Measurement results by the hour (Chofu) 21 Aug., 2023 - 27 Aug., 2023

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., 27 Aug. 0.0297 0.0263 0.0278
22:01-23:00, Sun., 27 Aug. 0.0297 0.0259 0.0280
21:01-22:00, Sun., 27 Aug. 0.0298 0.0249 0.0277
20:01-21:00, Sun., 27 Aug. 0.0298 0.0261 0.0279
19:01-20:00, Sun., 27 Aug. 0.0301 0.0262 0.0281
18:01-19:00, Sun., 27 Aug. 0.0304 0.0263 0.0280
17:01-18:00, Sun., 27 Aug. 0.0305 0.0262 0.0282
16:01-17:00, Sun., 27 Aug. 0.0305 0.0264 0.0279
15:01-16:00, Sun., 27 Aug. 0.0308 0.0261 0.0280
14:01-15:00, Sun., 27 Aug. 0.0306 0.0263 0.0281
13:01-14:00, Sun., 27 Aug. 0.0304 0.0264 0.0281
12:01-13:00, Sun., 27 Aug. 0.0304 0.0264 0.0280
11:01-12:00, Sun., 27 Aug. 0.0315 0.0263 0.0282
10:01-11:00, Sun., 27 Aug. 0.0303 0.0264 0.0285
09:01-10:00, Sun., 27 Aug. 0.0305 0.0262 0.0282
08:01-09:00, Sun., 27 Aug. 0.0308 0.0266 0.0286
07:01-08:00, Sun., 27 Aug. 0.0309 0.0270 0.0286
06:01-07:00, Sun., 27 Aug. 0.0307 0.0264 0.0287
05:01-06:00, Sun., 27 Aug. 0.0304 0.0256 0.0286
04:01-05:00, Sun., 27 Aug. 0.0305 0.0264 0.0285
03:01-04:00, Sun., 27 Aug. 0.0305 0.0264 0.0282
02:01-03:00, Sun., 27 Aug. 0.0313 0.0263 0.0282
01:01-02:00, Sun., 27 Aug. 0.0303 0.0260 0.0280
00:01-01:00, Sun., 27 Aug. 0.0301 0.0266 0.0281
23:01-24:00, Sat., 26 Aug. 0.0299 0.0264 0.0280
22:01-23:00, Sat., 26 Aug. 0.0310 0.0259 0.0278
21:01-22:00, Sat., 26 Aug. 0.0298 0.0256 0.0277
20:01-21:00, Sat., 26 Aug. 0.0301 0.0259 0.0278
19:01-20:00, Sat., 26 Aug. 0.0300 0.0259 0.0278
18:01-19:00, Sat., 26 Aug. 0.0299 0.0256 0.0280
17:01-18:00, Sat., 26 Aug. 0.0293 0.0255 0.0277
16:01-17:00, Sat., 26 Aug. 0.0298 0.0257 0.0277
15:01-16:00, Sat., 26 Aug. 0.0297 0.0261 0.0277
14:01-15:00, Sat., 26 Aug. 0.0301 0.0255 0.0279
13:01-14:00, Sat., 26 Aug. 0.0297 0.0254 0.0277
12:01-13:00, Sat., 26 Aug. 0.0304 0.0262 0.0280
11:01-12:00, Sat., 26 Aug. 0.0294 0.0252 0.0277
10:01-11:00, Sat., 26 Aug. 0.0293 0.0259 0.0277
09:01-10:00, Sat., 26 Aug. 0.0307 0.0258 0.0278
08:01-09:00, Sat., 26 Aug. 0.0298 0.0252 0.0274
07:01-08:00, Sat., 26 Aug. 0.0296 0.0261 0.0277
06:01-07:00, Sat., 26 Aug. 0.0299 0.0255 0.0279
05:01-06:00, Sat., 26 Aug. 0.0300 0.0256 0.0278
04:01-05:00, Sat., 26 Aug. 0.0294 0.0255 0.0276
03:01-04:00, Sat., 26 Aug. 0.0301 0.0255 0.0275
02:01-03:00, Sat., 26 Aug. 0.0303 0.0259 0.0279
01:01-02:00, Sat., 26 Aug. 0.0296 0.0259 0.0275
00:01-01:00, Sat., 26 Aug. 0.0291 0.0255 0.0275
23:01-24:00, Fri., 25 Aug. 0.0298 0.0259 0.0276
22:01-23:00, Fri., 25 Aug. 0.0293 0.0258 0.0277
21:01-22:00, Fri., 25 Aug. 0.0296 0.0252 0.0275
20:01-21:00, Fri., 25 Aug. 0.0296 0.0257 0.0275
19:01-20:00, Fri., 25 Aug. 0.0299 0.0256 0.0276
18:01-19:00, Fri., 25 Aug. 0.0299 0.0256 0.0275
