Measurement results by the hour (Chofu) 26 Feb., 2018 - 4 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., 04 Mar. 0.0297 0.0258 0.0279
22:01-23:00, Sun., 04 Mar. 0.0304 0.0268 0.0280
21:01-22:00, Sun., 04 Mar. 0.0296 0.0263 0.0280
20:01-21:00, Sun., 04 Mar. 0.0299 0.0260 0.0279
19:01-20:00, Sun., 04 Mar. 0.0301 0.0259 0.0278
18:01-19:00, Sun., 04 Mar. 0.0300 0.0257 0.0278
17:01-18:00, Sun., 04 Mar. 0.0297 0.0257 0.0278
16:01-17:00, Sun., 04 Mar. 0.0298 0.0257 0.0278
15:01-16:00, Sun., 04 Mar. 0.0296 0.0259 0.0279
14:01-15:00, Sun., 04 Mar. 0.0301 0.0261 0.0279
13:01-14:00, Sun., 04 Mar. 0.0297 0.0258 0.0278
12:01-13:00, Sun., 04 Mar. 0.0299 0.0256 0.0279
11:01-12:00, Sun., 04 Mar. 0.0299 0.0257 0.0282
10:01-11:00, Sun., 04 Mar. 0.0310 0.0264 0.0283
09:01-10:00, Sun., 04 Mar. 0.0302 0.0272 0.0288
08:01-09:00, Sun., 04 Mar. 0.0320 0.0286 0.0305
07:01-08:00, Sun., 04 Mar. 0.0327 0.0285 0.0307
06:01-07:00, Sun., 04 Mar. 0.0323 0.0292 0.0309
05:01-06:00, Sun., 04 Mar. 0.0337 0.0286 0.0307
04:01-05:00, Sun., 04 Mar. 0.0326 0.0281 0.0304
03:01-04:00, Sun., 04 Mar. 0.0322 0.0285 0.0302
02:01-03:00, Sun., 04 Mar. 0.0325 0.0278 0.0301
01:01-02:00, Sun., 04 Mar. 0.0313 0.0273 0.0297
00:01-01:00, Sun., 04 Mar. 0.0319 0.0277 0.0297
23:01-24:00, Sat., 03 Mar. 0.0314 0.0271 0.0297
22:01-23:00, Sat., 03 Mar. 0.0307 0.0272 0.0290
21:01-22:00, Sat., 03 Mar. 0.0316 0.0263 0.0286
20:01-21:00, Sat., 03 Mar. 0.0301 0.0269 0.0284
19:01-20:00, Sat., 03 Mar. 0.0300 0.0266 0.0283
18:01-19:00, Sat., 03 Mar. 0.0298 0.0271 0.0283
17:01-18:00, Sat., 03 Mar. 0.0310 0.0261 0.0284
16:01-17:00, Sat., 03 Mar. 0.0299 0.0258 0.0282
15:01-16:00, Sat., 03 Mar. 0.0306 0.0263 0.0283
14:01-15:00, Sat., 03 Mar. 0.0301 0.0261 0.0282
13:01-14:00, Sat., 03 Mar. 0.0302 0.0265 0.0285
12:01-13:00, Sat., 03 Mar. 0.0304 0.0262 0.0282
11:01-12:00, Sat., 03 Mar. 0.0306 0.0267 0.0286
10:01-11:00, Sat., 03 Mar. 0.0311 0.0275 0.0293
09:01-10:00, Sat., 03 Mar. 0.0318 0.0267 0.0296
08:01-09:00, Sat., 03 Mar. 0.0320 0.0280 0.0299
07:01-08:00, Sat., 03 Mar. 0.0315 0.0283 0.0301
06:01-07:00, Sat., 03 Mar. 0.0314 0.0272 0.0297
05:01-06:00, Sat., 03 Mar. 0.0315 0.0272 0.0294
04:01-05:00, Sat., 03 Mar. 0.0312 0.0274 0.0289
03:01-04:00, Sat., 03 Mar. 0.0307 0.0265 0.0286
02:01-03:00, Sat., 03 Mar. 0.0316 0.0266 0.0284
01:01-02:00, Sat., 03 Mar. 0.0309 0.0269 0.0286
00:01-01:00, Sat., 03 Mar. 0.0309 0.0258 0.0283
23:01-24:00, Fri., 02 Mar. 0.0307 0.0264 0.0285
22:01-23:00, Fri., 02 Mar. 0.0306 0.0265 0.0284
21:01-22:00, Fri., 02 Mar. 0.0296 0.0265 0.0283
20:01-21:00, Fri., 02 Mar. 0.0299 0.0264 0.0282
19:01-20:00, Fri., 02 Mar. 0.0306 0.0262 0.0281
18:01-19:00, Fri., 02 Mar. 0.0296 0.0261 0.0281
17:01-18:00, Fri., 02 Mar. 0.0305 0.0263 0.0280
