Measurement results by the hour (Chofu) 18 Oct., 2021 - 24 Oct., 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., 24 Oct. 0.0303 0.0265 0.0281
22:01-23:00, Sun., 24 Oct. 0.0308 0.0260 0.0281
21:01-22:00, Sun., 24 Oct. 0.0298 0.0253 0.0275
20:01-21:00, Sun., 24 Oct. 0.0305 0.0249 0.0274
19:01-20:00, Sun., 24 Oct. 0.0295 0.0251 0.0273
18:01-19:00, Sun., 24 Oct. 0.0298 0.0257 0.0275
17:01-18:00, Sun., 24 Oct. 0.0291 0.0257 0.0270
16:01-17:00, Sun., 24 Oct. 0.0297 0.0255 0.0271
15:01-16:00, Sun., 24 Oct. 0.0295 0.0251 0.0270
14:01-15:00, Sun., 24 Oct. 0.0289 0.0254 0.0270
13:01-14:00, Sun., 24 Oct. 0.0292 0.0243 0.0272
12:01-13:00, Sun., 24 Oct. 0.0294 0.0258 0.0276
11:01-12:00, Sun., 24 Oct. 0.0296 0.0257 0.0277
10:01-11:00, Sun., 24 Oct. 0.0296 0.0268 0.0281
09:01-10:00, Sun., 24 Oct. 0.0306 0.0261 0.0287
08:01-09:00, Sun., 24 Oct. 0.0308 0.0269 0.0289
07:01-08:00, Sun., 24 Oct. 0.0317 0.0278 0.0296
06:01-07:00, Sun., 24 Oct. 0.0320 0.0268 0.0293
05:01-06:00, Sun., 24 Oct. 0.0303 0.0268 0.0288
04:01-05:00, Sun., 24 Oct. 0.0300 0.0259 0.0283
03:01-04:00, Sun., 24 Oct. 0.0296 0.0250 0.0278
02:01-03:00, Sun., 24 Oct. 0.0295 0.0261 0.0279
01:01-02:00, Sun., 24 Oct. 0.0295 0.0255 0.0276
00:01-01:00, Sun., 24 Oct. 0.0289 0.0254 0.0272
23:01-24:00, Sat., 23 Oct. 0.0293 0.0254 0.0274
22:01-23:00, Sat., 23 Oct. 0.0285 0.0258 0.0271
21:01-22:00, Sat., 23 Oct. 0.0293 0.0259 0.0274
20:01-21:00, Sat., 23 Oct. 0.0293 0.0252 0.0272
19:01-20:00, Sat., 23 Oct. 0.0291 0.0258 0.0271
18:01-19:00, Sat., 23 Oct. 0.0295 0.0254 0.0272
17:01-18:00, Sat., 23 Oct. 0.0292 0.0255 0.0273
16:01-17:00, Sat., 23 Oct. 0.0287 0.0254 0.0271
15:01-16:00, Sat., 23 Oct. 0.0284 0.0259 0.0272
14:01-15:00, Sat., 23 Oct. 0.0284 0.0252 0.0271
13:01-14:00, Sat., 23 Oct. 0.0291 0.0249 0.0270
12:01-13:00, Sat., 23 Oct. 0.0289 0.0250 0.0271
11:01-12:00, Sat., 23 Oct. 0.0293 0.0251 0.0273
10:01-11:00, Sat., 23 Oct. 0.0297 0.0252 0.0274
09:01-10:00, Sat., 23 Oct. 0.0300 0.0259 0.0277
08:01-09:00, Sat., 23 Oct. 0.0312 0.0270 0.0285
07:01-08:00, Sat., 23 Oct. 0.0318 0.0272 0.0293
06:01-07:00, Sat., 23 Oct. 0.0309 0.0264 0.0284
05:01-06:00, Sat., 23 Oct. 0.0299 0.0262 0.0280
04:01-05:00, Sat., 23 Oct. 0.0294 0.0260 0.0277
03:01-04:00, Sat., 23 Oct. 0.0297 0.0260 0.0275
02:01-03:00, Sat., 23 Oct. 0.0295 0.0258 0.0275
01:01-02:00, Sat., 23 Oct. 0.0302 0.0261 0.0279
00:01-01:00, Sat., 23 Oct. 0.0306 0.0264 0.0279
23:01-24:00, Fri., 22 Oct. 0.0303 0.0273 0.0287
22:01-23:00, Fri., 22 Oct. 0.0368 0.0291 0.0321
21:01-22:00, Fri., 22 Oct. 0.0370 0.0308 0.0340
20:01-21:00, Fri., 22 Oct. 0.0336 0.0295 0.0312
19:01-20:00, Fri., 22 Oct. 0.0336 0.0287 0.0309
18:01-19:00, Fri., 22 Oct. 0.0335 0.0283 0.0312
17:01-18:00, Fri., 22 Oct. 0.0363 0.0321 0.0344
