Measurement results by the hour (Chofu) 27 Feb., 2017 - 5 Mar., 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., 05 Mar. 0.0312 0.0274 0.0292
22:01-23:00, Sun., 05 Mar. 0.0322 0.0277 0.0298
21:01-22:00, Sun., 05 Mar. 0.0312 0.0267 0.0291
20:01-21:00, Sun., 05 Mar. 0.0310 0.0276 0.0293
19:01-20:00, Sun., 05 Mar. 0.0310 0.0269 0.0291
18:01-19:00, Sun., 05 Mar. 0.0314 0.0273 0.0292
17:01-18:00, Sun., 05 Mar. 0.0317 0.0271 0.0290
16:01-17:00, Sun., 05 Mar. 0.0305 0.0275 0.0288
15:01-16:00, Sun., 05 Mar. 0.0317 0.0268 0.0290
14:01-15:00, Sun., 05 Mar. 0.0309 0.0272 0.0291
13:01-14:00, Sun., 05 Mar. 0.0308 0.0263 0.0289
12:01-13:00, Sun., 05 Mar. 0.0317 0.0272 0.0293
11:01-12:00, Sun., 05 Mar. 0.0318 0.0281 0.0297
10:01-11:00, Sun., 05 Mar. 0.0322 0.0278 0.0299
09:01-10:00, Sun., 05 Mar. 0.0320 0.0288 0.0304
08:01-09:00, Sun., 05 Mar. 0.0329 0.0283 0.0309
07:01-08:00, Sun., 05 Mar. 0.0341 0.0296 0.0316
06:01-07:00, Sun., 05 Mar. 0.0330 0.0291 0.0311
05:01-06:00, Sun., 05 Mar. 0.0325 0.0286 0.0305
04:01-05:00, Sun., 05 Mar. 0.0323 0.0285 0.0306
03:01-04:00, Sun., 05 Mar. 0.0321 0.0285 0.0301
02:01-03:00, Sun., 05 Mar. 0.0322 0.0281 0.0301
01:01-02:00, Sun., 05 Mar. 0.0312 0.0275 0.0296
00:01-01:00, Sun., 05 Mar. 0.0320 0.0283 0.0297
23:01-24:00, Sat., 04 Mar. 0.0317 0.0275 0.0293
22:01-23:00, Sat., 04 Mar. 0.0321 0.0277 0.0292
21:01-22:00, Sat., 04 Mar. 0.0311 0.0272 0.0292
20:01-21:00, Sat., 04 Mar. 0.0309 0.0272 0.0288
19:01-20:00, Sat., 04 Mar. 0.0320 0.0276 0.0289
18:01-19:00, Sat., 04 Mar. 0.0306 0.0268 0.0287
17:01-18:00, Sat., 04 Mar. 0.0304 0.0264 0.0286
16:01-17:00, Sat., 04 Mar. 0.0307 0.0267 0.0286
15:01-16:00, Sat., 04 Mar. 0.0303 0.0260 0.0286
14:01-15:00, Sat., 04 Mar. 0.0310 0.0269 0.0287
13:01-14:00, Sat., 04 Mar. 0.0308 0.0267 0.0287
12:01-13:00, Sat., 04 Mar. 0.0305 0.0268 0.0289
11:01-12:00, Sat., 04 Mar. 0.0306 0.0262 0.0286
10:01-11:00, Sat., 04 Mar. 0.0306 0.0273 0.0290
09:01-10:00, Sat., 04 Mar. 0.0308 0.0270 0.0290
08:01-09:00, Sat., 04 Mar. 0.0307 0.0272 0.0290
07:01-08:00, Sat., 04 Mar. 0.0314 0.0266 0.0290
06:01-07:00, Sat., 04 Mar. 0.0307 0.0271 0.0289
05:01-06:00, Sat., 04 Mar. 0.0304 0.0270 0.0289
04:01-05:00, Sat., 04 Mar. 0.0306 0.0272 0.0289
03:01-04:00, Sat., 04 Mar. 0.0304 0.0266 0.0288
02:01-03:00, Sat., 04 Mar. 0.0305 0.0272 0.0287
01:01-02:00, Sat., 04 Mar. 0.0307 0.0270 0.0289
00:01-01:00, Sat., 04 Mar. 0.0316 0.0270 0.0289
23:01-24:00, Fri., 03 Mar. 0.0305 0.0267 0.0289
22:01-23:00, Fri., 03 Mar. 0.0305 0.0272 0.0288
21:01-22:00, Fri., 03 Mar. 0.0312 0.0257 0.0286
20:01-21:00, Fri., 03 Mar. 0.0308 0.0260 0.0285
19:01-20:00, Fri., 03 Mar. 0.0307 0.0263 0.0285
18:01-19:00, Fri., 03 Mar. 0.0303 0.0275 0.0287
17:01-18:00, Fri., 03 Mar. 0.0317 0.0259 0.0282
