Measurement results by the hour (Chofu) 16 Apr., 2018 - 22 Apr., 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., 22 Apr. 0.0312 0.0261 0.0291
22:01-23:00, Sun., 22 Apr. 0.0313 0.0276 0.0294
21:01-22:00, Sun., 22 Apr. 0.0314 0.0275 0.0292
20:01-21:00, Sun., 22 Apr. 0.0322 0.0276 0.0290
19:01-20:00, Sun., 22 Apr. 0.0305 0.0275 0.0290
18:01-19:00, Sun., 22 Apr. 0.0315 0.0268 0.0291
17:01-18:00, Sun., 22 Apr. 0.0309 0.0270 0.0290
16:01-17:00, Sun., 22 Apr. 0.0319 0.0270 0.0289
15:01-16:00, Sun., 22 Apr. 0.0318 0.0270 0.0287
14:01-15:00, Sun., 22 Apr. 0.0304 0.0273 0.0289
13:01-14:00, Sun., 22 Apr. 0.0308 0.0270 0.0289
12:01-13:00, Sun., 22 Apr. 0.0312 0.0274 0.0293
11:01-12:00, Sun., 22 Apr. 0.0317 0.0280 0.0299
10:01-11:00, Sun., 22 Apr. 0.0316 0.0282 0.0301
09:01-10:00, Sun., 22 Apr. 0.0324 0.0289 0.0304
08:01-09:00, Sun., 22 Apr. 0.0324 0.0293 0.0309
07:01-08:00, Sun., 22 Apr. 0.0331 0.0299 0.0316
06:01-07:00, Sun., 22 Apr. 0.0346 0.0289 0.0316
05:01-06:00, Sun., 22 Apr. 0.0341 0.0291 0.0317
04:01-05:00, Sun., 22 Apr. 0.0332 0.0288 0.0310
03:01-04:00, Sun., 22 Apr. 0.0331 0.0289 0.0308
02:01-03:00, Sun., 22 Apr. 0.0318 0.0283 0.0304
01:01-02:00, Sun., 22 Apr. 0.0335 0.0280 0.0305
00:01-01:00, Sun., 22 Apr. 0.0316 0.0273 0.0295
23:01-24:00, Sat., 21 Apr. 0.0310 0.0272 0.0289
22:01-23:00, Sat., 21 Apr. 0.0309 0.0268 0.0287
21:01-22:00, Sat., 21 Apr. 0.0302 0.0266 0.0285
20:01-21:00, Sat., 21 Apr. 0.0307 0.0261 0.0282
19:01-20:00, Sat., 21 Apr. 0.0304 0.0266 0.0282
18:01-19:00, Sat., 21 Apr. 0.0306 0.0268 0.0284
17:01-18:00, Sat., 21 Apr. 0.0298 0.0272 0.0284
16:01-17:00, Sat., 21 Apr. 0.0307 0.0268 0.0285
15:01-16:00, Sat., 21 Apr. 0.0308 0.0263 0.0284
14:01-15:00, Sat., 21 Apr. 0.0302 0.0261 0.0284
13:01-14:00, Sat., 21 Apr. 0.0306 0.0267 0.0287
12:01-13:00, Sat., 21 Apr. 0.0301 0.0258 0.0283
11:01-12:00, Sat., 21 Apr. 0.0312 0.0264 0.0285
10:01-11:00, Sat., 21 Apr. 0.0313 0.0266 0.0284
09:01-10:00, Sat., 21 Apr. 0.0304 0.0261 0.0285
08:01-09:00, Sat., 21 Apr. 0.0309 0.0271 0.0290
07:01-08:00, Sat., 21 Apr. 0.0312 0.0274 0.0292
06:01-07:00, Sat., 21 Apr. 0.0316 0.0281 0.0297
05:01-06:00, Sat., 21 Apr. 0.0321 0.0274 0.0298
04:01-05:00, Sat., 21 Apr. 0.0318 0.0283 0.0301
03:01-04:00, Sat., 21 Apr. 0.0320 0.0285 0.0301
02:01-03:00, Sat., 21 Apr. 0.0326 0.0272 0.0297
01:01-02:00, Sat., 21 Apr. 0.0309 0.0270 0.0287
00:01-01:00, Sat., 21 Apr. 0.0312 0.0271 0.0285
23:01-24:00, Fri., 20 Apr. 0.0299 0.0267 0.0283
22:01-23:00, Fri., 20 Apr. 0.0300 0.0271 0.0287
21:01-22:00, Fri., 20 Apr. 0.0311 0.0269 0.0284
20:01-21:00, Fri., 20 Apr. 0.0305 0.0263 0.0283
19:01-20:00, Fri., 20 Apr. 0.0302 0.0263 0.0282
18:01-19:00, Fri., 20 Apr. 0.0305 0.0265 0.0280
17:01-18:00, Fri., 20 Apr. 0.0305 0.0260 0.0285
