Measurement results by the hour (Chofu) 23 Oct., 2017 - 29 Oct., 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., 29 Oct. 0.0296 0.0252 0.0276
22:01-23:00, Sun., 29 Oct. 0.0316 0.0266 0.0288
21:01-22:00, Sun., 29 Oct. 0.0362 0.0286 0.0318
20:01-21:00, Sun., 29 Oct. 0.0461 0.0336 0.0395
19:01-20:00, Sun., 29 Oct. 0.0462 0.0391 0.0423
18:01-19:00, Sun., 29 Oct. 0.0436 0.0349 0.0383
17:01-18:00, Sun., 29 Oct. 0.0380 0.0284 0.0342
16:01-17:00, Sun., 29 Oct. 0.0349 0.0281 0.0310
15:01-16:00, Sun., 29 Oct. 0.0362 0.0316 0.0340
14:01-15:00, Sun., 29 Oct. 0.0347 0.0301 0.0327
13:01-14:00, Sun., 29 Oct. 0.0350 0.0312 0.0329
12:01-13:00, Sun., 29 Oct. 0.0358 0.0321 0.0338
11:01-12:00, Sun., 29 Oct. 0.0354 0.0304 0.0330
10:01-11:00, Sun., 29 Oct. 0.0341 0.0303 0.0322
09:01-10:00, Sun., 29 Oct. 0.0344 0.0304 0.0326
08:01-09:00, Sun., 29 Oct. 0.0348 0.0295 0.0314
07:01-08:00, Sun., 29 Oct. 0.0332 0.0300 0.0318
06:01-07:00, Sun., 29 Oct. 0.0342 0.0293 0.0318
05:01-06:00, Sun., 29 Oct. 0.0339 0.0284 0.0309
04:01-05:00, Sun., 29 Oct. 0.0335 0.0291 0.0312
03:01-04:00, Sun., 29 Oct. 0.0329 0.0288 0.0307
02:01-03:00, Sun., 29 Oct. 0.0331 0.0287 0.0312
01:01-02:00, Sun., 29 Oct. 0.0322 0.0289 0.0307
00:01-01:00, Sun., 29 Oct. 0.0320 0.0275 0.0296
23:01-24:00, Sat., 28 Oct. 0.0313 0.0279 0.0296
22:01-23:00, Sat., 28 Oct. 0.0310 0.0268 0.0293
21:01-22:00, Sat., 28 Oct. 0.0327 0.0285 0.0306
20:01-21:00, Sat., 28 Oct. 0.0329 0.0285 0.0308
19:01-20:00, Sat., 28 Oct. 0.0330 0.0286 0.0310
18:01-19:00, Sat., 28 Oct. 0.0339 0.0291 0.0310
17:01-18:00, Sat., 28 Oct. 0.0327 0.0290 0.0304
16:01-17:00, Sat., 28 Oct. 0.0322 0.0288 0.0302
15:01-16:00, Sat., 28 Oct. 0.0325 0.0287 0.0307
14:01-15:00, Sat., 28 Oct. 0.0331 0.0276 0.0302
13:01-14:00, Sat., 28 Oct. 0.0322 0.0270 0.0294
12:01-13:00, Sat., 28 Oct. 0.0318 0.0271 0.0292
11:01-12:00, Sat., 28 Oct. 0.0306 0.0273 0.0293
09:01-10:00, Sat., 28 Oct. 0.0308 0.0272 0.0291
08:01-09:00, Sat., 28 Oct. 0.0317 0.0272 0.0291
07:01-08:00, Sat., 28 Oct. 0.0324 0.0266 0.0292
06:01-07:00, Sat., 28 Oct. 0.0317 0.0269 0.0293
05:01-06:00, Sat., 28 Oct. 0.0317 0.0270 0.0291
04:01-05:00, Sat., 28 Oct. 0.0322 0.0273 0.0292
03:01-04:00, Sat., 28 Oct. 0.0308 0.0267 0.0292
02:01-03:00, Sat., 28 Oct. 0.0316 0.0271 0.0290
01:01-02:00, Sat., 28 Oct. 0.0311 0.0274 0.0290
00:01-01:00, Sat., 28 Oct. 0.0312 0.0271 0.0288
23:01-24:00, Fri., 27 Oct. 0.0311 0.0272 0.0290
22:01-23:00, Fri., 27 Oct. 0.0313 0.0270 0.0293
21:01-22:00, Fri., 27 Oct. 0.0310 0.0275 0.0289
20:01-21:00, Fri., 27 Oct. 0.0307 0.0265 0.0287
19:01-20:00, Fri., 27 Oct. 0.0296 0.0264 0.0282
18:01-19:00, Fri., 27 Oct. 0.0298 0.0265 0.0280
17:01-18:00, Fri., 27 Oct. 0.0302 0.0258 0.0279
