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

News about this monitoring post

〇Temporary suspension of the monitoring post (Hachioji station) (October 27th, December 22nd)
Due to a power outage caused by facility equipment inspection, the monitoring post (Hachioji station) will suspend measurements on the following dates and times.
1. Sunday, October 27th, 2024, from around 7:00 a.m. to around 2:00 p.m.
2. Sunday, December 22nd, 2024, from around 7:00 a.m. to around 7:00 p.m.

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 0.0429 0.0344 0.0373
Sun., 30 Dec.,2012 0.0547 0.0347 0.0414
Sat., 29 Dec.,2012 0.0485 0.0332 0.0374
Fri., 28 Dec.,2012 0.0482 0.0350 0.0393
Thu., 27 Dec.,2012 0.0434 0.0341 0.0374
Wed., 26 Dec.,2012 0.0421 0.0344 0.0372
Tue., 25 Dec.,2012 0.0417 0.0342 0.0372
Mon., 24 Dec.,2012 0.0428 0.0334 0.0370
Sun., 23 Dec.,2012 0.0421 0.0340 0.0369
Sat., 22 Dec.,2012 0.0578 0.0349 0.0416
Fri., 21 Dec.,2012 0.0425 0.0340 0.0377
Thu., 20 Dec.,2012 0.0428 0.0345 0.0380
Wed., 19 Dec.,2012 0.0424 0.0343 0.0375
Tue., 18 Dec.,2012 0.0427 0.0346 0.0379
Mon., 17 Dec.,2012 0.0518 0.0354 0.0411
Sun., 16 Dec.,2012 0.0488 0.0346 0.0385
Sat., 15 Dec.,2012 0.0452 0.0352 0.0393
Fri., 14 Dec.,2012 0.0431 0.0347 0.0379
Thu., 13 Dec.,2012 0.0428 0.0342 0.0371
Wed., 12 Dec.,2012 0.0427 0.0343 0.0379
Tue., 11 Dec.,2012 0.0421 0.0341 0.0376
Mon., 10 Dec.,2012 0.0422 0.0349 0.0375
Sun., 09 Dec.,2012 0.0425 0.0348 0.0374
Sat., 08 Dec.,2012 0.0434 0.0343 0.0375
Fri., 07 Dec.,2012 0.0434 0.0343 0.0376
Thu., 06 Dec.,2012 0.0439 0.0340 0.0370
Wed., 05 Dec.,2012 0.0420 0.0340 0.0369
Tue., 04 Dec.,2012 0.0498 0.0344 0.0381
Mon., 03 Dec.,2012 0.0491 0.0334 0.0383
Sun., 02 Dec.,2012 0.0463 0.0332 0.0376
Sat., 01 Dec.,2012 0.0595 0.0347 0.0391
Fri., 30 Nov.,2012 0.0431 0.0346 0.0379
Thu., 29 Nov.,2012 0.0481 0.0347 0.0382
Wed., 28 Nov.,2012 0.0424 0.0335 0.0375
Tue., 27 Nov.,2012 0.0419 0.0340 0.0373
Mon., 26 Nov.,2012 0.0630 0.0354 0.0437
Sun., 25 Nov.,2012 0.0427 0.0331 0.0372
Sat., 24 Nov.,2012 0.0465 0.0336 0.0378
Fri., 23 Nov.,2012 0.0563 0.0347 0.0402
Thu., 22 Nov.,2012 0.0437 0.0353 0.0381
Wed., 21 Nov.,2012 0.0430 0.0344 0.0374
Tue., 20 Nov.,2012 0.0427 0.0346 0.0379
Mon., 19 Nov.,2012 0.0421 0.0344 0.0371
