Measurement results by the hour (Chofu) 27 Jul., 2020 - 2 Aug., 2020

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., 02 Aug. 0.0281 0.0252 0.0263
22:01-23:00, Sun., 02 Aug. 0.0287 0.0245 0.0263
21:01-22:00, Sun., 02 Aug. 0.0287 0.0246 0.0263
20:01-21:00, Sun., 02 Aug. 0.0285 0.0249 0.0262
19:01-20:00, Sun., 02 Aug. 0.0285 0.0248 0.0266
18:01-19:00, Sun., 02 Aug. 0.0282 0.0245 0.0264
17:01-18:00, Sun., 02 Aug. 0.0281 0.0249 0.0265
16:01-17:00, Sun., 02 Aug. 0.0281 0.0248 0.0265
15:01-16:00, Sun., 02 Aug. 0.0286 0.0251 0.0267
14:01-15:00, Sun., 02 Aug. 0.0285 0.0253 0.0267
13:01-14:00, Sun., 02 Aug. 0.0283 0.0250 0.0266
12:01-13:00, Sun., 02 Aug. 0.0287 0.0250 0.0268
11:01-12:00, Sun., 02 Aug. 0.0287 0.0241 0.0264
10:01-11:00, Sun., 02 Aug. 0.0285 0.0239 0.0266
09:01-10:00, Sun., 02 Aug. 0.0285 0.0251 0.0267
08:01-09:00, Sun., 02 Aug. 0.0290 0.0247 0.0266
07:01-08:00, Sun., 02 Aug. 0.0283 0.0246 0.0265
06:01-07:00, Sun., 02 Aug. 0.0282 0.0247 0.0267
05:01-06:00, Sun., 02 Aug. 0.0288 0.0250 0.0265
04:01-05:00, Sun., 02 Aug. 0.0286 0.0242 0.0268
03:01-04:00, Sun., 02 Aug. 0.0289 0.0252 0.0267
02:01-03:00, Sun., 02 Aug. 0.0284 0.0250 0.0266
01:01-02:00, Sun., 02 Aug. 0.0278 0.0241 0.0263
00:01-01:00, Sun., 02 Aug. 0.0284 0.0249 0.0263
23:01-24:00, Sat., 01 Aug. 0.0287 0.0247 0.0263
22:01-23:00, Sat., 01 Aug. 0.0282 0.0239 0.0263
21:01-22:00, Sat., 01 Aug. 0.0284 0.0243 0.0263
20:01-21:00, Sat., 01 Aug. 0.0280 0.0240 0.0262
19:01-20:00, Sat., 01 Aug. 0.0279 0.0244 0.0263
18:01-19:00, Sat., 01 Aug. 0.0282 0.0242 0.0263
17:01-18:00, Sat., 01 Aug. 0.0278 0.0241 0.0262
16:01-17:00, Sat., 01 Aug. 0.0284 0.0246 0.0263
15:01-16:00, Sat., 01 Aug. 0.0286 0.0250 0.0266
14:01-15:00, Sat., 01 Aug. 0.0286 0.0246 0.0268
13:01-14:00, Sat., 01 Aug. 0.0283 0.0245 0.0266
12:01-13:00, Sat., 01 Aug. 0.0284 0.0250 0.0267
11:01-12:00, Sat., 01 Aug. 0.0288 0.0244 0.0265
10:01-11:00, Sat., 01 Aug. 0.0290 0.0246 0.0265
09:01-10:00, Sat., 01 Aug. 0.0284 0.0246 0.0265
08:01-09:00, Sat., 01 Aug. 0.0285 0.0251 0.0265
07:01-08:00, Sat., 01 Aug. 0.0279 0.0249 0.0266
06:01-07:00, Sat., 01 Aug. 0.0298 0.0253 0.0275
05:01-06:00, Sat., 01 Aug. 0.0360 0.0277 0.0317
04:01-05:00, Sat., 01 Aug. 0.0501 0.0330 0.0414
03:01-04:00, Sat., 01 Aug. 0.0487 0.0277 0.0363
02:01-03:00, Sat., 01 Aug. 0.0301 0.0256 0.0267
01:01-02:00, Sat., 01 Aug. 0.0288 0.0244 0.0268
00:01-01:00, Sat., 01 Aug. 0.0280 0.0242 0.0263
23:01-24:00, Fri., 31 Jul. 0.0281 0.0251 0.0267
22:01-23:00, Fri., 31 Jul. 0.0285 0.0247 0.0265
21:01-22:00, Fri., 31 Jul. 0.0283 0.0244 0.0264
20:01-21:00, Fri., 31 Jul. 0.0283 0.0248 0.0266
19:01-20:00, Fri., 31 Jul. 0.0282 0.0250 0.0265
18:01-19:00, Fri., 31 Jul. 0.0288 0.0239 0.0267
17:01-18:00, Fri., 31 Jul. 0.0285 0.0239 0.0263
