Measurement results by the hour (Chofu) 24 Oct., 2022 - 30 Oct., 2022

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 Oct. 0.0321 0.0272 0.0295
22:01-23:00, Sun., 30 Oct. 0.0320 0.0273 0.0294
21:01-22:00, Sun., 30 Oct. 0.0307 0.0272 0.0291
20:01-21:00, Sun., 30 Oct. 0.0309 0.0264 0.0289
19:01-20:00, Sun., 30 Oct. 0.0299 0.0270 0.0285
18:01-19:00, Sun., 30 Oct. 0.0305 0.0260 0.0282
17:01-18:00, Sun., 30 Oct. 0.0302 0.0261 0.0281
16:01-17:00, Sun., 30 Oct. 0.0305 0.0266 0.0282
15:01-16:00, Sun., 30 Oct. 0.0298 0.0262 0.0282
14:01-15:00, Sun., 30 Oct. 0.0314 0.0274 0.0287
13:01-14:00, Sun., 30 Oct. 0.0308 0.0268 0.0285
12:01-13:00, Sun., 30 Oct. 0.0302 0.0268 0.0285
11:01-12:00, Sun., 30 Oct. 0.0308 0.0263 0.0287
10:01-11:00, Sun., 30 Oct. 0.0309 0.0271 0.0290
09:01-10:00, Sun., 30 Oct. 0.0312 0.0273 0.0291
08:01-09:00, Sun., 30 Oct. 0.0321 0.0269 0.0292
07:01-08:00, Sun., 30 Oct. 0.0309 0.0266 0.0291
06:01-07:00, Sun., 30 Oct. 0.0309 0.0268 0.0290
05:01-06:00, Sun., 30 Oct. 0.0311 0.0272 0.0288
04:01-05:00, Sun., 30 Oct. 0.0310 0.0269 0.0289
03:01-04:00, Sun., 30 Oct. 0.0304 0.0265 0.0288
02:01-03:00, Sun., 30 Oct. 0.0305 0.0267 0.0286
01:01-02:00, Sun., 30 Oct. 0.0309 0.0265 0.0283
00:01-01:00, Sun., 30 Oct. 0.0302 0.0263 0.0282
23:01-24:00, Sat., 29 Oct. 0.0299 0.0258 0.0279
22:01-23:00, Sat., 29 Oct. 0.0301 0.0263 0.0281
21:01-22:00, Sat., 29 Oct. 0.0301 0.0258 0.0281
20:01-21:00, Sat., 29 Oct. 0.0302 0.0264 0.0281
19:01-20:00, Sat., 29 Oct. 0.0303 0.0261 0.0277
18:01-19:00, Sat., 29 Oct. 0.0293 0.0252 0.0277
17:01-18:00, Sat., 29 Oct. 0.0296 0.0246 0.0278
16:01-17:00, Sat., 29 Oct. 0.0298 0.0261 0.0278
15:01-16:00, Sat., 29 Oct. 0.0304 0.0259 0.0279
14:01-15:00, Sat., 29 Oct. 0.0298 0.0262 0.0281
13:01-14:00, Sat., 29 Oct. 0.0298 0.0261 0.0283
12:01-13:00, Sat., 29 Oct. 0.0298 0.0263 0.0279
11:01-12:00, Sat., 29 Oct. 0.0317 0.0265 0.0286
10:01-11:00, Sat., 29 Oct. 0.0309 0.0268 0.0287
09:01-10:00, Sat., 29 Oct. 0.0321 0.0270 0.0291
08:01-09:00, Sat., 29 Oct. 0.0314 0.0270 0.0293
07:01-08:00, Sat., 29 Oct. 0.0316 0.0274 0.0298
06:01-07:00, Sat., 29 Oct. 0.0319 0.0272 0.0293
05:01-06:00, Sat., 29 Oct. 0.0311 0.0277 0.0295
04:01-05:00, Sat., 29 Oct. 0.0319 0.0271 0.0294
03:01-04:00, Sat., 29 Oct. 0.0321 0.0277 0.0297
02:01-03:00, Sat., 29 Oct. 0.0316 0.0272 0.0298
01:01-02:00, Sat., 29 Oct. 0.0316 0.0274 0.0300
00:01-01:00, Sat., 29 Oct. 0.0320 0.0276 0.0295
23:01-24:00, Fri., 28 Oct. 0.0312 0.0280 0.0295
22:01-23:00, Fri., 28 Oct. 0.0309 0.0273 0.0292
21:01-22:00, Fri., 28 Oct. 0.0307 0.0267 0.0288
20:01-21:00, Fri., 28 Oct. 0.0312 0.0266 0.0286
19:01-20:00, Fri., 28 Oct. 0.0305 0.0265 0.0284
18:01-19:00, Fri., 28 Oct. 0.0302 0.0261 0.0277
17:01-18:00, Fri., 28 Oct. 0.0303 0.0262 0.0278
