Measurement results by the hour (Chofu) 9 Oct., 2023 - 15 Oct., 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., 15 Oct. 0.0304 0.0263 0.0283
22:01-23:00, Sun., 15 Oct. 0.0302 0.0266 0.0284
21:01-22:00, Sun., 15 Oct. 0.0311 0.0262 0.0282
20:01-21:00, Sun., 15 Oct. 0.0301 0.0264 0.0280
19:01-20:00, Sun., 15 Oct. 0.0325 0.0269 0.0297
18:01-19:00, Sun., 15 Oct. 0.0335 0.0266 0.0305
17:01-18:00, Sun., 15 Oct. 0.0301 0.0259 0.0277
16:01-17:00, Sun., 15 Oct. 0.0296 0.0255 0.0278
15:01-16:00, Sun., 15 Oct. 0.0306 0.0263 0.0281
14:01-15:00, Sun., 15 Oct. 0.0316 0.0269 0.0290
13:01-14:00, Sun., 15 Oct. 0.0368 0.0294 0.0330
12:01-13:00, Sun., 15 Oct. 0.0452 0.0344 0.0402
11:01-12:00, Sun., 15 Oct. 0.0470 0.0405 0.0430
10:01-11:00, Sun., 15 Oct. 0.0469 0.0401 0.0433
09:01-10:00, Sun., 15 Oct. 0.0455 0.0402 0.0428
08:01-09:00, Sun., 15 Oct. 0.0429 0.0374 0.0404
07:01-08:00, Sun., 15 Oct. 0.0423 0.0366 0.0390
06:01-07:00, Sun., 15 Oct. 0.0421 0.0361 0.0396
05:01-06:00, Sun., 15 Oct. 0.0419 0.0349 0.0381
04:01-05:00, Sun., 15 Oct. 0.0385 0.0333 0.0365
03:01-04:00, Sun., 15 Oct. 0.0383 0.0337 0.0367
02:01-03:00, Sun., 15 Oct. 0.0395 0.0351 0.0373
01:01-02:00, Sun., 15 Oct. 0.0382 0.0344 0.0359
00:01-01:00, Sun., 15 Oct. 0.0368 0.0325 0.0345
23:01-24:00, Sat., 14 Oct. 0.0354 0.0286 0.0320
22:01-23:00, Sat., 14 Oct. 0.0326 0.0277 0.0300
21:01-22:00, Sat., 14 Oct. 0.0310 0.0269 0.0290
20:01-21:00, Sat., 14 Oct. 0.0308 0.0268 0.0287
19:01-20:00, Sat., 14 Oct. 0.0307 0.0260 0.0283
18:01-19:00, Sat., 14 Oct. 0.0301 0.0263 0.0279
17:01-18:00, Sat., 14 Oct. 0.0305 0.0260 0.0281
16:01-17:00, Sat., 14 Oct. 0.0307 0.0253 0.0282
15:01-16:00, Sat., 14 Oct. 0.0307 0.0255 0.0281
14:01-15:00, Sat., 14 Oct. 0.0313 0.0262 0.0284
13:01-14:00, Sat., 14 Oct. 0.0318 0.0266 0.0286
12:01-13:00, Sat., 14 Oct. 0.0308 0.0267 0.0287
11:01-12:00, Sat., 14 Oct. 0.0312 0.0272 0.0291
10:01-11:00, Sat., 14 Oct. 0.0315 0.0266 0.0294
09:01-10:00, Sat., 14 Oct. 0.0315 0.0269 0.0292
08:01-09:00, Sat., 14 Oct. 0.0318 0.0276 0.0294
07:01-08:00, Sat., 14 Oct. 0.0313 0.0263 0.0295
06:01-07:00, Sat., 14 Oct. 0.0315 0.0266 0.0293
05:01-06:00, Sat., 14 Oct. 0.0315 0.0278 0.0293
04:01-05:00, Sat., 14 Oct. 0.0312 0.0274 0.0294
03:01-04:00, Sat., 14 Oct. 0.0333 0.0274 0.0294
02:01-03:00, Sat., 14 Oct. 0.0315 0.0266 0.0292
01:01-02:00, Sat., 14 Oct. 0.0305 0.0271 0.0289
00:01-01:00, Sat., 14 Oct. 0.0301 0.0261 0.0284
23:01-24:00, Fri., 13 Oct. 0.0317 0.0259 0.0284
22:01-23:00, Fri., 13 Oct. 0.0307 0.0258 0.0286
21:01-22:00, Fri., 13 Oct. 0.0304 0.0259 0.0282
20:01-21:00, Fri., 13 Oct. 0.0297 0.0254 0.0277
19:01-20:00, Fri., 13 Oct. 0.0296 0.0256 0.0275
18:01-19:00, Fri., 13 Oct. 0.0311 0.0252 0.0276
17:01-18:00, Fri., 13 Oct. 0.0297 0.0255 0.0275