16:01-17:00, Fri., 02 Mar. 0.0303 0.0260 0.0279
15:01-16:00, Fri., 02 Mar. 0.0297 0.0265 0.0282
14:01-15:00, Fri., 02 Mar. 0.0299 0.0261 0.0281
13:01-14:00, Fri., 02 Mar. 0.0300 0.0262 0.0281
12:01-13:00, Fri., 02 Mar. 0.0300 0.0267 0.0284
11:01-12:00, Fri., 02 Mar. 0.0303 0.0268 0.0285
10:01-11:00, Fri., 02 Mar. 0.0311 0.0267 0.0287
09:01-10:00, Fri., 02 Mar. 0.0315 0.0267 0.0285
08:01-09:00, Fri., 02 Mar. 0.0305 0.0272 0.0288
07:01-08:00, Fri., 02 Mar. 0.0312 0.0269 0.0286
06:01-07:00, Fri., 02 Mar. 0.0309 0.0263 0.0286
05:01-06:00, Fri., 02 Mar. 0.0307 0.0262 0.0285
04:01-05:00, Fri., 02 Mar. 0.0307 0.0264 0.0285
03:01-04:00, Fri., 02 Mar. 0.0307 0.0269 0.0284
02:01-03:00, Fri., 02 Mar. 0.0299 0.0264 0.0284
01:01-02:00, Fri., 02 Mar. 0.0308 0.0269 0.0286
00:01-01:00, Fri., 02 Mar. 0.0301 0.0264 0.0278
23:01-24:00, Thu., 01 Mar. 0.0308 0.0255 0.0282
22:01-23:00, Thu., 01 Mar. 0.0306 0.0265 0.0284
21:01-22:00, Thu., 01 Mar. 0.0302 0.0268 0.0282
20:01-21:00, Thu., 01 Mar. 0.0299 0.0255 0.0280
19:01-20:00, Thu., 01 Mar. 0.0305 0.0262 0.0284
18:01-19:00, Thu., 01 Mar. 0.0301 0.0268 0.0282
17:01-18:00, Thu., 01 Mar. 0.0303 0.0264 0.0283
16:01-17:00, Thu., 01 Mar. 0.0301 0.0263 0.0283
15:01-16:00, Thu., 01 Mar. 0.0306 0.0262 0.0281
14:01-15:00, Thu., 01 Mar. 0.0300 0.0252 0.0281
13:01-14:00, Thu., 01 Mar. 0.0308 0.0261 0.0284
12:01-13:00, Thu., 01 Mar. 0.0310 0.0256 0.0283
11:01-12:00, Thu., 01 Mar. 0.0311 0.0271 0.0289
10:01-11:00, Thu., 01 Mar. 0.0321 0.0279 0.0296
09:01-10:00, Thu., 01 Mar. 0.0347 0.0289 0.0316
08:01-09:00, Thu., 01 Mar. 0.0403 0.0316 0.0344
07:01-08:00, Thu., 01 Mar. 0.0458 0.0349 0.0394
06:01-07:00, Thu., 01 Mar. 0.0479 0.0382 0.0427
05:01-06:00, Thu., 01 Mar. 0.0473 0.0398 0.0439
04:01-05:00, Thu., 01 Mar. 0.0486 0.0433 0.0459
03:01-04:00, Thu., 01 Mar. 0.0505 0.0419 0.0454
02:01-03:00, Thu., 01 Mar. 0.0462 0.0355 0.0404
01:01-02:00, Thu., 01 Mar. 0.0440 0.0369 0.0399
00:01-01:00, Thu., 01 Mar. 0.0435 0.0333 0.0385
23:01-24:00, Wed., 28 Feb. 0.0367 0.0294 0.0322
22:01-23:00, Wed., 28 Feb. 0.0340 0.0285 0.0314
21:01-22:00, Wed., 28 Feb. 0.0315 0.0277 0.0297
20:01-21:00, Wed., 28 Feb. 0.0316 0.0278 0.0297
19:01-20:00, Wed., 28 Feb. 0.0318 0.0276 0.0295
18:01-19:00, Wed., 28 Feb. 0.0308 0.0273 0.0293
17:01-18:00, Wed., 28 Feb. 0.0319 0.0271 0.0290
16:01-17:00, Wed., 28 Feb. 0.0312 0.0271 0.0292
15:01-16:00, Wed., 28 Feb. 0.0309 0.0274 0.0292
14:01-15:00, Wed., 28 Feb. 0.0306 0.0266 0.0291
13:01-14:00, Wed., 28 Feb. 0.0309 0.0278 0.0291
12:01-13:00, Wed., 28 Feb. 0.0317 0.0273 0.0293
11:01-12:00, Wed., 28 Feb. 0.0314 0.0283 0.0297
10:01-11:00, Wed., 28 Feb. 0.0316 0.0279 0.0299
09:01-10:00, Wed., 28 Feb. 0.0326 0.0278 0.0303