16:01-17:00, Fri., 22 Oct. 0.0402 0.0329 0.0358
15:01-16:00, Fri., 22 Oct. 0.0389 0.0330 0.0358
14:01-15:00, Fri., 22 Oct. 0.0350 0.0285 0.0319
13:01-14:00, Fri., 22 Oct. 0.0377 0.0317 0.0350
12:01-13:00, Fri., 22 Oct. 0.0444 0.0360 0.0392
11:01-12:00, Fri., 22 Oct. 0.0464 0.0393 0.0428
10:01-11:00, Fri., 22 Oct. 0.0504 0.0410 0.0459
09:01-10:00, Fri., 22 Oct. 0.0470 0.0344 0.0383
08:01-09:00, Fri., 22 Oct. 0.0395 0.0341 0.0364
07:01-08:00, Fri., 22 Oct. 0.0365 0.0305 0.0330
06:01-07:00, Fri., 22 Oct. 0.0341 0.0294 0.0312
05:01-06:00, Fri., 22 Oct. 0.0314 0.0265 0.0286
04:01-05:00, Fri., 22 Oct. 0.0311 0.0272 0.0291
03:01-04:00, Fri., 22 Oct. 0.0315 0.0266 0.0295
02:01-03:00, Fri., 22 Oct. 0.0335 0.0276 0.0305
01:01-02:00, Fri., 22 Oct. 0.0311 0.0265 0.0281
00:01-01:00, Fri., 22 Oct. 0.0295 0.0258 0.0277
23:01-24:00, Thu., 21 Oct. 0.0298 0.0254 0.0276
22:01-23:00, Thu., 21 Oct. 0.0293 0.0254 0.0275
21:01-22:00, Thu., 21 Oct. 0.0293 0.0258 0.0275
20:01-21:00, Thu., 21 Oct. 0.0295 0.0253 0.0273
19:01-20:00, Thu., 21 Oct. 0.0286 0.0252 0.0270
18:01-19:00, Thu., 21 Oct. 0.0294 0.0250 0.0274
17:01-18:00, Thu., 21 Oct. 0.0303 0.0253 0.0272
16:01-17:00, Thu., 21 Oct. 0.0288 0.0256 0.0271
15:01-16:00, Thu., 21 Oct. 0.0285 0.0256 0.0271
14:01-15:00, Thu., 21 Oct. 0.0291 0.0250 0.0271
13:01-14:00, Thu., 21 Oct. 0.0293 0.0256 0.0271
12:01-13:00, Thu., 21 Oct. 0.0292 0.0255 0.0272
11:01-12:00, Thu., 21 Oct. 0.0300 0.0249 0.0271
10:01-11:00, Thu., 21 Oct. 0.0295 0.0257 0.0276
09:01-10:00, Thu., 21 Oct. 0.0300 0.0259 0.0276
08:01-09:00, Thu., 21 Oct. 0.0299 0.0258 0.0278
07:01-08:00, Thu., 21 Oct. 0.0300 0.0262 0.0278
06:01-07:00, Thu., 21 Oct. 0.0295 0.0252 0.0277
05:01-06:00, Thu., 21 Oct. 0.0292 0.0261 0.0277
04:01-05:00, Thu., 21 Oct. 0.0304 0.0253 0.0281
03:01-04:00, Thu., 21 Oct. 0.0294 0.0262 0.0279
02:01-03:00, Thu., 21 Oct. 0.0296 0.0254 0.0276
01:01-02:00, Thu., 21 Oct. 0.0294 0.0251 0.0277
00:01-01:00, Thu., 21 Oct. 0.0296 0.0254 0.0276
23:01-24:00, Wed., 20 Oct. 0.0293 0.0261 0.0277
22:01-23:00, Wed., 20 Oct. 0.0292 0.0257 0.0276
21:01-22:00, Wed., 20 Oct. 0.0291 0.0262 0.0278
20:01-21:00, Wed., 20 Oct. 0.0300 0.0260 0.0278
19:01-20:00, Wed., 20 Oct. 0.0295 0.0260 0.0277
18:01-19:00, Wed., 20 Oct. 0.0295 0.0256 0.0278
17:01-18:00, Wed., 20 Oct. 0.0294 0.0256 0.0276
16:01-17:00, Wed., 20 Oct. 0.0293 0.0257 0.0274
15:01-16:00, Wed., 20 Oct. 0.0294 0.0260 0.0276
14:01-15:00, Wed., 20 Oct. 0.0297 0.0253 0.0276
13:01-14:00, Wed., 20 Oct. 0.0299 0.0262 0.0277
12:01-13:00, Wed., 20 Oct. 0.0303 0.0258 0.0276
11:01-12:00, Wed., 20 Oct. 0.0297 0.0251 0.0278
10:01-11:00, Wed., 20 Oct. 0.0299 0.0261 0.0283
09:01-10:00, Wed., 20 Oct. 0.0307 0.0262 0.0284