16:01-17:00, Fri., 03 Mar. 0.0299 0.0259 0.0281
15:01-16:00, Fri., 03 Mar. 0.0309 0.0266 0.0286
14:01-15:00, Fri., 03 Mar. 0.0306 0.0267 0.0286
13:01-14:00, Fri., 03 Mar. 0.0303 0.0273 0.0288
12:01-13:00, Fri., 03 Mar. 0.0309 0.0265 0.0286
11:01-12:00, Fri., 03 Mar. 0.0308 0.0269 0.0288
10:01-11:00, Fri., 03 Mar. 0.0308 0.0270 0.0287
09:01-10:00, Fri., 03 Mar. 0.0318 0.0280 0.0298
08:01-09:00, Fri., 03 Mar. 0.0331 0.0283 0.0302
07:01-08:00, Fri., 03 Mar. 0.0332 0.0282 0.0305
06:01-07:00, Fri., 03 Mar. 0.0331 0.0285 0.0306
05:01-06:00, Fri., 03 Mar. 0.0330 0.0289 0.0312
04:01-05:00, Fri., 03 Mar. 0.0330 0.0292 0.0311
03:01-04:00, Fri., 03 Mar. 0.0339 0.0290 0.0312
02:01-03:00, Fri., 03 Mar. 0.0346 0.0292 0.0311
01:01-02:00, Fri., 03 Mar. 0.0327 0.0293 0.0309
00:01-01:00, Fri., 03 Mar. 0.0325 0.0286 0.0304
23:01-24:00, Thu., 02 Mar. 0.0318 0.0273 0.0295
22:01-23:00, Thu., 02 Mar. 0.0301 0.0260 0.0288
21:01-22:00, Thu., 02 Mar. 0.0308 0.0263 0.0291
20:01-21:00, Thu., 02 Mar. 0.0320 0.0274 0.0296
19:01-20:00, Thu., 02 Mar. 0.0339 0.0294 0.0316
18:01-19:00, Thu., 02 Mar. 0.0374 0.0310 0.0349
17:01-18:00, Thu., 02 Mar. 0.0340 0.0294 0.0315
16:01-17:00, Thu., 02 Mar. 0.0355 0.0295 0.0327
15:01-16:00, Thu., 02 Mar. 0.0357 0.0305 0.0333
14:01-15:00, Thu., 02 Mar. 0.0401 0.0337 0.0361
13:01-14:00, Thu., 02 Mar. 0.0380 0.0317 0.0352
12:01-13:00, Thu., 02 Mar. 0.0327 0.0275 0.0297
11:01-12:00, Thu., 02 Mar. 0.0316 0.0266 0.0289
10:01-11:00, Thu., 02 Mar. 0.0310 0.0274 0.0289
09:01-10:00, Thu., 02 Mar. 0.0312 0.0273 0.0289
08:01-09:00, Thu., 02 Mar. 0.0314 0.0273 0.0290
07:01-08:00, Thu., 02 Mar. 0.0310 0.0268 0.0287
06:01-07:00, Thu., 02 Mar. 0.0305 0.0266 0.0288
05:01-06:00, Thu., 02 Mar. 0.0303 0.0266 0.0289
04:01-05:00, Thu., 02 Mar. 0.0314 0.0273 0.0292
03:01-04:00, Thu., 02 Mar. 0.0324 0.0289 0.0303
02:01-03:00, Thu., 02 Mar. 0.0369 0.0306 0.0333
01:01-02:00, Thu., 02 Mar. 0.0371 0.0323 0.0351
00:01-01:00, Thu., 02 Mar. 0.0361 0.0321 0.0343
23:01-24:00, Wed., 01 Mar. 0.0362 0.0314 0.0341
22:01-23:00, Wed., 01 Mar. 0.0367 0.0331 0.0349
21:01-22:00, Wed., 01 Mar. 0.0361 0.0322 0.0339
20:01-21:00, Wed., 01 Mar. 0.0369 0.0319 0.0345
19:01-20:00, Wed., 01 Mar. 0.0363 0.0301 0.0332
18:01-19:00, Wed., 01 Mar. 0.0338 0.0279 0.0305
17:01-18:00, Wed., 01 Mar. 0.0306 0.0264 0.0289
16:01-17:00, Wed., 01 Mar. 0.0314 0.0274 0.0291
15:01-16:00, Wed., 01 Mar. 0.0308 0.0266 0.0291
14:01-15:00, Wed., 01 Mar. 0.0313 0.0273 0.0292
13:01-14:00, Wed., 01 Mar. 0.0311 0.0272 0.0293
12:01-13:00, Wed., 01 Mar. 0.0328 0.0272 0.0294
11:01-12:00, Wed., 01 Mar. 0.0321 0.0270 0.0292
10:01-11:00, Wed., 01 Mar. 0.0313 0.0264 0.0291
09:01-10:00, Wed., 01 Mar. 0.0310 0.0273 0.0291
