Measurement results by the hour (Chofu) 13 Sep., 2021 - 19 Sep., 2021

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., 19 Sep. 0.0287 0.0249 0.0266
22:01-23:00, Sun., 19 Sep. 0.0283 0.0240 0.0267
21:01-22:00, Sun., 19 Sep. 0.0284 0.0246 0.0266
20:01-21:00, Sun., 19 Sep. 0.0285 0.0243 0.0265
19:01-20:00, Sun., 19 Sep. 0.0285 0.0245 0.0262
18:01-19:00, Sun., 19 Sep. 0.0280 0.0243 0.0263
17:01-18:00, Sun., 19 Sep. 0.0288 0.0249 0.0265
16:01-17:00, Sun., 19 Sep. 0.0289 0.0241 0.0267
15:01-16:00, Sun., 19 Sep. 0.0289 0.0246 0.0268
14:01-15:00, Sun., 19 Sep. 0.0289 0.0252 0.0265
13:01-14:00, Sun., 19 Sep. 0.0289 0.0250 0.0266
12:01-13:00, Sun., 19 Sep. 0.0291 0.0251 0.0267
11:01-12:00, Sun., 19 Sep. 0.0286 0.0249 0.0263
10:01-11:00, Sun., 19 Sep. 0.0283 0.0240 0.0265
09:01-10:00, Sun., 19 Sep. 0.0285 0.0251 0.0268
08:01-09:00, Sun., 19 Sep. 0.0288 0.0245 0.0269
07:01-08:00, Sun., 19 Sep. 0.0292 0.0250 0.0269
06:01-07:00, Sun., 19 Sep. 0.0290 0.0256 0.0273
05:01-06:00, Sun., 19 Sep. 0.0296 0.0249 0.0271
04:01-05:00, Sun., 19 Sep. 0.0282 0.0246 0.0267
03:01-04:00, Sun., 19 Sep. 0.0286 0.0251 0.0267
02:01-03:00, Sun., 19 Sep. 0.0287 0.0245 0.0265
01:01-02:00, Sun., 19 Sep. 0.0280 0.0240 0.0264
00:01-01:00, Sun., 19 Sep. 0.0290 0.0243 0.0264
23:01-24:00, Sat., 18 Sep. 0.0288 0.0251 0.0266
22:01-23:00, Sat., 18 Sep. 0.0310 0.0258 0.0278
21:01-22:00, Sat., 18 Sep. 0.0373 0.0271 0.0326
20:01-21:00, Sat., 18 Sep. 0.0459 0.0347 0.0415
19:01-20:00, Sat., 18 Sep. 0.0514 0.0414 0.0467
18:01-19:00, Sat., 18 Sep. 0.0501 0.0256 0.0344
17:01-18:00, Sat., 18 Sep. 0.0295 0.0248 0.0270
16:01-17:00, Sat., 18 Sep. 0.0279 0.0239 0.0258
15:01-16:00, Sat., 18 Sep. 0.0283 0.0241 0.0261
14:01-15:00, Sat., 18 Sep. 0.0295 0.0244 0.0269
13:01-14:00, Sat., 18 Sep. 0.0286 0.0251 0.0270
12:01-13:00, Sat., 18 Sep. 0.0297 0.0259 0.0277
11:01-12:00, Sat., 18 Sep. 0.0311 0.0269 0.0289
10:01-11:00, Sat., 18 Sep. 0.0341 0.0285 0.0309
09:01-10:00, Sat., 18 Sep. 0.0323 0.0275 0.0302
08:01-09:00, Sat., 18 Sep. 0.0331 0.0273 0.0300
07:01-08:00, Sat., 18 Sep. 0.0403 0.0309 0.0348
06:01-07:00, Sat., 18 Sep. 0.0415 0.0342 0.0371
05:01-06:00, Sat., 18 Sep. 0.0387 0.0340 0.0357
04:01-05:00, Sat., 18 Sep. 0.0388 0.0335 0.0359
03:01-04:00, Sat., 18 Sep. 0.0397 0.0339 0.0366
02:01-03:00, Sat., 18 Sep. 0.0354 0.0290 0.0324
01:01-02:00, Sat., 18 Sep. 0.0322 0.0274 0.0299
00:01-01:00, Sat., 18 Sep. 0.0304 0.0257 0.0282
23:01-24:00, Fri., 17 Sep. 0.0318 0.0280 0.0300
22:01-23:00, Fri., 17 Sep. 0.0308 0.0254 0.0279
21:01-22:00, Fri., 17 Sep. 0.0288 0.0249 0.0270
20:01-21:00, Fri., 17 Sep. 0.0291 0.0254 0.0273
19:01-20:00, Fri., 17 Sep. 0.0306 0.0260 0.0282
18:01-19:00, Fri., 17 Sep. 0.0308 0.0248 0.0275