16:01-17:00, Fri., 20 Apr. 0.0305 0.0272 0.0287
15:01-16:00, Fri., 20 Apr. 0.0303 0.0258 0.0284
14:01-15:00, Fri., 20 Apr. 0.0301 0.0267 0.0284
13:01-14:00, Fri., 20 Apr. 0.0305 0.0261 0.0285
12:01-13:00, Fri., 20 Apr. 0.0309 0.0264 0.0285
11:01-12:00, Fri., 20 Apr. 0.0306 0.0263 0.0285
10:01-11:00, Fri., 20 Apr. 0.0297 0.0270 0.0285
09:01-10:00, Fri., 20 Apr. 0.0310 0.0272 0.0292
08:01-09:00, Fri., 20 Apr. 0.0308 0.0266 0.0289
07:01-08:00, Fri., 20 Apr. 0.0310 0.0272 0.0291
06:01-07:00, Fri., 20 Apr. 0.0310 0.0266 0.0288
05:01-06:00, Fri., 20 Apr. 0.0315 0.0279 0.0296
04:01-05:00, Fri., 20 Apr. 0.0313 0.0271 0.0293
03:01-04:00, Fri., 20 Apr. 0.0311 0.0266 0.0293
02:01-03:00, Fri., 20 Apr. 0.0312 0.0276 0.0295
01:01-02:00, Fri., 20 Apr. 0.0310 0.0276 0.0293
00:01-01:00, Fri., 20 Apr. 0.0313 0.0277 0.0291
23:01-24:00, Thu., 19 Apr. 0.0299 0.0267 0.0281
22:01-23:00, Thu., 19 Apr. 0.0302 0.0257 0.0281
21:01-22:00, Thu., 19 Apr. 0.0298 0.0260 0.0280
20:01-21:00, Thu., 19 Apr. 0.0305 0.0265 0.0278
19:01-20:00, Thu., 19 Apr. 0.0294 0.0258 0.0280
18:01-19:00, Thu., 19 Apr. 0.0294 0.0260 0.0277
17:01-18:00, Thu., 19 Apr. 0.0298 0.0262 0.0280
16:01-17:00, Thu., 19 Apr. 0.0298 0.0259 0.0278
15:01-16:00, Thu., 19 Apr. 0.0298 0.0262 0.0282
14:01-15:00, Thu., 19 Apr. 0.0295 0.0255 0.0280
13:01-14:00, Thu., 19 Apr. 0.0297 0.0261 0.0277
12:01-13:00, Thu., 19 Apr. 0.0296 0.0254 0.0276
11:01-12:00, Thu., 19 Apr. 0.0295 0.0260 0.0280
10:01-11:00, Thu., 19 Apr. 0.0294 0.0268 0.0280
09:01-10:00, Thu., 19 Apr. 0.0299 0.0263 0.0282
08:01-09:00, Thu., 19 Apr. 0.0304 0.0267 0.0282
07:01-08:00, Thu., 19 Apr. 0.0309 0.0265 0.0285
06:01-07:00, Thu., 19 Apr. 0.0308 0.0270 0.0288
05:01-06:00, Thu., 19 Apr. 0.0306 0.0261 0.0281
04:01-05:00, Thu., 19 Apr. 0.0297 0.0266 0.0282
03:01-04:00, Thu., 19 Apr. 0.0297 0.0262 0.0281
02:01-03:00, Thu., 19 Apr. 0.0305 0.0266 0.0283
01:01-02:00, Thu., 19 Apr. 0.0303 0.0262 0.0281
00:01-01:00, Thu., 19 Apr. 0.0304 0.0261 0.0278
23:01-24:00, Wed., 18 Apr. 0.0300 0.0253 0.0278
22:01-23:00, Wed., 18 Apr. 0.0299 0.0262 0.0276
21:01-22:00, Wed., 18 Apr. 0.0299 0.0258 0.0276
20:01-21:00, Wed., 18 Apr. 0.0296 0.0253 0.0276
19:01-20:00, Wed., 18 Apr. 0.0295 0.0256 0.0274
18:01-19:00, Wed., 18 Apr. 0.0299 0.0256 0.0275
17:01-18:00, Wed., 18 Apr. 0.0298 0.0256 0.0276
16:01-17:00, Wed., 18 Apr. 0.0290 0.0259 0.0277
15:01-16:00, Wed., 18 Apr. 0.0294 0.0258 0.0277
14:01-15:00, Wed., 18 Apr. 0.0305 0.0259 0.0282
13:01-14:00, Wed., 18 Apr. 0.0332 0.0272 0.0303
12:01-13:00, Wed., 18 Apr. 0.0405 0.0303 0.0355
11:01-12:00, Wed., 18 Apr. 0.0423 0.0356 0.0385
10:01-11:00, Wed., 18 Apr. 0.0432 0.0347 0.0386
09:01-10:00, Wed., 18 Apr. 0.0424 0.0360 0.0391