17:01-18:00, Fri., 25 Aug. 0.0297 0.0260 0.0278
16:01-17:00, Fri., 25 Aug. 0.0298 0.0258 0.0277
15:01-16:00, Fri., 25 Aug. 0.0308 0.0257 0.0277
14:01-15:00, Fri., 25 Aug. 0.0298 0.0246 0.0277
13:01-14:00, Fri., 25 Aug. 0.0305 0.0251 0.0274
12:01-13:00, Fri., 25 Aug. 0.0294 0.0254 0.0276
11:01-12:00, Fri., 25 Aug. 0.0296 0.0254 0.0276
10:01-11:00, Fri., 25 Aug. 0.0295 0.0251 0.0275
09:01-10:00, Fri., 25 Aug. 0.0294 0.0250 0.0277
08:01-09:00, Fri., 25 Aug. 0.0302 0.0257 0.0274
07:01-08:00, Fri., 25 Aug. 0.0297 0.0253 0.0275
06:01-07:00, Fri., 25 Aug. 0.0298 0.0261 0.0278
05:01-06:00, Fri., 25 Aug. 0.0297 0.0254 0.0276
04:01-05:00, Fri., 25 Aug. 0.0293 0.0262 0.0276
03:01-04:00, Fri., 25 Aug. 0.0298 0.0252 0.0274
02:01-03:00, Fri., 25 Aug. 0.0298 0.0251 0.0271
01:01-02:00, Fri., 25 Aug. 0.0308 0.0245 0.0274
00:01-01:00, Fri., 25 Aug. 0.0293 0.0256 0.0275
23:01-24:00, Thu., 24 Aug. 0.0294 0.0246 0.0273
22:01-23:00, Thu., 24 Aug. 0.0290 0.0250 0.0271
21:01-22:00, Thu., 24 Aug. 0.0296 0.0255 0.0274
20:01-21:00, Thu., 24 Aug. 0.0294 0.0255 0.0274
19:01-20:00, Thu., 24 Aug. 0.0295 0.0249 0.0275
18:01-19:00, Thu., 24 Aug. 0.0300 0.0252 0.0271
17:01-18:00, Thu., 24 Aug. 0.0298 0.0249 0.0274
16:01-17:00, Thu., 24 Aug. 0.0294 0.0253 0.0273
15:01-16:00, Thu., 24 Aug. 0.0297 0.0255 0.0276
14:01-15:00, Thu., 24 Aug. 0.0297 0.0250 0.0271
13:01-14:00, Thu., 24 Aug. 0.0287 0.0243 0.0272
12:01-13:00, Thu., 24 Aug. 0.0297 0.0249 0.0272
11:01-12:00, Thu., 24 Aug. 0.0294 0.0252 0.0272
10:01-11:00, Thu., 24 Aug. 0.0299 0.0250 0.0272
09:01-10:00, Thu., 24 Aug. 0.0289 0.0249 0.0271
08:01-09:00, Thu., 24 Aug. 0.0287 0.0249 0.0271
07:01-08:00, Thu., 24 Aug. 0.0296 0.0249 0.0271
06:01-07:00, Thu., 24 Aug. 0.0293 0.0252 0.0271
05:01-06:00, Thu., 24 Aug. 0.0294 0.0252 0.0271
04:01-05:00, Thu., 24 Aug. 0.0296 0.0247 0.0272
03:01-04:00, Thu., 24 Aug. 0.0289 0.0253 0.0270
02:01-03:00, Thu., 24 Aug. 0.0295 0.0244 0.0268
01:01-02:00, Thu., 24 Aug. 0.0291 0.0260 0.0272
00:01-01:00, Thu., 24 Aug. 0.0288 0.0233 0.0268
23:01-24:00, Wed., 23 Aug. 0.0295 0.0254 0.0272
22:01-23:00, Wed., 23 Aug. 0.0297 0.0249 0.0272
21:01-22:00, Wed., 23 Aug. 0.0296 0.0248 0.0270
20:01-21:00, Wed., 23 Aug. 0.0294 0.0251 0.0272
19:01-20:00, Wed., 23 Aug. 0.0287 0.0254 0.0272
18:01-19:00, Wed., 23 Aug. 0.0295 0.0245 0.0270
17:01-18:00, Wed., 23 Aug. 0.0291 0.0243 0.0269
16:01-17:00, Wed., 23 Aug. 0.0295 0.0252 0.0271
15:01-16:00, Wed., 23 Aug. 0.0291 0.0253 0.0271
14:01-15:00, Wed., 23 Aug. 0.0293 0.0243 0.0271
13:01-14:00, Wed., 23 Aug. 0.0294 0.0247 0.0270
12:01-13:00, Wed., 23 Aug. 0.0288 0.0248 0.0268
11:01-12:00, Wed., 23 Aug. 0.0286 0.0240 0.0268
10:01-11:00, Wed., 23 Aug. 0.0287 0.0252 0.0270
09:01-10:00, Wed., 23 Aug. 0.0298 0.0254 0.0275
