Measurement results by the hour (Chofu) 25 Feb., 2019 - 3 Mar., 2019

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., 03 Mar. 0.0449 0.0379 0.0415
22:01-23:00, Sun., 03 Mar. 0.0433 0.0348 0.0388
21:01-22:00, Sun., 03 Mar. 0.0367 0.0310 0.0337
20:01-21:00, Sun., 03 Mar. 0.0343 0.0293 0.0319
19:01-20:00, Sun., 03 Mar. 0.0326 0.0279 0.0307
18:01-19:00, Sun., 03 Mar. 0.0353 0.0303 0.0327
17:01-18:00, Sun., 03 Mar. 0.0378 0.0321 0.0348
16:01-17:00, Sun., 03 Mar. 0.0410 0.0347 0.0369
15:01-16:00, Sun., 03 Mar. 0.0406 0.0346 0.0376
14:01-15:00, Sun., 03 Mar. 0.0395 0.0344 0.0367
13:01-14:00, Sun., 03 Mar. 0.0405 0.0353 0.0369
12:01-13:00, Sun., 03 Mar. 0.0423 0.0360 0.0388
11:01-12:00, Sun., 03 Mar. 0.0405 0.0349 0.0372
10:01-11:00, Sun., 03 Mar. 0.0414 0.0345 0.0371
09:01-10:00, Sun., 03 Mar. 0.0406 0.0352 0.0371
08:01-09:00, Sun., 03 Mar. 0.0395 0.0339 0.0363
07:01-08:00, Sun., 03 Mar. 0.0355 0.0293 0.0324
06:01-07:00, Sun., 03 Mar. 0.0308 0.0271 0.0288
05:01-06:00, Sun., 03 Mar. 0.0310 0.0267 0.0287
04:01-05:00, Sun., 03 Mar. 0.0312 0.0271 0.0289
03:01-04:00, Sun., 03 Mar. 0.0310 0.0270 0.0290
02:01-03:00, Sun., 03 Mar. 0.0311 0.0269 0.0288
01:01-02:00, Sun., 03 Mar. 0.0300 0.0268 0.0285
00:01-01:00, Sun., 03 Mar. 0.0303 0.0260 0.0282
23:01-24:00, Sat., 02 Mar. 0.0304 0.0261 0.0281
22:01-23:00, Sat., 02 Mar. 0.0298 0.0257 0.0281
21:01-22:00, Sat., 02 Mar. 0.0300 0.0260 0.0282
20:01-21:00, Sat., 02 Mar. 0.0306 0.0258 0.0280
19:01-20:00, Sat., 02 Mar. 0.0307 0.0251 0.0281
18:01-19:00, Sat., 02 Mar. 0.0294 0.0260 0.0277
17:01-18:00, Sat., 02 Mar. 0.0295 0.0261 0.0277
16:01-17:00, Sat., 02 Mar. 0.0300 0.0265 0.0280
15:01-16:00, Sat., 02 Mar. 0.0297 0.0261 0.0278
14:01-15:00, Sat., 02 Mar. 0.0298 0.0255 0.0279
13:01-14:00, Sat., 02 Mar. 0.0314 0.0262 0.0280
12:01-13:00, Sat., 02 Mar. 0.0300 0.0263 0.0280
11:01-12:00, Sat., 02 Mar. 0.0303 0.0265 0.0282
10:01-11:00, Sat., 02 Mar. 0.0298 0.0255 0.0281
09:01-10:00, Sat., 02 Mar. 0.0307 0.0268 0.0286
08:01-09:00, Sat., 02 Mar. 0.0311 0.0267 0.0288
07:01-08:00, Sat., 02 Mar. 0.0308 0.0262 0.0285
06:01-07:00, Sat., 02 Mar. 0.0308 0.0264 0.0288
05:01-06:00, Sat., 02 Mar. 0.0305 0.0262 0.0282
04:01-05:00, Sat., 02 Mar. 0.0304 0.0262 0.0283
03:01-04:00, Sat., 02 Mar. 0.0306 0.0264 0.0283
02:01-03:00, Sat., 02 Mar. 0.0293 0.0262 0.0280
01:01-02:00, Sat., 02 Mar. 0.0301 0.0265 0.0282
00:01-01:00, Sat., 02 Mar. 0.0297 0.0257 0.0278
23:01-24:00, Fri., 01 Mar. 0.0300 0.0261 0.0281
22:01-23:00, Fri., 01 Mar. 0.0302 0.0261 0.0280
21:01-22:00, Fri., 01 Mar. 0.0300 0.0263 0.0282
20:01-21:00, Fri., 01 Mar. 0.0302 0.0264 0.0282
19:01-20:00, Fri., 01 Mar. 0.0301 0.0261 0.0279
18:01-19:00, Fri., 01 Mar. 0.0303 0.0268 0.0281
17:01-18:00, Fri., 01 Mar. 0.0294 0.0257 0.0279
