Tue., 01 Aug. 0.0299 0.0260 0.0280
02:01-03:00, Tue., 01 Aug. 0.0299 0.0252 0.0280
01:01-02:00, Tue., 01 Aug. 0.0299 0.0259 0.0279
00:01-01:00, Tue., 01 Aug. 0.0295 0.0253 0.0278
23:01-24:00, Mon., 31 Jul. 0.0293 0.0257 0.0276
22:01-23:00, Mon., 31 Jul. 0.0300 0.0262 0.0279
21:01-22:00, Mon., 31 Jul. 0.0293 0.0258 0.0278
20:01-21:00, Mon., 31 Jul. 0.0301 0.0261 0.0279
19:01-20:00, Mon., 31 Jul. 0.0296 0.0264 0.0278
18:01-19:00, Mon., 31 Jul. 0.0297 0.0265 0.0280
17:01-18:00, Mon., 31 Jul. 0.0301 0.0259 0.0280
16:01-17:00, Mon., 31 Jul. 0.0294 0.0258 0.0279
15:01-16:00, Mon., 31 Jul. 0.0297 0.0259 0.0277
14:01-15:00, Mon., 31 Jul. 0.0301 0.0260 0.0279
13:01-14:00, Mon., 31 Jul. 0.0295 0.0260 0.0278
12:01-13:00, Mon., 31 Jul. 0.0297 0.0262 0.0279
11:01-12:00, Mon., 31 Jul. 0.0296 0.0256 0.0280
10:01-11:00, Mon., 31 Jul. 0.0304 0.0256 0.0278
09:01-10:00, Mon., 31 Jul. 0.0292 0.0255 0.0276
08:01-09:00, Mon., 31 Jul. 0.0301 0.0262 0.0282
07:01-08:00, Mon., 31 Jul. 0.0296 0.0261 0.0279
06:01-07:00, Mon., 31 Jul. 0.0300 0.0261 0.0281
05:01-06:00, Mon., 31 Jul. 0.0301 0.0263 0.0282
04:01-05:00, Mon., 31 Jul. 0.0301 0.0262 0.0279
03:01-04:00, Mon., 31 Jul. 0.0294 0.0257 0.0279
02:01-03:00, Mon., 31 Jul. 0.0305 0.0264 0.0284
01:01-02:00, Mon., 31 Jul. 0.0300 0.0267 0.0283
00:01-01:00, Mon., 31 Jul. 0.0300 0.0266 0.0284