Measurement results by the hour (Chofu) 25 Apr., 2022 - 1 May., 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., 01 May. 0.0299 0.0240 0.0264
22:01-23:00, Sun., 01 May. 0.0286 0.0248 0.0265
21:01-22:00, Sun., 01 May. 0.0303 0.0244 0.0269
20:01-21:00, Sun., 01 May. 0.0319 0.0265 0.0293
19:01-20:00, Sun., 01 May. 0.0367 0.0296 0.0333
18:01-19:00, Sun., 01 May. 0.0367 0.0326 0.0348
17:01-18:00, Sun., 01 May. 0.0374 0.0335 0.0354
16:01-17:00, Sun., 01 May. 0.0370 0.0327 0.0348
15:01-16:00, Sun., 01 May. 0.0429 0.0331 0.0368
14:01-15:00, Sun., 01 May. 0.0422 0.0344 0.0380
13:01-14:00, Sun., 01 May. 0.0358 0.0258 0.0311
12:01-13:00, Sun., 01 May. 0.0295 0.0241 0.0264
11:01-12:00, Sun., 01 May. 0.0293 0.0245 0.0266
10:01-11:00, Sun., 01 May. 0.0287 0.0252 0.0266
09:01-10:00, Sun., 01 May. 0.0281 0.0241 0.0263
08:01-09:00, Sun., 01 May. 0.0282 0.0249 0.0267
07:01-08:00, Sun., 01 May. 0.0284 0.0240 0.0264
06:01-07:00, Sun., 01 May. 0.0282 0.0249 0.0266
05:01-06:00, Sun., 01 May. 0.0278 0.0248 0.0262
04:01-05:00, Sun., 01 May. 0.0278 0.0242 0.0263
03:01-04:00, Sun., 01 May. 0.0289 0.0240 0.0262
02:01-03:00, Sun., 01 May. 0.0278 0.0244 0.0260
01:01-02:00, Sun., 01 May. 0.0281 0.0247 0.0263
00:01-01:00, Sun., 01 May. 0.0281 0.0245 0.0261
23:01-24:00, Sat., 30 Apr. 0.0278 0.0242 0.0259
22:01-23:00, Sat., 30 Apr. 0.0280 0.0242 0.0261
21:01-22:00, Sat., 30 Apr. 0.0273 0.0238 0.0259
20:01-21:00, Sat., 30 Apr. 0.0280 0.0245 0.0259
19:01-20:00, Sat., 30 Apr. 0.0285 0.0239 0.0259
18:01-19:00, Sat., 30 Apr. 0.0274 0.0244 0.0258
17:01-18:00, Sat., 30 Apr. 0.0271 0.0235 0.0258
16:01-17:00, Sat., 30 Apr. 0.0283 0.0240 0.0258
15:01-16:00, Sat., 30 Apr. 0.0284 0.0244 0.0259
14:01-15:00, Sat., 30 Apr. 0.0272 0.0243 0.0257
13:01-14:00, Sat., 30 Apr. 0.0276 0.0242 0.0257
12:01-13:00, Sat., 30 Apr. 0.0272 0.0239 0.0259
11:01-12:00, Sat., 30 Apr. 0.0280 0.0242 0.0260
10:01-11:00, Sat., 30 Apr. 0.0287 0.0242 0.0259
09:01-10:00, Sat., 30 Apr. 0.0284 0.0241 0.0260
08:01-09:00, Sat., 30 Apr. 0.0274 0.0239 0.0262
07:01-08:00, Sat., 30 Apr. 0.0284 0.0243 0.0261
06:01-07:00, Sat., 30 Apr. 0.0280 0.0241 0.0261
05:01-06:00, Sat., 30 Apr. 0.0275 0.0244 0.0261
04:01-05:00, Sat., 30 Apr. 0.0283 0.0239 0.0262
03:01-04:00, Sat., 30 Apr. 0.0274 0.0248 0.0262
02:01-03:00, Sat., 30 Apr. 0.0280 0.0245 0.0260
01:01-02:00, Sat., 30 Apr. 0.0280 0.0240 0.0259
00:01-01:00, Sat., 30 Apr. 0.0286 0.0240 0.0260
23:01-24:00, Fri., 29 Apr. 0.0288 0.0238 0.0263
22:01-23:00, Fri., 29 Apr. 0.0309 0.0247 0.0274
21:01-22:00, Fri., 29 Apr. 0.0356 0.0285 0.0319
20:01-21:00, Fri., 29 Apr. 0.0374 0.0328 0.0355
19:01-20:00, Fri., 29 Apr. 0.0457 0.0352 0.0396
18:01-19:00, Fri., 29 Apr. 0.0460 0.0394 0.0428
17:01-18:00, Fri., 29 Apr. 0.0451 0.0361 0.0407
