Measurement results by the hour (Chofu) 3 Feb., 2014 - 9 Feb., 2014

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., 09 Feb. 0.0270 0.0220 0.0246
22:01-23:00, Sun., 09 Feb. 0.0261 0.0225 0.0242
21:01-22:00, Sun., 09 Feb. 0.0262 0.0225 0.0243
20:01-21:00, Sun., 09 Feb. 0.0252 0.0226 0.0241
19:01-20:00, Sun., 09 Feb. 0.0260 0.0222 0.0241
18:01-19:00, Sun., 09 Feb. 0.0255 0.0224 0.0239
17:01-18:00, Sun., 09 Feb. 0.0259 0.0225 0.0239
16:01-17:00, Sun., 09 Feb. 0.0256 0.0220 0.0235
15:01-16:00, Sun., 09 Feb. 0.0248 0.0218 0.0231
14:01-15:00, Sun., 09 Feb. 0.0243 0.0217 0.0231
13:01-14:00, Sun., 09 Feb. 0.0254 0.0219 0.0234
12:01-13:00, Sun., 09 Feb. 0.0249 0.0214 0.0232
11:01-12:00, Sun., 09 Feb. 0.0253 0.0212 0.0232
10:01-11:00, Sun., 09 Feb. 0.0246 0.0217 0.0231
09:01-10:00, Sun., 09 Feb. 0.0249 0.0214 0.0229
08:01-09:00, Sun., 09 Feb. 0.0246 0.0210 0.0227
07:01-08:00, Sun., 09 Feb. 0.0238 0.0206 0.0224
06:01-07:00, Sun., 09 Feb. 0.0245 0.0200 0.0224
05:01-06:00, Sun., 09 Feb. 0.0250 0.0207 0.0226
04:01-05:00, Sun., 09 Feb. 0.0250 0.0212 0.0232
03:01-04:00, Sun., 09 Feb. 0.0269 0.0227 0.0247
02:01-03:00, Sun., 09 Feb. 0.0274 0.0226 0.0245
01:01-02:00, Sun., 09 Feb. 0.0296 0.0242 0.0267
00:01-01:00, Sun., 09 Feb. 0.0313 0.0263 0.0282
23:01-24:00, Sat., 08 Feb. 0.0312 0.0270 0.0290
22:01-23:00, Sat., 08 Feb. 0.0325 0.0285 0.0303
21:01-22:00, Sat., 08 Feb. 0.0368 0.0308 0.0339
20:01-21:00, Sat., 08 Feb. 0.0387 0.0340 0.0361
19:01-20:00, Sat., 08 Feb. 0.0412 0.0344 0.0371
18:01-19:00, Sat., 08 Feb. 0.0404 0.0338 0.0361
17:01-18:00, Sat., 08 Feb. 0.0416 0.0344 0.0371
16:01-17:00, Sat., 08 Feb. 0.0422 0.0354 0.0378
15:01-16:00, Sat., 08 Feb. 0.0397 0.0351 0.0371
14:01-15:00, Sat., 08 Feb. 0.0397 0.0343 0.0365
13:01-14:00, Sat., 08 Feb. 0.0400 0.0343 0.0366
12:01-13:00, Sat., 08 Feb. 0.0413 0.0353 0.0370
11:01-12:00, Sat., 08 Feb. 0.0386 0.0352 0.0367
10:01-11:00, Sat., 08 Feb. 0.0386 0.0343 0.0360
09:01-10:00, Sat., 08 Feb. 0.0383 0.0338 0.0358
08:01-09:00, Sat., 08 Feb. 0.0372 0.0330 0.0355
07:01-08:00, Sat., 08 Feb. 0.0370 0.0329 0.0350
06:01-07:00, Sat., 08 Feb. 0.0372 0.0333 0.0351
05:01-06:00, Sat., 08 Feb. 0.0371 0.0344 0.0357
04:01-05:00, Sat., 08 Feb. 0.0371 0.0324 0.0349
03:01-04:00, Sat., 08 Feb. 0.0372 0.0335 0.0353
02:01-03:00, Sat., 08 Feb. 0.0368 0.0319 0.0342
01:01-02:00, Sat., 08 Feb. 0.0351 0.0311 0.0327
00:01-01:00, Sat., 08 Feb. 0.0340 0.0301 0.0322
23:01-24:00, Fri., 07 Feb. 0.0347 0.0306 0.0323
22:01-23:00, Fri., 07 Feb. 0.0348 0.0306 0.0324
21:01-22:00, Fri., 07 Feb. 0.0347 0.0308 0.0324
20:01-21:00, Fri., 07 Feb. 0.0343 0.0305 0.0324
19:01-20:00, Fri., 07 Feb. 0.0343 0.0300 0.0322
18:01-19:00, Fri., 07 Feb. 0.0344 0.0306 0.0323
17:01-18:00, Fri., 07 Feb. 0.0341 0.0303 0.0322