16:01-17:00, Fri., 01 Mar. 0.0295 0.0258 0.0278
15:01-16:00, Fri., 01 Mar. 0.0298 0.0259 0.0279
14:01-15:00, Fri., 01 Mar. 0.0304 0.0257 0.0281
13:01-14:00, Fri., 01 Mar. 0.0300 0.0255 0.0279
12:01-13:00, Fri., 01 Mar. 0.0305 0.0263 0.0280
11:01-12:00, Fri., 01 Mar. 0.0303 0.0269 0.0285
10:01-11:00, Fri., 01 Mar. 0.0310 0.0262 0.0288
09:01-10:00, Fri., 01 Mar. 0.0313 0.0268 0.0290
08:01-09:00, Fri., 01 Mar. 0.0336 0.0282 0.0311
07:01-08:00, Fri., 01 Mar. 0.0366 0.0323 0.0344
06:01-07:00, Fri., 01 Mar. 0.0352 0.0303 0.0325
05:01-06:00, Fri., 01 Mar. 0.0363 0.0306 0.0336
04:01-05:00, Fri., 01 Mar. 0.0366 0.0309 0.0332
03:01-04:00, Fri., 01 Mar. 0.0340 0.0289 0.0319
02:01-03:00, Fri., 01 Mar. 0.0329 0.0288 0.0309
01:01-02:00, Fri., 01 Mar. 0.0350 0.0303 0.0326
00:01-01:00, Fri., 01 Mar. 0.0352 0.0284 0.0309
23:01-24:00, Thu., 28 Feb. 0.0336 0.0276 0.0312
22:01-23:00, Thu., 28 Feb. 0.0325 0.0278 0.0300
21:01-22:00, Thu., 28 Feb. 0.0350 0.0285 0.0319
20:01-21:00, Thu., 28 Feb. 0.0427 0.0336 0.0376
19:01-20:00, Thu., 28 Feb. 0.0490 0.0380 0.0429
18:01-19:00, Thu., 28 Feb. 0.0520 0.0443 0.0479
17:01-18:00, Thu., 28 Feb. 0.0504 0.0420 0.0461
16:01-17:00, Thu., 28 Feb. 0.0507 0.0436 0.0469
15:01-16:00, Thu., 28 Feb. 0.0532 0.0461 0.0493
14:01-15:00, Thu., 28 Feb. 0.0539 0.0468 0.0501
13:01-14:00, Thu., 28 Feb. 0.0523 0.0444 0.0482
12:01-13:00, Thu., 28 Feb. 0.0480 0.0404 0.0445
11:01-12:00, Thu., 28 Feb. 0.0453 0.0364 0.0413
10:01-11:00, Thu., 28 Feb. 0.0489 0.0403 0.0441
09:01-10:00, Thu., 28 Feb. 0.0488 0.0363 0.0413
08:01-09:00, Thu., 28 Feb. 0.0413 0.0351 0.0377
07:01-08:00, Thu., 28 Feb. 0.0444 0.0365 0.0401
06:01-07:00, Thu., 28 Feb. 0.0433 0.0291 0.0361
05:01-06:00, Thu., 28 Feb. 0.0315 0.0275 0.0298
04:01-05:00, Thu., 28 Feb. 0.0318 0.0269 0.0293
03:01-04:00, Thu., 28 Feb. 0.0315 0.0273 0.0294
02:01-03:00, Thu., 28 Feb. 0.0316 0.0276 0.0297
01:01-02:00, Thu., 28 Feb. 0.0321 0.0282 0.0302
00:01-01:00, Thu., 28 Feb. 0.0344 0.0293 0.0314
23:01-24:00, Wed., 27 Feb. 0.0332 0.0301 0.0315
22:01-23:00, Wed., 27 Feb. 0.0349 0.0305 0.0329
21:01-22:00, Wed., 27 Feb. 0.0350 0.0306 0.0334
20:01-21:00, Wed., 27 Feb. 0.0338 0.0281 0.0308
19:01-20:00, Wed., 27 Feb. 0.0308 0.0270 0.0287
18:01-19:00, Wed., 27 Feb. 0.0305 0.0267 0.0288
17:01-18:00, Wed., 27 Feb. 0.0305 0.0269 0.0287
16:01-17:00, Wed., 27 Feb. 0.0307 0.0266 0.0288
15:01-16:00, Wed., 27 Feb. 0.0308 0.0265 0.0290
14:01-15:00, Wed., 27 Feb. 0.0306 0.0267 0.0288
13:01-14:00, Wed., 27 Feb. 0.0304 0.0271 0.0288
12:01-13:00, Wed., 27 Feb. 0.0308 0.0275 0.0289
11:01-12:00, Wed., 27 Feb. 0.0311 0.0271 0.0291
10:01-11:00, Wed., 27 Feb. 0.0311 0.0274 0.0291
09:01-10:00, Wed., 27 Feb. 0.0311 0.0273 0.0291
