Measurement results by the hour (Chofu) 19 Mar., 2018 - 25 Mar., 2018

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., 25 Mar. 0.0307 0.0264 0.0284
22:01-23:00, Sun., 25 Mar. 0.0302 0.0263 0.0283
21:01-22:00, Sun., 25 Mar. 0.0292 0.0262 0.0280
20:01-21:00, Sun., 25 Mar. 0.0300 0.0257 0.0280
19:01-20:00, Sun., 25 Mar. 0.0298 0.0256 0.0279
18:01-19:00, Sun., 25 Mar. 0.0302 0.0256 0.0280
17:01-18:00, Sun., 25 Mar. 0.0295 0.0257 0.0276
16:01-17:00, Sun., 25 Mar. 0.0306 0.0262 0.0279
15:01-16:00, Sun., 25 Mar. 0.0295 0.0254 0.0276
14:01-15:00, Sun., 25 Mar. 0.0299 0.0256 0.0278
13:01-14:00, Sun., 25 Mar. 0.0304 0.0265 0.0283
12:01-13:00, Sun., 25 Mar. 0.0295 0.0260 0.0281
11:01-12:00, Sun., 25 Mar. 0.0303 0.0263 0.0286
10:01-11:00, Sun., 25 Mar. 0.0311 0.0269 0.0286
09:01-10:00, Sun., 25 Mar. 0.0302 0.0265 0.0285
08:01-09:00, Sun., 25 Mar. 0.0310 0.0267 0.0288
07:01-08:00, Sun., 25 Mar. 0.0304 0.0268 0.0290
06:01-07:00, Sun., 25 Mar. 0.0303 0.0271 0.0284
05:01-06:00, Sun., 25 Mar. 0.0297 0.0261 0.0281
04:01-05:00, Sun., 25 Mar. 0.0303 0.0260 0.0280
03:01-04:00, Sun., 25 Mar. 0.0309 0.0253 0.0280
02:01-03:00, Sun., 25 Mar. 0.0297 0.0259 0.0281
01:01-02:00, Sun., 25 Mar. 0.0302 0.0267 0.0282
00:01-01:00, Sun., 25 Mar. 0.0307 0.0265 0.0287
23:01-24:00, Sat., 24 Mar. 0.0303 0.0249 0.0277
22:01-23:00, Sat., 24 Mar. 0.0294 0.0257 0.0276
21:01-22:00, Sat., 24 Mar. 0.0295 0.0240 0.0272
20:01-21:00, Sat., 24 Mar. 0.0286 0.0245 0.0274
19:01-20:00, Sat., 24 Mar. 0.0293 0.0254 0.0274
18:01-19:00, Sat., 24 Mar. 0.0289 0.0255 0.0273
17:01-18:00, Sat., 24 Mar. 0.0293 0.0253 0.0273
16:01-17:00, Sat., 24 Mar. 0.0295 0.0254 0.0272
15:01-16:00, Sat., 24 Mar. 0.0294 0.0260 0.0274
14:01-15:00, Sat., 24 Mar. 0.0285 0.0253 0.0271
13:01-14:00, Sat., 24 Mar. 0.0294 0.0253 0.0272
12:01-13:00, Sat., 24 Mar. 0.0292 0.0244 0.0271
11:01-12:00, Sat., 24 Mar. 0.0295 0.0260 0.0277
10:01-11:00, Sat., 24 Mar. 0.0295 0.0254 0.0274
09:01-10:00, Sat., 24 Mar. 0.0296 0.0257 0.0276
08:01-09:00, Sat., 24 Mar. 0.0294 0.0254 0.0275
07:01-08:00, Sat., 24 Mar. 0.0299 0.0263 0.0278
06:01-07:00, Sat., 24 Mar. 0.0308 0.0260 0.0281
05:01-06:00, Sat., 24 Mar. 0.0301 0.0265 0.0282
04:01-05:00, Sat., 24 Mar. 0.0298 0.0264 0.0280
03:01-04:00, Sat., 24 Mar. 0.0292 0.0256 0.0277
02:01-03:00, Sat., 24 Mar. 0.0301 0.0257 0.0278
01:01-02:00, Sat., 24 Mar. 0.0319 0.0262 0.0291
00:01-01:00, Sat., 24 Mar. 0.0341 0.0290 0.0310
23:01-24:00, Fri., 23 Mar. 0.0389 0.0308 0.0338
22:01-23:00, Fri., 23 Mar. 0.0398 0.0352 0.0369
21:01-22:00, Fri., 23 Mar. 0.0369 0.0284 0.0335
20:01-21:00, Fri., 23 Mar. 0.0306 0.0254 0.0279
19:01-20:00, Fri., 23 Mar. 0.0307 0.0255 0.0275
18:01-19:00, Fri., 23 Mar. 0.0289 0.0254 0.0275
