Measurement results by the hour (Chofu) 17 Oct., 2022 - 23 Oct., 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., 23 Oct. 0.0335 0.0286 0.0309
22:01-23:00, Sun., 23 Oct. 0.0313 0.0263 0.0284
21:01-22:00, Sun., 23 Oct. 0.0300 0.0261 0.0282
20:01-21:00, Sun., 23 Oct. 0.0303 0.0253 0.0281
19:01-20:00, Sun., 23 Oct. 0.0303 0.0263 0.0279
18:01-19:00, Sun., 23 Oct. 0.0293 0.0264 0.0275
17:01-18:00, Sun., 23 Oct. 0.0293 0.0257 0.0277
16:01-17:00, Sun., 23 Oct. 0.0300 0.0264 0.0280
15:01-16:00, Sun., 23 Oct. 0.0301 0.0254 0.0280
14:01-15:00, Sun., 23 Oct. 0.0296 0.0256 0.0280
13:01-14:00, Sun., 23 Oct. 0.0296 0.0257 0.0279
12:01-13:00, Sun., 23 Oct. 0.0300 0.0267 0.0282
11:01-12:00, Sun., 23 Oct. 0.0304 0.0267 0.0286
10:01-11:00, Sun., 23 Oct. 0.0308 0.0276 0.0291
09:01-10:00, Sun., 23 Oct. 0.0313 0.0276 0.0295
08:01-09:00, Sun., 23 Oct. 0.0323 0.0281 0.0301
07:01-08:00, Sun., 23 Oct. 0.0321 0.0286 0.0304
06:01-07:00, Sun., 23 Oct. 0.0320 0.0283 0.0302
05:01-06:00, Sun., 23 Oct. 0.0333 0.0286 0.0305
04:01-05:00, Sun., 23 Oct. 0.0322 0.0282 0.0304
03:01-04:00, Sun., 23 Oct. 0.0327 0.0289 0.0307
02:01-03:00, Sun., 23 Oct. 0.0327 0.0284 0.0302
01:01-02:00, Sun., 23 Oct. 0.0321 0.0280 0.0301
00:01-01:00, Sun., 23 Oct. 0.0328 0.0286 0.0303
23:01-24:00, Sat., 22 Oct. 0.0325 0.0272 0.0302
22:01-23:00, Sat., 22 Oct. 0.0320 0.0280 0.0298
21:01-22:00, Sat., 22 Oct. 0.0314 0.0279 0.0297
20:01-21:00, Sat., 22 Oct. 0.0310 0.0268 0.0290
19:01-20:00, Sat., 22 Oct. 0.0314 0.0268 0.0290
18:01-19:00, Sat., 22 Oct. 0.0307 0.0267 0.0287
17:01-18:00, Sat., 22 Oct. 0.0307 0.0259 0.0288
16:01-17:00, Sat., 22 Oct. 0.0310 0.0276 0.0290
15:01-16:00, Sat., 22 Oct. 0.0308 0.0269 0.0289
14:01-15:00, Sat., 22 Oct. 0.0308 0.0267 0.0287
13:01-14:00, Sat., 22 Oct. 0.0309 0.0260 0.0286
12:01-13:00, Sat., 22 Oct. 0.0313 0.0266 0.0289
11:01-12:00, Sat., 22 Oct. 0.0309 0.0271 0.0289
10:01-11:00, Sat., 22 Oct. 0.0305 0.0266 0.0291
09:01-10:00, Sat., 22 Oct. 0.0311 0.0268 0.0291
08:01-09:00, Sat., 22 Oct. 0.0313 0.0274 0.0291
07:01-08:00, Sat., 22 Oct. 0.0313 0.0273 0.0294
06:01-07:00, Sat., 22 Oct. 0.0317 0.0283 0.0297
05:01-06:00, Sat., 22 Oct. 0.0316 0.0269 0.0297
04:01-05:00, Sat., 22 Oct. 0.0311 0.0276 0.0295
03:01-04:00, Sat., 22 Oct. 0.0311 0.0277 0.0294
02:01-03:00, Sat., 22 Oct. 0.0309 0.0274 0.0293
01:01-02:00, Sat., 22 Oct. 0.0318 0.0270 0.0291
00:01-01:00, Sat., 22 Oct. 0.0310 0.0265 0.0288
23:01-24:00, Fri., 21 Oct. 0.0304 0.0265 0.0284
22:01-23:00, Fri., 21 Oct. 0.0304 0.0272 0.0284
21:01-22:00, Fri., 21 Oct. 0.0306 0.0262 0.0284
20:01-21:00, Fri., 21 Oct. 0.0300 0.0265 0.0283
19:01-20:00, Fri., 21 Oct. 0.0295 0.0254 0.0277
18:01-19:00, Fri., 21 Oct. 0.0297 0.0260 0.0275
17:01-18:00, Fri., 21 Oct. 0.0297 0.0258 0.0273
