Measurement results by the hour (Chofu) 12 Dec., 2022 - 18 Dec., 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., 18 Dec. 0.0284 0.0247 0.0268
22:01-23:00, Sun., 18 Dec. 0.0282 0.0250 0.0268
21:01-22:00, Sun., 18 Dec. 0.0284 0.0255 0.0269
20:01-21:00, Sun., 18 Dec. 0.0287 0.0249 0.0269
19:01-20:00, Sun., 18 Dec. 0.0288 0.0254 0.0270
18:01-19:00, Sun., 18 Dec. 0.0288 0.0252 0.0269
17:01-18:00, Sun., 18 Dec. 0.0282 0.0247 0.0267
16:01-17:00, Sun., 18 Dec. 0.0286 0.0252 0.0268
15:01-16:00, Sun., 18 Dec. 0.0293 0.0255 0.0272
14:01-15:00, Sun., 18 Dec. 0.0295 0.0262 0.0276
13:01-14:00, Sun., 18 Dec. 0.0296 0.0253 0.0274
12:01-13:00, Sun., 18 Dec. 0.0294 0.0252 0.0276
11:01-12:00, Sun., 18 Dec. 0.0292 0.0254 0.0275
10:01-11:00, Sun., 18 Dec. 0.0293 0.0255 0.0276
09:01-10:00, Sun., 18 Dec. 0.0295 0.0258 0.0277
08:01-09:00, Sun., 18 Dec. 0.0308 0.0262 0.0281
07:01-08:00, Sun., 18 Dec. 0.0304 0.0255 0.0281
06:01-07:00, Sun., 18 Dec. 0.0315 0.0268 0.0290
05:01-06:00, Sun., 18 Dec. 0.0357 0.0293 0.0320
04:01-05:00, Sun., 18 Dec. 0.0387 0.0319 0.0359
03:01-04:00, Sun., 18 Dec. 0.0325 0.0277 0.0299
02:01-03:00, Sun., 18 Dec. 0.0404 0.0309 0.0354
01:01-02:00, Sun., 18 Dec. 0.0436 0.0373 0.0405
00:01-01:00, Sun., 18 Dec. 0.0440 0.0383 0.0412
23:01-24:00, Sat., 17 Dec. 0.0486 0.0400 0.0448
22:01-23:00, Sat., 17 Dec. 0.0482 0.0408 0.0449
21:01-22:00, Sat., 17 Dec. 0.0488 0.0412 0.0456
20:01-21:00, Sat., 17 Dec. 0.0452 0.0268 0.0344
19:01-20:00, Sat., 17 Dec. 0.0291 0.0255 0.0278
18:01-19:00, Sat., 17 Dec. 0.0302 0.0256 0.0279
17:01-18:00, Sat., 17 Dec. 0.0303 0.0264 0.0280
16:01-17:00, Sat., 17 Dec. 0.0302 0.0262 0.0280
15:01-16:00, Sat., 17 Dec. 0.0296 0.0264 0.0280
14:01-15:00, Sat., 17 Dec. 0.0292 0.0261 0.0278
13:01-14:00, Sat., 17 Dec. 0.0298 0.0256 0.0275
12:01-13:00, Sat., 17 Dec. 0.0303 0.0252 0.0279
11:01-12:00, Sat., 17 Dec. 0.0299 0.0264 0.0282
10:01-11:00, Sat., 17 Dec. 0.0297 0.0267 0.0280
09:01-10:00, Sat., 17 Dec. 0.0303 0.0263 0.0279
08:01-09:00, Sat., 17 Dec. 0.0295 0.0261 0.0279
07:01-08:00, Sat., 17 Dec. 0.0301 0.0257 0.0279
06:01-07:00, Sat., 17 Dec. 0.0301 0.0261 0.0279
05:01-06:00, Sat., 17 Dec. 0.0292 0.0253 0.0275
04:01-05:00, Sat., 17 Dec. 0.0296 0.0254 0.0272
03:01-04:00, Sat., 17 Dec. 0.0289 0.0258 0.0273
02:01-03:00, Sat., 17 Dec. 0.0288 0.0259 0.0274
01:01-02:00, Sat., 17 Dec. 0.0301 0.0261 0.0275
00:01-01:00, Sat., 17 Dec. 0.0292 0.0257 0.0276
23:01-24:00, Fri., 16 Dec. 0.0293 0.0254 0.0273
22:01-23:00, Fri., 16 Dec. 0.0293 0.0257 0.0273
21:01-22:00, Fri., 16 Dec. 0.0292 0.0256 0.0270
20:01-21:00, Fri., 16 Dec. 0.0291 0.0251 0.0273
19:01-20:00, Fri., 16 Dec. 0.0295 0.0250 0.0272
18:01-19:00, Fri., 16 Dec. 0.0295 0.0259 0.0274
17:01-18:00, Fri., 16 Dec. 0.0293 0.0249 0.0273