08:01-09:00, Wed., 28 Feb. 0.0333 0.0295 0.0312
07:01-08:00, Wed., 28 Feb. 0.0338 0.0299 0.0318
06:01-07:00, Wed., 28 Feb. 0.0334 0.0297 0.0316
05:01-06:00, Wed., 28 Feb. 0.0336 0.0298 0.0316
04:01-05:00, Wed., 28 Feb. 0.0332 0.0292 0.0313
03:01-04:00, Wed., 28 Feb. 0.0333 0.0286 0.0309
02:01-03:00, Wed., 28 Feb. 0.0328 0.0288 0.0311
01:01-02:00, Wed., 28 Feb. 0.0332 0.0291 0.0307
00:01-01:00, Wed., 28 Feb. 0.0322 0.0272 0.0296
23:01-24:00, Tue., 27 Feb. 0.0314 0.0279 0.0296
22:01-23:00, Tue., 27 Feb. 0.0312 0.0283 0.0297
21:01-22:00, Tue., 27 Feb. 0.0321 0.0272 0.0294
20:01-21:00, Tue., 27 Feb. 0.0309 0.0278 0.0292
19:01-20:00, Tue., 27 Feb. 0.0305 0.0269 0.0289
18:01-19:00, Tue., 27 Feb. 0.0310 0.0271 0.0289
17:01-18:00, Tue., 27 Feb. 0.0319 0.0269 0.0289
16:01-17:00, Tue., 27 Feb. 0.0309 0.0267 0.0289
15:01-16:00, Tue., 27 Feb. 0.0310 0.0272 0.0288
14:01-15:00, Tue., 27 Feb. 0.0312 0.0273 0.0290
13:01-14:00, Tue., 27 Feb. 0.0312 0.0268 0.0289
12:01-13:00, Tue., 27 Feb. 0.0307 0.0269 0.0291
11:01-12:00, Tue., 27 Feb. 0.0312 0.0272 0.0291
10:01-11:00, Tue., 27 Feb. 0.0320 0.0270 0.0293
09:01-10:00, Tue., 27 Feb. 0.0310 0.0277 0.0294
08:01-09:00, Tue., 27 Feb. 0.0311 0.0271 0.0294
07:01-08:00, Tue., 27 Feb. 0.0319 0.0281 0.0294
06:01-07:00, Tue., 27 Feb. 0.0325 0.0271 0.0296
05:01-06:00, Tue., 27 Feb. 0.0304 0.0273 0.0291
04:01-05:00, Tue., 27 Feb. 0.0310 0.0277 0.0293
03:01-04:00, Tue., 27 Feb. 0.0312 0.0274 0.0292
02:01-03:00, Tue., 27 Feb. 0.0314 0.0269 0.0289
01:01-02:00, Tue., 27 Feb. 0.0324 0.0272 0.0291
00:01-01:00, Tue., 27 Feb. 0.0310 0.0277 0.0290
23:01-24:00, Mon., 26 Feb. 0.0313 0.0271 0.0290
22:01-23:00, Mon., 26 Feb. 0.0314 0.0270 0.0290
21:01-22:00, Mon., 26 Feb. 0.0305 0.0266 0.0289
20:01-21:00, Mon., 26 Feb. 0.0305 0.0273 0.0288
19:01-20:00, Mon., 26 Feb. 0.0306 0.0272 0.0290
18:01-19:00, Mon., 26 Feb. 0.0305 0.0270 0.0289
17:01-18:00, Mon., 26 Feb. 0.0305 0.0270 0.0287
16:01-17:00, Mon., 26 Feb. 0.0309 0.0264 0.0290
15:01-16:00, Mon., 26 Feb. 0.0311 0.0271 0.0290
14:01-15:00, Mon., 26 Feb. 0.0310 0.0274 0.0289
13:01-14:00, Mon., 26 Feb. 0.0309 0.0264 0.0291
12:01-13:00, Mon., 26 Feb. 0.0317 0.0286 0.0297
11:01-12:00, Mon., 26 Feb. 0.0314 0.0275 0.0298
10:01-11:00, Mon., 26 Feb. 0.0325 0.0283 0.0303
09:01-10:00, Mon., 26 Feb. 0.0320 0.0283 0.0302
08:01-09:00, Mon., 26 Feb. 0.0332 0.0282 0.0302
07:01-08:00, Mon., 26 Feb. 0.0317 0.0276 0.0299
06:01-07:00, Mon., 26 Feb. 0.0321 0.0275 0.0299
05:01-06:00, Mon., 26 Feb. 0.0319 0.0284 0.0299
04:01-05:00, Mon., 26 Feb. 0.0326 0.0280 0.0299
03:01-04:00, Mon., 26 Feb. 0.0317 0.0279 0.0298
02:01-03:00, Mon., 26 Feb. 0.0323 0.0274 0.0295
01:01-02:00, Mon., 26 Feb. 0.0308 0.0275 0.0291
00:01-01:00, Mon., 26 Feb. 0.0320 0.0273 0.0292