Measurement results by the hour (Chofu) 5 Feb., 2018 - 11 Feb., 2018

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., 11 Feb. 0.0310 0.0270 0.0289
22:01-23:00, Sun., 11 Feb. 0.0313 0.0267 0.0287
21:01-22:00, Sun., 11 Feb. 0.0305 0.0267 0.0288
20:01-21:00, Sun., 11 Feb. 0.0307 0.0272 0.0288
19:01-20:00, Sun., 11 Feb. 0.0304 0.0271 0.0286
18:01-19:00, Sun., 11 Feb. 0.0306 0.0267 0.0286
17:01-18:00, Sun., 11 Feb. 0.0311 0.0270 0.0287
16:01-17:00, Sun., 11 Feb. 0.0306 0.0269 0.0289
15:01-16:00, Sun., 11 Feb. 0.0307 0.0275 0.0290
14:01-15:00, Sun., 11 Feb. 0.0306 0.0261 0.0290
13:01-14:00, Sun., 11 Feb. 0.0310 0.0267 0.0288
12:01-13:00, Sun., 11 Feb. 0.0314 0.0275 0.0290
11:01-12:00, Sun., 11 Feb. 0.0320 0.0272 0.0295
10:01-11:00, Sun., 11 Feb. 0.0311 0.0272 0.0295
09:01-10:00, Sun., 11 Feb. 0.0328 0.0282 0.0301
08:01-09:00, Sun., 11 Feb. 0.0326 0.0285 0.0302
07:01-08:00, Sun., 11 Feb. 0.0325 0.0286 0.0306
06:01-07:00, Sun., 11 Feb. 0.0336 0.0287 0.0305
05:01-06:00, Sun., 11 Feb. 0.0318 0.0286 0.0301
04:01-05:00, Sun., 11 Feb. 0.0314 0.0276 0.0298
03:01-04:00, Sun., 11 Feb. 0.0319 0.0281 0.0299
02:01-03:00, Sun., 11 Feb. 0.0328 0.0281 0.0300
01:01-02:00, Sun., 11 Feb. 0.0312 0.0281 0.0296
00:01-01:00, Sun., 11 Feb. 0.0315 0.0277 0.0296
23:01-24:00, Sat., 10 Feb. 0.0320 0.0278 0.0299
22:01-23:00, Sat., 10 Feb. 0.0343 0.0292 0.0319
21:01-22:00, Sat., 10 Feb. 0.0347 0.0279 0.0307
20:01-21:00, Sat., 10 Feb. 0.0310 0.0273 0.0292
19:01-20:00, Sat., 10 Feb. 0.0306 0.0264 0.0287
18:01-19:00, Sat., 10 Feb. 0.0302 0.0270 0.0284
17:01-18:00, Sat., 10 Feb. 0.0308 0.0262 0.0285
16:01-17:00, Sat., 10 Feb. 0.0313 0.0260 0.0285
15:01-16:00, Sat., 10 Feb. 0.0302 0.0267 0.0286
14:01-15:00, Sat., 10 Feb. 0.0314 0.0263 0.0287
13:01-14:00, Sat., 10 Feb. 0.0310 0.0272 0.0291
12:01-13:00, Sat., 10 Feb. 0.0320 0.0283 0.0299
11:01-12:00, Sat., 10 Feb. 0.0318 0.0279 0.0296
10:01-11:00, Sat., 10 Feb. 0.0324 0.0280 0.0305
09:01-10:00, Sat., 10 Feb. 0.0343 0.0287 0.0314
08:01-09:00, Sat., 10 Feb. 0.0342 0.0301 0.0320
07:01-08:00, Sat., 10 Feb. 0.0350 0.0301 0.0319
06:01-07:00, Sat., 10 Feb. 0.0338 0.0295 0.0312
05:01-06:00, Sat., 10 Feb. 0.0337 0.0291 0.0311
04:01-05:00, Sat., 10 Feb. 0.0321 0.0289 0.0304
03:01-04:00, Sat., 10 Feb. 0.0320 0.0278 0.0301
02:01-03:00, Sat., 10 Feb. 0.0332 0.0288 0.0305
01:01-02:00, Sat., 10 Feb. 0.0327 0.0291 0.0305
00:01-01:00, Sat., 10 Feb. 0.0327 0.0283 0.0303
23:01-24:00, Fri., 09 Feb. 0.0323 0.0279 0.0304
22:01-23:00, Fri., 09 Feb. 0.0320 0.0280 0.0302
21:01-22:00, Fri., 09 Feb. 0.0318 0.0276 0.0298
20:01-21:00, Fri., 09 Feb. 0.0318 0.0271 0.0292
19:01-20:00, Fri., 09 Feb. 0.0306 0.0262 0.0288
18:01-19:00, Fri., 09 Feb. 0.0304 0.0264 0.0288
17:01-18:00, Fri., 09 Feb. 0.0306 0.0267 0.0286
