Measurement results by the hour (Chofu) 24 Sep., 2018 - 30 Sep., 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., 30 Sep. 0.0421 0.0317 0.0366
22:01-23:00, Sun., 30 Sep. 0.0342 0.0258 0.0301
21:01-22:00, Sun., 30 Sep. 0.0295 0.0256 0.0274
20:01-21:00, Sun., 30 Sep. 0.0313 0.0273 0.0289
19:01-20:00, Sun., 30 Sep. 0.0321 0.0265 0.0297
18:01-19:00, Sun., 30 Sep. 0.0321 0.0278 0.0298
17:01-18:00, Sun., 30 Sep. 0.0320 0.0268 0.0291
16:01-17:00, Sun., 30 Sep. 0.0308 0.0269 0.0288
15:01-16:00, Sun., 30 Sep. 0.0322 0.0269 0.0287
14:01-15:00, Sun., 30 Sep. 0.0298 0.0260 0.0277
13:01-14:00, Sun., 30 Sep. 0.0291 0.0245 0.0273
12:01-13:00, Sun., 30 Sep. 0.0294 0.0252 0.0271
11:01-12:00, Sun., 30 Sep. 0.0294 0.0259 0.0275
10:01-11:00, Sun., 30 Sep. 0.0307 0.0261 0.0278
09:01-10:00, Sun., 30 Sep. 0.0311 0.0264 0.0285
08:01-09:00, Sun., 30 Sep. 0.0334 0.0290 0.0309
07:01-08:00, Sun., 30 Sep. 0.0355 0.0303 0.0330
06:01-07:00, Sun., 30 Sep. 0.0371 0.0331 0.0350
05:01-06:00, Sun., 30 Sep. 0.0360 0.0313 0.0338
04:01-05:00, Sun., 30 Sep. 0.0376 0.0328 0.0354
03:01-04:00, Sun., 30 Sep. 0.0385 0.0315 0.0348
02:01-03:00, Sun., 30 Sep. 0.0327 0.0285 0.0306
01:01-02:00, Sun., 30 Sep. 0.0332 0.0287 0.0310
00:01-01:00, Sun., 30 Sep. 0.0336 0.0297 0.0316
23:01-24:00, Sat., 29 Sep. 0.0310 0.0261 0.0284
22:01-23:00, Sat., 29 Sep. 0.0301 0.0255 0.0278
21:01-22:00, Sat., 29 Sep. 0.0304 0.0266 0.0285
20:01-21:00, Sat., 29 Sep. 0.0315 0.0276 0.0295
19:01-20:00, Sat., 29 Sep. 0.0343 0.0298 0.0323
18:01-19:00, Sat., 29 Sep. 0.0357 0.0305 0.0332
17:01-18:00, Sat., 29 Sep. 0.0353 0.0310 0.0330
16:01-17:00, Sat., 29 Sep. 0.0336 0.0295 0.0318
15:01-16:00, Sat., 29 Sep. 0.0340 0.0301 0.0324
14:01-15:00, Sat., 29 Sep. 0.0349 0.0301 0.0328
13:01-14:00, Sat., 29 Sep. 0.0355 0.0307 0.0332
12:01-13:00, Sat., 29 Sep. 0.0349 0.0315 0.0330
11:01-12:00, Sat., 29 Sep. 0.0340 0.0295 0.0316
10:01-11:00, Sat., 29 Sep. 0.0327 0.0289 0.0304
09:01-10:00, Sat., 29 Sep. 0.0314 0.0280 0.0295
08:01-09:00, Sat., 29 Sep. 0.0316 0.0281 0.0297
07:01-08:00, Sat., 29 Sep. 0.0314 0.0266 0.0294
06:01-07:00, Sat., 29 Sep. 0.0301 0.0276 0.0289
05:01-06:00, Sat., 29 Sep. 0.0309 0.0277 0.0296
04:01-05:00, Sat., 29 Sep. 0.0309 0.0276 0.0293
03:01-04:00, Sat., 29 Sep. 0.0307 0.0267 0.0288
02:01-03:00, Sat., 29 Sep. 0.0313 0.0265 0.0287
01:01-02:00, Sat., 29 Sep. 0.0303 0.0266 0.0285
00:01-01:00, Sat., 29 Sep. 0.0304 0.0263 0.0280
23:01-24:00, Fri., 28 Sep. 0.0302 0.0258 0.0285
22:01-23:00, Fri., 28 Sep. 0.0301 0.0259 0.0282
21:01-22:00, Fri., 28 Sep. 0.0300 0.0260 0.0281
20:01-21:00, Fri., 28 Sep. 0.0298 0.0253 0.0281
19:01-20:00, Fri., 28 Sep. 0.0300 0.0264 0.0282
18:01-19:00, Fri., 28 Sep. 0.0299 0.0264 0.0280
17:01-18:00, Fri., 28 Sep. 0.0300 0.0263 0.0278