17:01-18:00, Fri., 23 Mar. 0.0295 0.0262 0.0276
16:01-17:00, Fri., 23 Mar. 0.0295 0.0258 0.0277
15:01-16:00, Fri., 23 Mar. 0.0294 0.0257 0.0274
14:01-15:00, Fri., 23 Mar. 0.0298 0.0248 0.0275
13:01-14:00, Fri., 23 Mar. 0.0296 0.0253 0.0278
12:01-13:00, Fri., 23 Mar. 0.0300 0.0257 0.0276
11:01-12:00, Fri., 23 Mar. 0.0296 0.0259 0.0278
10:01-11:00, Fri., 23 Mar. 0.0295 0.0262 0.0277
09:01-10:00, Fri., 23 Mar. 0.0305 0.0260 0.0279
08:01-09:00, Fri., 23 Mar. 0.0301 0.0258 0.0278
07:01-08:00, Fri., 23 Mar. 0.0300 0.0254 0.0281
06:01-07:00, Fri., 23 Mar. 0.0299 0.0263 0.0280
05:01-06:00, Fri., 23 Mar. 0.0312 0.0265 0.0279
04:01-05:00, Fri., 23 Mar. 0.0303 0.0261 0.0281
03:01-04:00, Fri., 23 Mar. 0.0296 0.0260 0.0276
02:01-03:00, Fri., 23 Mar. 0.0294 0.0256 0.0279
01:01-02:00, Fri., 23 Mar. 0.0299 0.0259 0.0278
00:01-01:00, Fri., 23 Mar. 0.0298 0.0267 0.0281
23:01-24:00, Thu., 22 Mar. 0.0298 0.0265 0.0279
22:01-23:00, Thu., 22 Mar. 0.0297 0.0258 0.0277
21:01-22:00, Thu., 22 Mar. 0.0299 0.0264 0.0282
20:01-21:00, Thu., 22 Mar. 0.0297 0.0264 0.0280
19:01-20:00, Thu., 22 Mar. 0.0300 0.0258 0.0279
18:01-19:00, Thu., 22 Mar. 0.0301 0.0263 0.0276
17:01-18:00, Thu., 22 Mar. 0.0299 0.0261 0.0277
16:01-17:00, Thu., 22 Mar. 0.0301 0.0251 0.0276
15:01-16:00, Thu., 22 Mar. 0.0295 0.0259 0.0278
14:01-15:00, Thu., 22 Mar. 0.0301 0.0256 0.0276
13:01-14:00, Thu., 22 Mar. 0.0301 0.0261 0.0279
12:01-13:00, Thu., 22 Mar. 0.0307 0.0270 0.0286
11:01-12:00, Thu., 22 Mar. 0.0319 0.0264 0.0296
10:01-11:00, Thu., 22 Mar. 0.0328 0.0285 0.0306
09:01-10:00, Thu., 22 Mar. 0.0349 0.0309 0.0327
08:01-09:00, Thu., 22 Mar. 0.0346 0.0267 0.0298
07:01-08:00, Thu., 22 Mar. 0.0325 0.0273 0.0299
06:01-07:00, Thu., 22 Mar. 0.0423 0.0310 0.0352
05:01-06:00, Thu., 22 Mar. 0.0456 0.0372 0.0416
04:01-05:00, Thu., 22 Mar. 0.0484 0.0398 0.0444
03:01-04:00, Thu., 22 Mar. 0.0475 0.0401 0.0439
02:01-03:00, Thu., 22 Mar. 0.0481 0.0397 0.0431
01:01-02:00, Thu., 22 Mar. 0.0440 0.0355 0.0388
00:01-01:00, Thu., 22 Mar. 0.0425 0.0368 0.0393
23:01-24:00, Wed., 21 Mar. 0.0450 0.0380 0.0424
22:01-23:00, Wed., 21 Mar. 0.0449 0.0370 0.0406
21:01-22:00, Wed., 21 Mar. 0.0417 0.0338 0.0377
20:01-21:00, Wed., 21 Mar. 0.0452 0.0377 0.0415
19:01-20:00, Wed., 21 Mar. 0.0433 0.0357 0.0384
18:01-19:00, Wed., 21 Mar. 0.0392 0.0334 0.0362
17:01-18:00, Wed., 21 Mar. 0.0363 0.0324 0.0341
16:01-17:00, Wed., 21 Mar. 0.0367 0.0312 0.0341
15:01-16:00, Wed., 21 Mar. 0.0395 0.0332 0.0354
14:01-15:00, Wed., 21 Mar. 0.0413 0.0345 0.0371
13:01-14:00, Wed., 21 Mar. 0.0448 0.0358 0.0406
12:01-13:00, Wed., 21 Mar. 0.0469 0.0398 0.0437
11:01-12:00, Wed., 21 Mar. 0.0481 0.0401 0.0437
10:01-11:00, Wed., 21 Mar. 0.0452 0.0385 0.0418
09:01-10:00, Wed., 21 Mar. 0.0448 0.0370 0.0407
