Measurement results by the hour (Chofu) 12 Jul., 2021 - 18 Jul., 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., 18 Jul. 0.0289 0.0252 0.0265
22:01-23:00, Sun., 18 Jul. 0.0291 0.0249 0.0269
21:01-22:00, Sun., 18 Jul. 0.0286 0.0248 0.0267
20:01-21:00, Sun., 18 Jul. 0.0282 0.0251 0.0265
19:01-20:00, Sun., 18 Jul. 0.0278 0.0249 0.0266
18:01-19:00, Sun., 18 Jul. 0.0285 0.0248 0.0265
17:01-18:00, Sun., 18 Jul. 0.0290 0.0246 0.0266
16:01-17:00, Sun., 18 Jul. 0.0281 0.0248 0.0262
15:01-16:00, Sun., 18 Jul. 0.0281 0.0235 0.0264
14:01-15:00, Sun., 18 Jul. 0.0285 0.0246 0.0266
13:01-14:00, Sun., 18 Jul. 0.0290 0.0244 0.0265
12:01-13:00, Sun., 18 Jul. 0.0287 0.0246 0.0265
11:01-12:00, Sun., 18 Jul. 0.0290 0.0245 0.0263
10:01-11:00, Sun., 18 Jul. 0.0281 0.0241 0.0264
09:01-10:00, Sun., 18 Jul. 0.0286 0.0247 0.0265
08:01-09:00, Sun., 18 Jul. 0.0295 0.0256 0.0275
07:01-08:00, Sun., 18 Jul. 0.0312 0.0258 0.0278
06:01-07:00, Sun., 18 Jul. 0.0301 0.0267 0.0284
05:01-06:00, Sun., 18 Jul. 0.0313 0.0259 0.0283
04:01-05:00, Sun., 18 Jul. 0.0284 0.0251 0.0268
03:01-04:00, Sun., 18 Jul. 0.0283 0.0246 0.0265
02:01-03:00, Sun., 18 Jul. 0.0294 0.0249 0.0264
01:01-02:00, Sun., 18 Jul. 0.0284 0.0243 0.0265
00:01-01:00, Sun., 18 Jul. 0.0279 0.0234 0.0261
23:01-24:00, Sat., 17 Jul. 0.0278 0.0246 0.0262
22:01-23:00, Sat., 17 Jul. 0.0289 0.0245 0.0264
21:01-22:00, Sat., 17 Jul. 0.0288 0.0245 0.0262
20:01-21:00, Sat., 17 Jul. 0.0281 0.0243 0.0263
19:01-20:00, Sat., 17 Jul. 0.0284 0.0237 0.0264
18:01-19:00, Sat., 17 Jul. 0.0281 0.0240 0.0262
17:01-18:00, Sat., 17 Jul. 0.0282 0.0240 0.0265
16:01-17:00, Sat., 17 Jul. 0.0294 0.0238 0.0265
15:01-16:00, Sat., 17 Jul. 0.0297 0.0242 0.0261
14:01-15:00, Sat., 17 Jul. 0.0282 0.0242 0.0264
13:01-14:00, Sat., 17 Jul. 0.0287 0.0242 0.0264
12:01-13:00, Sat., 17 Jul. 0.0277 0.0241 0.0261
11:01-12:00, Sat., 17 Jul. 0.0285 0.0239 0.0262
10:01-11:00, Sat., 17 Jul. 0.0287 0.0243 0.0266
09:01-10:00, Sat., 17 Jul. 0.0288 0.0247 0.0267
08:01-09:00, Sat., 17 Jul. 0.0287 0.0254 0.0272
07:01-08:00, Sat., 17 Jul. 0.0303 0.0263 0.0278
06:01-07:00, Sat., 17 Jul. 0.0302 0.0271 0.0287
05:01-06:00, Sat., 17 Jul. 0.0299 0.0254 0.0279
04:01-05:00, Sat., 17 Jul. 0.0287 0.0246 0.0269
03:01-04:00, Sat., 17 Jul. 0.0281 0.0236 0.0263
02:01-03:00, Sat., 17 Jul. 0.0277 0.0242 0.0260
01:01-02:00, Sat., 17 Jul. 0.0281 0.0236 0.0264
00:01-01:00, Sat., 17 Jul. 0.0291 0.0245 0.0263
23:01-24:00, Fri., 16 Jul. 0.0281 0.0242 0.0260
22:01-23:00, Fri., 16 Jul. 0.0280 0.0237 0.0261
21:01-22:00, Fri., 16 Jul. 0.0283 0.0239 0.0261
20:01-21:00, Fri., 16 Jul. 0.0281 0.0245 0.0260
19:01-20:00, Fri., 16 Jul. 0.0279 0.0235 0.0260
18:01-19:00, Fri., 16 Jul. 0.0284 0.0243 0.0261
17:01-18:00, Fri., 16 Jul. 0.0278 0.0243 0.0260