16:01-17:00, Fri., 28 Sep. 0.0299 0.0261 0.0280
15:01-16:00, Fri., 28 Sep. 0.0298 0.0261 0.0279
14:01-15:00, Fri., 28 Sep. 0.0291 0.0259 0.0277
13:01-14:00, Fri., 28 Sep. 0.0292 0.0261 0.0275
12:01-13:00, Fri., 28 Sep. 0.0301 0.0258 0.0278
11:01-12:00, Fri., 28 Sep. 0.0299 0.0259 0.0282
10:01-11:00, Fri., 28 Sep. 0.0298 0.0253 0.0280
09:01-10:00, Fri., 28 Sep. 0.0316 0.0273 0.0291
08:01-09:00, Fri., 28 Sep. 0.0325 0.0276 0.0297
07:01-08:00, Fri., 28 Sep. 0.0323 0.0274 0.0296
06:01-07:00, Fri., 28 Sep. 0.0316 0.0277 0.0297
05:01-06:00, Fri., 28 Sep. 0.0316 0.0278 0.0296
04:01-05:00, Fri., 28 Sep. 0.0317 0.0274 0.0297
03:01-04:00, Fri., 28 Sep. 0.0313 0.0277 0.0292
02:01-03:00, Fri., 28 Sep. 0.0305 0.0275 0.0292
01:01-02:00, Fri., 28 Sep. 0.0310 0.0268 0.0292
00:01-01:00, Fri., 28 Sep. 0.0329 0.0271 0.0293
23:01-24:00, Thu., 27 Sep. 0.0310 0.0269 0.0286
22:01-23:00, Thu., 27 Sep. 0.0308 0.0269 0.0289
21:01-22:00, Thu., 27 Sep. 0.0303 0.0264 0.0283
20:01-21:00, Thu., 27 Sep. 0.0302 0.0264 0.0282
19:01-20:00, Thu., 27 Sep. 0.0302 0.0261 0.0279
18:01-19:00, Thu., 27 Sep. 0.0293 0.0257 0.0279
17:01-18:00, Thu., 27 Sep. 0.0300 0.0258 0.0280
16:01-17:00, Thu., 27 Sep. 0.0310 0.0262 0.0281
15:01-16:00, Thu., 27 Sep. 0.0307 0.0270 0.0289
14:01-15:00, Thu., 27 Sep. 0.0330 0.0287 0.0305
13:01-14:00, Thu., 27 Sep. 0.0304 0.0266 0.0288
12:01-13:00, Thu., 27 Sep. 0.0321 0.0284 0.0302
11:01-12:00, Thu., 27 Sep. 0.0325 0.0287 0.0305
10:01-11:00, Thu., 27 Sep. 0.0328 0.0273 0.0293
09:01-10:00, Thu., 27 Sep. 0.0322 0.0284 0.0303
08:01-09:00, Thu., 27 Sep. 0.0326 0.0283 0.0304
07:01-08:00, Thu., 27 Sep. 0.0341 0.0289 0.0311
06:01-07:00, Thu., 27 Sep. 0.0345 0.0300 0.0322
05:01-06:00, Thu., 27 Sep. 0.0364 0.0296 0.0338
04:01-05:00, Thu., 27 Sep. 0.0412 0.0344 0.0375
03:01-04:00, Thu., 27 Sep. 0.0452 0.0365 0.0417
02:01-03:00, Thu., 27 Sep. 0.0505 0.0428 0.0467
01:01-02:00, Thu., 27 Sep. 0.0531 0.0430 0.0482
00:01-01:00, Thu., 27 Sep. 0.0483 0.0390 0.0433
23:01-24:00, Wed., 26 Sep. 0.0484 0.0396 0.0451
22:01-23:00, Wed., 26 Sep. 0.0534 0.0450 0.0490
21:01-22:00, Wed., 26 Sep. 0.0556 0.0387 0.0494
20:01-21:00, Wed., 26 Sep. 0.0420 0.0357 0.0392
19:01-20:00, Wed., 26 Sep. 0.0441 0.0360 0.0390
18:01-19:00, Wed., 26 Sep. 0.0425 0.0348 0.0380
17:01-18:00, Wed., 26 Sep. 0.0404 0.0352 0.0370
16:01-17:00, Wed., 26 Sep. 0.0432 0.0350 0.0390
15:01-16:00, Wed., 26 Sep. 0.0391 0.0275 0.0317
14:01-15:00, Wed., 26 Sep. 0.0307 0.0258 0.0281
13:01-14:00, Wed., 26 Sep. 0.0301 0.0264 0.0283
12:01-13:00, Wed., 26 Sep. 0.0311 0.0268 0.0287
11:01-12:00, Wed., 26 Sep. 0.0335 0.0288 0.0309
10:01-11:00, Wed., 26 Sep. 0.0350 0.0292 0.0321
09:01-10:00, Wed., 26 Sep. 0.0339 0.0299 0.0319