08:01-09:00, Wed., 01 Mar. 0.0312 0.0267 0.0290
07:01-08:00, Wed., 01 Mar. 0.0315 0.0273 0.0292
06:01-07:00, Wed., 01 Mar. 0.0307 0.0277 0.0290
05:01-06:00, Wed., 01 Mar. 0.0312 0.0280 0.0294
04:01-05:00, Wed., 01 Mar. 0.0312 0.0277 0.0291
03:01-04:00, Wed., 01 Mar. 0.0315 0.0279 0.0294
02:01-03:00, Wed., 01 Mar. 0.0306 0.0276 0.0293
01:01-02:00, Wed., 01 Mar. 0.0319 0.0267 0.0292
00:01-01:00, Wed., 01 Mar. 0.0306 0.0275 0.0290
23:01-24:00, Tue., 28 Feb. 0.0312 0.0273 0.0290
22:01-23:00, Tue., 28 Feb. 0.0312 0.0274 0.0290
21:01-22:00, Tue., 28 Feb. 0.0308 0.0272 0.0290
20:01-21:00, Tue., 28 Feb. 0.0308 0.0263 0.0290
19:01-20:00, Tue., 28 Feb. 0.0313 0.0271 0.0292
18:01-19:00, Tue., 28 Feb. 0.0311 0.0275 0.0292
17:01-18:00, Tue., 28 Feb. 0.0309 0.0264 0.0289
16:01-17:00, Tue., 28 Feb. 0.0314 0.0272 0.0292
15:01-16:00, Tue., 28 Feb. 0.0308 0.0276 0.0291
14:01-15:00, Tue., 28 Feb. 0.0314 0.0274 0.0293
13:01-14:00, Tue., 28 Feb. 0.0321 0.0270 0.0295
12:01-13:00, Tue., 28 Feb. 0.0322 0.0271 0.0294
11:01-12:00, Tue., 28 Feb. 0.0309 0.0273 0.0293
10:01-11:00, Tue., 28 Feb. 0.0315 0.0273 0.0293
09:01-10:00, Tue., 28 Feb. 0.0310 0.0278 0.0293
08:01-09:00, Tue., 28 Feb. 0.0321 0.0279 0.0293
07:01-08:00, Tue., 28 Feb. 0.0310 0.0275 0.0293
06:01-07:00, Tue., 28 Feb. 0.0313 0.0268 0.0293
05:01-06:00, Tue., 28 Feb. 0.0315 0.0271 0.0290
04:01-05:00, Tue., 28 Feb. 0.0311 0.0276 0.0291
03:01-04:00, Tue., 28 Feb. 0.0309 0.0272 0.0293
02:01-03:00, Tue., 28 Feb. 0.0307 0.0274 0.0291
01:01-02:00, Tue., 28 Feb. 0.0310 0.0268 0.0290
00:01-01:00, Tue., 28 Feb. 0.0310 0.0274 0.0290
23:01-24:00, Mon., 27 Feb. 0.0315 0.0271 0.0290
22:01-23:00, Mon., 27 Feb. 0.0319 0.0272 0.0290
21:01-22:00, Mon., 27 Feb. 0.0306 0.0273 0.0291
20:01-21:00, Mon., 27 Feb. 0.0314 0.0276 0.0293
19:01-20:00, Mon., 27 Feb. 0.0311 0.0270 0.0290
18:01-19:00, Mon., 27 Feb. 0.0310 0.0271 0.0291
17:01-18:00, Mon., 27 Feb. 0.0313 0.0276 0.0292
16:01-17:00, Mon., 27 Feb. 0.0316 0.0272 0.0294
15:01-16:00, Mon., 27 Feb. 0.0321 0.0272 0.0296
14:01-15:00, Mon., 27 Feb. 0.0318 0.0271 0.0296
13:01-14:00, Mon., 27 Feb. 0.0314 0.0275 0.0296
12:01-13:00, Mon., 27 Feb. 0.0315 0.0276 0.0297
11:01-12:00, Mon., 27 Feb. 0.0326 0.0284 0.0299
10:01-11:00, Mon., 27 Feb. 0.0317 0.0276 0.0297
09:01-10:00, Mon., 27 Feb. 0.0318 0.0274 0.0298
08:01-09:00, Mon., 27 Feb. 0.0321 0.0280 0.0304
07:01-08:00, Mon., 27 Feb. 0.0321 0.0285 0.0303
06:01-07:00, Mon., 27 Feb. 0.0327 0.0288 0.0305
05:01-06:00, Mon., 27 Feb. 0.0326 0.0286 0.0304
04:01-05:00, Mon., 27 Feb. 0.0326 0.0286 0.0303
03:01-04:00, Mon., 27 Feb. 0.0321 0.0282 0.0304
02:01-03:00, Mon., 27 Feb. 0.0321 0.0285 0.0302
01:01-02:00, Mon., 27 Feb. 0.0329 0.0281 0.0302
00:01-01:00, Mon., 27 Feb. 0.0330 0.0288 0.0304