Measurement results of radiation doses in the air / Measurement results by the day (Chofu)

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
Mon., 31 Dec.,2012 0.0425 0.0327 0.0360
Sun., 30 Dec.,2012 0.0559 0.0323 0.0405
Sat., 29 Dec.,2012 0.0447 0.0323 0.0359
Fri., 28 Dec.,2012 0.0466 0.0337 0.0386
Thu., 27 Dec.,2012 0.0413 0.0326 0.0359
Wed., 26 Dec.,2012 0.0412 0.0329 0.0363
Tue., 25 Dec.,2012 0.0401 0.0331 0.0363
Mon., 24 Dec.,2012 0.0424 0.0330 0.0360
Sun., 23 Dec.,2012 0.0392 0.0327 0.0357
Sat., 22 Dec.,2012 0.0568 0.0325 0.0399
Fri., 21 Dec.,2012 0.0419 0.0328 0.0367
Thu., 20 Dec.,2012 0.0465 0.0329 0.0366
Wed., 19 Dec.,2012 0.0404 0.0328 0.0361
Tue., 18 Dec.,2012 0.0411 0.0333 0.0365
Mon., 17 Dec.,2012 0.0499 0.0338 0.0380
Sun., 16 Dec.,2012 0.0562 0.0329 0.0378
Sat., 15 Dec.,2012 0.0450 0.0340 0.0380
Fri., 14 Dec.,2012 0.0427 0.0328 0.0371
Thu., 13 Dec.,2012 0.0426 0.0326 0.0367
Wed., 12 Dec.,2012 0.0429 0.0329 0.0370
Tue., 11 Dec.,2012 0.0419 0.0334 0.0371
Mon., 10 Dec.,2012 0.0422 0.0334 0.0367
Sun., 09 Dec.,2012 0.0405 0.0331 0.0362
Sat., 08 Dec.,2012 0.0422 0.0326 0.0363
Fri., 07 Dec.,2012 0.0418 0.0327 0.0361
Thu., 06 Dec.,2012 0.0417 0.0329 0.0357
Wed., 05 Dec.,2012 0.0409 0.0331 0.0360
Tue., 04 Dec.,2012 0.0525 0.0325 0.0366
Mon., 03 Dec.,2012 0.0422 0.0328 0.0361
Sun., 02 Dec.,2012 0.0474 0.0319 0.0365
Sat., 01 Dec.,2012 0.0642 0.0334 0.0382
Fri., 30 Nov.,2012 0.0409 0.0338 0.0366
Thu., 29 Nov.,2012 0.0555 0.0337 0.0382
Wed., 28 Nov.,2012 0.0409 0.0330 0.0362
Tue., 27 Nov.,2012 0.0410 0.0323 0.0359
Mon., 26 Nov.,2012 0.0665 0.0332 0.0423
Sun., 25 Nov.,2012 0.0420 0.0323 0.0357
Sat., 24 Nov.,2012 0.0434 0.0324 0.0363
Fri., 23 Nov.,2012 0.0554 0.0330 0.0393
Thu., 22 Nov.,2012 0.0414 0.0327 0.0366
Wed., 21 Nov.,2012 0.0402 0.0323 0.0360
Tue., 20 Nov.,2012 0.0424 0.0333 0.0368
Mon., 19 Nov.,2012 0.0435 0.0331 0.0361
Sun., 18 Nov.,2012 0.0389 0.0327 0.0356
Sat., 17 Nov.,2012 0.0721 0.0339 0.0423
Fri., 16 Nov.,2012 0.0394 0.0321 0.0355
Thu., 15 Nov.,2012 0.0434 0.0326 0.0370
Wed., 14 Nov.,2012 0.0404 0.0333 0.0358
Tue., 13 Nov.,2012 0.0403 0.0329 0.0359
Mon., 12 Nov.,2012 0.0485 0.0318 0.0358
