Measurement results by the hour (Chofu) 29 Jan., 2024 - 4 Feb., 2024

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., 04 Feb. 0.0298 0.0256 0.0277
22:01-23:00, Sun., 04 Feb. 0.0302 0.0256 0.0277
21:01-22:00, Sun., 04 Feb. 0.0292 0.0254 0.0275
20:01-21:00, Sun., 04 Feb. 0.0301 0.0253 0.0275
19:01-20:00, Sun., 04 Feb. 0.0310 0.0263 0.0281
18:01-19:00, Sun., 04 Feb. 0.0296 0.0260 0.0278
17:01-18:00, Sun., 04 Feb. 0.0297 0.0256 0.0277
16:01-17:00, Sun., 04 Feb. 0.0301 0.0259 0.0281
15:01-16:00, Sun., 04 Feb. 0.0300 0.0264 0.0280
14:01-15:00, Sun., 04 Feb. 0.0298 0.0263 0.0283
13:01-14:00, Sun., 04 Feb. 0.0304 0.0260 0.0280
12:01-13:00, Sun., 04 Feb. 0.0316 0.0258 0.0289
11:01-12:00, Sun., 04 Feb. 0.0339 0.0278 0.0306
10:01-11:00, Sun., 04 Feb. 0.0450 0.0315 0.0376
09:01-10:00, Sun., 04 Feb. 0.0484 0.0411 0.0449
08:01-09:00, Sun., 04 Feb. 0.0461 0.0393 0.0425
07:01-08:00, Sun., 04 Feb. 0.0439 0.0380 0.0403
06:01-07:00, Sun., 04 Feb. 0.0417 0.0355 0.0387
05:01-06:00, Sun., 04 Feb. 0.0447 0.0395 0.0423
04:01-05:00, Sun., 04 Feb. 0.0435 0.0367 0.0405
03:01-04:00, Sun., 04 Feb. 0.0398 0.0319 0.0345
02:01-03:00, Sun., 04 Feb. 0.0354 0.0309 0.0331
01:01-02:00, Sun., 04 Feb. 0.0358 0.0283 0.0326
00:01-01:00, Sun., 04 Feb. 0.0325 0.0267 0.0291
23:01-24:00, Sat., 03 Feb. 0.0305 0.0264 0.0280
22:01-23:00, Sat., 03 Feb. 0.0304 0.0263 0.0278
21:01-22:00, Sat., 03 Feb. 0.0297 0.0258 0.0280
20:01-21:00, Sat., 03 Feb. 0.0298 0.0253 0.0276
19:01-20:00, Sat., 03 Feb. 0.0299 0.0251 0.0276
18:01-19:00, Sat., 03 Feb. 0.0296 0.0255 0.0276
17:01-18:00, Sat., 03 Feb. 0.0296 0.0248 0.0274
16:01-17:00, Sat., 03 Feb. 0.0303 0.0263 0.0279
15:01-16:00, Sat., 03 Feb. 0.0298 0.0262 0.0281
14:01-15:00, Sat., 03 Feb. 0.0304 0.0252 0.0278
13:01-14:00, Sat., 03 Feb. 0.0297 0.0265 0.0281
12:01-13:00, Sat., 03 Feb. 0.0303 0.0258 0.0278
11:01-12:00, Sat., 03 Feb. 0.0297 0.0252 0.0279
10:01-11:00, Sat., 03 Feb. 0.0301 0.0262 0.0276
09:01-10:00, Sat., 03 Feb. 0.0301 0.0258 0.0278
08:01-09:00, Sat., 03 Feb. 0.0295 0.0260 0.0280
07:01-08:00, Sat., 03 Feb. 0.0304 0.0265 0.0283
06:01-07:00, Sat., 03 Feb. 0.0302 0.0263 0.0282
05:01-06:00, Sat., 03 Feb. 0.0305 0.0264 0.0281
04:01-05:00, Sat., 03 Feb. 0.0301 0.0258 0.0280
03:01-04:00, Sat., 03 Feb. 0.0301 0.0253 0.0278
02:01-03:00, Sat., 03 Feb. 0.0304 0.0261 0.0279
01:01-02:00, Sat., 03 Feb. 0.0297 0.0266 0.0282
00:01-01:00, Sat., 03 Feb. 0.0298 0.0254 0.0280
23:01-24:00, Fri., 02 Feb. 0.0304 0.0257 0.0281
22:01-23:00, Fri., 02 Feb. 0.0306 0.0264 0.0279
21:01-22:00, Fri., 02 Feb. 0.0297 0.0257 0.0278
20:01-21:00, Fri., 02 Feb. 0.0301 0.0260 0.0279
19:01-20:00, Fri., 02 Feb. 0.0308 0.0259 0.0280
18:01-19:00, Fri., 02 Feb. 0.0294 0.0256 0.0277
17:01-18:00, Fri., 02 Feb. 0.0304 0.0258 0.0280