08:01-09:00, Wed., 23 Aug. 0.0290 0.0248 0.0273
07:01-08:00, Wed., 23 Aug. 0.0291 0.0255 0.0272
06:01-07:00, Wed., 23 Aug. 0.0294 0.0251 0.0271
05:01-06:00, Wed., 23 Aug. 0.0293 0.0253 0.0271
04:01-05:00, Wed., 23 Aug. 0.0301 0.0253 0.0274
03:01-04:00, Wed., 23 Aug. 0.0305 0.0261 0.0280
02:01-03:00, Wed., 23 Aug. 0.0320 0.0269 0.0289
01:01-02:00, Wed., 23 Aug. 0.0312 0.0261 0.0282
00:01-01:00, Wed., 23 Aug. 0.0290 0.0253 0.0271
23:01-24:00, Tue., 22 Aug. 0.0293 0.0249 0.0270
22:01-23:00, Tue., 22 Aug. 0.0289 0.0250 0.0270
21:01-22:00, Tue., 22 Aug. 0.0305 0.0246 0.0271
20:01-21:00, Tue., 22 Aug. 0.0292 0.0252 0.0271
19:01-20:00, Tue., 22 Aug. 0.0290 0.0253 0.0269
18:01-19:00, Tue., 22 Aug. 0.0298 0.0246 0.0273
17:01-18:00, Tue., 22 Aug. 0.0301 0.0263 0.0283
16:01-17:00, Tue., 22 Aug. 0.0301 0.0257 0.0278
15:01-16:00, Tue., 22 Aug. 0.0295 0.0257 0.0277
14:01-15:00, Tue., 22 Aug. 0.0294 0.0252 0.0278
13:01-14:00, Tue., 22 Aug. 0.0302 0.0258 0.0278
12:01-13:00, Tue., 22 Aug. 0.0308 0.0261 0.0281
11:01-12:00, Tue., 22 Aug. 0.0302 0.0265 0.0282
10:01-11:00, Tue., 22 Aug. 0.0301 0.0262 0.0280
09:01-10:00, Tue., 22 Aug. 0.0296 0.0247 0.0277
08:01-09:00, Tue., 22 Aug. 0.0300 0.0249 0.0277
07:01-08:00, Tue., 22 Aug. 0.0299 0.0256 0.0277
06:01-07:00, Tue., 22 Aug. 0.0293 0.0251 0.0279
05:01-06:00, Tue., 22 Aug. 0.0303 0.0251 0.0277
04:01-05:00, Tue., 22 Aug. 0.0300 0.0260 0.0281
03:01-04:00, Tue., 22 Aug. 0.0302 0.0260 0.0281
02:01-03:00, Tue., 22 Aug. 0.0314 0.0267 0.0284
01:01-02:00, Tue., 22 Aug. 0.0311 0.0268 0.0284
00:01-01:00, Tue., 22 Aug. 0.0305 0.0259 0.0282
23:01-24:00, Mon., 21 Aug. 0.0304 0.0259 0.0281
22:01-23:00, Mon., 21 Aug. 0.0304 0.0264 0.0281
21:01-22:00, Mon., 21 Aug. 0.0300 0.0265 0.0281
20:01-21:00, Mon., 21 Aug. 0.0303 0.0266 0.0283
19:01-20:00, Mon., 21 Aug. 0.0304 0.0263 0.0281
18:01-19:00, Mon., 21 Aug. 0.0298 0.0254 0.0280
17:01-18:00, Mon., 21 Aug. 0.0311 0.0264 0.0281
16:01-17:00, Mon., 21 Aug. 0.0304 0.0259 0.0282
15:01-16:00, Mon., 21 Aug. 0.0304 0.0266 0.0281
14:01-15:00, Mon., 21 Aug. 0.0307 0.0259 0.0281
13:01-14:00, Mon., 21 Aug. 0.0308 0.0251 0.0284
12:01-13:00, Mon., 21 Aug. 0.0298 0.0261 0.0282
11:01-12:00, Mon., 21 Aug. 0.0298 0.0258 0.0281
10:01-11:00, Mon., 21 Aug. 0.0298 0.0262 0.0281
09:01-10:00, Mon., 21 Aug. 0.0306 0.0258 0.0281
08:01-09:00, Mon., 21 Aug. 0.0300 0.0265 0.0285
07:01-08:00, Mon., 21 Aug. 0.0309 0.0263 0.0288
06:01-07:00, Mon., 21 Aug. 0.0312 0.0266 0.0292
05:01-06:00, Mon., 21 Aug. 0.0318 0.0267 0.0289
04:01-05:00, Mon., 21 Aug. 0.0318 0.0273 0.0289
03:01-04:00, Mon., 21 Aug. 0.0310 0.0266 0.0287
02:01-03:00, Mon., 21 Aug. 0.0300 0.0256 0.0281
01:01-02:00, Mon., 21 Aug. 0.0301 0.0256 0.0278
00:01-01:00, Mon., 21 Aug. 0.0293 0.0254 0.0277