Sun., 18 Nov.,2012 0.0414 0.0345 0.0372
Sat., 17 Nov.,2012 0.0611 0.0348 0.0415
Fri., 16 Nov.,2012 0.0416 0.0342 0.0370
Thu., 15 Nov.,2012 0.0446 0.0351 0.0384
Wed., 14 Nov.,2012 0.0417 0.0336 0.0371
Tue., 13 Nov.,2012 0.0425 0.0343 0.0372
Mon., 12 Nov.,2012 0.0507 0.0340 0.0374
Sun., 11 Nov.,2012 0.0498 0.0340 0.0401
Sat., 10 Nov.,2012 0.0423 0.0344 0.0371
Fri., 09 Nov.,2012 0.0429 0.0344 0.0378
Thu., 08 Nov.,2012 0.0421 0.0346 0.0376
Wed., 07 Nov.,2012 0.0423 0.0341 0.0371
Tue., 06 Nov.,2012 0.0564 0.0342 0.0408
Mon., 05 Nov.,2012 0.0454 0.0352 0.0391
Sun., 04 Nov.,2012 0.0431 0.0338 0.0378
Sat., 03 Nov.,2012 0.0435 0.0342 0.0378
Fri., 02 Nov.,2012 0.0434 0.0344 0.0379
Thu., 01 Nov.,2012 0.0430 0.0350 0.0382
Wed., 31 Oct.,2012 0.0436 0.0348 0.0382
Tue., 30 Oct.,2012 0.0431 0.0346 0.0382
Mon., 29 Oct.,2012 0.0633 0.0337 0.0391
Sun., 28 Oct.,2012 0.0558 0.0352 0.0417
Sat., 27 Oct.,2012 0.0430 0.0344 0.0375
Fri., 26 Oct.,2012 0.0423 0.0345 0.0376
Thu., 25 Oct.,2012 0.0427 0.0346 0.0377
Wed., 24 Oct.,2012 0.0415 0.0332 0.0368
Tue., 23 Oct.,2012 0.0620 0.0344 0.0398
Mon., 22 Oct.,2012 0.0433 0.0343 0.0373
Sun., 21 Oct.,2012 0.0421 0.0342 0.0371
Sat., 20 Oct.,2012 0.0419 0.0334 0.0368
Fri., 19 Oct.,2012 0.0667 0.0329 0.0402
Thu., 18 Oct.,2012 0.0560 0.0342 0.0398
Wed., 17 Oct.,2012 0.0537 0.0348 0.0398
Tue., 16 Oct.,2012 0.0427 0.0350 0.0378
Mon., 15 Oct.,2012 0.0438 0.0347 0.0382
Sun., 14 Oct.,2012 0.0467 0.0347 0.0385
Sat., 13 Oct.,2012 0.0426 0.0348 0.0379
Fri., 12 Oct.,2012 0.0421 0.0343 0.0373
Thu., 11 Oct.,2012 0.0417 0.0335 0.0368
Wed., 10 Oct.,2012 0.0413 0.0332 0.0366
Tue., 09 Oct.,2012 0.0426 0.0341 0.0368
Mon., 08 Oct.,2012 0.0418 0.0334 0.0369
Sun., 07 Oct.,2012 0.0546 0.0341 0.0401
Sat., 06 Oct.,2012 0.0435 0.0342 0.0372
Fri., 05 Oct.,2012 0.0411 0.0335 0.0366
Thu., 04 Oct.,2012 0.0436 0.0338 0.0371
Wed., 03 Oct.,2012 0.0530 0.0338 0.0388
Tue., 02 Oct.,2012 0.0408 0.0339 0.0366
Mon., 01 Oct.,2012 0.0425 0.0335 0.0364
Sun., 30 Sep.,2012 0.0472 0.0341 0.0383
Sat., 29 Sep.,2012 0.0436 0.0342 0.0372
Fri., 28 Sep.,2012 0.0400 0.0333 0.0366
Thu., 27 Sep.,2012 0.0415 0.0336 0.0365
Wed., 26 Sep.,2012 0.0417 0.0331 0.0364
Tue., 25 Sep.,2012 0.0516 0.0329 0.0373