16:01-17:00, Fri., 02 Feb. 0.0308 0.0262 0.0279
15:01-16:00, Fri., 02 Feb. 0.0306 0.0257 0.0278
14:01-15:00, Fri., 02 Feb. 0.0297 0.0259 0.0278
13:01-14:00, Fri., 02 Feb. 0.0301 0.0258 0.0282
12:01-13:00, Fri., 02 Feb. 0.0302 0.0252 0.0282
11:01-12:00, Fri., 02 Feb. 0.0300 0.0270 0.0284
10:01-11:00, Fri., 02 Feb. 0.0298 0.0260 0.0280
09:01-10:00, Fri., 02 Feb. 0.0300 0.0261 0.0280
08:01-09:00, Fri., 02 Feb. 0.0301 0.0261 0.0281
07:01-08:00, Fri., 02 Feb. 0.0302 0.0258 0.0281
06:01-07:00, Fri., 02 Feb. 0.0304 0.0265 0.0284
05:01-06:00, Fri., 02 Feb. 0.0304 0.0249 0.0279
04:01-05:00, Fri., 02 Feb. 0.0301 0.0260 0.0281
03:01-04:00, Fri., 02 Feb. 0.0302 0.0264 0.0282
02:01-03:00, Fri., 02 Feb. 0.0304 0.0264 0.0283
01:01-02:00, Fri., 02 Feb. 0.0297 0.0260 0.0282
00:01-01:00, Fri., 02 Feb. 0.0301 0.0268 0.0286
23:01-24:00, Thu., 01 Feb. 0.0325 0.0261 0.0286
22:01-23:00, Thu., 01 Feb. 0.0325 0.0267 0.0286
21:01-22:00, Thu., 01 Feb. 0.0304 0.0256 0.0288
20:01-21:00, Thu., 01 Feb. 0.0308 0.0263 0.0287
19:01-20:00, Thu., 01 Feb. 0.0312 0.0263 0.0289
18:01-19:00, Thu., 01 Feb. 0.0310 0.0268 0.0288
17:01-18:00, Thu., 01 Feb. 0.0315 0.0270 0.0288
16:01-17:00, Thu., 01 Feb. 0.0311 0.0273 0.0290
15:01-16:00, Thu., 01 Feb. 0.0316 0.0264 0.0291
14:01-15:00, Thu., 01 Feb. 0.0315 0.0267 0.0288
13:01-14:00, Thu., 01 Feb. 0.0318 0.0270 0.0291
12:01-13:00, Thu., 01 Feb. 0.0325 0.0263 0.0293
11:01-12:00, Thu., 01 Feb. 0.0315 0.0268 0.0293
10:01-11:00, Thu., 01 Feb. 0.0321 0.0268 0.0292
09:01-10:00, Thu., 01 Feb. 0.0316 0.0273 0.0298
08:01-09:00, Thu., 01 Feb. 0.0331 0.0276 0.0305
07:01-08:00, Thu., 01 Feb. 0.0330 0.0277 0.0301
06:01-07:00, Thu., 01 Feb. 0.0322 0.0283 0.0301
05:01-06:00, Thu., 01 Feb. 0.0329 0.0284 0.0302
04:01-05:00, Thu., 01 Feb. 0.0319 0.0279 0.0299
03:01-04:00, Thu., 01 Feb. 0.0318 0.0278 0.0298
02:01-03:00, Thu., 01 Feb. 0.0310 0.0273 0.0295
01:01-02:00, Thu., 01 Feb. 0.0312 0.0275 0.0294
00:01-01:00, Thu., 01 Feb. 0.0319 0.0266 0.0291
23:01-24:00, Wed., 31 Jan. 0.0307 0.0264 0.0286
22:01-23:00, Wed., 31 Jan. 0.0301 0.0260 0.0281
21:01-22:00, Wed., 31 Jan. 0.0301 0.0260 0.0279
20:01-21:00, Wed., 31 Jan. 0.0298 0.0258 0.0279
19:01-20:00, Wed., 31 Jan. 0.0302 0.0256 0.0279
18:01-19:00, Wed., 31 Jan. 0.0298 0.0260 0.0278
17:01-18:00, Wed., 31 Jan. 0.0304 0.0252 0.0283
16:01-17:00, Wed., 31 Jan. 0.0300 0.0262 0.0283
15:01-16:00, Wed., 31 Jan. 0.0307 0.0263 0.0285
14:01-15:00, Wed., 31 Jan. 0.0311 0.0263 0.0286
13:01-14:00, Wed., 31 Jan. 0.0311 0.0266 0.0287
12:01-13:00, Wed., 31 Jan. 0.0305 0.0266 0.0289
11:01-12:00, Wed., 31 Jan. 0.0304 0.0273 0.0290
10:01-11:00, Wed., 31 Jan. 0.0312 0.0272 0.0292
09:01-10:00, Wed., 31 Jan. 0.0319 0.0280 0.0302