16:01-17:00, Fri., 21 Oct. 0.0293 0.0254 0.0273
15:01-16:00, Fri., 21 Oct. 0.0300 0.0255 0.0272
14:01-15:00, Fri., 21 Oct. 0.0285 0.0254 0.0270
13:01-14:00, Fri., 21 Oct. 0.0285 0.0253 0.0272
12:01-13:00, Fri., 21 Oct. 0.0293 0.0254 0.0274
11:01-12:00, Fri., 21 Oct. 0.0305 0.0271 0.0286
10:01-11:00, Fri., 21 Oct. 0.0310 0.0265 0.0287
09:01-10:00, Fri., 21 Oct. 0.0312 0.0278 0.0293
08:01-09:00, Fri., 21 Oct. 0.0316 0.0281 0.0297
07:01-08:00, Fri., 21 Oct. 0.0316 0.0282 0.0298
06:01-07:00, Fri., 21 Oct. 0.0319 0.0280 0.0298
05:01-06:00, Fri., 21 Oct. 0.0321 0.0273 0.0298
04:01-05:00, Fri., 21 Oct. 0.0316 0.0272 0.0296
03:01-04:00, Fri., 21 Oct. 0.0310 0.0274 0.0293
02:01-03:00, Fri., 21 Oct. 0.0312 0.0268 0.0290
01:01-02:00, Fri., 21 Oct. 0.0307 0.0276 0.0293
00:01-01:00, Fri., 21 Oct. 0.0309 0.0267 0.0288
23:01-24:00, Thu., 20 Oct. 0.0302 0.0265 0.0281
22:01-23:00, Thu., 20 Oct. 0.0301 0.0261 0.0279
21:01-22:00, Thu., 20 Oct. 0.0292 0.0250 0.0275
20:01-21:00, Thu., 20 Oct. 0.0295 0.0258 0.0272
19:01-20:00, Thu., 20 Oct. 0.0300 0.0246 0.0272
18:01-19:00, Thu., 20 Oct. 0.0295 0.0257 0.0273
17:01-18:00, Thu., 20 Oct. 0.0294 0.0252 0.0271
16:01-17:00, Thu., 20 Oct. 0.0287 0.0249 0.0269
15:01-16:00, Thu., 20 Oct. 0.0292 0.0256 0.0271
14:01-15:00, Thu., 20 Oct. 0.0293 0.0251 0.0275
13:01-14:00, Thu., 20 Oct. 0.0293 0.0260 0.0276
12:01-13:00, Thu., 20 Oct. 0.0297 0.0265 0.0279
11:01-12:00, Thu., 20 Oct. 0.0298 0.0256 0.0278
10:01-11:00, Thu., 20 Oct. 0.0304 0.0263 0.0279
09:01-10:00, Thu., 20 Oct. 0.0296 0.0259 0.0277
08:01-09:00, Thu., 20 Oct. 0.0307 0.0264 0.0280
07:01-08:00, Thu., 20 Oct. 0.0302 0.0269 0.0284
06:01-07:00, Thu., 20 Oct. 0.0306 0.0260 0.0285
05:01-06:00, Thu., 20 Oct. 0.0313 0.0262 0.0280
04:01-05:00, Thu., 20 Oct. 0.0299 0.0266 0.0280
03:01-04:00, Thu., 20 Oct. 0.0316 0.0270 0.0286
02:01-03:00, Thu., 20 Oct. 0.0305 0.0263 0.0286
01:01-02:00, Thu., 20 Oct. 0.0310 0.0257 0.0284
00:01-01:00, Thu., 20 Oct. 0.0305 0.0256 0.0281
23:01-24:00, Wed., 19 Oct. 0.0300 0.0259 0.0279
22:01-23:00, Wed., 19 Oct. 0.0305 0.0264 0.0281
21:01-22:00, Wed., 19 Oct. 0.0304 0.0265 0.0281
20:01-21:00, Wed., 19 Oct. 0.0293 0.0257 0.0276
19:01-20:00, Wed., 19 Oct. 0.0291 0.0249 0.0273
18:01-19:00, Wed., 19 Oct. 0.0296 0.0250 0.0271
17:01-18:00, Wed., 19 Oct. 0.0286 0.0252 0.0271
16:01-17:00, Wed., 19 Oct. 0.0285 0.0252 0.0270
15:01-16:00, Wed., 19 Oct. 0.0289 0.0253 0.0273
14:01-15:00, Wed., 19 Oct. 0.0298 0.0251 0.0271
13:01-14:00, Wed., 19 Oct. 0.0293 0.0256 0.0274
12:01-13:00, Wed., 19 Oct. 0.0304 0.0253 0.0276
11:01-12:00, Wed., 19 Oct. 0.0291 0.0256 0.0273
10:01-11:00, Wed., 19 Oct. 0.0294 0.0256 0.0276
09:01-10:00, Wed., 19 Oct. 0.0302 0.0253 0.0274