16:01-17:00, Fri., 28 Oct. 0.0290 0.0244 0.0274
15:01-16:00, Fri., 28 Oct. 0.0295 0.0253 0.0273
14:01-15:00, Fri., 28 Oct. 0.0292 0.0248 0.0276
13:01-14:00, Fri., 28 Oct. 0.0302 0.0263 0.0279
12:01-13:00, Fri., 28 Oct. 0.0298 0.0254 0.0278
11:01-12:00, Fri., 28 Oct. 0.0303 0.0261 0.0283
10:01-11:00, Fri., 28 Oct. 0.0308 0.0268 0.0287
09:01-10:00, Fri., 28 Oct. 0.0309 0.0282 0.0295
08:01-09:00, Fri., 28 Oct. 0.0315 0.0267 0.0295
07:01-08:00, Fri., 28 Oct. 0.0313 0.0278 0.0296
06:01-07:00, Fri., 28 Oct. 0.0309 0.0272 0.0293
05:01-06:00, Fri., 28 Oct. 0.0322 0.0278 0.0298
04:01-05:00, Fri., 28 Oct. 0.0321 0.0279 0.0298
03:01-04:00, Fri., 28 Oct. 0.0323 0.0272 0.0296
02:01-03:00, Fri., 28 Oct. 0.0314 0.0274 0.0292
01:01-02:00, Fri., 28 Oct. 0.0309 0.0271 0.0289
00:01-01:00, Fri., 28 Oct. 0.0301 0.0269 0.0287
23:01-24:00, Thu., 27 Oct. 0.0313 0.0268 0.0288
22:01-23:00, Thu., 27 Oct. 0.0309 0.0270 0.0286
21:01-22:00, Thu., 27 Oct. 0.0313 0.0265 0.0288
20:01-21:00, Thu., 27 Oct. 0.0302 0.0257 0.0282
19:01-20:00, Thu., 27 Oct. 0.0302 0.0262 0.0280
18:01-19:00, Thu., 27 Oct. 0.0292 0.0256 0.0275
17:01-18:00, Thu., 27 Oct. 0.0295 0.0259 0.0274
16:01-17:00, Thu., 27 Oct. 0.0300 0.0253 0.0274
15:01-16:00, Thu., 27 Oct. 0.0297 0.0257 0.0276
14:01-15:00, Thu., 27 Oct. 0.0294 0.0259 0.0277
13:01-14:00, Thu., 27 Oct. 0.0300 0.0261 0.0281
12:01-13:00, Thu., 27 Oct. 0.0295 0.0264 0.0278
11:01-12:00, Thu., 27 Oct. 0.0315 0.0259 0.0281
10:01-11:00, Thu., 27 Oct. 0.0304 0.0261 0.0284
09:01-10:00, Thu., 27 Oct. 0.0311 0.0276 0.0290
08:01-09:00, Thu., 27 Oct. 0.0311 0.0269 0.0293
07:01-08:00, Thu., 27 Oct. 0.0324 0.0277 0.0297
06:01-07:00, Thu., 27 Oct. 0.0328 0.0285 0.0301
05:01-06:00, Thu., 27 Oct. 0.0317 0.0280 0.0300
04:01-05:00, Thu., 27 Oct. 0.0323 0.0277 0.0295
03:01-04:00, Thu., 27 Oct. 0.0321 0.0270 0.0295
02:01-03:00, Thu., 27 Oct. 0.0320 0.0272 0.0296
01:01-02:00, Thu., 27 Oct. 0.0315 0.0271 0.0293
00:01-01:00, Thu., 27 Oct. 0.0311 0.0274 0.0290
23:01-24:00, Wed., 26 Oct. 0.0308 0.0265 0.0290
22:01-23:00, Wed., 26 Oct. 0.0303 0.0264 0.0284
21:01-22:00, Wed., 26 Oct. 0.0288 0.0259 0.0274
20:01-21:00, Wed., 26 Oct. 0.0291 0.0251 0.0270
19:01-20:00, Wed., 26 Oct. 0.0291 0.0259 0.0272
18:01-19:00, Wed., 26 Oct. 0.0294 0.0252 0.0269
17:01-18:00, Wed., 26 Oct. 0.0295 0.0256 0.0271
16:01-17:00, Wed., 26 Oct. 0.0298 0.0250 0.0272
15:01-16:00, Wed., 26 Oct. 0.0299 0.0247 0.0272
14:01-15:00, Wed., 26 Oct. 0.0292 0.0257 0.0274
13:01-14:00, Wed., 26 Oct. 0.0307 0.0249 0.0273
12:01-13:00, Wed., 26 Oct. 0.0302 0.0253 0.0276
11:01-12:00, Wed., 26 Oct. 0.0303 0.0258 0.0279
10:01-11:00, Wed., 26 Oct. 0.0300 0.0255 0.0280
09:01-10:00, Wed., 26 Oct. 0.0299 0.0265 0.0279
