Measurement results by the hour (Chofu) 11 Sep., 2023 - 17 Sep., 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., 17 Sep. 0.0298 0.0257 0.0280
22:01-23:00, Sun., 17 Sep. 0.0302 0.0252 0.0278
21:01-22:00, Sun., 17 Sep. 0.0294 0.0256 0.0279
20:01-21:00, Sun., 17 Sep. 0.0314 0.0257 0.0281
19:01-20:00, Sun., 17 Sep. 0.0302 0.0258 0.0281
18:01-19:00, Sun., 17 Sep. 0.0302 0.0263 0.0281
17:01-18:00, Sun., 17 Sep. 0.0304 0.0261 0.0282
16:01-17:00, Sun., 17 Sep. 0.0304 0.0261 0.0282
15:01-16:00, Sun., 17 Sep. 0.0299 0.0256 0.0280
14:01-15:00, Sun., 17 Sep. 0.0298 0.0261 0.0281
13:01-14:00, Sun., 17 Sep. 0.0308 0.0256 0.0281
12:01-13:00, Sun., 17 Sep. 0.0304 0.0251 0.0284
11:01-12:00, Sun., 17 Sep. 0.0306 0.0268 0.0289
10:01-11:00, Sun., 17 Sep. 0.0325 0.0278 0.0296
09:01-10:00, Sun., 17 Sep. 0.0331 0.0276 0.0300
08:01-09:00, Sun., 17 Sep. 0.0322 0.0279 0.0299
07:01-08:00, Sun., 17 Sep. 0.0318 0.0275 0.0295
06:01-07:00, Sun., 17 Sep. 0.0319 0.0266 0.0296
05:01-06:00, Sun., 17 Sep. 0.0316 0.0276 0.0291
04:01-05:00, Sun., 17 Sep. 0.0313 0.0274 0.0291
03:01-04:00, Sun., 17 Sep. 0.0318 0.0262 0.0290
02:01-03:00, Sun., 17 Sep. 0.0310 0.0260 0.0288
01:01-02:00, Sun., 17 Sep. 0.0313 0.0268 0.0290
00:01-01:00, Sun., 17 Sep. 0.0308 0.0269 0.0288
23:01-24:00, Sat., 16 Sep. 0.0304 0.0263 0.0283
22:01-23:00, Sat., 16 Sep. 0.0298 0.0259 0.0281
21:01-22:00, Sat., 16 Sep. 0.0305 0.0256 0.0282
20:01-21:00, Sat., 16 Sep. 0.0298 0.0262 0.0282
19:01-20:00, Sat., 16 Sep. 0.0300 0.0256 0.0280
18:01-19:00, Sat., 16 Sep. 0.0300 0.0265 0.0279
17:01-18:00, Sat., 16 Sep. 0.0301 0.0261 0.0280
16:01-17:00, Sat., 16 Sep. 0.0304 0.0242 0.0279
15:01-16:00, Sat., 16 Sep. 0.0301 0.0265 0.0283
14:01-15:00, Sat., 16 Sep. 0.0308 0.0264 0.0284
13:01-14:00, Sat., 16 Sep. 0.0303 0.0266 0.0285
12:01-13:00, Sat., 16 Sep. 0.0301 0.0263 0.0285
11:01-12:00, Sat., 16 Sep. 0.0307 0.0264 0.0287
10:01-11:00, Sat., 16 Sep. 0.0305 0.0266 0.0284
09:01-10:00, Sat., 16 Sep. 0.0308 0.0264 0.0285
08:01-09:00, Sat., 16 Sep. 0.0314 0.0261 0.0287
07:01-08:00, Sat., 16 Sep. 0.0306 0.0275 0.0289
06:01-07:00, Sat., 16 Sep. 0.0318 0.0264 0.0288
05:01-06:00, Sat., 16 Sep. 0.0318 0.0255 0.0290
04:01-05:00, Sat., 16 Sep. 0.0308 0.0270 0.0287
03:01-04:00, Sat., 16 Sep. 0.0309 0.0265 0.0288
02:01-03:00, Sat., 16 Sep. 0.0311 0.0262 0.0283
01:01-02:00, Sat., 16 Sep. 0.0311 0.0263 0.0283
00:01-01:00, Sat., 16 Sep. 0.0303 0.0263 0.0283
23:01-24:00, Fri., 15 Sep. 0.0316 0.0257 0.0281
22:01-23:00, Fri., 15 Sep. 0.0309 0.0270 0.0286
21:01-22:00, Fri., 15 Sep. 0.0319 0.0268 0.0289
20:01-21:00, Fri., 15 Sep. 0.0354 0.0283 0.0318
19:01-20:00, Fri., 15 Sep. 0.0371 0.0325 0.0349
18:01-19:00, Fri., 15 Sep. 0.0401 0.0333 0.0358
17:01-18:00, Fri., 15 Sep. 0.0346 0.0261 0.0292