Mon., 24 Sep.,2012 0.0401 0.0329 0.0363
Sun., 23 Sep.,2012 0.0628 0.0336 0.0468
Sat., 22 Sep.,2012 0.0408 0.0339 0.0365
Fri., 21 Sep.,2012 0.0505 0.0339 0.0381
Thu., 20 Sep.,2012 0.0415 0.0331 0.0368
Wed., 19 Sep.,2012 0.0389 0.0324 0.0355
Tue., 18 Sep.,2012 0.0418 0.0324 0.0365
Mon., 17 Sep.,2012 0.0444 0.0347 0.0383
Sun., 16 Sep.,2012 0.0452 0.0357 0.0402
Sat., 15 Sep.,2012 0.0462 0.0358 0.0406
Fri., 14 Sep.,2012 0.0479 0.0366 0.0416
Thu., 13 Sep.,2012 0.0463 0.0361 0.0414
Wed., 12 Sep.,2012 0.0470 0.0365 0.0409
Tue., 11 Sep.,2012 0.0464 0.0360 0.0407
Mon., 10 Sep.,2012 0.0463 0.0357 0.0400
Sun., 09 Sep.,2012 0.0444 0.0358 0.0395
Sat., 08 Sep.,2012 0.0461 0.0358 0.0401
Fri., 07 Sep.,2012 0.0456 0.0361 0.0401
Thu., 06 Sep.,2012 0.0525 0.0363 0.0421
Wed., 05 Sep.,2012 0.0467 0.0352 0.0400
Tue., 04 Sep.,2012 0.0462 0.0354 0.0391
Mon., 03 Sep.,2012 0.0445 0.0352 0.0386
Sun., 02 Sep.,2012 0.0485 0.0354 0.0399
Sat., 01 Sep.,2012 0.0500 0.0353 0.0409
Fri., 31 Aug.,2012 0.0487 0.0377 0.0426
Thu., 30 Aug.,2012 0.0508 0.0372 0.0430
Wed., 29 Aug.,2012 0.0484 0.0372 0.0422
Tue., 28 Aug.,2012 0.0491 0.0371 0.0422
Mon., 27 Aug.,2012 0.0483 0.0372 0.0421
Sun., 26 Aug.,2012 0.0480 0.0363 0.0420
Sat., 25 Aug.,2012 0.0488 0.0367 0.0422
Fri., 24 Aug.,2012 0.0499 0.0365 0.0421
Thu., 23 Aug.,2012 0.0493 0.0365 0.0416
Wed., 22 Aug.,2012 0.0471 0.0365 0.0417
Tue., 21 Aug.,2012 0.0479 0.0369 0.0418
Mon., 20 Aug.,2012 0.0471 0.0365 0.0415
Sun., 19 Aug.,2012 0.0463 0.0366 0.0409
Sat., 18 Aug.,2012 0.0512 0.0367 0.0417
Fri., 17 Aug.,2012 0.0548 0.0369 0.0431
Thu., 16 Aug.,2012 0.0457 0.0366 0.0409
Wed., 15 Aug.,2012 0.0471 0.0366 0.0406
Tue., 14 Aug.,2012 0.0512 0.0365 0.0422
Mon., 13 Aug.,2012 0.0468 0.0369 0.0415
Sun., 12 Aug.,2012 0.0469 0.0361 0.0412
Sat., 11 Aug.,2012 0.0489 0.0374 0.0421
Fri., 10 Aug.,2012 0.0462 0.0366 0.0411
Thu., 09 Aug.,2012 0.0458 0.0367 0.0411
Wed., 08 Aug.,2012 0.0470 0.0363 0.0409
Tue., 07 Aug.,2012 0.0476 0.0364 0.0415
Mon., 06 Aug.,2012 0.0475 0.0357 0.0411
Sun., 05 Aug.,2012 0.0453 0.0361 0.0407
Sat., 04 Aug.,2012 0.0467 0.0360 0.0405
Fri., 03 Aug.,2012 0.0483 0.0364 0.0411
Thu., 02 Aug.,2012 0.0469 0.0357 0.0407
Wed., 01 Aug.,2012 0.0464 0.0365 0.0407
Tue., 31 Jul.,2012 0.0465 0.0359 0.0402