Sun., 11 Nov.,2012 0.0488 0.0330 0.0387
Sat., 10 Nov.,2012 0.0391 0.0321 0.0354
Fri., 09 Nov.,2012 0.0411 0.0325 0.0360
Thu., 08 Nov.,2012 0.0415 0.0322 0.0363
Wed., 07 Nov.,2012 0.0414 0.0322 0.0358
Tue., 06 Nov.,2012 0.0562 0.0333 0.0396
Mon., 05 Nov.,2012 0.0466 0.0341 0.0373
Sun., 04 Nov.,2012 0.0423 0.0324 0.0361
Sat., 03 Nov.,2012 0.0390 0.0333 0.0358
Fri., 02 Nov.,2012 0.0412 0.0326 0.0363
Thu., 01 Nov.,2012 0.0430 0.0332 0.0371
Wed., 31 Oct.,2012 0.0423 0.0332 0.0368
Tue., 30 Oct.,2012 0.0414 0.0325 0.0365
Mon., 29 Oct.,2012 0.0627 0.0324 0.0378
Sun., 28 Oct.,2012 0.0557 0.0338 0.0406
Sat., 27 Oct.,2012 0.0403 0.0326 0.0360
Fri., 26 Oct.,2012 0.0409 0.0326 0.0361
Thu., 25 Oct.,2012 0.0401 0.0323 0.0360
Wed., 24 Oct.,2012 0.0387 0.0324 0.0351
Tue., 23 Oct.,2012 0.0568 0.0326 0.0383
Mon., 22 Oct.,2012 0.0416 0.0324 0.0362
Sun., 21 Oct.,2012 0.0412 0.0329 0.0360
Sat., 20 Oct.,2012 0.0394 0.0325 0.0356
Fri., 19 Oct.,2012 0.0608 0.0322 0.0383
Thu., 18 Oct.,2012 0.0606 0.0335 0.0388
Wed., 17 Oct.,2012 0.0538 0.0342 0.0384
Tue., 16 Oct.,2012 0.0401 0.0335 0.0363
Mon., 15 Oct.,2012 0.0415 0.0334 0.0364
Sun., 14 Oct.,2012 0.0436 0.0333 0.0371
Sat., 13 Oct.,2012 0.0413 0.0328 0.0361
Fri., 12 Oct.,2012 0.0396 0.0324 0.0357
Thu., 11 Oct.,2012 0.0390 0.0320 0.0353
Wed., 10 Oct.,2012 0.0386 0.0317 0.0351
Tue., 09 Oct.,2012 0.0386 0.0321 0.0353
Mon., 08 Oct.,2012 0.0402 0.0323 0.0353
Sun., 07 Oct.,2012 0.0509 0.0310 0.0384
Sat., 06 Oct.,2012 0.0387 0.0320 0.0349
Fri., 05 Oct.,2012 0.0373 0.0314 0.0346
Thu., 04 Oct.,2012 0.0443 0.0315 0.0358
Wed., 03 Oct.,2012 0.0450 0.0324 0.0366
Tue., 02 Oct.,2012 0.0388 0.0320 0.0350
Mon., 01 Oct.,2012 0.0388 0.0314 0.0347
Sun., 30 Sep.,2012 0.0449 0.0327 0.0364
Sat., 29 Sep.,2012 0.0397 0.0316 0.0355
Fri., 28 Sep.,2012 0.0389 0.0321 0.0351
Thu., 27 Sep.,2012 0.0383 0.0320 0.0349
Wed., 26 Sep.,2012 0.0381 0.0314 0.0347
Tue., 25 Sep.,2012 0.0501 0.0313 0.0361
Mon., 24 Sep.,2012 0.0402 0.0315 0.0346
Sun., 23 Sep.,2012 0.0628 0.0320 0.0455
Sat., 22 Sep.,2012 0.0624 0.0317 0.0361
Fri., 21 Sep.,2012 0.0520 0.0312 0.0360
Thu., 20 Sep.,2012 0.0404 0.0315 0.0350
Wed., 19 Sep.,2012 0.0406 0.0314 0.0345