08:01-09:00, Wed., 27 Feb. 0.0311 0.0268 0.0291
07:01-08:00, Wed., 27 Feb. 0.0310 0.0269 0.0294
06:01-07:00, Wed., 27 Feb. 0.0312 0.0277 0.0293
05:01-06:00, Wed., 27 Feb. 0.0308 0.0268 0.0289
04:01-05:00, Wed., 27 Feb. 0.0305 0.0272 0.0288
03:01-04:00, Wed., 27 Feb. 0.0310 0.0270 0.0288
02:01-03:00, Wed., 27 Feb. 0.0315 0.0272 0.0291
01:01-02:00, Wed., 27 Feb. 0.0316 0.0272 0.0289
00:01-01:00, Wed., 27 Feb. 0.0306 0.0265 0.0286
23:01-24:00, Tue., 26 Feb. 0.0304 0.0270 0.0288
22:01-23:00, Tue., 26 Feb. 0.0315 0.0273 0.0292
21:01-22:00, Tue., 26 Feb. 0.0312 0.0273 0.0290
20:01-21:00, Tue., 26 Feb. 0.0314 0.0273 0.0290
19:01-20:00, Tue., 26 Feb. 0.0305 0.0273 0.0291
18:01-19:00, Tue., 26 Feb. 0.0307 0.0269 0.0290
17:01-18:00, Tue., 26 Feb. 0.0304 0.0278 0.0292
16:01-17:00, Tue., 26 Feb. 0.0317 0.0272 0.0291
15:01-16:00, Tue., 26 Feb. 0.0315 0.0274 0.0293
14:01-15:00, Tue., 26 Feb. 0.0311 0.0270 0.0290
13:01-14:00, Tue., 26 Feb. 0.0315 0.0275 0.0291
12:01-13:00, Tue., 26 Feb. 0.0322 0.0269 0.0294
11:01-12:00, Tue., 26 Feb. 0.0311 0.0280 0.0295
10:01-11:00, Tue., 26 Feb. 0.0311 0.0282 0.0294
09:01-10:00, Tue., 26 Feb. 0.0313 0.0275 0.0295
08:01-09:00, Tue., 26 Feb. 0.0312 0.0267 0.0293
07:01-08:00, Tue., 26 Feb. 0.0312 0.0273 0.0294
06:01-07:00, Tue., 26 Feb. 0.0311 0.0272 0.0292
05:01-06:00, Tue., 26 Feb. 0.0320 0.0273 0.0293
04:01-05:00, Tue., 26 Feb. 0.0309 0.0272 0.0293
03:01-04:00, Tue., 26 Feb. 0.0308 0.0263 0.0291
02:01-03:00, Tue., 26 Feb. 0.0317 0.0277 0.0294
01:01-02:00, Tue., 26 Feb. 0.0313 0.0273 0.0293
00:01-01:00, Tue., 26 Feb. 0.0315 0.0267 0.0292
23:01-24:00, Mon., 25 Feb. 0.0319 0.0272 0.0291
22:01-23:00, Mon., 25 Feb. 0.0314 0.0277 0.0292
21:01-22:00, Mon., 25 Feb. 0.0320 0.0273 0.0296
20:01-21:00, Mon., 25 Feb. 0.0320 0.0273 0.0294
19:01-20:00, Mon., 25 Feb. 0.0313 0.0267 0.0291
18:01-19:00, Mon., 25 Feb. 0.0307 0.0267 0.0289
17:01-18:00, Mon., 25 Feb. 0.0305 0.0269 0.0287
16:01-17:00, Mon., 25 Feb. 0.0304 0.0274 0.0289
15:01-16:00, Mon., 25 Feb. 0.0321 0.0274 0.0295
14:01-15:00, Mon., 25 Feb. 0.0314 0.0278 0.0293
13:01-14:00, Mon., 25 Feb. 0.0315 0.0278 0.0298
12:01-13:00, Mon., 25 Feb. 0.0329 0.0284 0.0305
11:01-12:00, Mon., 25 Feb. 0.0336 0.0285 0.0306
10:01-11:00, Mon., 25 Feb. 0.0337 0.0293 0.0313
09:01-10:00, Mon., 25 Feb. 0.0330 0.0289 0.0311
08:01-09:00, Mon., 25 Feb. 0.0324 0.0286 0.0310
07:01-08:00, Mon., 25 Feb. 0.0332 0.0289 0.0309
06:01-07:00, Mon., 25 Feb. 0.0328 0.0285 0.0305
05:01-06:00, Mon., 25 Feb. 0.0321 0.0280 0.0301
04:01-05:00, Mon., 25 Feb. 0.0325 0.0278 0.0301
03:01-04:00, Mon., 25 Feb. 0.0324 0.0278 0.0301
02:01-03:00, Mon., 25 Feb. 0.0327 0.0278 0.0306
01:01-02:00, Mon., 25 Feb. 0.0324 0.0277 0.0300
00:01-01:00, Mon., 25 Feb. 0.0314 0.0279 0.0294