16:01-17:00, Fri., 15 Sep. 0.0301 0.0265 0.0285
15:01-16:00, Fri., 15 Sep. 0.0298 0.0264 0.0282
14:01-15:00, Fri., 15 Sep. 0.0304 0.0251 0.0281
13:01-14:00, Fri., 15 Sep. 0.0301 0.0263 0.0284
12:01-13:00, Fri., 15 Sep. 0.0305 0.0253 0.0283
11:01-12:00, Fri., 15 Sep. 0.0307 0.0270 0.0283
10:01-11:00, Fri., 15 Sep. 0.0309 0.0270 0.0284
09:01-10:00, Fri., 15 Sep. 0.0304 0.0256 0.0285
08:01-09:00, Fri., 15 Sep. 0.0315 0.0264 0.0287
07:01-08:00, Fri., 15 Sep. 0.0318 0.0273 0.0292
06:01-07:00, Fri., 15 Sep. 0.0325 0.0282 0.0302
05:01-06:00, Fri., 15 Sep. 0.0329 0.0273 0.0301
04:01-05:00, Fri., 15 Sep. 0.0329 0.0280 0.0301
03:01-04:00, Fri., 15 Sep. 0.0324 0.0283 0.0301
02:01-03:00, Fri., 15 Sep. 0.0317 0.0267 0.0293
01:01-02:00, Fri., 15 Sep. 0.0315 0.0270 0.0293
00:01-01:00, Fri., 15 Sep. 0.0305 0.0266 0.0286
23:01-24:00, Thu., 14 Sep. 0.0303 0.0254 0.0281
22:01-23:00, Thu., 14 Sep. 0.0301 0.0261 0.0279
21:01-22:00, Thu., 14 Sep. 0.0308 0.0252 0.0279
20:01-21:00, Thu., 14 Sep. 0.0316 0.0260 0.0279
19:01-20:00, Thu., 14 Sep. 0.0301 0.0258 0.0281
18:01-19:00, Thu., 14 Sep. 0.0299 0.0259 0.0278
17:01-18:00, Thu., 14 Sep. 0.0308 0.0262 0.0279
16:01-17:00, Thu., 14 Sep. 0.0298 0.0261 0.0281
15:01-16:00, Thu., 14 Sep. 0.0297 0.0260 0.0278
14:01-15:00, Thu., 14 Sep. 0.0300 0.0254 0.0279
13:01-14:00, Thu., 14 Sep. 0.0302 0.0252 0.0280
12:01-13:00, Thu., 14 Sep. 0.0308 0.0251 0.0281
11:01-12:00, Thu., 14 Sep. 0.0301 0.0263 0.0280
10:01-11:00, Thu., 14 Sep. 0.0303 0.0256 0.0278
09:01-10:00, Thu., 14 Sep. 0.0310 0.0266 0.0281
08:01-09:00, Thu., 14 Sep. 0.0301 0.0269 0.0283
07:01-08:00, Thu., 14 Sep. 0.0318 0.0268 0.0290
06:01-07:00, Thu., 14 Sep. 0.0318 0.0270 0.0294
05:01-06:00, Thu., 14 Sep. 0.0310 0.0263 0.0288
04:01-05:00, Thu., 14 Sep. 0.0320 0.0263 0.0289
03:01-04:00, Thu., 14 Sep. 0.0301 0.0265 0.0282
02:01-03:00, Thu., 14 Sep. 0.0309 0.0259 0.0282
01:01-02:00, Thu., 14 Sep. 0.0304 0.0259 0.0279
00:01-01:00, Thu., 14 Sep. 0.0308 0.0256 0.0279
23:01-24:00, Wed., 13 Sep. 0.0299 0.0256 0.0277
22:01-23:00, Wed., 13 Sep. 0.0308 0.0249 0.0277
21:01-22:00, Wed., 13 Sep. 0.0296 0.0250 0.0276
20:01-21:00, Wed., 13 Sep. 0.0296 0.0255 0.0274
19:01-20:00, Wed., 13 Sep. 0.0308 0.0255 0.0278
18:01-19:00, Wed., 13 Sep. 0.0298 0.0262 0.0280
17:01-18:00, Wed., 13 Sep. 0.0297 0.0260 0.0280
16:01-17:00, Wed., 13 Sep. 0.0298 0.0256 0.0281
15:01-16:00, Wed., 13 Sep. 0.0308 0.0263 0.0278
14:01-15:00, Wed., 13 Sep. 0.0306 0.0247 0.0278
13:01-14:00, Wed., 13 Sep. 0.0306 0.0256 0.0280
12:01-13:00, Wed., 13 Sep. 0.0301 0.0253 0.0280
11:01-12:00, Wed., 13 Sep. 0.0301 0.0263 0.0279
10:01-11:00, Wed., 13 Sep. 0.0297 0.0259 0.0281
09:01-10:00, Wed., 13 Sep. 0.0304 0.0261 0.0280