Tue., 18 Sep.,2012 0.0407 0.0325 0.0362
Mon., 17 Sep.,2012 0.0407 0.0330 0.0362
Sun., 16 Sep.,2012 0.0452 0.0341 0.0380
Sat., 15 Sep.,2012 0.0447 0.0347 0.0381
Fri., 14 Sep.,2012 0.0449 0.0345 0.0385
Thu., 13 Sep.,2012 0.0451 0.0349 0.0385
Wed., 12 Sep.,2012 0.0433 0.0349 0.0381
Tue., 11 Sep.,2012 0.0464 0.0344 0.0379
Mon., 10 Sep.,2012 0.0433 0.0342 0.0373
Sun., 09 Sep.,2012 0.0411 0.0336 0.0367
Sat., 08 Sep.,2012 0.0424 0.0338 0.0370
Fri., 07 Sep.,2012 0.0428 0.0339 0.0373
Thu., 06 Sep.,2012 0.0504 0.0333 0.0389
Wed., 05 Sep.,2012 0.0413 0.0340 0.0369
Tue., 04 Sep.,2012 0.0425 0.0331 0.0363
Mon., 03 Sep.,2012 0.0420 0.0334 0.0362
Sun., 02 Sep.,2012 0.0450 0.0327 0.0369
Sat., 01 Sep.,2012 0.0457 0.0331 0.0378
Fri., 31 Aug.,2012 0.0471 0.0356 0.0393
Thu., 30 Aug.,2012 0.0465 0.0353 0.0400
Wed., 29 Aug.,2012 0.0451 0.0351 0.0394
Tue., 28 Aug.,2012 0.0456 0.0350 0.0392
Mon., 27 Aug.,2012 0.0456 0.0351 0.0393
Sun., 26 Aug.,2012 0.0456 0.0348 0.0391
Sat., 25 Aug.,2012 0.0466 0.0352 0.0390
Fri., 24 Aug.,2012 0.0453 0.0348 0.0389
Thu., 23 Aug.,2012 0.0439 0.0354 0.0386
Wed., 22 Aug.,2012 0.0433 0.0350 0.0384
Tue., 21 Aug.,2012 0.0452 0.0347 0.0389
Mon., 20 Aug.,2012 0.0449 0.0346 0.0384
Sun., 19 Aug.,2012 0.0423 0.0345 0.0374
Sat., 18 Aug.,2012 0.0474 0.0347 0.0383
Fri., 17 Aug.,2012 0.0496 0.0350 0.0394
Thu., 16 Aug.,2012 0.0423 0.0349 0.0381
Wed., 15 Aug.,2012 0.0434 0.0348 0.0380
Tue., 14 Aug.,2012 0.0488 0.0350 0.0395
Mon., 13 Aug.,2012 0.0451 0.0353 0.0388
Sun., 12 Aug.,2012 0.0438 0.0351 0.0387
Sat., 11 Aug.,2012 0.0446 0.0353 0.0389
Fri., 10 Aug.,2012 0.0429 0.0349 0.0384
Thu., 09 Aug.,2012 0.0440 0.0352 0.0383
Wed., 08 Aug.,2012 0.0432 0.0347 0.0381
Tue., 07 Aug.,2012 0.0447 0.0339 0.0384
Mon., 06 Aug.,2012 0.0421 0.0345 0.0376
Sun., 05 Aug.,2012 0.0427 0.0349 0.0376
Sat., 04 Aug.,2012 0.0426 0.0345 0.0378
Fri., 03 Aug.,2012 0.0439 0.0342 0.0381
Thu., 02 Aug.,2012 0.0422 0.0348 0.0378
Wed., 01 Aug.,2012 0.0436 0.0345 0.0380
Tue., 31 Jul.,2012 0.0428 0.0351 0.0378
Mon., 30 Jul.,2012 0.0431 0.0350 0.0377
Sun., 29 Jul.,2012 0.0442 0.0346 0.0380
Sat., 28 Jul.,2012 0.0425 0.0343 0.0380
Fri., 27 Jul.,2012 0.0431 0.0349 0.0382