16:01-17:00, Fri., 16 Jul. 0.0282 0.0243 0.0262
15:01-16:00, Fri., 16 Jul. 0.0277 0.0244 0.0261
14:01-15:00, Fri., 16 Jul. 0.0284 0.0237 0.0260
13:01-14:00, Fri., 16 Jul. 0.0280 0.0239 0.0261
12:01-13:00, Fri., 16 Jul. 0.0283 0.0238 0.0258
11:01-12:00, Fri., 16 Jul. 0.0275 0.0241 0.0258
10:01-11:00, Fri., 16 Jul. 0.0291 0.0240 0.0265
09:01-10:00, Fri., 16 Jul. 0.0286 0.0241 0.0265
08:01-09:00, Fri., 16 Jul. 0.0288 0.0247 0.0267
07:01-08:00, Fri., 16 Jul. 0.0288 0.0248 0.0271
06:01-07:00, Fri., 16 Jul. 0.0301 0.0262 0.0280
05:01-06:00, Fri., 16 Jul. 0.0300 0.0262 0.0282
04:01-05:00, Fri., 16 Jul. 0.0299 0.0246 0.0274
03:01-04:00, Fri., 16 Jul. 0.0281 0.0246 0.0264
02:01-03:00, Fri., 16 Jul. 0.0276 0.0241 0.0263
01:01-02:00, Fri., 16 Jul. 0.0278 0.0242 0.0261
00:01-01:00, Fri., 16 Jul. 0.0285 0.0241 0.0258
23:01-24:00, Thu., 15 Jul. 0.0282 0.0243 0.0260
22:01-23:00, Thu., 15 Jul. 0.0272 0.0241 0.0260
21:01-22:00, Thu., 15 Jul. 0.0279 0.0240 0.0257
20:01-21:00, Thu., 15 Jul. 0.0272 0.0240 0.0256
19:01-20:00, Thu., 15 Jul. 0.0278 0.0241 0.0257
18:01-19:00, Thu., 15 Jul. 0.0270 0.0241 0.0254
17:01-18:00, Thu., 15 Jul. 0.0278 0.0236 0.0256
16:01-17:00, Thu., 15 Jul. 0.0276 0.0235 0.0256
15:01-16:00, Thu., 15 Jul. 0.0274 0.0236 0.0257
14:01-15:00, Thu., 15 Jul. 0.0287 0.0239 0.0262
13:01-14:00, Thu., 15 Jul. 0.0295 0.0252 0.0269
12:01-13:00, Thu., 15 Jul. 0.0329 0.0263 0.0294
11:01-12:00, Thu., 15 Jul. 0.0339 0.0245 0.0294
10:01-11:00, Thu., 15 Jul. 0.0281 0.0242 0.0260
09:01-10:00, Thu., 15 Jul. 0.0288 0.0241 0.0258
08:01-09:00, Thu., 15 Jul. 0.0274 0.0242 0.0261
07:01-08:00, Thu., 15 Jul. 0.0283 0.0241 0.0261
06:01-07:00, Thu., 15 Jul. 0.0283 0.0246 0.0266
05:01-06:00, Thu., 15 Jul. 0.0295 0.0261 0.0279
04:01-05:00, Thu., 15 Jul. 0.0313 0.0248 0.0281
03:01-04:00, Thu., 15 Jul. 0.0280 0.0249 0.0264
02:01-03:00, Thu., 15 Jul. 0.0313 0.0262 0.0286
01:01-02:00, Thu., 15 Jul. 0.0397 0.0284 0.0344
00:01-01:00, Thu., 15 Jul. 0.0406 0.0265 0.0338
23:01-24:00, Wed., 14 Jul. 0.0285 0.0242 0.0267
22:01-23:00, Wed., 14 Jul. 0.0296 0.0254 0.0274
21:01-22:00, Wed., 14 Jul. 0.0293 0.0253 0.0272
20:01-21:00, Wed., 14 Jul. 0.0288 0.0244 0.0265
19:01-20:00, Wed., 14 Jul. 0.0291 0.0250 0.0268
18:01-19:00, Wed., 14 Jul. 0.0299 0.0249 0.0267
17:01-18:00, Wed., 14 Jul. 0.0282 0.0247 0.0268
16:01-17:00, Wed., 14 Jul. 0.0285 0.0241 0.0266
15:01-16:00, Wed., 14 Jul. 0.0289 0.0256 0.0275
14:01-15:00, Wed., 14 Jul. 0.0308 0.0268 0.0287
13:01-14:00, Wed., 14 Jul. 0.0287 0.0252 0.0269
12:01-13:00, Wed., 14 Jul. 0.0287 0.0251 0.0269
11:01-12:00, Wed., 14 Jul. 0.0283 0.0247 0.0267
10:01-11:00, Wed., 14 Jul. 0.0286 0.0249 0.0268
09:01-10:00, Wed., 14 Jul. 0.0290 0.0252 0.0266