08:01-09:00, Wed., 26 Sep. 0.0335 0.0296 0.0317
07:01-08:00, Wed., 26 Sep. 0.0337 0.0290 0.0311
06:01-07:00, Wed., 26 Sep. 0.0398 0.0291 0.0340
05:01-06:00, Wed., 26 Sep. 0.0541 0.0367 0.0460
04:01-05:00, Wed., 26 Sep. 0.0572 0.0373 0.0471
03:01-04:00, Wed., 26 Sep. 0.0403 0.0306 0.0339
02:01-03:00, Wed., 26 Sep. 0.0340 0.0299 0.0319
01:01-02:00, Wed., 26 Sep. 0.0333 0.0259 0.0291
00:01-01:00, Wed., 26 Sep. 0.0308 0.0260 0.0280
23:01-24:00, Tue., 25 Sep. 0.0302 0.0261 0.0280
22:01-23:00, Tue., 25 Sep. 0.0306 0.0267 0.0283
21:01-22:00, Tue., 25 Sep. 0.0305 0.0268 0.0281
20:01-21:00, Tue., 25 Sep. 0.0318 0.0269 0.0289
19:01-20:00, Tue., 25 Sep. 0.0360 0.0289 0.0324
18:01-19:00, Tue., 25 Sep. 0.0387 0.0339 0.0363
17:01-18:00, Tue., 25 Sep. 0.0466 0.0353 0.0411
16:01-17:00, Tue., 25 Sep. 0.0576 0.0441 0.0496
15:01-16:00, Tue., 25 Sep. 0.0609 0.0535 0.0570
14:01-15:00, Tue., 25 Sep. 0.0600 0.0503 0.0551
13:01-14:00, Tue., 25 Sep. 0.0573 0.0421 0.0509
12:01-13:00, Tue., 25 Sep. 0.0412 0.0307 0.0338
11:01-12:00, Tue., 25 Sep. 0.0349 0.0299 0.0328
10:01-11:00, Tue., 25 Sep. 0.0332 0.0267 0.0294
09:01-10:00, Tue., 25 Sep. 0.0309 0.0256 0.0281
08:01-09:00, Tue., 25 Sep. 0.0313 0.0261 0.0283
07:01-08:00, Tue., 25 Sep. 0.0297 0.0261 0.0281
06:01-07:00, Tue., 25 Sep. 0.0303 0.0263 0.0280
05:01-06:00, Tue., 25 Sep. 0.0295 0.0260 0.0280
04:01-05:00, Tue., 25 Sep. 0.0296 0.0255 0.0280
03:01-04:00, Tue., 25 Sep. 0.0301 0.0265 0.0281
02:01-03:00, Tue., 25 Sep. 0.0302 0.0262 0.0281
01:01-02:00, Tue., 25 Sep. 0.0305 0.0264 0.0281
00:01-01:00, Tue., 25 Sep. 0.0298 0.0266 0.0280
23:01-24:00, Mon., 24 Sep. 0.0294 0.0256 0.0277
22:01-23:00, Mon., 24 Sep. 0.0305 0.0263 0.0279
21:01-22:00, Mon., 24 Sep. 0.0296 0.0265 0.0280
20:01-21:00, Mon., 24 Sep. 0.0313 0.0262 0.0285
19:01-20:00, Mon., 24 Sep. 0.0318 0.0275 0.0297
18:01-19:00, Mon., 24 Sep. 0.0327 0.0267 0.0287
17:01-18:00, Mon., 24 Sep. 0.0302 0.0265 0.0283
16:01-17:00, Mon., 24 Sep. 0.0302 0.0266 0.0282
15:01-16:00, Mon., 24 Sep. 0.0305 0.0262 0.0282
14:01-15:00, Mon., 24 Sep. 0.0295 0.0259 0.0280
13:01-14:00, Mon., 24 Sep. 0.0294 0.0255 0.0278
12:01-13:00, Mon., 24 Sep. 0.0300 0.0253 0.0278
11:01-12:00, Mon., 24 Sep. 0.0301 0.0262 0.0282
10:01-11:00, Mon., 24 Sep. 0.0295 0.0267 0.0282
09:01-10:00, Mon., 24 Sep. 0.0304 0.0262 0.0283
08:01-09:00, Mon., 24 Sep. 0.0309 0.0266 0.0286
07:01-08:00, Mon., 24 Sep. 0.0302 0.0263 0.0284
06:01-07:00, Mon., 24 Sep. 0.0307 0.0268 0.0287
05:01-06:00, Mon., 24 Sep. 0.0304 0.0273 0.0285
04:01-05:00, Mon., 24 Sep. 0.0302 0.0265 0.0283
03:01-04:00, Mon., 24 Sep. 0.0303 0.0265 0.0283
02:01-03:00, Mon., 24 Sep. 0.0297 0.0259 0.0281
01:01-02:00, Mon., 24 Sep. 0.0301 0.0264 0.0280
00:01-01:00, Mon., 24 Sep. 0.0296 0.0259 0.0279