17:01-18:00, Fri., 17 Sep. 0.0291 0.0248 0.0268
16:01-17:00, Fri., 17 Sep. 0.0283 0.0248 0.0267
15:01-16:00, Fri., 17 Sep. 0.0289 0.0249 0.0270
14:01-15:00, Fri., 17 Sep. 0.0289 0.0246 0.0265
13:01-14:00, Fri., 17 Sep. 0.0287 0.0252 0.0269
12:01-13:00, Fri., 17 Sep. 0.0291 0.0250 0.0267
11:01-12:00, Fri., 17 Sep. 0.0284 0.0246 0.0270
10:01-11:00, Fri., 17 Sep. 0.0289 0.0249 0.0266
09:01-10:00, Fri., 17 Sep. 0.0294 0.0247 0.0270
08:01-09:00, Fri., 17 Sep. 0.0287 0.0249 0.0269
07:01-08:00, Fri., 17 Sep. 0.0289 0.0256 0.0272
06:01-07:00, Fri., 17 Sep. 0.0294 0.0247 0.0273
05:01-06:00, Fri., 17 Sep. 0.0296 0.0255 0.0274
04:01-05:00, Fri., 17 Sep. 0.0288 0.0249 0.0270
03:01-04:00, Fri., 17 Sep. 0.0287 0.0248 0.0270
02:01-03:00, Fri., 17 Sep. 0.0288 0.0252 0.0268
01:01-02:00, Fri., 17 Sep. 0.0304 0.0249 0.0272
00:01-01:00, Fri., 17 Sep. 0.0284 0.0251 0.0268
23:01-24:00, Thu., 16 Sep. 0.0286 0.0253 0.0270
22:01-23:00, Thu., 16 Sep. 0.0285 0.0252 0.0267
21:01-22:00, Thu., 16 Sep. 0.0285 0.0253 0.0268
20:01-21:00, Thu., 16 Sep. 0.0284 0.0245 0.0264
19:01-20:00, Thu., 16 Sep. 0.0279 0.0249 0.0265
18:01-19:00, Thu., 16 Sep. 0.0281 0.0249 0.0265
17:01-18:00, Thu., 16 Sep. 0.0292 0.0240 0.0269
16:01-17:00, Thu., 16 Sep. 0.0287 0.0247 0.0268
15:01-16:00, Thu., 16 Sep. 0.0285 0.0245 0.0267
14:01-15:00, Thu., 16 Sep. 0.0285 0.0248 0.0267
13:01-14:00, Thu., 16 Sep. 0.0290 0.0249 0.0270
12:01-13:00, Thu., 16 Sep. 0.0286 0.0248 0.0270
11:01-12:00, Thu., 16 Sep. 0.0285 0.0251 0.0268
10:01-11:00, Thu., 16 Sep. 0.0290 0.0246 0.0269
09:01-10:00, Thu., 16 Sep. 0.0288 0.0247 0.0271
08:01-09:00, Thu., 16 Sep. 0.0287 0.0252 0.0272
07:01-08:00, Thu., 16 Sep. 0.0285 0.0255 0.0270
06:01-07:00, Thu., 16 Sep. 0.0289 0.0255 0.0273
05:01-06:00, Thu., 16 Sep. 0.0295 0.0254 0.0272
04:01-05:00, Thu., 16 Sep. 0.0291 0.0249 0.0273
03:01-04:00, Thu., 16 Sep. 0.0294 0.0247 0.0275
02:01-03:00, Thu., 16 Sep. 0.0293 0.0254 0.0272
01:01-02:00, Thu., 16 Sep. 0.0287 0.0245 0.0269
00:01-01:00, Thu., 16 Sep. 0.0292 0.0257 0.0273
23:01-24:00, Wed., 15 Sep. 0.0288 0.0251 0.0268
22:01-23:00, Wed., 15 Sep. 0.0287 0.0254 0.0271
21:01-22:00, Wed., 15 Sep. 0.0291 0.0252 0.0267
20:01-21:00, Wed., 15 Sep. 0.0294 0.0251 0.0269
19:01-20:00, Wed., 15 Sep. 0.0290 0.0252 0.0269
18:01-19:00, Wed., 15 Sep. 0.0290 0.0250 0.0272
17:01-18:00, Wed., 15 Sep. 0.0294 0.0256 0.0273
16:01-17:00, Wed., 15 Sep. 0.0289 0.0246 0.0269
15:01-16:00, Wed., 15 Sep. 0.0291 0.0256 0.0273
14:01-15:00, Wed., 15 Sep. 0.0292 0.0245 0.0270
13:01-14:00, Wed., 15 Sep. 0.0282 0.0259 0.0269
12:01-13:00, Wed., 15 Sep. 0.0289 0.0250 0.0270
11:01-12:00, Wed., 15 Sep. 0.0291 0.0250 0.0269
10:01-11:00, Wed., 15 Sep. 0.0285 0.0244 0.0265
09:01-10:00, Wed., 15 Sep. 0.0288 0.0249 0.0265