Thu., 26 Jul.,2012 0.0445 0.0354 0.0389
Wed., 25 Jul.,2012 0.0441 0.0346 0.0380
Tue., 24 Jul.,2012 0.0411 0.0336 0.0369
Mon., 23 Jul.,2012 0.0406 0.0338 0.0362
Sun., 22 Jul.,2012 0.0404 0.0329 0.0363
Sat., 21 Jul.,2012 0.0513 0.0330 0.0369
Fri., 20 Jul.,2012 0.0645 0.0332 0.0396
Thu., 19 Jul.,2012 0.0433 0.0350 0.0382
Wed., 18 Jul.,2012 0.0420 0.0340 0.0374
Tue., 17 Jul.,2012 0.0423 0.0341 0.0369
Mon., 16 Jul.,2012 0.0402 0.0333 0.0364
Sun., 15 Jul.,2012 0.0405 0.0328 0.0360
Sat., 14 Jul.,2012 0.0653 0.0338 0.0398
Fri., 13 Jul.,2012 0.0608 0.0337 0.0388
Thu., 12 Jul.,2012 0.0628 0.0344 0.0398
Wed., 11 Jul.,2012 0.0413 0.0341 0.0370
Tue., 10 Jul.,2012 0.0415 0.0341 0.0367
Mon., 09 Jul.,2012 0.0410 0.0338 0.0363
Sun., 08 Jul.,2012 0.0427 0.0330 0.0368
Sat., 07 Jul.,2012 0.0603 0.0343 0.0417
Fri., 06 Jul.,2012 0.0629 0.0346 0.0400
Thu., 05 Jul.,2012 0.0428 0.0348 0.0376
Wed., 04 Jul.,2012 0.0435 0.0339 0.0374
Tue., 03 Jul.,2012 0.0524 0.0340 0.0389
Mon., 02 Jul.,2012 0.0446 0.0338 0.0373
Sun., 01 Jul.,2012 0.0509 0.0350 0.0395
Sat., 30 Jun.,2012 0.0425 0.0346 0.0375
Fri., 29 Jun.,2012 0.0418 0.0346 0.0372
Thu., 28 Jun.,2012 0.0418 0.0338 0.0374
Wed., 27 Jun.,2012 0.0415 0.0342 0.0370
Tue., 26 Jun.,2012 0.0418 0.0336 0.0367
Mon., 25 Jun.,2012 0.0414 0.0339 0.0366
Sun., 24 Jun.,2012 0.0421 0.0336 0.0367
Sat., 23 Jun.,2012 0.0405 0.0339 0.0365
Fri., 22 Jun.,2012 0.0541 0.0338 0.0397
Thu., 21 Jun.,2012 0.0414 0.0341 0.0368
Wed., 20 Jun.,2012 0.0458 0.0333 0.0368
Tue., 19 Jun.,2012 0.0494 0.0334 0.0379
Mon., 18 Jun.,2012 0.0419 0.0344 0.0371
Sun., 17 Jun.,2012 0.0420 0.0340 0.0370
Sat., 16 Jun.,2012 0.0430 0.0337 0.0373
Fri., 15 Jun.,2012 0.0411 0.0336 0.0368
Thu., 14 Jun.,2012 0.0407 0.0339 0.0365
Wed., 13 Jun.,2012 0.0417 0.0337 0.0365
Tue., 12 Jun.,2012 0.0516 0.0340 0.0403
Mon., 11 Jun.,2012 0.0428 0.0337 0.0367
Sun., 10 Jun.,2012 0.0432 0.0341 0.0368
Sat., 09 Jun.,2012 0.0527 0.0343 0.0411
Fri., 08 Jun.,2012 0.0502 0.0354 0.0387
Thu., 07 Jun.,2012 0.0434 0.0344 0.0374
Wed., 06 Jun.,2012 0.0474 0.0347 0.0393
Tue., 05 Jun.,2012 0.0438 0.0351 0.0382
Mon., 04 Jun.,2012 0.0429 0.0349 0.0381