08:01-09:00, Wed., 18 Apr. 0.0390 0.0337 0.0363
07:01-08:00, Wed., 18 Apr. 0.0399 0.0332 0.0357
06:01-07:00, Wed., 18 Apr. 0.0440 0.0351 0.0381
05:01-06:00, Wed., 18 Apr. 0.0446 0.0364 0.0409
04:01-05:00, Wed., 18 Apr. 0.0474 0.0384 0.0431
03:01-04:00, Wed., 18 Apr. 0.0454 0.0371 0.0409
02:01-03:00, Wed., 18 Apr. 0.0472 0.0376 0.0419
01:01-02:00, Wed., 18 Apr. 0.0434 0.0337 0.0361
00:01-01:00, Wed., 18 Apr. 0.0414 0.0351 0.0383
23:01-24:00, Tue., 17 Apr. 0.0421 0.0349 0.0375
22:01-23:00, Tue., 17 Apr. 0.0397 0.0339 0.0361
21:01-22:00, Tue., 17 Apr. 0.0350 0.0303 0.0335
20:01-21:00, Tue., 17 Apr. 0.0354 0.0315 0.0332
19:01-20:00, Tue., 17 Apr. 0.0355 0.0286 0.0314
18:01-19:00, Tue., 17 Apr. 0.0324 0.0287 0.0305
17:01-18:00, Tue., 17 Apr. 0.0321 0.0277 0.0298
16:01-17:00, Tue., 17 Apr. 0.0317 0.0272 0.0296
15:01-16:00, Tue., 17 Apr. 0.0308 0.0272 0.0292
14:01-15:00, Tue., 17 Apr. 0.0314 0.0271 0.0292
13:01-14:00, Tue., 17 Apr. 0.0310 0.0273 0.0294
12:01-13:00, Tue., 17 Apr. 0.0309 0.0281 0.0293
11:01-12:00, Tue., 17 Apr. 0.0311 0.0272 0.0290
10:01-11:00, Tue., 17 Apr. 0.0309 0.0275 0.0290
09:01-10:00, Tue., 17 Apr. 0.0306 0.0269 0.0290
08:01-09:00, Tue., 17 Apr. 0.0310 0.0275 0.0291
07:01-08:00, Tue., 17 Apr. 0.0310 0.0275 0.0292
06:01-07:00, Tue., 17 Apr. 0.0310 0.0272 0.0293
05:01-06:00, Tue., 17 Apr. 0.0308 0.0269 0.0293
04:01-05:00, Tue., 17 Apr. 0.0311 0.0272 0.0289
03:01-04:00, Tue., 17 Apr. 0.0317 0.0270 0.0292
02:01-03:00, Tue., 17 Apr. 0.0315 0.0263 0.0295
01:01-02:00, Tue., 17 Apr. 0.0332 0.0293 0.0309
00:01-01:00, Tue., 17 Apr. 0.0359 0.0307 0.0332
23:01-24:00, Mon., 16 Apr. 0.0331 0.0264 0.0294
22:01-23:00, Mon., 16 Apr. 0.0307 0.0271 0.0289
21:01-22:00, Mon., 16 Apr. 0.0300 0.0267 0.0288
20:01-21:00, Mon., 16 Apr. 0.0305 0.0261 0.0289
19:01-20:00, Mon., 16 Apr. 0.0307 0.0272 0.0288
18:01-19:00, Mon., 16 Apr. 0.0307 0.0263 0.0287
17:01-18:00, Mon., 16 Apr. 0.0313 0.0266 0.0288
16:01-17:00, Mon., 16 Apr. 0.0315 0.0276 0.0292
15:01-16:00, Mon., 16 Apr. 0.0310 0.0272 0.0288
14:01-15:00, Mon., 16 Apr. 0.0312 0.0269 0.0290
13:01-14:00, Mon., 16 Apr. 0.0310 0.0267 0.0289
12:01-13:00, Mon., 16 Apr. 0.0306 0.0272 0.0291
11:01-12:00, Mon., 16 Apr. 0.0310 0.0270 0.0292
10:01-11:00, Mon., 16 Apr. 0.0311 0.0276 0.0294
09:01-10:00, Mon., 16 Apr. 0.0312 0.0270 0.0293
08:01-09:00, Mon., 16 Apr. 0.0310 0.0274 0.0293
07:01-08:00, Mon., 16 Apr. 0.0320 0.0276 0.0292
06:01-07:00, Mon., 16 Apr. 0.0313 0.0266 0.0293
05:01-06:00, Mon., 16 Apr. 0.0306 0.0273 0.0290
04:01-05:00, Mon., 16 Apr. 0.0311 0.0274 0.0290
03:01-04:00, Mon., 16 Apr. 0.0309 0.0271 0.0290
02:01-03:00, Mon., 16 Apr. 0.0308 0.0275 0.0291
01:01-02:00, Mon., 16 Apr. 0.0310 0.0265 0.0288
00:01-01:00, Mon., 16 Apr. 0.0315 0.0271 0.0290