Measurement results by the hour (Chofu) 2 Jan., 2023 - 8 Jan., 2023

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., 08 Jan. 0.0311 0.0260 0.0285
22:01-23:00, Sun., 08 Jan. 0.0308 0.0267 0.0287
21:01-22:00, Sun., 08 Jan. 0.0299 0.0259 0.0284
20:01-21:00, Sun., 08 Jan. 0.0296 0.0258 0.0279
19:01-20:00, Sun., 08 Jan. 0.0301 0.0256 0.0277
18:01-19:00, Sun., 08 Jan. 0.0296 0.0246 0.0275
17:01-18:00, Sun., 08 Jan. 0.0293 0.0257 0.0275
16:01-17:00, Sun., 08 Jan. 0.0295 0.0249 0.0275
15:01-16:00, Sun., 08 Jan. 0.0291 0.0258 0.0275
14:01-15:00, Sun., 08 Jan. 0.0301 0.0257 0.0278
13:01-14:00, Sun., 08 Jan. 0.0297 0.0266 0.0280
12:01-13:00, Sun., 08 Jan. 0.0306 0.0255 0.0279
11:01-12:00, Sun., 08 Jan. 0.0301 0.0263 0.0284
10:01-11:00, Sun., 08 Jan. 0.0314 0.0278 0.0298
09:01-10:00, Sun., 08 Jan. 0.0324 0.0286 0.0303
08:01-09:00, Sun., 08 Jan. 0.0332 0.0284 0.0304
07:01-08:00, Sun., 08 Jan. 0.0326 0.0291 0.0306
06:01-07:00, Sun., 08 Jan. 0.0325 0.0290 0.0304
05:01-06:00, Sun., 08 Jan. 0.0318 0.0289 0.0305
04:01-05:00, Sun., 08 Jan. 0.0327 0.0286 0.0306
03:01-04:00, Sun., 08 Jan. 0.0327 0.0284 0.0307
02:01-03:00, Sun., 08 Jan. 0.0319 0.0282 0.0302
01:01-02:00, Sun., 08 Jan. 0.0314 0.0283 0.0300
00:01-01:00, Sun., 08 Jan. 0.0315 0.0274 0.0293
23:01-24:00, Sat., 07 Jan. 0.0314 0.0277 0.0294
22:01-23:00, Sat., 07 Jan. 0.0305 0.0268 0.0288
21:01-22:00, Sat., 07 Jan. 0.0306 0.0267 0.0284
20:01-21:00, Sat., 07 Jan. 0.0299 0.0259 0.0280
19:01-20:00, Sat., 07 Jan. 0.0292 0.0255 0.0274
18:01-19:00, Sat., 07 Jan. 0.0291 0.0255 0.0272
17:01-18:00, Sat., 07 Jan. 0.0288 0.0249 0.0270
16:01-17:00, Sat., 07 Jan. 0.0292 0.0258 0.0273
15:01-16:00, Sat., 07 Jan. 0.0294 0.0262 0.0275
14:01-15:00, Sat., 07 Jan. 0.0295 0.0253 0.0273
13:01-14:00, Sat., 07 Jan. 0.0296 0.0249 0.0278
12:01-13:00, Sat., 07 Jan. 0.0299 0.0260 0.0280
11:01-12:00, Sat., 07 Jan. 0.0298 0.0267 0.0282
10:01-11:00, Sat., 07 Jan. 0.0302 0.0263 0.0284
09:01-10:00, Sat., 07 Jan. 0.0302 0.0269 0.0287
08:01-09:00, Sat., 07 Jan. 0.0319 0.0270 0.0291
07:01-08:00, Sat., 07 Jan. 0.0310 0.0269 0.0287
06:01-07:00, Sat., 07 Jan. 0.0299 0.0263 0.0283
05:01-06:00, Sat., 07 Jan. 0.0306 0.0251 0.0279
04:01-05:00, Sat., 07 Jan. 0.0301 0.0255 0.0280
03:01-04:00, Sat., 07 Jan. 0.0303 0.0261 0.0283
02:01-03:00, Sat., 07 Jan. 0.0296 0.0260 0.0279
01:01-02:00, Sat., 07 Jan. 0.0307 0.0258 0.0281
00:01-01:00, Sat., 07 Jan. 0.0301 0.0267 0.0283
23:01-24:00, Fri., 06 Jan. 0.0308 0.0273 0.0289
22:01-23:00, Fri., 06 Jan. 0.0310 0.0275 0.0291
21:01-22:00, Fri., 06 Jan. 0.0310 0.0263 0.0286
20:01-21:00, Fri., 06 Jan. 0.0306 0.0261 0.0285
19:01-20:00, Fri., 06 Jan. 0.0296 0.0258 0.0275
18:01-19:00, Fri., 06 Jan. 0.0292 0.0252 0.0273
17:01-18:00, Fri., 06 Jan. 0.0296 0.0247 0.0274