16:01-17:00, Fri., 07 Feb. 0.0335 0.0303 0.0320
15:01-16:00, Fri., 07 Feb. 0.0351 0.0301 0.0322
14:01-15:00, Fri., 07 Feb. 0.0343 0.0299 0.0320
13:01-14:00, Fri., 07 Feb. 0.0337 0.0304 0.0322
12:01-13:00, Fri., 07 Feb. 0.0351 0.0302 0.0323
11:01-12:00, Fri., 07 Feb. 0.0338 0.0307 0.0323
10:01-11:00, Fri., 07 Feb. 0.0345 0.0301 0.0320
09:01-10:00, Fri., 07 Feb. 0.0342 0.0309 0.0323
08:01-09:00, Fri., 07 Feb. 0.0344 0.0296 0.0324
07:01-08:00, Fri., 07 Feb. 0.0354 0.0305 0.0324
06:01-07:00, Fri., 07 Feb. 0.0344 0.0310 0.0327
05:01-06:00, Fri., 07 Feb. 0.0345 0.0302 0.0324
04:01-05:00, Fri., 07 Feb. 0.0345 0.0303 0.0323
03:01-04:00, Fri., 07 Feb. 0.0346 0.0306 0.0325
02:01-03:00, Fri., 07 Feb. 0.0355 0.0307 0.0327
01:01-02:00, Fri., 07 Feb. 0.0345 0.0299 0.0323
00:01-01:00, Fri., 07 Feb. 0.0341 0.0302 0.0323
23:01-24:00, Thu., 06 Feb. 0.0344 0.0309 0.0324
22:01-23:00, Thu., 06 Feb. 0.0348 0.0305 0.0324
21:01-22:00, Thu., 06 Feb. 0.0345 0.0301 0.0323
20:01-21:00, Thu., 06 Feb. 0.0351 0.0304 0.0322
19:01-20:00, Thu., 06 Feb. 0.0349 0.0305 0.0324
18:01-19:00, Thu., 06 Feb. 0.0344 0.0307 0.0323
17:01-18:00, Thu., 06 Feb. 0.0336 0.0298 0.0320
16:01-17:00, Thu., 06 Feb. 0.0339 0.0304 0.0322
15:01-16:00, Thu., 06 Feb. 0.0347 0.0298 0.0322
14:01-15:00, Thu., 06 Feb. 0.0354 0.0303 0.0327
13:01-14:00, Thu., 06 Feb. 0.0347 0.0303 0.0324
12:01-13:00, Thu., 06 Feb. 0.0341 0.0306 0.0324
11:01-12:00, Thu., 06 Feb. 0.0342 0.0310 0.0324
10:01-11:00, Thu., 06 Feb. 0.0345 0.0303 0.0323
09:01-10:00, Thu., 06 Feb. 0.0345 0.0304 0.0322
08:01-09:00, Thu., 06 Feb. 0.0363 0.0305 0.0321
07:01-08:00, Thu., 06 Feb. 0.0350 0.0302 0.0324
06:01-07:00, Thu., 06 Feb. 0.0345 0.0300 0.0326
05:01-06:00, Thu., 06 Feb. 0.0343 0.0306 0.0325
04:01-05:00, Thu., 06 Feb. 0.0345 0.0304 0.0326
03:01-04:00, Thu., 06 Feb. 0.0359 0.0309 0.0327
02:01-03:00, Thu., 06 Feb. 0.0343 0.0307 0.0326
01:01-02:00, Thu., 06 Feb. 0.0350 0.0300 0.0326
00:01-01:00, Thu., 06 Feb. 0.0334 0.0300 0.0322
23:01-24:00, Wed., 05 Feb. 0.0348 0.0295 0.0321
22:01-23:00, Wed., 05 Feb. 0.0351 0.0309 0.0325
21:01-22:00, Wed., 05 Feb. 0.0345 0.0305 0.0323
20:01-21:00, Wed., 05 Feb. 0.0343 0.0306 0.0320
19:01-20:00, Wed., 05 Feb. 0.0345 0.0297 0.0323
18:01-19:00, Wed., 05 Feb. 0.0344 0.0297 0.0324
17:01-18:00, Wed., 05 Feb. 0.0338 0.0303 0.0322
16:01-17:00, Wed., 05 Feb. 0.0342 0.0297 0.0324
15:01-16:00, Wed., 05 Feb. 0.0339 0.0301 0.0322
14:01-15:00, Wed., 05 Feb. 0.0343 0.0302 0.0324
13:01-14:00, Wed., 05 Feb. 0.0344 0.0298 0.0325
12:01-13:00, Wed., 05 Feb. 0.0347 0.0302 0.0326
11:01-12:00, Wed., 05 Feb. 0.0345 0.0299 0.0328
10:01-11:00, Wed., 05 Feb. 0.0349 0.0306 0.0324
09:01-10:00, Wed., 05 Feb. 0.0345 0.0299 0.0325
