Measurement results by the hour (Chofu) 5 Apr., 2021 - 11 Apr., 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., 11 Apr. 0.0289 0.0259 0.0273
22:01-23:00, Sun., 11 Apr. 0.0295 0.0245 0.0269
21:01-22:00, Sun., 11 Apr. 0.0288 0.0256 0.0269
20:01-21:00, Sun., 11 Apr. 0.0294 0.0250 0.0271
19:01-20:00, Sun., 11 Apr. 0.0284 0.0250 0.0271
18:01-19:00, Sun., 11 Apr. 0.0290 0.0256 0.0271
17:01-18:00, Sun., 11 Apr. 0.0288 0.0257 0.0270
16:01-17:00, Sun., 11 Apr. 0.0289 0.0252 0.0269
15:01-16:00, Sun., 11 Apr. 0.0295 0.0252 0.0271
14:01-15:00, Sun., 11 Apr. 0.0290 0.0257 0.0270
13:01-14:00, Sun., 11 Apr. 0.0289 0.0253 0.0270
12:01-13:00, Sun., 11 Apr. 0.0286 0.0257 0.0271
11:01-12:00, Sun., 11 Apr. 0.0289 0.0252 0.0272
10:01-11:00, Sun., 11 Apr. 0.0292 0.0259 0.0273
09:01-10:00, Sun., 11 Apr. 0.0298 0.0250 0.0274
08:01-09:00, Sun., 11 Apr. 0.0306 0.0251 0.0277
07:01-08:00, Sun., 11 Apr. 0.0313 0.0272 0.0290
06:01-07:00, Sun., 11 Apr. 0.0313 0.0276 0.0294
05:01-06:00, Sun., 11 Apr. 0.0308 0.0261 0.0283
04:01-05:00, Sun., 11 Apr. 0.0302 0.0265 0.0283
03:01-04:00, Sun., 11 Apr. 0.0300 0.0263 0.0278
02:01-03:00, Sun., 11 Apr. 0.0307 0.0257 0.0277
01:01-02:00, Sun., 11 Apr. 0.0292 0.0254 0.0278
00:01-01:00, Sun., 11 Apr. 0.0291 0.0253 0.0271
23:01-24:00, Sat., 10 Apr. 0.0292 0.0248 0.0269
22:01-23:00, Sat., 10 Apr. 0.0286 0.0252 0.0268
21:01-22:00, Sat., 10 Apr. 0.0294 0.0254 0.0270
20:01-21:00, Sat., 10 Apr. 0.0289 0.0253 0.0268
19:01-20:00, Sat., 10 Apr. 0.0287 0.0251 0.0269
18:01-19:00, Sat., 10 Apr. 0.0282 0.0251 0.0267
17:01-18:00, Sat., 10 Apr. 0.0286 0.0250 0.0270
16:01-17:00, Sat., 10 Apr. 0.0292 0.0245 0.0271
15:01-16:00, Sat., 10 Apr. 0.0289 0.0255 0.0272
14:01-15:00, Sat., 10 Apr. 0.0289 0.0255 0.0270
13:01-14:00, Sat., 10 Apr. 0.0292 0.0254 0.0272
12:01-13:00, Sat., 10 Apr. 0.0287 0.0252 0.0273
11:01-12:00, Sat., 10 Apr. 0.0290 0.0255 0.0273
10:01-11:00, Sat., 10 Apr. 0.0290 0.0254 0.0273
09:01-10:00, Sat., 10 Apr. 0.0287 0.0249 0.0273
08:01-09:00, Sat., 10 Apr. 0.0295 0.0259 0.0274
07:01-08:00, Sat., 10 Apr. 0.0289 0.0250 0.0272
06:01-07:00, Sat., 10 Apr. 0.0297 0.0254 0.0275
05:01-06:00, Sat., 10 Apr. 0.0291 0.0256 0.0275
04:01-05:00, Sat., 10 Apr. 0.0291 0.0252 0.0274
03:01-04:00, Sat., 10 Apr. 0.0294 0.0255 0.0273
02:01-03:00, Sat., 10 Apr. 0.0290 0.0250 0.0271
01:01-02:00, Sat., 10 Apr. 0.0298 0.0257 0.0272
00:01-01:00, Sat., 10 Apr. 0.0295 0.0250 0.0274
23:01-24:00, Fri., 09 Apr. 0.0294 0.0250 0.0271
22:01-23:00, Fri., 09 Apr. 0.0297 0.0248 0.0273
21:01-22:00, Fri., 09 Apr. 0.0290 0.0252 0.0272
20:01-21:00, Fri., 09 Apr. 0.0293 0.0257 0.0273
19:01-20:00, Fri., 09 Apr. 0.0292 0.0243 0.0273
18:01-19:00, Fri., 09 Apr. 0.0314 0.0264 0.0285
17:01-18:00, Fri., 09 Apr. 0.0331 0.0265 0.0292