08:01-09:00, Wed., 26 Oct. 0.0309 0.0261 0.0282
07:01-08:00, Wed., 26 Oct. 0.0302 0.0265 0.0282
06:01-07:00, Wed., 26 Oct. 0.0304 0.0258 0.0280
05:01-06:00, Wed., 26 Oct. 0.0301 0.0262 0.0280
04:01-05:00, Wed., 26 Oct. 0.0309 0.0268 0.0287
03:01-04:00, Wed., 26 Oct. 0.0326 0.0274 0.0307
02:01-03:00, Wed., 26 Oct. 0.0355 0.0306 0.0325
01:01-02:00, Wed., 26 Oct. 0.0341 0.0300 0.0318
00:01-01:00, Wed., 26 Oct. 0.0336 0.0286 0.0315
23:01-24:00, Tue., 25 Oct. 0.0349 0.0293 0.0318
22:01-23:00, Tue., 25 Oct. 0.0302 0.0262 0.0282
21:01-22:00, Tue., 25 Oct. 0.0300 0.0264 0.0282
20:01-21:00, Tue., 25 Oct. 0.0303 0.0264 0.0283
19:01-20:00, Tue., 25 Oct. 0.0298 0.0260 0.0281
18:01-19:00, Tue., 25 Oct. 0.0295 0.0266 0.0278
17:01-18:00, Tue., 25 Oct. 0.0304 0.0258 0.0279
16:01-17:00, Tue., 25 Oct. 0.0299 0.0265 0.0278
15:01-16:00, Tue., 25 Oct. 0.0299 0.0259 0.0281
14:01-15:00, Tue., 25 Oct. 0.0301 0.0259 0.0284
13:01-14:00, Tue., 25 Oct. 0.0310 0.0266 0.0287
12:01-13:00, Tue., 25 Oct. 0.0307 0.0272 0.0288
11:01-12:00, Tue., 25 Oct. 0.0305 0.0264 0.0286
10:01-11:00, Tue., 25 Oct. 0.0309 0.0265 0.0285
09:01-10:00, Tue., 25 Oct. 0.0314 0.0266 0.0292
08:01-09:00, Tue., 25 Oct. 0.0305 0.0269 0.0290
07:01-08:00, Tue., 25 Oct. 0.0311 0.0261 0.0288
06:01-07:00, Tue., 25 Oct. 0.0332 0.0273 0.0295
05:01-06:00, Tue., 25 Oct. 0.0348 0.0287 0.0317
04:01-05:00, Tue., 25 Oct. 0.0400 0.0331 0.0366
03:01-04:00, Tue., 25 Oct. 0.0353 0.0279 0.0312
02:01-03:00, Tue., 25 Oct. 0.0318 0.0272 0.0295
01:01-02:00, Tue., 25 Oct. 0.0329 0.0279 0.0301
00:01-01:00, Tue., 25 Oct. 0.0346 0.0292 0.0316
23:01-24:00, Mon., 24 Oct. 0.0331 0.0273 0.0304
22:01-23:00, Mon., 24 Oct. 0.0299 0.0265 0.0283
21:01-22:00, Mon., 24 Oct. 0.0301 0.0259 0.0277
20:01-21:00, Mon., 24 Oct. 0.0295 0.0252 0.0275
19:01-20:00, Mon., 24 Oct. 0.0300 0.0262 0.0276
18:01-19:00, Mon., 24 Oct. 0.0294 0.0258 0.0277
17:01-18:00, Mon., 24 Oct. 0.0291 0.0260 0.0276
16:01-17:00, Mon., 24 Oct. 0.0297 0.0255 0.0278
15:01-16:00, Mon., 24 Oct. 0.0291 0.0259 0.0276
14:01-15:00, Mon., 24 Oct. 0.0299 0.0255 0.0280
13:01-14:00, Mon., 24 Oct. 0.0328 0.0267 0.0296
12:01-13:00, Mon., 24 Oct. 0.0396 0.0296 0.0347
11:01-12:00, Mon., 24 Oct. 0.0447 0.0350 0.0385
10:01-11:00, Mon., 24 Oct. 0.0388 0.0323 0.0352
09:01-10:00, Mon., 24 Oct. 0.0357 0.0280 0.0318
08:01-09:00, Mon., 24 Oct. 0.0311 0.0271 0.0292
07:01-08:00, Mon., 24 Oct. 0.0299 0.0268 0.0285
06:01-07:00, Mon., 24 Oct. 0.0307 0.0267 0.0285
05:01-06:00, Mon., 24 Oct. 0.0304 0.0266 0.0284
04:01-05:00, Mon., 24 Oct. 0.0308 0.0266 0.0284
03:01-04:00, Mon., 24 Oct. 0.0300 0.0271 0.0285
02:01-03:00, Mon., 24 Oct. 0.0309 0.0270 0.0288
01:01-02:00, Mon., 24 Oct. 0.0320 0.0284 0.0299
00:01-01:00, Mon., 24 Oct. 0.0325 0.0268 0.0296