08:01-09:00, Wed., 05 Feb. 0.0347 0.0305 0.0322
07:01-08:00, Wed., 05 Feb. 0.0345 0.0286 0.0320
06:01-07:00, Wed., 05 Feb. 0.0345 0.0297 0.0321
05:01-06:00, Wed., 05 Feb. 0.0358 0.0307 0.0325
04:01-05:00, Wed., 05 Feb. 0.0338 0.0300 0.0322
03:01-04:00, Wed., 05 Feb. 0.0338 0.0303 0.0321
02:01-03:00, Wed., 05 Feb. 0.0344 0.0304 0.0321
01:01-02:00, Wed., 05 Feb. 0.0342 0.0295 0.0320
00:01-01:00, Wed., 05 Feb. 0.0334 0.0298 0.0317
23:01-24:00, Tue., 04 Feb. 0.0342 0.0300 0.0318
22:01-23:00, Tue., 04 Feb. 0.0340 0.0302 0.0318
21:01-22:00, Tue., 04 Feb. 0.0337 0.0293 0.0316
20:01-21:00, Tue., 04 Feb. 0.0351 0.0308 0.0324
19:01-20:00, Tue., 04 Feb. 0.0390 0.0317 0.0353
18:01-19:00, Tue., 04 Feb. 0.0542 0.0362 0.0445
17:01-18:00, Tue., 04 Feb. 0.0705 0.0527 0.0631
16:01-17:00, Tue., 04 Feb. 0.0664 0.0425 0.0550
15:01-16:00, Tue., 04 Feb. 0.0486 0.0391 0.0430
14:01-15:00, Tue., 04 Feb. 0.0479 0.0411 0.0441
13:01-14:00, Tue., 04 Feb. 0.0579 0.0441 0.0509
12:01-13:00, Tue., 04 Feb. 0.0585 0.0517 0.0548
11:01-12:00, Tue., 04 Feb. 0.0548 0.0381 0.0451
10:01-11:00, Tue., 04 Feb. 0.0451 0.0369 0.0413
09:01-10:00, Tue., 04 Feb. 0.0405 0.0343 0.0369
08:01-09:00, Tue., 04 Feb. 0.0468 0.0364 0.0409
07:01-08:00, Tue., 04 Feb. 0.0434 0.0335 0.0376
06:01-07:00, Tue., 04 Feb. 0.0373 0.0328 0.0355
05:01-06:00, Tue., 04 Feb. 0.0434 0.0354 0.0385
04:01-05:00, Tue., 04 Feb. 0.0455 0.0377 0.0410
03:01-04:00, Tue., 04 Feb. 0.0400 0.0336 0.0353
02:01-03:00, Tue., 04 Feb. 0.0368 0.0330 0.0350
01:01-02:00, Tue., 04 Feb. 0.0368 0.0330 0.0349
00:01-01:00, Tue., 04 Feb. 0.0378 0.0334 0.0350
23:01-24:00, Mon., 03 Feb. 0.0372 0.0330 0.0348
22:01-23:00, Mon., 03 Feb. 0.0369 0.0325 0.0350
21:01-22:00, Mon., 03 Feb. 0.0373 0.0326 0.0346
20:01-21:00, Mon., 03 Feb. 0.0366 0.0315 0.0337
19:01-20:00, Mon., 03 Feb. 0.0357 0.0310 0.0337
18:01-19:00, Mon., 03 Feb. 0.0355 0.0314 0.0336
17:01-18:00, Mon., 03 Feb. 0.0350 0.0316 0.0334
16:01-17:00, Mon., 03 Feb. 0.0350 0.0312 0.0331
15:01-16:00, Mon., 03 Feb. 0.0358 0.0313 0.0336
14:01-15:00, Mon., 03 Feb. 0.0361 0.0315 0.0336
13:01-14:00, Mon., 03 Feb. 0.0360 0.0319 0.0336
12:01-13:00, Mon., 03 Feb. 0.0369 0.0325 0.0341
11:01-12:00, Mon., 03 Feb. 0.0369 0.0330 0.0347
10:01-11:00, Mon., 03 Feb. 0.0364 0.0317 0.0345
09:01-10:00, Mon., 03 Feb. 0.0370 0.0327 0.0353
08:01-09:00, Mon., 03 Feb. 0.0384 0.0322 0.0357
07:01-08:00, Mon., 03 Feb. 0.0393 0.0340 0.0365
06:01-07:00, Mon., 03 Feb. 0.0381 0.0343 0.0362
05:01-06:00, Mon., 03 Feb. 0.0385 0.0340 0.0360
04:01-05:00, Mon., 03 Feb. 0.0387 0.0340 0.0360
03:01-04:00, Mon., 03 Feb. 0.0383 0.0337 0.0356
02:01-03:00, Mon., 03 Feb. 0.0377 0.0344 0.0358
01:01-02:00, Mon., 03 Feb. 0.0372 0.0325 0.0353
00:01-01:00, Mon., 03 Feb. 0.0368 0.0329 0.0352