08:01-09:00, Wed., 31 Jan. 0.0338 0.0290 0.0312
07:01-08:00, Wed., 31 Jan. 0.0336 0.0288 0.0311
06:01-07:00, Wed., 31 Jan. 0.0335 0.0285 0.0309
05:01-06:00, Wed., 31 Jan. 0.0328 0.0280 0.0307
04:01-05:00, Wed., 31 Jan. 0.0322 0.0281 0.0303
03:01-04:00, Wed., 31 Jan. 0.0318 0.0278 0.0298
02:01-03:00, Wed., 31 Jan. 0.0315 0.0280 0.0296
01:01-02:00, Wed., 31 Jan. 0.0323 0.0277 0.0298
00:01-01:00, Wed., 31 Jan. 0.0322 0.0277 0.0299
23:01-24:00, Tue., 30 Jan. 0.0324 0.0271 0.0294
22:01-23:00, Tue., 30 Jan. 0.0321 0.0273 0.0293
21:01-22:00, Tue., 30 Jan. 0.0304 0.0266 0.0288
20:01-21:00, Tue., 30 Jan. 0.0318 0.0267 0.0284
19:01-20:00, Tue., 30 Jan. 0.0297 0.0251 0.0277
18:01-19:00, Tue., 30 Jan. 0.0294 0.0251 0.0277
17:01-18:00, Tue., 30 Jan. 0.0302 0.0263 0.0280
16:01-17:00, Tue., 30 Jan. 0.0304 0.0261 0.0281
15:01-16:00, Tue., 30 Jan. 0.0308 0.0260 0.0285
14:01-15:00, Tue., 30 Jan. 0.0311 0.0266 0.0283
13:01-14:00, Tue., 30 Jan. 0.0308 0.0265 0.0286
12:01-13:00, Tue., 30 Jan. 0.0311 0.0269 0.0287
11:01-12:00, Tue., 30 Jan. 0.0310 0.0270 0.0289
10:01-11:00, Tue., 30 Jan. 0.0314 0.0270 0.0296
09:01-10:00, Tue., 30 Jan. 0.0319 0.0282 0.0300
08:01-09:00, Tue., 30 Jan. 0.0318 0.0281 0.0301
07:01-08:00, Tue., 30 Jan. 0.0320 0.0275 0.0297
06:01-07:00, Tue., 30 Jan. 0.0312 0.0276 0.0294
05:01-06:00, Tue., 30 Jan. 0.0312 0.0270 0.0290
04:01-05:00, Tue., 30 Jan. 0.0309 0.0266 0.0285
03:01-04:00, Tue., 30 Jan. 0.0311 0.0264 0.0286
02:01-03:00, Tue., 30 Jan. 0.0301 0.0256 0.0283
01:01-02:00, Tue., 30 Jan. 0.0310 0.0266 0.0288
00:01-01:00, Tue., 30 Jan. 0.0313 0.0263 0.0286
23:01-24:00, Mon., 29 Jan. 0.0318 0.0267 0.0284
22:01-23:00, Mon., 29 Jan. 0.0304 0.0262 0.0282
21:01-22:00, Mon., 29 Jan. 0.0298 0.0256 0.0279
20:01-21:00, Mon., 29 Jan. 0.0297 0.0251 0.0278
19:01-20:00, Mon., 29 Jan. 0.0297 0.0264 0.0278
18:01-19:00, Mon., 29 Jan. 0.0301 0.0257 0.0276
17:01-18:00, Mon., 29 Jan. 0.0290 0.0255 0.0274
16:01-17:00, Mon., 29 Jan. 0.0297 0.0261 0.0280
15:01-16:00, Mon., 29 Jan. 0.0302 0.0263 0.0280
14:01-15:00, Mon., 29 Jan. 0.0304 0.0267 0.0283
13:01-14:00, Mon., 29 Jan. 0.0310 0.0270 0.0285
12:01-13:00, Mon., 29 Jan. 0.0311 0.0267 0.0284
11:01-12:00, Mon., 29 Jan. 0.0297 0.0266 0.0285
10:01-11:00, Mon., 29 Jan. 0.0298 0.0258 0.0280
09:01-10:00, Mon., 29 Jan. 0.0305 0.0266 0.0283
08:01-09:00, Mon., 29 Jan. 0.0313 0.0256 0.0287
07:01-08:00, Mon., 29 Jan. 0.0307 0.0264 0.0285
06:01-07:00, Mon., 29 Jan. 0.0310 0.0266 0.0287
05:01-06:00, Mon., 29 Jan. 0.0304 0.0266 0.0287
04:01-05:00, Mon., 29 Jan. 0.0301 0.0260 0.0287
03:01-04:00, Mon., 29 Jan. 0.0310 0.0270 0.0290
02:01-03:00, Mon., 29 Jan. 0.0305 0.0266 0.0287
01:01-02:00, Mon., 29 Jan. 0.0315 0.0269 0.0285
00:01-01:00, Mon., 29 Jan. 0.0313 0.0257 0.0283