16:01-17:00, Fri., 09 Feb. 0.0303 0.0265 0.0287
15:01-16:00, Fri., 09 Feb. 0.0304 0.0268 0.0286
14:01-15:00, Fri., 09 Feb. 0.0302 0.0268 0.0287
13:01-14:00, Fri., 09 Feb. 0.0310 0.0266 0.0288
12:01-13:00, Fri., 09 Feb. 0.0308 0.0277 0.0291
11:01-12:00, Fri., 09 Feb. 0.0312 0.0273 0.0295
10:01-11:00, Fri., 09 Feb. 0.0324 0.0278 0.0301
09:01-10:00, Fri., 09 Feb. 0.0347 0.0285 0.0307
08:01-09:00, Fri., 09 Feb. 0.0331 0.0300 0.0316
07:01-08:00, Fri., 09 Feb. 0.0335 0.0299 0.0318
06:01-07:00, Fri., 09 Feb. 0.0337 0.0299 0.0316
05:01-06:00, Fri., 09 Feb. 0.0342 0.0298 0.0318
04:01-05:00, Fri., 09 Feb. 0.0330 0.0289 0.0309
03:01-04:00, Fri., 09 Feb. 0.0309 0.0279 0.0296
02:01-03:00, Fri., 09 Feb. 0.0322 0.0278 0.0294
01:01-02:00, Fri., 09 Feb. 0.0314 0.0280 0.0295
00:01-01:00, Fri., 09 Feb. 0.0312 0.0278 0.0294
23:01-24:00, Thu., 08 Feb. 0.0310 0.0269 0.0291
22:01-23:00, Thu., 08 Feb. 0.0307 0.0268 0.0288
21:01-22:00, Thu., 08 Feb. 0.0313 0.0270 0.0287
20:01-21:00, Thu., 08 Feb. 0.0311 0.0272 0.0290
19:01-20:00, Thu., 08 Feb. 0.0306 0.0276 0.0291
18:01-19:00, Thu., 08 Feb. 0.0309 0.0267 0.0288
17:01-18:00, Thu., 08 Feb. 0.0305 0.0272 0.0288
16:01-17:00, Thu., 08 Feb. 0.0314 0.0271 0.0291
15:01-16:00, Thu., 08 Feb. 0.0305 0.0273 0.0290
14:01-15:00, Thu., 08 Feb. 0.0302 0.0272 0.0289
13:01-14:00, Thu., 08 Feb. 0.0306 0.0259 0.0288
12:01-13:00, Thu., 08 Feb. 0.0316 0.0266 0.0292
11:01-12:00, Thu., 08 Feb. 0.0309 0.0270 0.0293
10:01-11:00, Thu., 08 Feb. 0.0322 0.0274 0.0291
09:01-10:00, Thu., 08 Feb. 0.0322 0.0270 0.0297
08:01-09:00, Thu., 08 Feb. 0.0332 0.0289 0.0311
07:01-08:00, Thu., 08 Feb. 0.0334 0.0297 0.0316
06:01-07:00, Thu., 08 Feb. 0.0339 0.0289 0.0312
05:01-06:00, Thu., 08 Feb. 0.0331 0.0285 0.0307
04:01-05:00, Thu., 08 Feb. 0.0321 0.0266 0.0298
03:01-04:00, Thu., 08 Feb. 0.0320 0.0273 0.0293
02:01-03:00, Thu., 08 Feb. 0.0314 0.0268 0.0287
01:01-02:00, Thu., 08 Feb. 0.0313 0.0265 0.0287
00:01-01:00, Thu., 08 Feb. 0.0299 0.0247 0.0283
23:01-24:00, Wed., 07 Feb. 0.0309 0.0267 0.0287
22:01-23:00, Wed., 07 Feb. 0.0302 0.0268 0.0284
21:01-22:00, Wed., 07 Feb. 0.0295 0.0262 0.0280
20:01-21:00, Wed., 07 Feb. 0.0309 0.0265 0.0284
19:01-20:00, Wed., 07 Feb. 0.0302 0.0271 0.0286
18:01-19:00, Wed., 07 Feb. 0.0307 0.0269 0.0288
17:01-18:00, Wed., 07 Feb. 0.0312 0.0268 0.0288
16:01-17:00, Wed., 07 Feb. 0.0311 0.0270 0.0286
15:01-16:00, Wed., 07 Feb. 0.0308 0.0269 0.0289
14:01-15:00, Wed., 07 Feb. 0.0301 0.0265 0.0288
13:01-14:00, Wed., 07 Feb. 0.0320 0.0273 0.0291
12:01-13:00, Wed., 07 Feb. 0.0310 0.0273 0.0292
11:01-12:00, Wed., 07 Feb. 0.0311 0.0274 0.0292
10:01-11:00, Wed., 07 Feb. 0.0308 0.0261 0.0282
09:01-10:00, Wed., 07 Feb. 0.0312 0.0269 0.0293