16:01-17:00, Fri., 06 Jan. 0.0290 0.0251 0.0269
15:01-16:00, Fri., 06 Jan. 0.0292 0.0258 0.0274
14:01-15:00, Fri., 06 Jan. 0.0291 0.0262 0.0276
13:01-14:00, Fri., 06 Jan. 0.0296 0.0250 0.0276
12:01-13:00, Fri., 06 Jan. 0.0294 0.0259 0.0278
11:01-12:00, Fri., 06 Jan. 0.0298 0.0261 0.0284
10:01-11:00, Fri., 06 Jan. 0.0307 0.0264 0.0285
09:01-10:00, Fri., 06 Jan. 0.0320 0.0262 0.0292
08:01-09:00, Fri., 06 Jan. 0.0315 0.0282 0.0299
07:01-08:00, Fri., 06 Jan. 0.0319 0.0281 0.0300
06:01-07:00, Fri., 06 Jan. 0.0318 0.0281 0.0300
05:01-06:00, Fri., 06 Jan. 0.0324 0.0282 0.0301
04:01-05:00, Fri., 06 Jan. 0.0321 0.0271 0.0301
03:01-04:00, Fri., 06 Jan. 0.0315 0.0277 0.0296
02:01-03:00, Fri., 06 Jan. 0.0319 0.0271 0.0295
01:01-02:00, Fri., 06 Jan. 0.0305 0.0267 0.0284
00:01-01:00, Fri., 06 Jan. 0.0300 0.0260 0.0283
23:01-24:00, Thu., 05 Jan. 0.0298 0.0266 0.0279
22:01-23:00, Thu., 05 Jan. 0.0295 0.0258 0.0277
21:01-22:00, Thu., 05 Jan. 0.0293 0.0250 0.0271
20:01-21:00, Thu., 05 Jan. 0.0288 0.0250 0.0269
19:01-20:00, Thu., 05 Jan. 0.0285 0.0247 0.0268
18:01-19:00, Thu., 05 Jan. 0.0283 0.0252 0.0266
17:01-18:00, Thu., 05 Jan. 0.0290 0.0252 0.0267
16:01-17:00, Thu., 05 Jan. 0.0286 0.0241 0.0265
15:01-16:00, Thu., 05 Jan. 0.0287 0.0250 0.0269
14:01-15:00, Thu., 05 Jan. 0.0297 0.0247 0.0271
13:01-14:00, Thu., 05 Jan. 0.0294 0.0251 0.0273
12:01-13:00, Thu., 05 Jan. 0.0304 0.0249 0.0273
11:01-12:00, Thu., 05 Jan. 0.0292 0.0260 0.0274
10:01-11:00, Thu., 05 Jan. 0.0296 0.0256 0.0278
09:01-10:00, Thu., 05 Jan. 0.0296 0.0255 0.0278
08:01-09:00, Thu., 05 Jan. 0.0320 0.0264 0.0287
07:01-08:00, Thu., 05 Jan. 0.0312 0.0265 0.0287
06:01-07:00, Thu., 05 Jan. 0.0306 0.0263 0.0285
05:01-06:00, Thu., 05 Jan. 0.0304 0.0267 0.0282
04:01-05:00, Thu., 05 Jan. 0.0291 0.0264 0.0278
03:01-04:00, Thu., 05 Jan. 0.0297 0.0261 0.0278
02:01-03:00, Thu., 05 Jan. 0.0301 0.0261 0.0276
01:01-02:00, Thu., 05 Jan. 0.0300 0.0258 0.0275
00:01-01:00, Thu., 05 Jan. 0.0297 0.0258 0.0275
23:01-24:00, Wed., 04 Jan. 0.0291 0.0249 0.0275
22:01-23:00, Wed., 04 Jan. 0.0297 0.0257 0.0274
21:01-22:00, Wed., 04 Jan. 0.0294 0.0254 0.0274
20:01-21:00, Wed., 04 Jan. 0.0295 0.0250 0.0274
19:01-20:00, Wed., 04 Jan. 0.0289 0.0258 0.0272
18:01-19:00, Wed., 04 Jan. 0.0294 0.0262 0.0275
17:01-18:00, Wed., 04 Jan. 0.0288 0.0256 0.0273
16:01-17:00, Wed., 04 Jan. 0.0300 0.0263 0.0276
15:01-16:00, Wed., 04 Jan. 0.0308 0.0256 0.0273
14:01-15:00, Wed., 04 Jan. 0.0299 0.0254 0.0278
13:01-14:00, Wed., 04 Jan. 0.0294 0.0260 0.0279
12:01-13:00, Wed., 04 Jan. 0.0303 0.0256 0.0278
11:01-12:00, Wed., 04 Jan. 0.0315 0.0267 0.0283
10:01-11:00, Wed., 04 Jan. 0.0314 0.0276 0.0293
09:01-10:00, Wed., 04 Jan. 0.0322 0.0273 0.0299