08:01-09:00, Wed., 13 Sep. 0.0303 0.0259 0.0283
07:01-08:00, Wed., 13 Sep. 0.0308 0.0271 0.0287
06:01-07:00, Wed., 13 Sep. 0.0310 0.0267 0.0291
05:01-06:00, Wed., 13 Sep. 0.0313 0.0273 0.0291
04:01-05:00, Wed., 13 Sep. 0.0310 0.0273 0.0288
03:01-04:00, Wed., 13 Sep. 0.0303 0.0263 0.0284
02:01-03:00, Wed., 13 Sep. 0.0299 0.0259 0.0279
01:01-02:00, Wed., 13 Sep. 0.0296 0.0254 0.0278
00:01-01:00, Wed., 13 Sep. 0.0302 0.0252 0.0276
23:01-24:00, Tue., 12 Sep. 0.0310 0.0263 0.0279
22:01-23:00, Tue., 12 Sep. 0.0303 0.0264 0.0278
21:01-22:00, Tue., 12 Sep. 0.0299 0.0259 0.0276
20:01-21:00, Tue., 12 Sep. 0.0294 0.0252 0.0277
19:01-20:00, Tue., 12 Sep. 0.0311 0.0257 0.0276
18:01-19:00, Tue., 12 Sep. 0.0294 0.0255 0.0275
17:01-18:00, Tue., 12 Sep. 0.0302 0.0262 0.0278
16:01-17:00, Tue., 12 Sep. 0.0298 0.0256 0.0277
15:01-16:00, Tue., 12 Sep. 0.0298 0.0260 0.0278
14:01-15:00, Tue., 12 Sep. 0.0304 0.0257 0.0276
13:01-14:00, Tue., 12 Sep. 0.0299 0.0263 0.0278
12:01-13:00, Tue., 12 Sep. 0.0302 0.0256 0.0275
11:01-12:00, Tue., 12 Sep. 0.0292 0.0257 0.0275
10:01-11:00, Tue., 12 Sep. 0.0292 0.0262 0.0278
09:01-10:00, Tue., 12 Sep. 0.0299 0.0256 0.0277
08:01-09:00, Tue., 12 Sep. 0.0295 0.0259 0.0278
07:01-08:00, Tue., 12 Sep. 0.0304 0.0259 0.0281
06:01-07:00, Tue., 12 Sep. 0.0315 0.0264 0.0284
05:01-06:00, Tue., 12 Sep. 0.0308 0.0262 0.0281
04:01-05:00, Tue., 12 Sep. 0.0307 0.0258 0.0278
03:01-04:00, Tue., 12 Sep. 0.0299 0.0261 0.0278
02:01-03:00, Tue., 12 Sep. 0.0299 0.0252 0.0277
01:01-02:00, Tue., 12 Sep. 0.0300 0.0251 0.0276
00:01-01:00, Tue., 12 Sep. 0.0298 0.0255 0.0275
23:01-24:00, Mon., 11 Sep. 0.0297 0.0252 0.0275
22:01-23:00, Mon., 11 Sep. 0.0302 0.0252 0.0275
21:01-22:00, Mon., 11 Sep. 0.0306 0.0249 0.0273
20:01-21:00, Mon., 11 Sep. 0.0292 0.0256 0.0275
19:01-20:00, Mon., 11 Sep. 0.0290 0.0251 0.0273
18:01-19:00, Mon., 11 Sep. 0.0296 0.0256 0.0274
17:01-18:00, Mon., 11 Sep. 0.0303 0.0248 0.0274
16:01-17:00, Mon., 11 Sep. 0.0310 0.0251 0.0275
15:01-16:00, Mon., 11 Sep. 0.0297 0.0254 0.0275
14:01-15:00, Mon., 11 Sep. 0.0300 0.0251 0.0276
13:01-14:00, Mon., 11 Sep. 0.0291 0.0253 0.0272
12:01-13:00, Mon., 11 Sep. 0.0292 0.0252 0.0273
11:01-12:00, Mon., 11 Sep. 0.0302 0.0252 0.0276
10:01-11:00, Mon., 11 Sep. 0.0293 0.0255 0.0271
09:01-10:00, Mon., 11 Sep. 0.0288 0.0254 0.0273
08:01-09:00, Mon., 11 Sep. 0.0296 0.0250 0.0272
07:01-08:00, Mon., 11 Sep. 0.0294 0.0249 0.0273
06:01-07:00, Mon., 11 Sep. 0.0285 0.0256 0.0272
05:01-06:00, Mon., 11 Sep. 0.0297 0.0257 0.0273
04:01-05:00, Mon., 11 Sep. 0.0295 0.0258 0.0273
03:01-04:00, Mon., 11 Sep. 0.0296 0.0243 0.0274
02:01-03:00, Mon., 11 Sep. 0.0301 0.0253 0.0273
01:01-02:00, Mon., 11 Sep. 0.0292 0.0245 0.0272
00:01-01:00, Mon., 11 Sep. 0.0293 0.0251 0.0271