08:01-09:00, Wed., 07 Feb. 0.0312 0.0272 0.0291
07:01-08:00, Wed., 07 Feb. 0.0307 0.0273 0.0292
06:01-07:00, Wed., 07 Feb. 0.0311 0.0271 0.0290
05:01-06:00, Wed., 07 Feb. 0.0307 0.0266 0.0290
04:01-05:00, Wed., 07 Feb. 0.0306 0.0274 0.0290
03:01-04:00, Wed., 07 Feb. 0.0312 0.0275 0.0294
02:01-03:00, Wed., 07 Feb. 0.0319 0.0269 0.0293
01:01-02:00, Wed., 07 Feb. 0.0309 0.0272 0.0293
00:01-01:00, Wed., 07 Feb. 0.0314 0.0275 0.0295
23:01-24:00, Tue., 06 Feb. 0.0319 0.0274 0.0295
22:01-23:00, Tue., 06 Feb. 0.0313 0.0273 0.0296
21:01-22:00, Tue., 06 Feb. 0.0309 0.0271 0.0289
20:01-21:00, Tue., 06 Feb. 0.0310 0.0269 0.0289
19:01-20:00, Tue., 06 Feb. 0.0306 0.0267 0.0287
18:01-19:00, Tue., 06 Feb. 0.0307 0.0268 0.0287
17:01-18:00, Tue., 06 Feb. 0.0301 0.0268 0.0285
16:01-17:00, Tue., 06 Feb. 0.0308 0.0264 0.0288
15:01-16:00, Tue., 06 Feb. 0.0311 0.0274 0.0291
14:01-15:00, Tue., 06 Feb. 0.0318 0.0267 0.0290
13:01-14:00, Tue., 06 Feb. 0.0309 0.0273 0.0291
12:01-13:00, Tue., 06 Feb. 0.0308 0.0273 0.0293
11:01-12:00, Tue., 06 Feb. 0.0308 0.0276 0.0292
10:01-11:00, Tue., 06 Feb. 0.0319 0.0277 0.0295
09:01-10:00, Tue., 06 Feb. 0.0324 0.0278 0.0300
08:01-09:00, Tue., 06 Feb. 0.0322 0.0274 0.0298
07:01-08:00, Tue., 06 Feb. 0.0322 0.0282 0.0304
06:01-07:00, Tue., 06 Feb. 0.0322 0.0283 0.0302
05:01-06:00, Tue., 06 Feb. 0.0318 0.0281 0.0300
04:01-05:00, Tue., 06 Feb. 0.0317 0.0277 0.0302
03:01-04:00, Tue., 06 Feb. 0.0327 0.0285 0.0303
02:01-03:00, Tue., 06 Feb. 0.0319 0.0281 0.0301
01:01-02:00, Tue., 06 Feb. 0.0314 0.0281 0.0299
00:01-01:00, Tue., 06 Feb. 0.0313 0.0281 0.0297
23:01-24:00, Mon., 05 Feb. 0.0317 0.0276 0.0297
22:01-23:00, Mon., 05 Feb. 0.0319 0.0279 0.0298
21:01-22:00, Mon., 05 Feb. 0.0316 0.0286 0.0302
20:01-21:00, Mon., 05 Feb. 0.0320 0.0276 0.0297
19:01-20:00, Mon., 05 Feb. 0.0316 0.0279 0.0293
18:01-19:00, Mon., 05 Feb. 0.0319 0.0281 0.0297
17:01-18:00, Mon., 05 Feb. 0.0317 0.0270 0.0296
16:01-17:00, Mon., 05 Feb. 0.0317 0.0271 0.0292
15:01-16:00, Mon., 05 Feb. 0.0310 0.0269 0.0294
14:01-15:00, Mon., 05 Feb. 0.0311 0.0267 0.0295
13:01-14:00, Mon., 05 Feb. 0.0313 0.0277 0.0292
12:01-13:00, Mon., 05 Feb. 0.0316 0.0271 0.0294
11:01-12:00, Mon., 05 Feb. 0.0322 0.0274 0.0298
10:01-11:00, Mon., 05 Feb. 0.0327 0.0278 0.0296
09:01-10:00, Mon., 05 Feb. 0.0311 0.0278 0.0295
08:01-09:00, Mon., 05 Feb. 0.0320 0.0270 0.0301
07:01-08:00, Mon., 05 Feb. 0.0317 0.0281 0.0298
06:01-07:00, Mon., 05 Feb. 0.0312 0.0275 0.0294
05:01-06:00, Mon., 05 Feb. 0.0311 0.0267 0.0293
04:01-05:00, Mon., 05 Feb. 0.0320 0.0279 0.0295
03:01-04:00, Mon., 05 Feb. 0.0310 0.0276 0.0293
02:01-03:00, Mon., 05 Feb. 0.0318 0.0275 0.0294
01:01-02:00, Mon., 05 Feb. 0.0321 0.0275 0.0300
00:01-01:00, Mon., 05 Feb. 0.0324 0.0285 0.0300