16:01-17:00, Fri., 27 Oct. 0.0296 0.0258 0.0277
15:01-16:00, Fri., 27 Oct. 0.0310 0.0255 0.0280
14:01-15:00, Fri., 27 Oct. 0.0299 0.0259 0.0280
13:01-14:00, Fri., 27 Oct. 0.0306 0.0259 0.0282
12:01-13:00, Fri., 27 Oct. 0.0310 0.0264 0.0283
11:01-12:00, Fri., 27 Oct. 0.0297 0.0267 0.0284
10:01-11:00, Fri., 27 Oct. 0.0317 0.0272 0.0289
09:01-10:00, Fri., 27 Oct. 0.0317 0.0284 0.0297
08:01-09:00, Fri., 27 Oct. 0.0329 0.0278 0.0303
07:01-08:00, Fri., 27 Oct. 0.0328 0.0286 0.0304
06:01-07:00, Fri., 27 Oct. 0.0323 0.0284 0.0305
05:01-06:00, Fri., 27 Oct. 0.0328 0.0282 0.0308
04:01-05:00, Fri., 27 Oct. 0.0316 0.0290 0.0302
03:01-04:00, Fri., 27 Oct. 0.0326 0.0285 0.0299
02:01-03:00, Fri., 27 Oct. 0.0324 0.0270 0.0298
01:01-02:00, Fri., 27 Oct. 0.0324 0.0278 0.0296
00:01-01:00, Fri., 27 Oct. 0.0308 0.0276 0.0293
23:01-24:00, Thu., 26 Oct. 0.0304 0.0270 0.0289
22:01-23:00, Thu., 26 Oct. 0.0311 0.0266 0.0287
21:01-22:00, Thu., 26 Oct. 0.0307 0.0266 0.0287
20:01-21:00, Thu., 26 Oct. 0.0302 0.0263 0.0284
19:01-20:00, Thu., 26 Oct. 0.0296 0.0261 0.0277
18:01-19:00, Thu., 26 Oct. 0.0295 0.0259 0.0279
17:01-18:00, Thu., 26 Oct. 0.0298 0.0259 0.0277
16:01-17:00, Thu., 26 Oct. 0.0292 0.0256 0.0274
15:01-16:00, Thu., 26 Oct. 0.0300 0.0255 0.0277
14:01-15:00, Thu., 26 Oct. 0.0300 0.0262 0.0277
13:01-14:00, Thu., 26 Oct. 0.0294 0.0261 0.0279
12:01-13:00, Thu., 26 Oct. 0.0300 0.0257 0.0280
11:01-12:00, Thu., 26 Oct. 0.0298 0.0267 0.0283
10:01-11:00, Thu., 26 Oct. 0.0300 0.0265 0.0286
09:01-10:00, Thu., 26 Oct. 0.0307 0.0269 0.0289
08:01-09:00, Thu., 26 Oct. 0.0314 0.0268 0.0289
07:01-08:00, Thu., 26 Oct. 0.0307 0.0263 0.0286
06:01-07:00, Thu., 26 Oct. 0.0305 0.0269 0.0287
05:01-06:00, Thu., 26 Oct. 0.0305 0.0258 0.0285
04:01-05:00, Thu., 26 Oct. 0.0302 0.0268 0.0284
03:01-04:00, Thu., 26 Oct. 0.0303 0.0267 0.0285
02:01-03:00, Thu., 26 Oct. 0.0302 0.0266 0.0281
01:01-02:00, Thu., 26 Oct. 0.0296 0.0265 0.0280
00:01-01:00, Thu., 26 Oct. 0.0300 0.0256 0.0280
23:01-24:00, Wed., 25 Oct. 0.0297 0.0266 0.0279
22:01-23:00, Wed., 25 Oct. 0.0291 0.0261 0.0278
21:01-22:00, Wed., 25 Oct. 0.0300 0.0268 0.0282
20:01-21:00, Wed., 25 Oct. 0.0292 0.0260 0.0278
19:01-20:00, Wed., 25 Oct. 0.0348 0.0271 0.0300
18:01-19:00, Wed., 25 Oct. 0.0365 0.0302 0.0335
17:01-18:00, Wed., 25 Oct. 0.0351 0.0272 0.0317
16:01-17:00, Wed., 25 Oct. 0.0301 0.0266 0.0287
15:01-16:00, Wed., 25 Oct. 0.0338 0.0281 0.0312
14:01-15:00, Wed., 25 Oct. 0.0403 0.0329 0.0357
13:01-14:00, Wed., 25 Oct. 0.0415 0.0353 0.0377
12:01-13:00, Wed., 25 Oct. 0.0412 0.0323 0.0370
11:01-12:00, Wed., 25 Oct. 0.0352 0.0307 0.0329
10:01-11:00, Wed., 25 Oct. 0.0375 0.0337 0.0354
09:01-10:00, Wed., 25 Oct. 0.0368 0.0286 0.0319
08:01-09:00, Wed., 25 Oct. 0.0342 0.0294 0.0318
