Measurement results by the hour (Chofu) 19 Feb., 2018 - 25 Feb., 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 Feb. 0.0308 0.0267 0.0291
22:01-23:00, Sun., 25 Feb. 0.0308 0.0272 0.0292
21:01-22:00, Sun., 25 Feb. 0.0316 0.0270 0.0291
20:01-21:00, Sun., 25 Feb. 0.0311 0.0270 0.0288
19:01-20:00, Sun., 25 Feb. 0.0310 0.0269 0.0291
18:01-19:00, Sun., 25 Feb. 0.0317 0.0265 0.0290
17:01-18:00, Sun., 25 Feb. 0.0308 0.0265 0.0288
16:01-17:00, Sun., 25 Feb. 0.0309 0.0270 0.0289
15:01-16:00, Sun., 25 Feb. 0.0302 0.0268 0.0287
14:01-15:00, Sun., 25 Feb. 0.0318 0.0271 0.0290
13:01-14:00, Sun., 25 Feb. 0.0312 0.0273 0.0291
12:01-13:00, Sun., 25 Feb. 0.0310 0.0271 0.0290
11:01-12:00, Sun., 25 Feb. 0.0305 0.0274 0.0289
10:01-11:00, Sun., 25 Feb. 0.0307 0.0276 0.0291
09:01-10:00, Sun., 25 Feb. 0.0308 0.0272 0.0292
08:01-09:00, Sun., 25 Feb. 0.0313 0.0270 0.0292
07:01-08:00, Sun., 25 Feb. 0.0314 0.0266 0.0294
06:01-07:00, Sun., 25 Feb. 0.0311 0.0272 0.0291
05:01-06:00, Sun., 25 Feb. 0.0310 0.0275 0.0293
04:01-05:00, Sun., 25 Feb. 0.0310 0.0278 0.0293
03:01-04:00, Sun., 25 Feb. 0.0313 0.0273 0.0293
02:01-03:00, Sun., 25 Feb. 0.0313 0.0273 0.0293
01:01-02:00, Sun., 25 Feb. 0.0311 0.0275 0.0293
00:01-01:00, Sun., 25 Feb. 0.0318 0.0269 0.0290
23:01-24:00, Sat., 24 Feb. 0.0313 0.0274 0.0293
22:01-23:00, Sat., 24 Feb. 0.0310 0.0263 0.0293
21:01-22:00, Sat., 24 Feb. 0.0309 0.0277 0.0291
20:01-21:00, Sat., 24 Feb. 0.0309 0.0272 0.0291
19:01-20:00, Sat., 24 Feb. 0.0315 0.0272 0.0292
18:01-19:00, Sat., 24 Feb. 0.0308 0.0275 0.0290
17:01-18:00, Sat., 24 Feb. 0.0306 0.0265 0.0287
16:01-17:00, Sat., 24 Feb. 0.0316 0.0275 0.0290
15:01-16:00, Sat., 24 Feb. 0.0310 0.0268 0.0292
14:01-15:00, Sat., 24 Feb. 0.0311 0.0271 0.0288
13:01-14:00, Sat., 24 Feb. 0.0309 0.0275 0.0293
12:01-13:00, Sat., 24 Feb. 0.0312 0.0269 0.0292
11:01-12:00, Sat., 24 Feb. 0.0321 0.0271 0.0295
10:01-11:00, Sat., 24 Feb. 0.0316 0.0275 0.0296
09:01-10:00, Sat., 24 Feb. 0.0332 0.0278 0.0303
08:01-09:00, Sat., 24 Feb. 0.0335 0.0299 0.0316
07:01-08:00, Sat., 24 Feb. 0.0344 0.0299 0.0316
06:01-07:00, Sat., 24 Feb. 0.0334 0.0298 0.0316
05:01-06:00, Sat., 24 Feb. 0.0327 0.0293 0.0312
04:01-05:00, Sat., 24 Feb. 0.0334 0.0279 0.0312
03:01-04:00, Sat., 24 Feb. 0.0343 0.0292 0.0314
02:01-03:00, Sat., 24 Feb. 0.0327 0.0293 0.0311
01:01-02:00, Sat., 24 Feb. 0.0344 0.0292 0.0310
00:01-01:00, Sat., 24 Feb. 0.0329 0.0288 0.0307
23:01-24:00, Fri., 23 Feb. 0.0330 0.0293 0.0309
22:01-23:00, Fri., 23 Feb. 0.0321 0.0286 0.0303
21:01-22:00, Fri., 23 Feb. 0.0319 0.0281 0.0300
20:01-21:00, Fri., 23 Feb. 0.0319 0.0272 0.0292
19:01-20:00, Fri., 23 Feb. 0.0310 0.0271 0.0288
18:01-19:00, Fri., 23 Feb. 0.0312 0.0272 0.0291
17:01-18:00, Fri., 23 Feb. 0.0310 0.0258 0.0287