Mon., 30 Jul.,2012 0.0455 0.0362 0.0401
Sun., 29 Jul.,2012 0.0466 0.0365 0.0405
Sat., 28 Jul.,2012 0.0475 0.0367 0.0410
Fri., 27 Jul.,2012 0.0495 0.0362 0.0414
Thu., 26 Jul.,2012 0.0475 0.0367 0.0416
Wed., 25 Jul.,2012 0.0470 0.0360 0.0409
Tue., 24 Jul.,2012 0.0459 0.0355 0.0399
Mon., 23 Jul.,2012 0.0441 0.0348 0.0385
Sun., 22 Jul.,2012 0.0444 0.0352 0.0389
Sat., 21 Jul.,2012 0.0442 0.0344 0.0384
Fri., 20 Jul.,2012 0.0493 0.0349 0.0395
Thu., 19 Jul.,2012 0.0543 0.0357 0.0408
Wed., 18 Jul.,2012 0.0447 0.0351 0.0396
Tue., 17 Jul.,2012 0.0439 0.0357 0.0391
Mon., 16 Jul.,2012 0.0421 0.0350 0.0382
Sun., 15 Jul.,2012 0.0421 0.0347 0.0377
Sat., 14 Jul.,2012 0.0625 0.0347 0.0408
Fri., 13 Jul.,2012 0.0550 0.0353 0.0397
Thu., 12 Jul.,2012 0.0526 0.0351 0.0400
Wed., 11 Jul.,2012 0.0445 0.0350 0.0390
Tue., 10 Jul.,2012 0.0458 0.0349 0.0389
Mon., 09 Jul.,2012 0.0425 0.0344 0.0380
Sun., 08 Jul.,2012 0.0479 0.0354 0.0388
Sat., 07 Jul.,2012 0.0617 0.0355 0.0431
Fri., 06 Jul.,2012 0.0583 0.0358 0.0409
Thu., 05 Jul.,2012 0.0439 0.0356 0.0394
Wed., 04 Jul.,2012 0.0514 0.0351 0.0392
Tue., 03 Jul.,2012 0.0541 0.0352 0.0411
Mon., 02 Jul.,2012 0.0455 0.0348 0.0390
Sun., 01 Jul.,2012 0.0508 0.0353 0.0405
Sat., 30 Jun.,2012 0.0438 0.0355 0.0388
Fri., 29 Jun.,2012 0.0452 0.0355 0.0390
Thu., 28 Jun.,2012 0.0450 0.0355 0.0391
Wed., 27 Jun.,2012 0.0438 0.0346 0.0383
Tue., 26 Jun.,2012 0.0428 0.0346 0.0378
Mon., 25 Jun.,2012 0.0470 0.0347 0.0382
Sun., 24 Jun.,2012 0.0459 0.0349 0.0384
Sat., 23 Jun.,2012 0.0421 0.0337 0.0377
Fri., 22 Jun.,2012 0.0526 0.0346 0.0405
Thu., 21 Jun.,2012 0.0438 0.0345 0.0383
Wed., 20 Jun.,2012 0.0434 0.0348 0.0379
Tue., 19 Jun.,2012 0.0466 0.0340 0.0395
Mon., 18 Jun.,2012 0.0438 0.0352 0.0389
Sun., 17 Jun.,2012 0.0453 0.0351 0.0387
Sat., 16 Jun.,2012 0.0436 0.0348 0.0384
Fri., 15 Jun.,2012 0.0431 0.0351 0.0381
Thu., 14 Jun.,2012 0.0425 0.0341 0.0376
Wed., 13 Jun.,2012 0.0473 0.0343 0.0381
Tue., 12 Jun.,2012 0.0518 0.0349 0.0412
Mon., 11 Jun.,2012 0.0480 0.0342 0.0390
Sun., 10 Jun.,2012 0.0442 0.0347 0.0380
Sat., 09 Jun.,2012 0.0528 0.0355 0.0420
Fri., 08 Jun.,2012 0.0515 0.0353 0.0398
Thu., 07 Jun.,2012 0.0446 0.0352 0.0383
Wed., 06 Jun.,2012 0.0493 0.0345 0.0405
Tue., 05 Jun.,2012 0.0445 0.0349 0.0395