08:01-09:00, Wed., 15 Sep. 0.0284 0.0254 0.0268
07:01-08:00, Wed., 15 Sep. 0.0281 0.0252 0.0268
06:01-07:00, Wed., 15 Sep. 0.0288 0.0256 0.0272
05:01-06:00, Wed., 15 Sep. 0.0316 0.0263 0.0288
04:01-05:00, Wed., 15 Sep. 0.0325 0.0275 0.0296
03:01-04:00, Wed., 15 Sep. 0.0316 0.0276 0.0294
02:01-03:00, Wed., 15 Sep. 0.0334 0.0295 0.0314
01:01-02:00, Wed., 15 Sep. 0.0330 0.0285 0.0306
00:01-01:00, Wed., 15 Sep. 0.0341 0.0294 0.0316
23:01-24:00, Tue., 14 Sep. 0.0359 0.0316 0.0336
22:01-23:00, Tue., 14 Sep. 0.0359 0.0266 0.0308
21:01-22:00, Tue., 14 Sep. 0.0318 0.0272 0.0296
20:01-21:00, Tue., 14 Sep. 0.0307 0.0269 0.0289
19:01-20:00, Tue., 14 Sep. 0.0318 0.0275 0.0294
18:01-19:00, Tue., 14 Sep. 0.0321 0.0277 0.0300
17:01-18:00, Tue., 14 Sep. 0.0329 0.0282 0.0301
16:01-17:00, Tue., 14 Sep. 0.0306 0.0273 0.0291
15:01-16:00, Tue., 14 Sep. 0.0301 0.0258 0.0280
14:01-15:00, Tue., 14 Sep. 0.0295 0.0257 0.0275
13:01-14:00, Tue., 14 Sep. 0.0301 0.0259 0.0277
12:01-13:00, Tue., 14 Sep. 0.0296 0.0257 0.0275
11:01-12:00, Tue., 14 Sep. 0.0293 0.0256 0.0278
10:01-11:00, Tue., 14 Sep. 0.0302 0.0260 0.0279
09:01-10:00, Tue., 14 Sep. 0.0294 0.0262 0.0280
08:01-09:00, Tue., 14 Sep. 0.0301 0.0260 0.0280
07:01-08:00, Tue., 14 Sep. 0.0297 0.0264 0.0281
06:01-07:00, Tue., 14 Sep. 0.0300 0.0265 0.0282
05:01-06:00, Tue., 14 Sep. 0.0302 0.0262 0.0279
04:01-05:00, Tue., 14 Sep. 0.0295 0.0263 0.0278
03:01-04:00, Tue., 14 Sep. 0.0295 0.0256 0.0276
02:01-03:00, Tue., 14 Sep. 0.0293 0.0252 0.0277
01:01-02:00, Tue., 14 Sep. 0.0292 0.0259 0.0277
00:01-01:00, Tue., 14 Sep. 0.0301 0.0255 0.0279
23:01-24:00, Mon., 13 Sep. 0.0294 0.0260 0.0274
22:01-23:00, Mon., 13 Sep. 0.0287 0.0253 0.0275
21:01-22:00, Mon., 13 Sep. 0.0294 0.0256 0.0277
20:01-21:00, Mon., 13 Sep. 0.0293 0.0258 0.0278
19:01-20:00, Mon., 13 Sep. 0.0295 0.0256 0.0277
18:01-19:00, Mon., 13 Sep. 0.0296 0.0256 0.0275
17:01-18:00, Mon., 13 Sep. 0.0297 0.0260 0.0277
16:01-17:00, Mon., 13 Sep. 0.0297 0.0260 0.0280
15:01-16:00, Mon., 13 Sep. 0.0298 0.0260 0.0277
14:01-15:00, Mon., 13 Sep. 0.0291 0.0253 0.0274
13:01-14:00, Mon., 13 Sep. 0.0295 0.0259 0.0274
12:01-13:00, Mon., 13 Sep. 0.0296 0.0260 0.0276
11:01-12:00, Mon., 13 Sep. 0.0304 0.0259 0.0277
10:01-11:00, Mon., 13 Sep. 0.0291 0.0257 0.0277
09:01-10:00, Mon., 13 Sep. 0.0312 0.0259 0.0278
08:01-09:00, Mon., 13 Sep. 0.0310 0.0268 0.0288
07:01-08:00, Mon., 13 Sep. 0.0321 0.0277 0.0299
06:01-07:00, Mon., 13 Sep. 0.0315 0.0282 0.0301
05:01-06:00, Mon., 13 Sep. 0.0324 0.0277 0.0301
04:01-05:00, Mon., 13 Sep. 0.0326 0.0284 0.0307
03:01-04:00, Mon., 13 Sep. 0.0326 0.0290 0.0308
02:01-03:00, Mon., 13 Sep. 0.0324 0.0284 0.0303
01:01-02:00, Mon., 13 Sep. 0.0328 0.0282 0.0302
00:01-01:00, Mon., 13 Sep. 0.0323 0.0275 0.0300