16:01-17:00, Fri., 31 Jul. 0.0291 0.0245 0.0267
15:01-16:00, Fri., 31 Jul. 0.0290 0.0248 0.0267
14:01-15:00, Fri., 31 Jul. 0.0286 0.0244 0.0267
13:01-14:00, Fri., 31 Jul. 0.0285 0.0239 0.0266
12:01-13:00, Fri., 31 Jul. 0.0283 0.0246 0.0264
11:01-12:00, Fri., 31 Jul. 0.0283 0.0248 0.0264
10:01-11:00, Fri., 31 Jul. 0.0287 0.0245 0.0263
09:01-10:00, Fri., 31 Jul. 0.0282 0.0249 0.0264
08:01-09:00, Fri., 31 Jul. 0.0295 0.0248 0.0270
07:01-08:00, Fri., 31 Jul. 0.0315 0.0260 0.0286
06:01-07:00, Fri., 31 Jul. 0.0322 0.0280 0.0303
05:01-06:00, Fri., 31 Jul. 0.0294 0.0249 0.0270
04:01-05:00, Fri., 31 Jul. 0.0277 0.0240 0.0261
03:01-04:00, Fri., 31 Jul. 0.0281 0.0241 0.0263
02:01-03:00, Fri., 31 Jul. 0.0288 0.0247 0.0262
01:01-02:00, Fri., 31 Jul. 0.0277 0.0243 0.0261
00:01-01:00, Fri., 31 Jul. 0.0276 0.0242 0.0263
23:01-24:00, Thu., 30 Jul. 0.0281 0.0240 0.0262
22:01-23:00, Thu., 30 Jul. 0.0279 0.0250 0.0262
21:01-22:00, Thu., 30 Jul. 0.0281 0.0245 0.0264
20:01-21:00, Thu., 30 Jul. 0.0277 0.0245 0.0261
19:01-20:00, Thu., 30 Jul. 0.0279 0.0247 0.0261
18:01-19:00, Thu., 30 Jul. 0.0288 0.0245 0.0262
17:01-18:00, Thu., 30 Jul. 0.0283 0.0240 0.0264
16:01-17:00, Thu., 30 Jul. 0.0292 0.0237 0.0261
15:01-16:00, Thu., 30 Jul. 0.0282 0.0246 0.0261
14:01-15:00, Thu., 30 Jul. 0.0279 0.0243 0.0262
13:01-14:00, Thu., 30 Jul. 0.0278 0.0240 0.0261
12:01-13:00, Thu., 30 Jul. 0.0277 0.0246 0.0261
11:01-12:00, Thu., 30 Jul. 0.0279 0.0241 0.0260
10:01-11:00, Thu., 30 Jul. 0.0283 0.0234 0.0260
09:01-10:00, Thu., 30 Jul. 0.0278 0.0241 0.0261
08:01-09:00, Thu., 30 Jul. 0.0282 0.0242 0.0262
07:01-08:00, Thu., 30 Jul. 0.0285 0.0245 0.0264
06:01-07:00, Thu., 30 Jul. 0.0287 0.0250 0.0265
05:01-06:00, Thu., 30 Jul. 0.0282 0.0250 0.0263
04:01-05:00, Thu., 30 Jul. 0.0291 0.0248 0.0270
03:01-04:00, Thu., 30 Jul. 0.0322 0.0255 0.0289
02:01-03:00, Thu., 30 Jul. 0.0311 0.0262 0.0281
01:01-02:00, Thu., 30 Jul. 0.0308 0.0252 0.0275
00:01-01:00, Thu., 30 Jul. 0.0284 0.0236 0.0260
23:01-24:00, Wed., 29 Jul. 0.0284 0.0248 0.0263
22:01-23:00, Wed., 29 Jul. 0.0287 0.0239 0.0262
21:01-22:00, Wed., 29 Jul. 0.0276 0.0241 0.0258
20:01-21:00, Wed., 29 Jul. 0.0280 0.0241 0.0258
19:01-20:00, Wed., 29 Jul. 0.0278 0.0246 0.0263
18:01-19:00, Wed., 29 Jul. 0.0278 0.0238 0.0262
17:01-18:00, Wed., 29 Jul. 0.0283 0.0242 0.0260
16:01-17:00, Wed., 29 Jul. 0.0286 0.0249 0.0262
15:01-16:00, Wed., 29 Jul. 0.0288 0.0244 0.0264
14:01-15:00, Wed., 29 Jul. 0.0285 0.0252 0.0268
13:01-14:00, Wed., 29 Jul. 0.0297 0.0256 0.0274
12:01-13:00, Wed., 29 Jul. 0.0299 0.0255 0.0278
11:01-12:00, Wed., 29 Jul. 0.0296 0.0260 0.0278
10:01-11:00, Wed., 29 Jul. 0.0293 0.0254 0.0272
09:01-10:00, Wed., 29 Jul. 0.0298 0.0249 0.0273