16:01-17:00, Fri., 13 Oct. 0.0302 0.0262 0.0279
15:01-16:00, Fri., 13 Oct. 0.0300 0.0262 0.0277
14:01-15:00, Fri., 13 Oct. 0.0301 0.0256 0.0277
13:01-14:00, Fri., 13 Oct. 0.0292 0.0249 0.0278
12:01-13:00, Fri., 13 Oct. 0.0304 0.0263 0.0279
11:01-12:00, Fri., 13 Oct. 0.0309 0.0258 0.0281
10:01-11:00, Fri., 13 Oct. 0.0304 0.0262 0.0279
09:01-10:00, Fri., 13 Oct. 0.0301 0.0264 0.0283
08:01-09:00, Fri., 13 Oct. 0.0304 0.0269 0.0286
07:01-08:00, Fri., 13 Oct. 0.0308 0.0261 0.0283
06:01-07:00, Fri., 13 Oct. 0.0298 0.0262 0.0280
05:01-06:00, Fri., 13 Oct. 0.0301 0.0256 0.0277
04:01-05:00, Fri., 13 Oct. 0.0299 0.0256 0.0280
03:01-04:00, Fri., 13 Oct. 0.0298 0.0259 0.0281
02:01-03:00, Fri., 13 Oct. 0.0299 0.0259 0.0279
01:01-02:00, Fri., 13 Oct. 0.0300 0.0259 0.0278
00:01-01:00, Fri., 13 Oct. 0.0304 0.0252 0.0278
23:01-24:00, Thu., 12 Oct. 0.0295 0.0250 0.0276
22:01-23:00, Thu., 12 Oct. 0.0312 0.0260 0.0284
21:01-22:00, Thu., 12 Oct. 0.0329 0.0283 0.0304
20:01-21:00, Thu., 12 Oct. 0.0348 0.0281 0.0320
19:01-20:00, Thu., 12 Oct. 0.0297 0.0249 0.0276
18:01-19:00, Thu., 12 Oct. 0.0294 0.0253 0.0272
17:01-18:00, Thu., 12 Oct. 0.0295 0.0257 0.0275
16:01-17:00, Thu., 12 Oct. 0.0293 0.0251 0.0276
15:01-16:00, Thu., 12 Oct. 0.0295 0.0252 0.0276
14:01-15:00, Thu., 12 Oct. 0.0297 0.0260 0.0279
13:01-14:00, Thu., 12 Oct. 0.0300 0.0258 0.0279
12:01-13:00, Thu., 12 Oct. 0.0299 0.0259 0.0278
11:01-12:00, Thu., 12 Oct. 0.0297 0.0257 0.0279
10:01-11:00, Thu., 12 Oct. 0.0308 0.0256 0.0281
09:01-10:00, Thu., 12 Oct. 0.0310 0.0264 0.0285
08:01-09:00, Thu., 12 Oct. 0.0303 0.0259 0.0284
07:01-08:00, Thu., 12 Oct. 0.0307 0.0269 0.0286
06:01-07:00, Thu., 12 Oct. 0.0300 0.0267 0.0284
05:01-06:00, Thu., 12 Oct. 0.0304 0.0257 0.0281
04:01-05:00, Thu., 12 Oct. 0.0304 0.0262 0.0282
03:01-04:00, Thu., 12 Oct. 0.0294 0.0258 0.0277
02:01-03:00, Thu., 12 Oct. 0.0296 0.0258 0.0278
01:01-02:00, Thu., 12 Oct. 0.0298 0.0260 0.0277
00:01-01:00, Thu., 12 Oct. 0.0295 0.0252 0.0276
23:01-24:00, Wed., 11 Oct. 0.0292 0.0252 0.0276
22:01-23:00, Wed., 11 Oct. 0.0310 0.0258 0.0277
21:01-22:00, Wed., 11 Oct. 0.0299 0.0251 0.0275
20:01-21:00, Wed., 11 Oct. 0.0298 0.0259 0.0274
19:01-20:00, Wed., 11 Oct. 0.0302 0.0252 0.0277
18:01-19:00, Wed., 11 Oct. 0.0294 0.0252 0.0274
17:01-18:00, Wed., 11 Oct. 0.0295 0.0257 0.0275
16:01-17:00, Wed., 11 Oct. 0.0298 0.0254 0.0274
15:01-16:00, Wed., 11 Oct. 0.0292 0.0249 0.0274
14:01-15:00, Wed., 11 Oct. 0.0297 0.0259 0.0276
13:01-14:00, Wed., 11 Oct. 0.0300 0.0252 0.0275
12:01-13:00, Wed., 11 Oct. 0.0291 0.0255 0.0275
11:01-12:00, Wed., 11 Oct. 0.0303 0.0255 0.0275
10:01-11:00, Wed., 11 Oct. 0.0289 0.0249 0.0271
09:01-10:00, Wed., 11 Oct. 0.0293 0.0252 0.0272