16:01-17:00, Fri., 16 Dec. 0.0286 0.0255 0.0272
15:01-16:00, Fri., 16 Dec. 0.0298 0.0257 0.0271
14:01-15:00, Fri., 16 Dec. 0.0293 0.0257 0.0277
13:01-14:00, Fri., 16 Dec. 0.0295 0.0261 0.0277
12:01-13:00, Fri., 16 Dec. 0.0299 0.0254 0.0281
11:01-12:00, Fri., 16 Dec. 0.0309 0.0269 0.0287
10:01-11:00, Fri., 16 Dec. 0.0307 0.0265 0.0288
09:01-10:00, Fri., 16 Dec. 0.0315 0.0270 0.0288
08:01-09:00, Fri., 16 Dec. 0.0312 0.0274 0.0291
07:01-08:00, Fri., 16 Dec. 0.0311 0.0273 0.0293
06:01-07:00, Fri., 16 Dec. 0.0313 0.0272 0.0292
05:01-06:00, Fri., 16 Dec. 0.0321 0.0277 0.0297
04:01-05:00, Fri., 16 Dec. 0.0320 0.0273 0.0292
03:01-04:00, Fri., 16 Dec. 0.0321 0.0271 0.0293
02:01-03:00, Fri., 16 Dec. 0.0310 0.0269 0.0293
01:01-02:00, Fri., 16 Dec. 0.0310 0.0271 0.0289
00:01-01:00, Fri., 16 Dec. 0.0314 0.0274 0.0290
23:01-24:00, Thu., 15 Dec. 0.0303 0.0263 0.0286
22:01-23:00, Thu., 15 Dec. 0.0292 0.0255 0.0275
21:01-22:00, Thu., 15 Dec. 0.0296 0.0252 0.0272
20:01-21:00, Thu., 15 Dec. 0.0294 0.0263 0.0274
19:01-20:00, Thu., 15 Dec. 0.0289 0.0249 0.0271
18:01-19:00, Thu., 15 Dec. 0.0294 0.0256 0.0273
17:01-18:00, Thu., 15 Dec. 0.0293 0.0255 0.0271
16:01-17:00, Thu., 15 Dec. 0.0287 0.0245 0.0268
15:01-16:00, Thu., 15 Dec. 0.0284 0.0249 0.0266
14:01-15:00, Thu., 15 Dec. 0.0288 0.0253 0.0270
13:01-14:00, Thu., 15 Dec. 0.0296 0.0254 0.0275
12:01-13:00, Thu., 15 Dec. 0.0294 0.0254 0.0276
11:01-12:00, Thu., 15 Dec. 0.0301 0.0254 0.0279
10:01-11:00, Thu., 15 Dec. 0.0312 0.0265 0.0289
09:01-10:00, Thu., 15 Dec. 0.0314 0.0279 0.0297
08:01-09:00, Thu., 15 Dec. 0.0315 0.0278 0.0300
07:01-08:00, Thu., 15 Dec. 0.0316 0.0276 0.0295
06:01-07:00, Thu., 15 Dec. 0.0317 0.0277 0.0295
05:01-06:00, Thu., 15 Dec. 0.0311 0.0269 0.0292
04:01-05:00, Thu., 15 Dec. 0.0309 0.0273 0.0293
03:01-04:00, Thu., 15 Dec. 0.0315 0.0262 0.0286
02:01-03:00, Thu., 15 Dec. 0.0296 0.0256 0.0275
01:01-02:00, Thu., 15 Dec. 0.0291 0.0245 0.0270
00:01-01:00, Thu., 15 Dec. 0.0288 0.0248 0.0271
23:01-24:00, Wed., 14 Dec. 0.0286 0.0245 0.0268
22:01-23:00, Wed., 14 Dec. 0.0290 0.0251 0.0269
21:01-22:00, Wed., 14 Dec. 0.0292 0.0248 0.0269
20:01-21:00, Wed., 14 Dec. 0.0295 0.0250 0.0271
19:01-20:00, Wed., 14 Dec. 0.0287 0.0255 0.0269
18:01-19:00, Wed., 14 Dec. 0.0288 0.0247 0.0269
17:01-18:00, Wed., 14 Dec. 0.0281 0.0245 0.0267
16:01-17:00, Wed., 14 Dec. 0.0285 0.0251 0.0270
15:01-16:00, Wed., 14 Dec. 0.0290 0.0252 0.0270
14:01-15:00, Wed., 14 Dec. 0.0292 0.0253 0.0269
13:01-14:00, Wed., 14 Dec. 0.0289 0.0252 0.0273
12:01-13:00, Wed., 14 Dec. 0.0298 0.0255 0.0278
11:01-12:00, Wed., 14 Dec. 0.0307 0.0264 0.0280
10:01-11:00, Wed., 14 Dec. 0.0291 0.0259 0.0273
09:01-10:00, Wed., 14 Dec. 0.0295 0.0252 0.0273