16:01-17:00, Fri., 09 Apr. 0.0300 0.0263 0.0278
15:01-16:00, Fri., 09 Apr. 0.0293 0.0259 0.0273
14:01-15:00, Fri., 09 Apr. 0.0287 0.0254 0.0268
13:01-14:00, Fri., 09 Apr. 0.0293 0.0253 0.0272
12:01-13:00, Fri., 09 Apr. 0.0289 0.0253 0.0272
11:01-12:00, Fri., 09 Apr. 0.0291 0.0248 0.0271
10:01-11:00, Fri., 09 Apr. 0.0292 0.0251 0.0271
09:01-10:00, Fri., 09 Apr. 0.0290 0.0255 0.0275
08:01-09:00, Fri., 09 Apr. 0.0292 0.0257 0.0273
07:01-08:00, Fri., 09 Apr. 0.0289 0.0254 0.0271
06:01-07:00, Fri., 09 Apr. 0.0295 0.0256 0.0274
05:01-06:00, Fri., 09 Apr. 0.0296 0.0258 0.0273
04:01-05:00, Fri., 09 Apr. 0.0293 0.0252 0.0271
03:01-04:00, Fri., 09 Apr. 0.0293 0.0254 0.0271
02:01-03:00, Fri., 09 Apr. 0.0288 0.0248 0.0267
01:01-02:00, Fri., 09 Apr. 0.0289 0.0251 0.0269
00:01-01:00, Fri., 09 Apr. 0.0289 0.0254 0.0270
23:01-24:00, Thu., 08 Apr. 0.0295 0.0254 0.0271
22:01-23:00, Thu., 08 Apr. 0.0293 0.0250 0.0272
21:01-22:00, Thu., 08 Apr. 0.0290 0.0250 0.0272
20:01-21:00, Thu., 08 Apr. 0.0333 0.0268 0.0289
19:01-20:00, Thu., 08 Apr. 0.0413 0.0303 0.0346
18:01-19:00, Thu., 08 Apr. 0.0571 0.0388 0.0487
17:01-18:00, Thu., 08 Apr. 0.0515 0.0244 0.0322
16:01-17:00, Thu., 08 Apr. 0.0289 0.0259 0.0272
15:01-16:00, Thu., 08 Apr. 0.0294 0.0248 0.0270
14:01-15:00, Thu., 08 Apr. 0.0289 0.0250 0.0268
13:01-14:00, Thu., 08 Apr. 0.0290 0.0245 0.0271
12:01-13:00, Thu., 08 Apr. 0.0292 0.0249 0.0271
11:01-12:00, Thu., 08 Apr. 0.0290 0.0250 0.0271
10:01-11:00, Thu., 08 Apr. 0.0295 0.0253 0.0273
09:01-10:00, Thu., 08 Apr. 0.0301 0.0252 0.0273
08:01-09:00, Thu., 08 Apr. 0.0287 0.0258 0.0272
07:01-08:00, Thu., 08 Apr. 0.0297 0.0252 0.0273
06:01-07:00, Thu., 08 Apr. 0.0288 0.0257 0.0272
05:01-06:00, Thu., 08 Apr. 0.0292 0.0258 0.0273
04:01-05:00, Thu., 08 Apr. 0.0289 0.0245 0.0270
03:01-04:00, Thu., 08 Apr. 0.0291 0.0254 0.0272
02:01-03:00, Thu., 08 Apr. 0.0294 0.0257 0.0272
01:01-02:00, Thu., 08 Apr. 0.0291 0.0258 0.0274
00:01-01:00, Thu., 08 Apr. 0.0291 0.0252 0.0271
23:01-24:00, Wed., 07 Apr. 0.0298 0.0251 0.0273
22:01-23:00, Wed., 07 Apr. 0.0294 0.0247 0.0269
21:01-22:00, Wed., 07 Apr. 0.0288 0.0255 0.0272
20:01-21:00, Wed., 07 Apr. 0.0284 0.0250 0.0270
19:01-20:00, Wed., 07 Apr. 0.0291 0.0251 0.0270
18:01-19:00, Wed., 07 Apr. 0.0289 0.0244 0.0271
17:01-18:00, Wed., 07 Apr. 0.0293 0.0248 0.0271
16:01-17:00, Wed., 07 Apr. 0.0292 0.0250 0.0271
15:01-16:00, Wed., 07 Apr. 0.0287 0.0258 0.0271
14:01-15:00, Wed., 07 Apr. 0.0296 0.0253 0.0272
13:01-14:00, Wed., 07 Apr. 0.0290 0.0255 0.0272
12:01-13:00, Wed., 07 Apr. 0.0295 0.0250 0.0271
11:01-12:00, Wed., 07 Apr. 0.0296 0.0259 0.0273
10:01-11:00, Wed., 07 Apr. 0.0293 0.0249 0.0274
09:01-10:00, Wed., 07 Apr. 0.0289 0.0247 0.0273