Mon., 04 Jun.,2012 0.0445 0.0357 0.0392
Sun., 03 Jun.,2012 0.0444 0.0355 0.0390
Sat., 02 Jun.,2012 0.0450 0.0352 0.0398
Fri., 01 Jun.,2012 0.0460 0.0357 0.0396
Thu., 31 May.,2012 0.0440 0.0352 0.0384
Wed., 30 May.,2012 0.0445 0.0349 0.0383
Tue., 29 May.,2012 0.0649 0.0353 0.0404
Mon., 28 May.,2012 0.0521 0.0356 0.0401
Sun., 27 May.,2012 0.0449 0.0356 0.0393
Sat., 26 May.,2012 0.0444 0.0354 0.0393
Fri., 25 May.,2012 0.0547 0.0358 0.0409
Thu., 24 May.,2012 0.0432 0.0351 0.0387
Wed., 23 May.,2012 0.0436 0.0344 0.0377
Tue., 22 May.,2012 0.0504 0.0354 0.0410
Mon., 21 May.,2012 0.0452 0.0353 0.0395
Sun., 20 May.,2012 0.0444 0.0353 0.0394
Sat., 19 May.,2012 0.0433 0.0348 0.0388
Fri., 18 May.,2012 0.0561 0.0356 0.0404
Thu., 17 May.,2012 0.0445 0.0354 0.0396
Wed., 16 May.,2012 0.0436 0.0350 0.0386
Tue., 15 May.,2012 0.0522 0.0350 0.0399
Mon., 14 May.,2012 0.0438 0.0349 0.0386
Sun., 13 May.,2012 0.0433 0.0349 0.0384
Sat., 12 May.,2012 0.0437 0.0347 0.0381
Fri., 11 May.,2012 0.0426 0.0347 0.0377
Thu., 10 May.,2012 0.0592 0.0348 0.0393
Wed., 09 May.,2012 0.0697 0.0357 0.0429
Tue., 08 May.,2012 0.0444 0.0355 0.0387
Mon., 07 May.,2012 0.0439 0.0355 0.0383
Sun., 06 May.,2012 0.0518 0.0345 0.0392
Sat., 05 May.,2012 0.0426 0.0347 0.0377
Fri., 04 May.,2012 0.0631 0.0345 0.0396
Thu., 03 May.,2012 0.0609 0.0344 0.0442
Wed., 02 May.,2012 0.0463 0.0343 0.0392
Tue., 01 May.,2012 0.0438 0.0347 0.0376
Mon., 30 Apr.,2012 0.0426 0.0345 0.0377
Sun., 29 Apr.,2012 0.0436 0.0345 0.0377
Sat., 28 Apr.,2012 0.0429 0.0338 0.0376
Fri., 27 Apr.,2012 0.0485 0.0349 0.0409
Thu., 26 Apr.,2012 0.0544 0.0341 0.0422
Wed., 25 Apr.,2012 0.0432 0.0348 0.0379
Tue., 24 Apr.,2012 0.0422 0.0345 0.0377
Mon., 23 Apr.,2012 0.0452 0.0352 0.0392
Sun., 22 Apr.,2012 0.0468 0.0343 0.0390
Sat., 21 Apr.,2012 0.0430 0.0346 0.0372
Fri., 20 Apr.,2012 0.0440 0.0347 0.0374
Thu., 19 Apr.,2012 0.0414 0.0345 0.0372
Wed., 18 Apr.,2012 0.0443 0.0349 0.0375
Tue., 17 Apr.,2012 0.0552 0.0339 0.0390
Mon., 16 Apr.,2012 0.0424 0.0346 0.0377
Sun., 15 Apr.,2012 0.0421 0.0346 0.0376
Sat., 14 Apr.,2012 0.0602 0.0352 0.0487
Fri., 13 Apr.,2012 0.0527 0.0352 0.0401
Thu., 12 Apr.,2012 0.0422 0.0339 0.0378
Wed., 11 Apr.,2012 0.0479 0.0352 0.0399

Past data