16:01-17:00, Fri., 23 Feb. 0.0302 0.0269 0.0287
15:01-16:00, Fri., 23 Feb. 0.0316 0.0274 0.0290
14:01-15:00, Fri., 23 Feb. 0.0312 0.0267 0.0289
13:01-14:00, Fri., 23 Feb. 0.0305 0.0267 0.0287
12:01-13:00, Fri., 23 Feb. 0.0311 0.0272 0.0287
11:01-12:00, Fri., 23 Feb. 0.0319 0.0273 0.0296
10:01-11:00, Fri., 23 Feb. 0.0326 0.0282 0.0305
09:01-10:00, Fri., 23 Feb. 0.0326 0.0284 0.0303
08:01-09:00, Fri., 23 Feb. 0.0339 0.0289 0.0315
07:01-08:00, Fri., 23 Feb. 0.0309 0.0267 0.0293
06:01-07:00, Fri., 23 Feb. 0.0320 0.0281 0.0297
05:01-06:00, Fri., 23 Feb. 0.0325 0.0277 0.0301
04:01-05:00, Fri., 23 Feb. 0.0309 0.0273 0.0291
03:01-04:00, Fri., 23 Feb. 0.0308 0.0271 0.0288
02:01-03:00, Fri., 23 Feb. 0.0307 0.0269 0.0288
01:01-02:00, Fri., 23 Feb. 0.0313 0.0270 0.0290
00:01-01:00, Fri., 23 Feb. 0.0310 0.0272 0.0290
23:01-24:00, Thu., 22 Feb. 0.0314 0.0269 0.0292
22:01-23:00, Thu., 22 Feb. 0.0322 0.0277 0.0304
21:01-22:00, Thu., 22 Feb. 0.0322 0.0281 0.0303
20:01-21:00, Thu., 22 Feb. 0.0327 0.0286 0.0307
19:01-20:00, Thu., 22 Feb. 0.0335 0.0289 0.0308
18:01-19:00, Thu., 22 Feb. 0.0322 0.0289 0.0304
17:01-18:00, Thu., 22 Feb. 0.0325 0.0276 0.0300
16:01-17:00, Thu., 22 Feb. 0.0314 0.0283 0.0298
15:01-16:00, Thu., 22 Feb. 0.0315 0.0281 0.0298
14:01-15:00, Thu., 22 Feb. 0.0318 0.0284 0.0301
13:01-14:00, Thu., 22 Feb. 0.0325 0.0280 0.0298
12:01-13:00, Thu., 22 Feb. 0.0318 0.0275 0.0297
11:01-12:00, Thu., 22 Feb. 0.0338 0.0285 0.0309
10:01-11:00, Thu., 22 Feb. 0.0326 0.0285 0.0303
09:01-10:00, Thu., 22 Feb. 0.0329 0.0287 0.0307
08:01-09:00, Thu., 22 Feb. 0.0331 0.0293 0.0316
07:01-08:00, Thu., 22 Feb. 0.0327 0.0287 0.0310
06:01-07:00, Thu., 22 Feb. 0.0329 0.0290 0.0311
05:01-06:00, Thu., 22 Feb. 0.0320 0.0286 0.0303
04:01-05:00, Thu., 22 Feb. 0.0322 0.0280 0.0302
03:01-04:00, Thu., 22 Feb. 0.0316 0.0275 0.0296
02:01-03:00, Thu., 22 Feb. 0.0318 0.0263 0.0295
01:01-02:00, Thu., 22 Feb. 0.0325 0.0275 0.0295
00:01-01:00, Thu., 22 Feb. 0.0310 0.0277 0.0292
23:01-24:00, Wed., 21 Feb. 0.0322 0.0271 0.0294
22:01-23:00, Wed., 21 Feb. 0.0311 0.0280 0.0294
21:01-22:00, Wed., 21 Feb. 0.0310 0.0270 0.0291
20:01-21:00, Wed., 21 Feb. 0.0307 0.0269 0.0291
19:01-20:00, Wed., 21 Feb. 0.0311 0.0274 0.0290
18:01-19:00, Wed., 21 Feb. 0.0312 0.0275 0.0292
17:01-18:00, Wed., 21 Feb. 0.0317 0.0270 0.0295
16:01-17:00, Wed., 21 Feb. 0.0304 0.0273 0.0290
15:01-16:00, Wed., 21 Feb. 0.0314 0.0276 0.0293
14:01-15:00, Wed., 21 Feb. 0.0308 0.0274 0.0292
13:01-14:00, Wed., 21 Feb. 0.0313 0.0272 0.0292
12:01-13:00, Wed., 21 Feb. 0.0323 0.0272 0.0293
11:01-12:00, Wed., 21 Feb. 0.0322 0.0276 0.0295
10:01-11:00, Wed., 21 Feb. 0.0311 0.0282 0.0297
09:01-10:00, Wed., 21 Feb. 0.0319 0.0267 0.0297