16:01-17:00, Fri., 29 Apr. 0.0432 0.0362 0.0387
15:01-16:00, Fri., 29 Apr. 0.0459 0.0390 0.0425
14:01-15:00, Fri., 29 Apr. 0.0450 0.0358 0.0396
13:01-14:00, Fri., 29 Apr. 0.0401 0.0320 0.0357
12:01-13:00, Fri., 29 Apr. 0.0340 0.0295 0.0321
11:01-12:00, Fri., 29 Apr. 0.0318 0.0255 0.0278
10:01-11:00, Fri., 29 Apr. 0.0289 0.0254 0.0270
09:01-10:00, Fri., 29 Apr. 0.0283 0.0247 0.0270
08:01-09:00, Fri., 29 Apr. 0.0294 0.0250 0.0270
07:01-08:00, Fri., 29 Apr. 0.0292 0.0249 0.0271
06:01-07:00, Fri., 29 Apr. 0.0289 0.0253 0.0270
05:01-06:00, Fri., 29 Apr. 0.0293 0.0257 0.0273
04:01-05:00, Fri., 29 Apr. 0.0290 0.0252 0.0272
03:01-04:00, Fri., 29 Apr. 0.0299 0.0248 0.0273
02:01-03:00, Fri., 29 Apr. 0.0289 0.0243 0.0270
01:01-02:00, Fri., 29 Apr. 0.0291 0.0250 0.0266
00:01-01:00, Fri., 29 Apr. 0.0286 0.0242 0.0265
23:01-24:00, Thu., 28 Apr. 0.0292 0.0241 0.0267
22:01-23:00, Thu., 28 Apr. 0.0285 0.0247 0.0267
21:01-22:00, Thu., 28 Apr. 0.0287 0.0249 0.0264
20:01-21:00, Thu., 28 Apr. 0.0283 0.0241 0.0262
19:01-20:00, Thu., 28 Apr. 0.0286 0.0241 0.0262
18:01-19:00, Thu., 28 Apr. 0.0281 0.0243 0.0262
17:01-18:00, Thu., 28 Apr. 0.0278 0.0247 0.0260
16:01-17:00, Thu., 28 Apr. 0.0281 0.0240 0.0261
15:01-16:00, Thu., 28 Apr. 0.0278 0.0243 0.0262
14:01-15:00, Thu., 28 Apr. 0.0284 0.0240 0.0262
13:01-14:00, Thu., 28 Apr. 0.0288 0.0245 0.0262
12:01-13:00, Thu., 28 Apr. 0.0279 0.0247 0.0263
11:01-12:00, Thu., 28 Apr. 0.0277 0.0248 0.0263
10:01-11:00, Thu., 28 Apr. 0.0279 0.0241 0.0262
09:01-10:00, Thu., 28 Apr. 0.0289 0.0246 0.0264
08:01-09:00, Thu., 28 Apr. 0.0283 0.0249 0.0266
07:01-08:00, Thu., 28 Apr. 0.0283 0.0248 0.0266
06:01-07:00, Thu., 28 Apr. 0.0281 0.0245 0.0264
05:01-06:00, Thu., 28 Apr. 0.0285 0.0249 0.0266
04:01-05:00, Thu., 28 Apr. 0.0287 0.0244 0.0265
03:01-04:00, Thu., 28 Apr. 0.0294 0.0244 0.0266
02:01-03:00, Thu., 28 Apr. 0.0285 0.0249 0.0267
01:01-02:00, Thu., 28 Apr. 0.0291 0.0252 0.0268
00:01-01:00, Thu., 28 Apr. 0.0283 0.0252 0.0268
23:01-24:00, Wed., 27 Apr. 0.0283 0.0248 0.0265
22:01-23:00, Wed., 27 Apr. 0.0285 0.0249 0.0264
21:01-22:00, Wed., 27 Apr. 0.0294 0.0241 0.0266
20:01-21:00, Wed., 27 Apr. 0.0287 0.0246 0.0266
19:01-20:00, Wed., 27 Apr. 0.0287 0.0252 0.0268
18:01-19:00, Wed., 27 Apr. 0.0283 0.0247 0.0264
17:01-18:00, Wed., 27 Apr. 0.0288 0.0244 0.0266
16:01-17:00, Wed., 27 Apr. 0.0288 0.0244 0.0264
15:01-16:00, Wed., 27 Apr. 0.0279 0.0240 0.0263
14:01-15:00, Wed., 27 Apr. 0.0275 0.0242 0.0261
13:01-14:00, Wed., 27 Apr. 0.0281 0.0241 0.0260
12:01-13:00, Wed., 27 Apr. 0.0278 0.0244 0.0262
11:01-12:00, Wed., 27 Apr. 0.0293 0.0245 0.0263
10:01-11:00, Wed., 27 Apr. 0.0286 0.0243 0.0267
09:01-10:00, Wed., 27 Apr. 0.0305 0.0261 0.0283