08:01-09:00, Wed., 07 Apr. 0.0290 0.0255 0.0273
07:01-08:00, Wed., 07 Apr. 0.0285 0.0251 0.0269
06:01-07:00, Wed., 07 Apr. 0.0293 0.0251 0.0270
05:01-06:00, Wed., 07 Apr. 0.0283 0.0254 0.0270
04:01-05:00, Wed., 07 Apr. 0.0287 0.0246 0.0270
03:01-04:00, Wed., 07 Apr. 0.0286 0.0251 0.0268
02:01-03:00, Wed., 07 Apr. 0.0286 0.0249 0.0267
01:01-02:00, Wed., 07 Apr. 0.0290 0.0249 0.0269
00:01-01:00, Wed., 07 Apr. 0.0288 0.0251 0.0267
23:01-24:00, Tue., 06 Apr. 0.0288 0.0248 0.0266
22:01-23:00, Tue., 06 Apr. 0.0289 0.0240 0.0266
21:01-22:00, Tue., 06 Apr. 0.0292 0.0244 0.0265
20:01-21:00, Tue., 06 Apr. 0.0284 0.0245 0.0267
19:01-20:00, Tue., 06 Apr. 0.0286 0.0248 0.0267
18:01-19:00, Tue., 06 Apr. 0.0286 0.0250 0.0266
17:01-18:00, Tue., 06 Apr. 0.0287 0.0242 0.0264
16:01-17:00, Tue., 06 Apr. 0.0283 0.0251 0.0267
15:01-16:00, Tue., 06 Apr. 0.0289 0.0244 0.0267
14:01-15:00, Tue., 06 Apr. 0.0288 0.0249 0.0267
13:01-14:00, Tue., 06 Apr. 0.0282 0.0245 0.0267
12:01-13:00, Tue., 06 Apr. 0.0286 0.0248 0.0268
11:01-12:00, Tue., 06 Apr. 0.0287 0.0251 0.0270
10:01-11:00, Tue., 06 Apr. 0.0301 0.0237 0.0269
09:01-10:00, Tue., 06 Apr. 0.0292 0.0252 0.0272
08:01-09:00, Tue., 06 Apr. 0.0291 0.0256 0.0273
07:01-08:00, Tue., 06 Apr. 0.0292 0.0254 0.0270
06:01-07:00, Tue., 06 Apr. 0.0293 0.0254 0.0272
05:01-06:00, Tue., 06 Apr. 0.0290 0.0253 0.0271
04:01-05:00, Tue., 06 Apr. 0.0287 0.0253 0.0270
03:01-04:00, Tue., 06 Apr. 0.0286 0.0245 0.0270
02:01-03:00, Tue., 06 Apr. 0.0288 0.0250 0.0269
01:01-02:00, Tue., 06 Apr. 0.0284 0.0254 0.0268
00:01-01:00, Tue., 06 Apr. 0.0291 0.0247 0.0266
23:01-24:00, Mon., 05 Apr. 0.0288 0.0250 0.0268
22:01-23:00, Mon., 05 Apr. 0.0285 0.0248 0.0266
21:01-22:00, Mon., 05 Apr. 0.0290 0.0248 0.0269
20:01-21:00, Mon., 05 Apr. 0.0292 0.0247 0.0267
19:01-20:00, Mon., 05 Apr. 0.0283 0.0248 0.0267
18:01-19:00, Mon., 05 Apr. 0.0286 0.0251 0.0268
17:01-18:00, Mon., 05 Apr. 0.0308 0.0257 0.0274
16:01-17:00, Mon., 05 Apr. 0.0311 0.0260 0.0283
15:01-16:00, Mon., 05 Apr. 0.0324 0.0283 0.0301
14:01-15:00, Mon., 05 Apr. 0.0363 0.0282 0.0319
13:01-14:00, Mon., 05 Apr. 0.0423 0.0342 0.0376
12:01-13:00, Mon., 05 Apr. 0.0491 0.0389 0.0432
11:01-12:00, Mon., 05 Apr. 0.0412 0.0317 0.0359
10:01-11:00, Mon., 05 Apr. 0.0325 0.0256 0.0275
09:01-10:00, Mon., 05 Apr. 0.0287 0.0252 0.0271
08:01-09:00, Mon., 05 Apr. 0.0287 0.0251 0.0270
07:01-08:00, Mon., 05 Apr. 0.0300 0.0253 0.0273
06:01-07:00, Mon., 05 Apr. 0.0299 0.0264 0.0281
05:01-06:00, Mon., 05 Apr. 0.0314 0.0264 0.0290
04:01-05:00, Mon., 05 Apr. 0.0418 0.0303 0.0349
03:01-04:00, Mon., 05 Apr. 0.0453 0.0369 0.0409
02:01-03:00, Mon., 05 Apr. 0.0403 0.0323 0.0358
01:01-02:00, Mon., 05 Apr. 0.0350 0.0277 0.0306
00:01-01:00, Mon., 05 Apr. 0.0354 0.0289 0.0320