08:01-09:00, Wed., 20 Oct. 0.0310 0.0261 0.0287
07:01-08:00, Wed., 20 Oct. 0.0327 0.0280 0.0296
06:01-07:00, Wed., 20 Oct. 0.0314 0.0275 0.0295
05:01-06:00, Wed., 20 Oct. 0.0303 0.0272 0.0286
04:01-05:00, Wed., 20 Oct. 0.0298 0.0255 0.0276
03:01-04:00, Wed., 20 Oct. 0.0301 0.0260 0.0277
02:01-03:00, Wed., 20 Oct. 0.0299 0.0260 0.0278
01:01-02:00, Wed., 20 Oct. 0.0307 0.0267 0.0285
00:01-01:00, Wed., 20 Oct. 0.0340 0.0284 0.0310
23:01-24:00, Tue., 19 Oct. 0.0394 0.0325 0.0362
22:01-23:00, Tue., 19 Oct. 0.0396 0.0348 0.0371
21:01-22:00, Tue., 19 Oct. 0.0397 0.0343 0.0366
20:01-21:00, Tue., 19 Oct. 0.0380 0.0278 0.0311
19:01-20:00, Tue., 19 Oct. 0.0297 0.0258 0.0277
18:01-19:00, Tue., 19 Oct. 0.0300 0.0259 0.0276
17:01-18:00, Tue., 19 Oct. 0.0297 0.0256 0.0273
16:01-17:00, Tue., 19 Oct. 0.0289 0.0254 0.0273
15:01-16:00, Tue., 19 Oct. 0.0297 0.0256 0.0273
14:01-15:00, Tue., 19 Oct. 0.0293 0.0255 0.0274
13:01-14:00, Tue., 19 Oct. 0.0305 0.0254 0.0275
12:01-13:00, Tue., 19 Oct. 0.0293 0.0246 0.0274
11:01-12:00, Tue., 19 Oct. 0.0307 0.0263 0.0282
10:01-11:00, Tue., 19 Oct. 0.0327 0.0282 0.0304
09:01-10:00, Tue., 19 Oct. 0.0341 0.0286 0.0310
08:01-09:00, Tue., 19 Oct. 0.0375 0.0318 0.0351
07:01-08:00, Tue., 19 Oct. 0.0365 0.0313 0.0338
06:01-07:00, Tue., 19 Oct. 0.0318 0.0262 0.0288
05:01-06:00, Tue., 19 Oct. 0.0304 0.0267 0.0286
04:01-05:00, Tue., 19 Oct. 0.0323 0.0280 0.0300
03:01-04:00, Tue., 19 Oct. 0.0306 0.0263 0.0282
02:01-03:00, Tue., 19 Oct. 0.0297 0.0260 0.0279
01:01-02:00, Tue., 19 Oct. 0.0314 0.0263 0.0282
00:01-01:00, Tue., 19 Oct. 0.0307 0.0266 0.0283
23:01-24:00, Mon., 18 Oct. 0.0296 0.0264 0.0280
22:01-23:00, Mon., 18 Oct. 0.0296 0.0256 0.0275
21:01-22:00, Mon., 18 Oct. 0.0288 0.0249 0.0270
20:01-21:00, Mon., 18 Oct. 0.0296 0.0248 0.0270
19:01-20:00, Mon., 18 Oct. 0.0292 0.0250 0.0268
18:01-19:00, Mon., 18 Oct. 0.0288 0.0254 0.0269
17:01-18:00, Mon., 18 Oct. 0.0286 0.0247 0.0266
16:01-17:00, Mon., 18 Oct. 0.0288 0.0248 0.0267
15:01-16:00, Mon., 18 Oct. 0.0290 0.0246 0.0266
14:01-15:00, Mon., 18 Oct. 0.0291 0.0248 0.0269
13:01-14:00, Mon., 18 Oct. 0.0284 0.0252 0.0267
12:01-13:00, Mon., 18 Oct. 0.0293 0.0256 0.0270
11:01-12:00, Mon., 18 Oct. 0.0298 0.0250 0.0273
10:01-11:00, Mon., 18 Oct. 0.0297 0.0255 0.0273
09:01-10:00, Mon., 18 Oct. 0.0297 0.0252 0.0275
08:01-09:00, Mon., 18 Oct. 0.0289 0.0255 0.0274
07:01-08:00, Mon., 18 Oct. 0.0292 0.0255 0.0276
06:01-07:00, Mon., 18 Oct. 0.0302 0.0258 0.0273
05:01-06:00, Mon., 18 Oct. 0.0294 0.0259 0.0273
04:01-05:00, Mon., 18 Oct. 0.0284 0.0259 0.0272
03:01-04:00, Mon., 18 Oct. 0.0283 0.0256 0.0272
02:01-03:00, Mon., 18 Oct. 0.0301 0.0255 0.0273
01:01-02:00, Mon., 18 Oct. 0.0288 0.0255 0.0273
00:01-01:00, Mon., 18 Oct. 0.0290 0.0257 0.0273