08:01-09:00, Wed., 29 Jul. 0.0298 0.0255 0.0280
07:01-08:00, Wed., 29 Jul. 0.0311 0.0282 0.0297
06:01-07:00, Wed., 29 Jul. 0.0324 0.0280 0.0299
05:01-06:00, Wed., 29 Jul. 0.0297 0.0261 0.0282
04:01-05:00, Wed., 29 Jul. 0.0318 0.0268 0.0290
03:01-04:00, Wed., 29 Jul. 0.0298 0.0245 0.0269
02:01-03:00, Wed., 29 Jul. 0.0276 0.0240 0.0259
01:01-02:00, Wed., 29 Jul. 0.0304 0.0255 0.0278
00:01-01:00, Wed., 29 Jul. 0.0296 0.0265 0.0281
23:01-24:00, Tue., 28 Jul. 0.0311 0.0270 0.0289
22:01-23:00, Tue., 28 Jul. 0.0371 0.0291 0.0323
21:01-22:00, Tue., 28 Jul. 0.0423 0.0339 0.0379
20:01-21:00, Tue., 28 Jul. 0.0436 0.0369 0.0402
19:01-20:00, Tue., 28 Jul. 0.0477 0.0376 0.0427
18:01-19:00, Tue., 28 Jul. 0.0426 0.0334 0.0364
17:01-18:00, Tue., 28 Jul. 0.0389 0.0327 0.0358
16:01-17:00, Tue., 28 Jul. 0.0376 0.0319 0.0335
15:01-16:00, Tue., 28 Jul. 0.0347 0.0283 0.0311
14:01-15:00, Tue., 28 Jul. 0.0324 0.0281 0.0302
13:01-14:00, Tue., 28 Jul. 0.0343 0.0282 0.0308
12:01-13:00, Tue., 28 Jul. 0.0364 0.0304 0.0329
11:01-12:00, Tue., 28 Jul. 0.0350 0.0296 0.0326
10:01-11:00, Tue., 28 Jul. 0.0326 0.0266 0.0291
09:01-10:00, Tue., 28 Jul. 0.0290 0.0253 0.0268
08:01-09:00, Tue., 28 Jul. 0.0283 0.0246 0.0266
07:01-08:00, Tue., 28 Jul. 0.0300 0.0259 0.0279
06:01-07:00, Tue., 28 Jul. 0.0310 0.0269 0.0287
05:01-06:00, Tue., 28 Jul. 0.0314 0.0276 0.0293
04:01-05:00, Tue., 28 Jul. 0.0305 0.0264 0.0286
03:01-04:00, Tue., 28 Jul. 0.0291 0.0252 0.0271
02:01-03:00, Tue., 28 Jul. 0.0291 0.0255 0.0270
01:01-02:00, Tue., 28 Jul. 0.0291 0.0253 0.0268
00:01-01:00, Tue., 28 Jul. 0.0293 0.0252 0.0266
23:01-24:00, Mon., 27 Jul. 0.0298 0.0255 0.0277
22:01-23:00, Mon., 27 Jul. 0.0323 0.0269 0.0294
21:01-22:00, Mon., 27 Jul. 0.0346 0.0288 0.0318
20:01-21:00, Mon., 27 Jul. 0.0353 0.0290 0.0325
19:01-20:00, Mon., 27 Jul. 0.0313 0.0244 0.0281
18:01-19:00, Mon., 27 Jul. 0.0286 0.0242 0.0264
17:01-18:00, Mon., 27 Jul. 0.0281 0.0250 0.0264
16:01-17:00, Mon., 27 Jul. 0.0276 0.0239 0.0260
15:01-16:00, Mon., 27 Jul. 0.0276 0.0243 0.0260
14:01-15:00, Mon., 27 Jul. 0.0276 0.0239 0.0259
13:01-14:00, Mon., 27 Jul. 0.0275 0.0241 0.0258
12:01-13:00, Mon., 27 Jul. 0.0277 0.0245 0.0259
11:01-12:00, Mon., 27 Jul. 0.0278 0.0239 0.0258
10:01-11:00, Mon., 27 Jul. 0.0281 0.0238 0.0257
09:01-10:00, Mon., 27 Jul. 0.0281 0.0242 0.0256
08:01-09:00, Mon., 27 Jul. 0.0275 0.0240 0.0256
07:01-08:00, Mon., 27 Jul. 0.0277 0.0247 0.0259
06:01-07:00, Mon., 27 Jul. 0.0279 0.0238 0.0257
05:01-06:00, Mon., 27 Jul. 0.0279 0.0232 0.0257
04:01-05:00, Mon., 27 Jul. 0.0270 0.0240 0.0256
03:01-04:00, Mon., 27 Jul. 0.0274 0.0240 0.0257
02:01-03:00, Mon., 27 Jul. 0.0276 0.0241 0.0256
01:01-02:00, Mon., 27 Jul. 0.0272 0.0241 0.0254
00:01-01:00, Mon., 27 Jul. 0.0289 0.0235 0.0257