08:01-09:00, Wed., 21 Feb. 0.0314 0.0275 0.0296
07:01-08:00, Wed., 21 Feb. 0.0315 0.0278 0.0297
06:01-07:00, Wed., 21 Feb. 0.0319 0.0278 0.0295
05:01-06:00, Wed., 21 Feb. 0.0310 0.0271 0.0295
04:01-05:00, Wed., 21 Feb. 0.0317 0.0278 0.0296
03:01-04:00, Wed., 21 Feb. 0.0319 0.0275 0.0298
02:01-03:00, Wed., 21 Feb. 0.0332 0.0280 0.0301
01:01-02:00, Wed., 21 Feb. 0.0324 0.0267 0.0295
00:01-01:00, Wed., 21 Feb. 0.0315 0.0279 0.0295
23:01-24:00, Tue., 20 Feb. 0.0321 0.0281 0.0299
22:01-23:00, Tue., 20 Feb. 0.0316 0.0273 0.0297
21:01-22:00, Tue., 20 Feb. 0.0312 0.0271 0.0292
20:01-21:00, Tue., 20 Feb. 0.0314 0.0268 0.0291
19:01-20:00, Tue., 20 Feb. 0.0313 0.0274 0.0292
18:01-19:00, Tue., 20 Feb. 0.0317 0.0263 0.0289
17:01-18:00, Tue., 20 Feb. 0.0306 0.0268 0.0287
16:01-17:00, Tue., 20 Feb. 0.0314 0.0273 0.0291
15:01-16:00, Tue., 20 Feb. 0.0318 0.0268 0.0292
14:01-15:00, Tue., 20 Feb. 0.0310 0.0274 0.0292
13:01-14:00, Tue., 20 Feb. 0.0320 0.0281 0.0297
12:01-13:00, Tue., 20 Feb. 0.0308 0.0277 0.0294
11:01-12:00, Tue., 20 Feb. 0.0318 0.0278 0.0296
10:01-11:00, Tue., 20 Feb. 0.0321 0.0280 0.0299
09:01-10:00, Tue., 20 Feb. 0.0331 0.0281 0.0300
08:01-09:00, Tue., 20 Feb. 0.0326 0.0280 0.0305
07:01-08:00, Tue., 20 Feb. 0.0315 0.0283 0.0300
06:01-07:00, Tue., 20 Feb. 0.0314 0.0275 0.0298
05:01-06:00, Tue., 20 Feb. 0.0321 0.0274 0.0297
04:01-05:00, Tue., 20 Feb. 0.0315 0.0271 0.0294
03:01-04:00, Tue., 20 Feb. 0.0316 0.0276 0.0295
02:01-03:00, Tue., 20 Feb. 0.0317 0.0276 0.0299
01:01-02:00, Tue., 20 Feb. 0.0327 0.0280 0.0299
00:01-01:00, Tue., 20 Feb. 0.0321 0.0279 0.0300
23:01-24:00, Mon., 19 Feb. 0.0324 0.0282 0.0298
22:01-23:00, Mon., 19 Feb. 0.0308 0.0277 0.0295
21:01-22:00, Mon., 19 Feb. 0.0307 0.0271 0.0291
20:01-21:00, Mon., 19 Feb. 0.0306 0.0273 0.0291
19:01-20:00, Mon., 19 Feb. 0.0310 0.0272 0.0289
18:01-19:00, Mon., 19 Feb. 0.0316 0.0266 0.0288
17:01-18:00, Mon., 19 Feb. 0.0308 0.0270 0.0289
16:01-17:00, Mon., 19 Feb. 0.0314 0.0271 0.0290
15:01-16:00, Mon., 19 Feb. 0.0307 0.0272 0.0288
14:01-15:00, Mon., 19 Feb. 0.0307 0.0269 0.0290
13:01-14:00, Mon., 19 Feb. 0.0313 0.0274 0.0290
12:01-13:00, Mon., 19 Feb. 0.0317 0.0276 0.0295
11:01-12:00, Mon., 19 Feb. 0.0318 0.0277 0.0296
10:01-11:00, Mon., 19 Feb. 0.0322 0.0279 0.0299
09:01-10:00, Mon., 19 Feb. 0.0321 0.0279 0.0299
08:01-09:00, Mon., 19 Feb. 0.0321 0.0282 0.0300
07:01-08:00, Mon., 19 Feb. 0.0326 0.0281 0.0301
06:01-07:00, Mon., 19 Feb. 0.0314 0.0283 0.0297
05:01-06:00, Mon., 19 Feb. 0.0323 0.0275 0.0297
04:01-05:00, Mon., 19 Feb. 0.0310 0.0279 0.0294
03:01-04:00, Mon., 19 Feb. 0.0309 0.0273 0.0292
02:01-03:00, Mon., 19 Feb. 0.0303 0.0269 0.0290
01:01-02:00, Mon., 19 Feb. 0.0311 0.0274 0.0291
00:01-01:00, Mon., 19 Feb. 0.0310 0.0270 0.0290