08:01-09:00, Wed., 27 Apr. 0.0329 0.0264 0.0290
07:01-08:00, Wed., 27 Apr. 0.0352 0.0299 0.0325
06:01-07:00, Wed., 27 Apr. 0.0323 0.0244 0.0270
05:01-06:00, Wed., 27 Apr. 0.0278 0.0243 0.0261
04:01-05:00, Wed., 27 Apr. 0.0281 0.0244 0.0261
03:01-04:00, Wed., 27 Apr. 0.0286 0.0243 0.0264
02:01-03:00, Wed., 27 Apr. 0.0289 0.0252 0.0269
01:01-02:00, Wed., 27 Apr. 0.0272 0.0243 0.0258
00:01-01:00, Wed., 27 Apr. 0.0281 0.0237 0.0253
23:01-24:00, Tue., 26 Apr. 0.0284 0.0235 0.0255
22:01-23:00, Tue., 26 Apr. 0.0278 0.0236 0.0257
21:01-22:00, Tue., 26 Apr. 0.0276 0.0237 0.0257
20:01-21:00, Tue., 26 Apr. 0.0271 0.0240 0.0256
19:01-20:00, Tue., 26 Apr. 0.0280 0.0234 0.0256
18:01-19:00, Tue., 26 Apr. 0.0280 0.0243 0.0262
17:01-18:00, Tue., 26 Apr. 0.0294 0.0248 0.0271
16:01-17:00, Tue., 26 Apr. 0.0296 0.0254 0.0274
15:01-16:00, Tue., 26 Apr. 0.0287 0.0237 0.0262
14:01-15:00, Tue., 26 Apr. 0.0281 0.0246 0.0265
13:01-14:00, Tue., 26 Apr. 0.0289 0.0244 0.0268
12:01-13:00, Tue., 26 Apr. 0.0284 0.0250 0.0268
11:01-12:00, Tue., 26 Apr. 0.0291 0.0251 0.0267
10:01-11:00, Tue., 26 Apr. 0.0289 0.0249 0.0266
09:01-10:00, Tue., 26 Apr. 0.0283 0.0243 0.0267
08:01-09:00, Tue., 26 Apr. 0.0297 0.0245 0.0271
07:01-08:00, Tue., 26 Apr. 0.0289 0.0254 0.0273
06:01-07:00, Tue., 26 Apr. 0.0306 0.0260 0.0278
05:01-06:00, Tue., 26 Apr. 0.0306 0.0249 0.0272
04:01-05:00, Tue., 26 Apr. 0.0297 0.0242 0.0267
03:01-04:00, Tue., 26 Apr. 0.0292 0.0246 0.0267
02:01-03:00, Tue., 26 Apr. 0.0289 0.0245 0.0265
01:01-02:00, Tue., 26 Apr. 0.0296 0.0248 0.0267
00:01-01:00, Tue., 26 Apr. 0.0288 0.0248 0.0265
23:01-24:00, Mon., 25 Apr. 0.0290 0.0244 0.0265
22:01-23:00, Mon., 25 Apr. 0.0295 0.0248 0.0265
21:01-22:00, Mon., 25 Apr. 0.0280 0.0250 0.0266
20:01-21:00, Mon., 25 Apr. 0.0291 0.0248 0.0263
19:01-20:00, Mon., 25 Apr. 0.0283 0.0241 0.0263
18:01-19:00, Mon., 25 Apr. 0.0282 0.0248 0.0265
17:01-18:00, Mon., 25 Apr. 0.0288 0.0240 0.0265
16:01-17:00, Mon., 25 Apr. 0.0283 0.0244 0.0264
15:01-16:00, Mon., 25 Apr. 0.0280 0.0244 0.0263
14:01-15:00, Mon., 25 Apr. 0.0282 0.0248 0.0265
13:01-14:00, Mon., 25 Apr. 0.0282 0.0250 0.0264
12:01-13:00, Mon., 25 Apr. 0.0285 0.0237 0.0262
11:01-12:00, Mon., 25 Apr. 0.0279 0.0247 0.0263
10:01-11:00, Mon., 25 Apr. 0.0280 0.0248 0.0265
09:01-10:00, Mon., 25 Apr. 0.0289 0.0247 0.0266
08:01-09:00, Mon., 25 Apr. 0.0286 0.0255 0.0273
07:01-08:00, Mon., 25 Apr. 0.0291 0.0249 0.0273
06:01-07:00, Mon., 25 Apr. 0.0289 0.0245 0.0269
05:01-06:00, Mon., 25 Apr. 0.0285 0.0257 0.0269
04:01-05:00, Mon., 25 Apr. 0.0289 0.0255 0.0271
03:01-04:00, Mon., 25 Apr. 0.0289 0.0256 0.0271
02:01-03:00, Mon., 25 Apr. 0.0287 0.0252 0.0270
01:01-02:00, Mon., 25 Apr. 0.0288 0.0251 0.0268
00:01-01:00, Mon., 25 Apr. 0.0292 0.0249 0.0265