08:01-09:00, Wed., 14 Dec. 0.0295 0.0260 0.0279
07:01-08:00, Wed., 14 Dec. 0.0303 0.0261 0.0283
06:01-07:00, Wed., 14 Dec. 0.0299 0.0258 0.0277
05:01-06:00, Wed., 14 Dec. 0.0298 0.0252 0.0272
04:01-05:00, Wed., 14 Dec. 0.0296 0.0260 0.0275
03:01-04:00, Wed., 14 Dec. 0.0294 0.0260 0.0276
02:01-03:00, Wed., 14 Dec. 0.0318 0.0261 0.0279
01:01-02:00, Wed., 14 Dec. 0.0298 0.0261 0.0279
00:01-01:00, Wed., 14 Dec. 0.0298 0.0260 0.0276
23:01-24:00, Tue., 13 Dec. 0.0305 0.0255 0.0282
22:01-23:00, Tue., 13 Dec. 0.0302 0.0256 0.0279
21:01-22:00, Tue., 13 Dec. 0.0298 0.0253 0.0277
20:01-21:00, Tue., 13 Dec. 0.0295 0.0258 0.0277
19:01-20:00, Tue., 13 Dec. 0.0291 0.0261 0.0275
18:01-19:00, Tue., 13 Dec. 0.0287 0.0252 0.0269
17:01-18:00, Tue., 13 Dec. 0.0286 0.0252 0.0268
16:01-17:00, Tue., 13 Dec. 0.0293 0.0251 0.0270
15:01-16:00, Tue., 13 Dec. 0.0308 0.0257 0.0285
14:01-15:00, Tue., 13 Dec. 0.0366 0.0288 0.0323
13:01-14:00, Tue., 13 Dec. 0.0383 0.0290 0.0332
12:01-13:00, Tue., 13 Dec. 0.0314 0.0264 0.0281
11:01-12:00, Tue., 13 Dec. 0.0308 0.0260 0.0276
10:01-11:00, Tue., 13 Dec. 0.0311 0.0262 0.0285
09:01-10:00, Tue., 13 Dec. 0.0360 0.0290 0.0322
08:01-09:00, Tue., 13 Dec. 0.0368 0.0313 0.0344
07:01-08:00, Tue., 13 Dec. 0.0341 0.0299 0.0319
06:01-07:00, Tue., 13 Dec. 0.0338 0.0294 0.0310
05:01-06:00, Tue., 13 Dec. 0.0333 0.0282 0.0312
04:01-05:00, Tue., 13 Dec. 0.0303 0.0259 0.0280
03:01-04:00, Tue., 13 Dec. 0.0300 0.0258 0.0279
02:01-03:00, Tue., 13 Dec. 0.0300 0.0262 0.0279
01:01-02:00, Tue., 13 Dec. 0.0310 0.0272 0.0287
00:01-01:00, Tue., 13 Dec. 0.0305 0.0264 0.0281
23:01-24:00, Mon., 12 Dec. 0.0298 0.0255 0.0278
22:01-23:00, Mon., 12 Dec. 0.0298 0.0255 0.0275
21:01-22:00, Mon., 12 Dec. 0.0287 0.0253 0.0270
20:01-21:00, Mon., 12 Dec. 0.0285 0.0253 0.0268
19:01-20:00, Mon., 12 Dec. 0.0294 0.0251 0.0267
18:01-19:00, Mon., 12 Dec. 0.0283 0.0250 0.0266
17:01-18:00, Mon., 12 Dec. 0.0287 0.0249 0.0264
16:01-17:00, Mon., 12 Dec. 0.0291 0.0250 0.0267
15:01-16:00, Mon., 12 Dec. 0.0284 0.0250 0.0270
14:01-15:00, Mon., 12 Dec. 0.0294 0.0257 0.0271
13:01-14:00, Mon., 12 Dec. 0.0298 0.0245 0.0269
12:01-13:00, Mon., 12 Dec. 0.0294 0.0246 0.0268
11:01-12:00, Mon., 12 Dec. 0.0288 0.0255 0.0271
10:01-11:00, Mon., 12 Dec. 0.0286 0.0248 0.0272
09:01-10:00, Mon., 12 Dec. 0.0291 0.0259 0.0271
08:01-09:00, Mon., 12 Dec. 0.0291 0.0258 0.0273
07:01-08:00, Mon., 12 Dec. 0.0293 0.0252 0.0272
06:01-07:00, Mon., 12 Dec. 0.0289 0.0255 0.0273
05:01-06:00, Mon., 12 Dec. 0.0297 0.0257 0.0273
04:01-05:00, Mon., 12 Dec. 0.0298 0.0260 0.0274
03:01-04:00, Mon., 12 Dec. 0.0290 0.0246 0.0274
02:01-03:00, Mon., 12 Dec. 0.0297 0.0263 0.0275
01:01-02:00, Mon., 12 Dec. 0.0293 0.0261 0.0279
00:01-01:00, Mon., 12 Dec. 0.0345 0.0274 0.0304