Sun., 03 Jun.,2012 0.0433 0.0347 0.0380
Sat., 02 Jun.,2012 0.0439 0.0346 0.0388
Fri., 01 Jun.,2012 0.0435 0.0340 0.0381
Thu., 31 May.,2012 0.0421 0.0346 0.0375
Wed., 30 May.,2012 0.0482 0.0344 0.0376
Tue., 29 May.,2012 0.0560 0.0347 0.0384
Mon., 28 May.,2012 0.0556 0.0344 0.0393
Sun., 27 May.,2012 0.0425 0.0344 0.0379
Sat., 26 May.,2012 0.0425 0.0350 0.0378
Fri., 25 May.,2012 0.0504 0.0350 0.0394
Thu., 24 May.,2012 0.0414 0.0345 0.0372
Wed., 23 May.,2012 0.0411 0.0339 0.0367
Tue., 22 May.,2012 0.0502 0.0350 0.0403
Mon., 21 May.,2012 0.0432 0.0346 0.0380
Sun., 20 May.,2012 0.0443 0.0349 0.0376
Sat., 19 May.,2012 0.0421 0.0343 0.0372
Fri., 18 May.,2012 0.0619 0.0344 0.0399
Thu., 17 May.,2012 0.0443 0.0348 0.0384
Wed., 16 May.,2012 0.0417 0.0344 0.0374
Tue., 15 May.,2012 0.0503 0.0341 0.0393
Mon., 14 May.,2012 0.0437 0.0345 0.0379
Sun., 13 May.,2012 0.0429 0.0342 0.0374
Sat., 12 May.,2012 0.0414 0.0342 0.0370
Fri., 11 May.,2012 0.0414 0.0338 0.0368
Thu., 10 May.,2012 0.0568 0.0341 0.0387
Wed., 09 May.,2012 0.0685 0.0352 0.0408
Tue., 08 May.,2012 0.0423 0.0343 0.0373
Mon., 07 May.,2012 0.0415 0.0338 0.0371
Sun., 06 May.,2012 0.0512 0.0343 0.0380
Sat., 05 May.,2012 0.0411 0.0333 0.0366
Fri., 04 May.,2012 0.0630 0.0335 0.0406
Thu., 03 May.,2012 0.0695 0.0338 0.0477
Wed., 02 May.,2012 0.0480 0.0337 0.0388
Tue., 01 May.,2012 0.0418 0.0334 0.0366
Mon., 30 Apr.,2012 0.0417 0.0339 0.0366
Sun., 29 Apr.,2012 0.0421 0.0342 0.0370
Sat., 28 Apr.,2012 0.0414 0.0334 0.0368
Fri., 27 Apr.,2012 0.0508 0.0354 0.0415
Thu., 26 Apr.,2012 0.0508 0.0344 0.0390
Wed., 25 Apr.,2012 0.0430 0.0338 0.0368
Tue., 24 Apr.,2012 0.0483 0.0336 0.0374
Mon., 23 Apr.,2012 0.0478 0.0346 0.0389
Sun., 22 Apr.,2012 0.0473 0.0348 0.0388
Sat., 21 Apr.,2012 0.0410 0.0333 0.0370
Fri., 20 Apr.,2012 0.0427 0.0344 0.0371
Thu., 19 Apr.,2012 0.0435 0.0339 0.0370
Wed., 18 Apr.,2012 0.0423 0.0341 0.0371
Tue., 17 Apr.,2012 0.0504 0.0344 0.0380
Mon., 16 Apr.,2012 0.0414 0.0339 0.0367
Sun., 15 Apr.,2012 0.0414 0.0338 0.0367
Sat., 14 Apr.,2012 0.0633 0.0354 0.0492
Fri., 13 Apr.,2012 0.0507 0.0342 0.0385
Thu., 12 Apr.,2012 0.0413 0.0336 0.0368
Wed., 11 Apr.,2012 0.0491 0.0347 0.0391

Past data