08:01-09:00, Wed., 11 Oct. 0.0290 0.0257 0.0274
07:01-08:00, Wed., 11 Oct. 0.0301 0.0254 0.0274
06:01-07:00, Wed., 11 Oct. 0.0290 0.0260 0.0275
05:01-06:00, Wed., 11 Oct. 0.0290 0.0259 0.0275
04:01-05:00, Wed., 11 Oct. 0.0298 0.0252 0.0273
03:01-04:00, Wed., 11 Oct. 0.0294 0.0256 0.0272
02:01-03:00, Wed., 11 Oct. 0.0293 0.0257 0.0274
01:01-02:00, Wed., 11 Oct. 0.0301 0.0256 0.0273
00:01-01:00, Wed., 11 Oct. 0.0298 0.0258 0.0276
23:01-24:00, Tue., 10 Oct. 0.0291 0.0259 0.0274
22:01-23:00, Tue., 10 Oct. 0.0297 0.0256 0.0276
21:01-22:00, Tue., 10 Oct. 0.0299 0.0256 0.0274
20:01-21:00, Tue., 10 Oct. 0.0293 0.0247 0.0273
19:01-20:00, Tue., 10 Oct. 0.0299 0.0256 0.0275
18:01-19:00, Tue., 10 Oct. 0.0300 0.0260 0.0280
17:01-18:00, Tue., 10 Oct. 0.0301 0.0256 0.0280
16:01-17:00, Tue., 10 Oct. 0.0301 0.0258 0.0278
15:01-16:00, Tue., 10 Oct. 0.0306 0.0248 0.0270
14:01-15:00, Tue., 10 Oct. 0.0289 0.0249 0.0272
13:01-14:00, Tue., 10 Oct. 0.0296 0.0251 0.0273
12:01-13:00, Tue., 10 Oct. 0.0293 0.0252 0.0272
11:01-12:00, Tue., 10 Oct. 0.0299 0.0249 0.0270
10:01-11:00, Tue., 10 Oct. 0.0299 0.0249 0.0273
09:01-10:00, Tue., 10 Oct. 0.0287 0.0247 0.0271
08:01-09:00, Tue., 10 Oct. 0.0296 0.0250 0.0275
07:01-08:00, Tue., 10 Oct. 0.0304 0.0257 0.0282
06:01-07:00, Tue., 10 Oct. 0.0339 0.0276 0.0303
05:01-06:00, Tue., 10 Oct. 0.0423 0.0320 0.0366
04:01-05:00, Tue., 10 Oct. 0.0460 0.0393 0.0426
03:01-04:00, Tue., 10 Oct. 0.0426 0.0373 0.0396
02:01-03:00, Tue., 10 Oct. 0.0407 0.0333 0.0364
01:01-02:00, Tue., 10 Oct. 0.0367 0.0291 0.0319
00:01-01:00, Tue., 10 Oct. 0.0357 0.0297 0.0328
23:01-24:00, Mon., 09 Oct. 0.0350 0.0302 0.0330
22:01-23:00, Mon., 09 Oct. 0.0380 0.0311 0.0339
21:01-22:00, Mon., 09 Oct. 0.0377 0.0283 0.0331
20:01-21:00, Mon., 09 Oct. 0.0304 0.0255 0.0276
19:01-20:00, Mon., 09 Oct. 0.0287 0.0259 0.0273
18:01-19:00, Mon., 09 Oct. 0.0296 0.0262 0.0277
17:01-18:00, Mon., 09 Oct. 0.0315 0.0272 0.0293
16:01-17:00, Mon., 09 Oct. 0.0322 0.0284 0.0301
15:01-16:00, Mon., 09 Oct. 0.0353 0.0289 0.0326
14:01-15:00, Mon., 09 Oct. 0.0383 0.0332 0.0357
13:01-14:00, Mon., 09 Oct. 0.0370 0.0327 0.0349
12:01-13:00, Mon., 09 Oct. 0.0402 0.0336 0.0371
11:01-12:00, Mon., 09 Oct. 0.0408 0.0349 0.0381
10:01-11:00, Mon., 09 Oct. 0.0395 0.0349 0.0376
09:01-10:00, Mon., 09 Oct. 0.0419 0.0363 0.0393
08:01-09:00, Mon., 09 Oct. 0.0419 0.0360 0.0384
07:01-08:00, Mon., 09 Oct. 0.0409 0.0369 0.0385
06:01-07:00, Mon., 09 Oct. 0.0398 0.0338 0.0372
05:01-06:00, Mon., 09 Oct. 0.0377 0.0320 0.0354
04:01-05:00, Mon., 09 Oct. 0.0381 0.0340 0.0361
03:01-04:00, Mon., 09 Oct. 0.0367 0.0328 0.0347
02:01-03:00, Mon., 09 Oct. 0.0370 0.0317 0.0349
01:01-02:00, Mon., 09 Oct. 0.0383 0.0336 0.0360
00:01-01:00, Mon., 09 Oct. 0.0390 0.0319 0.0347