08:01-09:00, Wed., 14 Jul. 0.0282 0.0246 0.0267
07:01-08:00, Wed., 14 Jul. 0.0278 0.0249 0.0265
06:01-07:00, Wed., 14 Jul. 0.0285 0.0245 0.0264
05:01-06:00, Wed., 14 Jul. 0.0282 0.0248 0.0266
04:01-05:00, Wed., 14 Jul. 0.0282 0.0249 0.0266
03:01-04:00, Wed., 14 Jul. 0.0285 0.0243 0.0266
02:01-03:00, Wed., 14 Jul. 0.0291 0.0239 0.0265
01:01-02:00, Wed., 14 Jul. 0.0282 0.0252 0.0266
00:01-01:00, Wed., 14 Jul. 0.0282 0.0246 0.0265
23:01-24:00, Tue., 13 Jul. 0.0284 0.0254 0.0268
22:01-23:00, Tue., 13 Jul. 0.0288 0.0248 0.0266
21:01-22:00, Tue., 13 Jul. 0.0283 0.0245 0.0265
20:01-21:00, Tue., 13 Jul. 0.0291 0.0250 0.0268
19:01-20:00, Tue., 13 Jul. 0.0294 0.0257 0.0273
18:01-19:00, Tue., 13 Jul. 0.0299 0.0255 0.0276
17:01-18:00, Tue., 13 Jul. 0.0290 0.0248 0.0269
16:01-17:00, Tue., 13 Jul. 0.0299 0.0258 0.0271
15:01-16:00, Tue., 13 Jul. 0.0289 0.0250 0.0272
14:01-15:00, Tue., 13 Jul. 0.0292 0.0247 0.0270
13:01-14:00, Tue., 13 Jul. 0.0289 0.0254 0.0271
12:01-13:00, Tue., 13 Jul. 0.0287 0.0248 0.0269
11:01-12:00, Tue., 13 Jul. 0.0292 0.0253 0.0277
10:01-11:00, Tue., 13 Jul. 0.0296 0.0255 0.0279
09:01-10:00, Tue., 13 Jul. 0.0309 0.0274 0.0290
08:01-09:00, Tue., 13 Jul. 0.0299 0.0263 0.0278
07:01-08:00, Tue., 13 Jul. 0.0290 0.0255 0.0274
06:01-07:00, Tue., 13 Jul. 0.0299 0.0259 0.0275
05:01-06:00, Tue., 13 Jul. 0.0291 0.0254 0.0273
04:01-05:00, Tue., 13 Jul. 0.0295 0.0258 0.0274
03:01-04:00, Tue., 13 Jul. 0.0297 0.0251 0.0274
02:01-03:00, Tue., 13 Jul. 0.0290 0.0255 0.0274
01:01-02:00, Tue., 13 Jul. 0.0289 0.0256 0.0269
00:01-01:00, Tue., 13 Jul. 0.0289 0.0246 0.0270
23:01-24:00, Mon., 12 Jul. 0.0285 0.0252 0.0271
22:01-23:00, Mon., 12 Jul. 0.0284 0.0247 0.0267
21:01-22:00, Mon., 12 Jul. 0.0295 0.0253 0.0271
20:01-21:00, Mon., 12 Jul. 0.0300 0.0264 0.0278
19:01-20:00, Mon., 12 Jul. 0.0301 0.0265 0.0286
18:01-19:00, Mon., 12 Jul. 0.0333 0.0270 0.0302
17:01-18:00, Mon., 12 Jul. 0.0423 0.0323 0.0365
16:01-17:00, Mon., 12 Jul. 0.0457 0.0345 0.0398
15:01-16:00, Mon., 12 Jul. 0.0438 0.0293 0.0373
14:01-15:00, Mon., 12 Jul. 0.0299 0.0252 0.0272
13:01-14:00, Mon., 12 Jul. 0.0290 0.0250 0.0267
12:01-13:00, Mon., 12 Jul. 0.0284 0.0253 0.0268
11:01-12:00, Mon., 12 Jul. 0.0292 0.0252 0.0269
10:01-11:00, Mon., 12 Jul. 0.0295 0.0246 0.0273
09:01-10:00, Mon., 12 Jul. 0.0295 0.0248 0.0268
08:01-09:00, Mon., 12 Jul. 0.0294 0.0252 0.0271
07:01-08:00, Mon., 12 Jul. 0.0288 0.0247 0.0272
06:01-07:00, Mon., 12 Jul. 0.0293 0.0252 0.0273
05:01-06:00, Mon., 12 Jul. 0.0300 0.0258 0.0275
04:01-05:00, Mon., 12 Jul. 0.0291 0.0253 0.0274
03:01-04:00, Mon., 12 Jul. 0.0294 0.0252 0.0274
02:01-03:00, Mon., 12 Jul. 0.0296 0.0251 0.0270
01:01-02:00, Mon., 12 Jul. 0.0281 0.0245 0.0264
00:01-01:00, Mon., 12 Jul. 0.0284 0.0243 0.0267