08:01-09:00, Wed., 04 Jan. 0.0321 0.0270 0.0300
07:01-08:00, Wed., 04 Jan. 0.0316 0.0279 0.0300
06:01-07:00, Wed., 04 Jan. 0.0326 0.0282 0.0300
05:01-06:00, Wed., 04 Jan. 0.0320 0.0279 0.0299
04:01-05:00, Wed., 04 Jan. 0.0308 0.0274 0.0293
03:01-04:00, Wed., 04 Jan. 0.0312 0.0275 0.0294
02:01-03:00, Wed., 04 Jan. 0.0313 0.0283 0.0297
01:01-02:00, Wed., 04 Jan. 0.0325 0.0271 0.0293
00:01-01:00, Wed., 04 Jan. 0.0303 0.0267 0.0285
23:01-24:00, Tue., 03 Jan. 0.0295 0.0265 0.0282
22:01-23:00, Tue., 03 Jan. 0.0297 0.0259 0.0279
21:01-22:00, Tue., 03 Jan. 0.0291 0.0256 0.0274
20:01-21:00, Tue., 03 Jan. 0.0295 0.0252 0.0272
19:01-20:00, Tue., 03 Jan. 0.0289 0.0251 0.0275
18:01-19:00, Tue., 03 Jan. 0.0295 0.0255 0.0273
17:01-18:00, Tue., 03 Jan. 0.0291 0.0250 0.0271
16:01-17:00, Tue., 03 Jan. 0.0298 0.0245 0.0271
15:01-16:00, Tue., 03 Jan. 0.0292 0.0249 0.0272
14:01-15:00, Tue., 03 Jan. 0.0292 0.0253 0.0276
13:01-14:00, Tue., 03 Jan. 0.0293 0.0252 0.0275
12:01-13:00, Tue., 03 Jan. 0.0298 0.0254 0.0275
11:01-12:00, Tue., 03 Jan. 0.0299 0.0268 0.0282
10:01-11:00, Tue., 03 Jan. 0.0311 0.0271 0.0289
09:01-10:00, Tue., 03 Jan. 0.0312 0.0278 0.0293
08:01-09:00, Tue., 03 Jan. 0.0315 0.0281 0.0295
07:01-08:00, Tue., 03 Jan. 0.0331 0.0278 0.0301
06:01-07:00, Tue., 03 Jan. 0.0318 0.0280 0.0297
05:01-06:00, Tue., 03 Jan. 0.0306 0.0270 0.0291
04:01-05:00, Tue., 03 Jan. 0.0317 0.0270 0.0289
03:01-04:00, Tue., 03 Jan. 0.0304 0.0257 0.0283
02:01-03:00, Tue., 03 Jan. 0.0295 0.0263 0.0279
01:01-02:00, Tue., 03 Jan. 0.0298 0.0260 0.0279
00:01-01:00, Tue., 03 Jan. 0.0300 0.0263 0.0277
23:01-24:00, Mon., 02 Jan. 0.0295 0.0258 0.0275
22:01-23:00, Mon., 02 Jan. 0.0294 0.0254 0.0276
21:01-22:00, Mon., 02 Jan. 0.0291 0.0258 0.0272
20:01-21:00, Mon., 02 Jan. 0.0289 0.0256 0.0272
19:01-20:00, Mon., 02 Jan. 0.0291 0.0259 0.0274
18:01-19:00, Mon., 02 Jan. 0.0293 0.0256 0.0274
17:01-18:00, Mon., 02 Jan. 0.0294 0.0253 0.0269
16:01-17:00, Mon., 02 Jan. 0.0293 0.0255 0.0271
15:01-16:00, Mon., 02 Jan. 0.0296 0.0255 0.0272
14:01-15:00, Mon., 02 Jan. 0.0297 0.0258 0.0273
13:01-14:00, Mon., 02 Jan. 0.0297 0.0257 0.0277
12:01-13:00, Mon., 02 Jan. 0.0298 0.0259 0.0279
11:01-12:00, Mon., 02 Jan. 0.0305 0.0258 0.0281
10:01-11:00, Mon., 02 Jan. 0.0299 0.0263 0.0284
09:01-10:00, Mon., 02 Jan. 0.0314 0.0264 0.0288
08:01-09:00, Mon., 02 Jan. 0.0322 0.0282 0.0302
07:01-08:00, Mon., 02 Jan. 0.0318 0.0272 0.0296
06:01-07:00, Mon., 02 Jan. 0.0308 0.0268 0.0289
05:01-06:00, Mon., 02 Jan. 0.0302 0.0255 0.0282
04:01-05:00, Mon., 02 Jan. 0.0297 0.0260 0.0278
03:01-04:00, Mon., 02 Jan. 0.0302 0.0254 0.0281
02:01-03:00, Mon., 02 Jan. 0.0305 0.0265 0.0280
01:01-02:00, Mon., 02 Jan. 0.0303 0.0254 0.0278
00:01-01:00, Mon., 02 Jan. 0.0296 0.0256 0.0276