08:01-09:00, Wed., 21 Mar. 0.0424 0.0358 0.0379
07:01-08:00, Wed., 21 Mar. 0.0394 0.0302 0.0342
06:01-07:00, Wed., 21 Mar. 0.0315 0.0269 0.0289
05:01-06:00, Wed., 21 Mar. 0.0301 0.0257 0.0283
04:01-05:00, Wed., 21 Mar. 0.0300 0.0262 0.0283
03:01-04:00, Wed., 21 Mar. 0.0303 0.0266 0.0281
02:01-03:00, Wed., 21 Mar. 0.0292 0.0260 0.0279
01:01-02:00, Wed., 21 Mar. 0.0297 0.0263 0.0281
00:01-01:00, Wed., 21 Mar. 0.0303 0.0264 0.0280
23:01-24:00, Tue., 20 Mar. 0.0300 0.0262 0.0279
22:01-23:00, Tue., 20 Mar. 0.0296 0.0259 0.0278
21:01-22:00, Tue., 20 Mar. 0.0290 0.0258 0.0278
20:01-21:00, Tue., 20 Mar. 0.0313 0.0260 0.0279
19:01-20:00, Tue., 20 Mar. 0.0297 0.0256 0.0279
18:01-19:00, Tue., 20 Mar. 0.0302 0.0257 0.0280
17:01-18:00, Tue., 20 Mar. 0.0296 0.0263 0.0279
16:01-17:00, Tue., 20 Mar. 0.0306 0.0266 0.0287
15:01-16:00, Tue., 20 Mar. 0.0315 0.0270 0.0293
14:01-15:00, Tue., 20 Mar. 0.0342 0.0281 0.0314
13:01-14:00, Tue., 20 Mar. 0.0366 0.0318 0.0343
12:01-13:00, Tue., 20 Mar. 0.0372 0.0337 0.0355
11:01-12:00, Tue., 20 Mar. 0.0362 0.0314 0.0341
10:01-11:00, Tue., 20 Mar. 0.0391 0.0327 0.0352
09:01-10:00, Tue., 20 Mar. 0.0431 0.0351 0.0390
08:01-09:00, Tue., 20 Mar. 0.0408 0.0300 0.0347
07:01-08:00, Tue., 20 Mar. 0.0369 0.0300 0.0340
06:01-07:00, Tue., 20 Mar. 0.0376 0.0330 0.0349
05:01-06:00, Tue., 20 Mar. 0.0371 0.0326 0.0355
04:01-05:00, Tue., 20 Mar. 0.0378 0.0300 0.0339
03:01-04:00, Tue., 20 Mar. 0.0434 0.0355 0.0382
02:01-03:00, Tue., 20 Mar. 0.0437 0.0353 0.0379
01:01-02:00, Tue., 20 Mar. 0.0366 0.0292 0.0328
00:01-01:00, Tue., 20 Mar. 0.0363 0.0302 0.0333
23:01-24:00, Mon., 19 Mar. 0.0384 0.0336 0.0355
22:01-23:00, Mon., 19 Mar. 0.0410 0.0348 0.0370
21:01-22:00, Mon., 19 Mar. 0.0405 0.0342 0.0369
20:01-21:00, Mon., 19 Mar. 0.0384 0.0335 0.0361
19:01-20:00, Mon., 19 Mar. 0.0359 0.0283 0.0331
18:01-19:00, Mon., 19 Mar. 0.0308 0.0268 0.0290
17:01-18:00, Mon., 19 Mar. 0.0306 0.0275 0.0292
16:01-17:00, Mon., 19 Mar. 0.0309 0.0271 0.0290
15:01-16:00, Mon., 19 Mar. 0.0307 0.0268 0.0288
14:01-15:00, Mon., 19 Mar. 0.0313 0.0267 0.0288
13:01-14:00, Mon., 19 Mar. 0.0316 0.0274 0.0296
12:01-13:00, Mon., 19 Mar. 0.0314 0.0276 0.0296
11:01-12:00, Mon., 19 Mar. 0.0319 0.0278 0.0300
10:01-11:00, Mon., 19 Mar. 0.0330 0.0283 0.0302
09:01-10:00, Mon., 19 Mar. 0.0325 0.0271 0.0302
08:01-09:00, Mon., 19 Mar. 0.0327 0.0287 0.0303
07:01-08:00, Mon., 19 Mar. 0.0321 0.0285 0.0304
06:01-07:00, Mon., 19 Mar. 0.0327 0.0285 0.0304
05:01-06:00, Mon., 19 Mar. 0.0324 0.0276 0.0299
04:01-05:00, Mon., 19 Mar. 0.0325 0.0275 0.0298
03:01-04:00, Mon., 19 Mar. 0.0311 0.0271 0.0290
02:01-03:00, Mon., 19 Mar. 0.0311 0.0274 0.0290
01:01-02:00, Mon., 19 Mar. 0.0306 0.0262 0.0290
00:01-01:00, Mon., 19 Mar. 0.0304 0.0269 0.0289