07:01-08:00, Wed., 25 Oct. 0.0358 0.0300 0.0325
06:01-07:00, Wed., 25 Oct. 0.0328 0.0277 0.0303
05:01-06:00, Wed., 25 Oct. 0.0330 0.0284 0.0305
04:01-05:00, Wed., 25 Oct. 0.0314 0.0275 0.0294
03:01-04:00, Wed., 25 Oct. 0.0309 0.0276 0.0292
02:01-03:00, Wed., 25 Oct. 0.0314 0.0276 0.0292
01:01-02:00, Wed., 25 Oct. 0.0307 0.0273 0.0287
00:01-01:00, Wed., 25 Oct. 0.0301 0.0264 0.0283
23:01-24:00, Tue., 24 Oct. 0.0306 0.0266 0.0286
22:01-23:00, Tue., 24 Oct. 0.0306 0.0262 0.0285
21:01-22:00, Tue., 24 Oct. 0.0302 0.0265 0.0285
20:01-21:00, Tue., 24 Oct. 0.0294 0.0262 0.0278
19:01-20:00, Tue., 24 Oct. 0.0297 0.0263 0.0280
18:01-19:00, Tue., 24 Oct. 0.0296 0.0265 0.0281
17:01-18:00, Tue., 24 Oct. 0.0299 0.0262 0.0280
16:01-17:00, Tue., 24 Oct. 0.0302 0.0261 0.0281
15:01-16:00, Tue., 24 Oct. 0.0297 0.0259 0.0280
14:01-15:00, Tue., 24 Oct. 0.0300 0.0256 0.0283
13:01-14:00, Tue., 24 Oct. 0.0300 0.0264 0.0283
12:01-13:00, Tue., 24 Oct. 0.0302 0.0261 0.0281
11:01-12:00, Tue., 24 Oct. 0.0312 0.0262 0.0283
10:01-11:00, Tue., 24 Oct. 0.0307 0.0256 0.0281
09:01-10:00, Tue., 24 Oct. 0.0300 0.0261 0.0283
08:01-09:00, Tue., 24 Oct. 0.0305 0.0266 0.0285
07:01-08:00, Tue., 24 Oct. 0.0305 0.0270 0.0284
06:01-07:00, Tue., 24 Oct. 0.0304 0.0261 0.0282
05:01-06:00, Tue., 24 Oct. 0.0308 0.0263 0.0281
04:01-05:00, Tue., 24 Oct. 0.0295 0.0260 0.0279
03:01-04:00, Tue., 24 Oct. 0.0295 0.0263 0.0282
02:01-03:00, Tue., 24 Oct. 0.0299 0.0269 0.0281
01:01-02:00, Tue., 24 Oct. 0.0300 0.0256 0.0283
00:01-01:00, Tue., 24 Oct. 0.0300 0.0263 0.0281
23:01-24:00, Mon., 23 Oct. 0.0304 0.0260 0.0283
22:01-23:00, Mon., 23 Oct. 0.0298 0.0262 0.0279
21:01-22:00, Mon., 23 Oct. 0.0295 0.0254 0.0276
20:01-21:00, Mon., 23 Oct. 0.0297 0.0256 0.0277
19:01-20:00, Mon., 23 Oct. 0.0297 0.0253 0.0277
18:01-19:00, Mon., 23 Oct. 0.0307 0.0256 0.0279
17:01-18:00, Mon., 23 Oct. 0.0299 0.0257 0.0276
16:01-17:00, Mon., 23 Oct. 0.0299 0.0260 0.0276
15:01-16:00, Mon., 23 Oct. 0.0298 0.0256 0.0273
14:01-15:00, Mon., 23 Oct. 0.0292 0.0258 0.0274
13:01-14:00, Mon., 23 Oct. 0.0299 0.0256 0.0275
12:01-13:00, Mon., 23 Oct. 0.0289 0.0258 0.0274
11:01-12:00, Mon., 23 Oct. 0.0298 0.0255 0.0274
10:01-11:00, Mon., 23 Oct. 0.0302 0.0257 0.0276
09:01-10:00, Mon., 23 Oct. 0.0312 0.0264 0.0286
08:01-09:00, Mon., 23 Oct. 0.0348 0.0289 0.0312
07:01-08:00, Mon., 23 Oct. 0.0496 0.0322 0.0395
06:01-07:00, Mon., 23 Oct. 0.0758 0.0476 0.0618
05:01-06:00, Mon., 23 Oct. 0.0790 0.0455 0.0692
04:01-05:00, Mon., 23 Oct. 0.0608 0.0425 0.0508
03:01-04:00, Mon., 23 Oct. 0.0676 0.0536 0.0614
02:01-03:00, Mon., 23 Oct. 0.0568 0.0366 0.0456
01:01-02:00, Mon., 23 Oct. 0.0459 0.0370 0.0421
00:01-01:00, Mon., 23 Oct. 0.0457 0.0373 0.0412