08:01-09:00, Wed., 19 Oct. 0.0289 0.0248 0.0272
07:01-08:00, Wed., 19 Oct. 0.0287 0.0250 0.0274
06:01-07:00, Wed., 19 Oct. 0.0293 0.0255 0.0277
05:01-06:00, Wed., 19 Oct. 0.0335 0.0269 0.0297
04:01-05:00, Wed., 19 Oct. 0.0361 0.0294 0.0336
03:01-04:00, Wed., 19 Oct. 0.0349 0.0295 0.0323
02:01-03:00, Wed., 19 Oct. 0.0341 0.0295 0.0319
01:01-02:00, Wed., 19 Oct. 0.0362 0.0297 0.0332
00:01-01:00, Wed., 19 Oct. 0.0316 0.0272 0.0293
23:01-24:00, Tue., 18 Oct. 0.0349 0.0292 0.0321
22:01-23:00, Tue., 18 Oct. 0.0386 0.0320 0.0349
21:01-22:00, Tue., 18 Oct. 0.0407 0.0349 0.0372
20:01-21:00, Tue., 18 Oct. 0.0412 0.0279 0.0336
19:01-20:00, Tue., 18 Oct. 0.0297 0.0250 0.0276
18:01-19:00, Tue., 18 Oct. 0.0294 0.0249 0.0272
17:01-18:00, Tue., 18 Oct. 0.0291 0.0253 0.0271
16:01-17:00, Tue., 18 Oct. 0.0288 0.0255 0.0271
15:01-16:00, Tue., 18 Oct. 0.0292 0.0255 0.0270
14:01-15:00, Tue., 18 Oct. 0.0291 0.0252 0.0272
13:01-14:00, Tue., 18 Oct. 0.0296 0.0254 0.0271
12:01-13:00, Tue., 18 Oct. 0.0294 0.0251 0.0272
11:01-12:00, Tue., 18 Oct. 0.0301 0.0253 0.0274
10:01-11:00, Tue., 18 Oct. 0.0292 0.0256 0.0272
09:01-10:00, Tue., 18 Oct. 0.0297 0.0253 0.0275
08:01-09:00, Tue., 18 Oct. 0.0299 0.0267 0.0281
07:01-08:00, Tue., 18 Oct. 0.0312 0.0259 0.0282
06:01-07:00, Tue., 18 Oct. 0.0315 0.0263 0.0284
05:01-06:00, Tue., 18 Oct. 0.0335 0.0278 0.0305
04:01-05:00, Tue., 18 Oct. 0.0356 0.0312 0.0332
03:01-04:00, Tue., 18 Oct. 0.0320 0.0256 0.0284
02:01-03:00, Tue., 18 Oct. 0.0319 0.0273 0.0290
01:01-02:00, Tue., 18 Oct. 0.0313 0.0270 0.0289
00:01-01:00, Tue., 18 Oct. 0.0307 0.0270 0.0291
23:01-24:00, Mon., 17 Oct. 0.0307 0.0267 0.0282
22:01-23:00, Mon., 17 Oct. 0.0314 0.0266 0.0285
21:01-22:00, Mon., 17 Oct. 0.0305 0.0268 0.0282
20:01-21:00, Mon., 17 Oct. 0.0306 0.0265 0.0291
19:01-20:00, Mon., 17 Oct. 0.0319 0.0270 0.0304
18:01-19:00, Mon., 17 Oct. 0.0311 0.0263 0.0285
17:01-18:00, Mon., 17 Oct. 0.0287 0.0248 0.0271
16:01-17:00, Mon., 17 Oct. 0.0298 0.0257 0.0277
15:01-16:00, Mon., 17 Oct. 0.0304 0.0256 0.0282
14:01-15:00, Mon., 17 Oct. 0.0326 0.0281 0.0298
13:01-14:00, Mon., 17 Oct. 0.0312 0.0268 0.0291
12:01-13:00, Mon., 17 Oct. 0.0312 0.0266 0.0287
11:01-12:00, Mon., 17 Oct. 0.0317 0.0275 0.0295
10:01-11:00, Mon., 17 Oct. 0.0302 0.0258 0.0280
09:01-10:00, Mon., 17 Oct. 0.0298 0.0254 0.0274
08:01-09:00, Mon., 17 Oct. 0.0291 0.0252 0.0273
07:01-08:00, Mon., 17 Oct. 0.0303 0.0261 0.0278
06:01-07:00, Mon., 17 Oct. 0.0300 0.0259 0.0280
05:01-06:00, Mon., 17 Oct. 0.0306 0.0260 0.0281
04:01-05:00, Mon., 17 Oct. 0.0303 0.0259 0.0280
03:01-04:00, Mon., 17 Oct. 0.0299 0.0265 0.0281
02:01-03:00, Mon., 17 Oct. 0.0304 0.0256 0.0276
01:01-02:00, Mon., 17 Oct. 0.0293 0.0251 0.0270
00:01-01:00, Mon., 17 Oct. 0.0281 0.0249 0.0265