Measurement results by the hour (Chofu) 16 Sep., 2024 - 22 Sep., 2024

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 Sep. 0.0305 0.0258 0.0281
22:01-23:00, Sun., 22 Sep. 0.0307 0.0263 0.0282
21:01-22:00, Sun., 22 Sep. 0.0309 0.0270 0.0286
20:01-21:00, Sun., 22 Sep. 0.0308 0.0264 0.0284
19:01-20:00, Sun., 22 Sep. 0.0307 0.0266 0.0285
18:01-19:00, Sun., 22 Sep. 0.0306 0.0264 0.0285
17:01-18:00, Sun., 22 Sep. 0.0316 0.0265 0.0290
16:01-17:00, Sun., 22 Sep. 0.0323 0.0276 0.0295
15:01-16:00, Sun., 22 Sep. 0.0323 0.0276 0.0302
14:01-15:00, Sun., 22 Sep. 0.0332 0.0268 0.0305
13:01-14:00, Sun., 22 Sep. 0.0335 0.0282 0.0309
12:01-13:00, Sun., 22 Sep. 0.0324 0.0274 0.0292
11:01-12:00, Sun., 22 Sep. 0.0329 0.0283 0.0301
10:01-11:00, Sun., 22 Sep. 0.0346 0.0300 0.0322
09:01-10:00, Sun., 22 Sep. 0.0322 0.0273 0.0296
08:01-09:00, Sun., 22 Sep. 0.0317 0.0263 0.0289
07:01-08:00, Sun., 22 Sep. 0.0306 0.0263 0.0288
06:01-07:00, Sun., 22 Sep. 0.0315 0.0265 0.0289
05:01-06:00, Sun., 22 Sep. 0.0314 0.0272 0.0293
04:01-05:00, Sun., 22 Sep. 0.0304 0.0265 0.0282
03:01-04:00, Sun., 22 Sep. 0.0306 0.0264 0.0285
02:01-03:00, Sun., 22 Sep. 0.0309 0.0264 0.0286
01:01-02:00, Sun., 22 Sep. 0.0302 0.0265 0.0285
00:01-01:00, Sun., 22 Sep. 0.0305 0.0263 0.0284
23:01-24:00, Sat., 21 Sep. 0.0313 0.0268 0.0285
22:01-23:00, Sat., 21 Sep. 0.0304 0.0264 0.0287
21:01-22:00, Sat., 21 Sep. 0.0301 0.0268 0.0283
20:01-21:00, Sat., 21 Sep. 0.0305 0.0257 0.0284
19:01-20:00, Sat., 21 Sep. 0.0307 0.0260 0.0286
18:01-19:00, Sat., 21 Sep. 0.0314 0.0262 0.0285
17:01-18:00, Sat., 21 Sep. 0.0306 0.0267 0.0284
16:01-17:00, Sat., 21 Sep. 0.0313 0.0264 0.0289
15:01-16:00, Sat., 21 Sep. 0.0310 0.0267 0.0290
14:01-15:00, Sat., 21 Sep. 0.0316 0.0275 0.0292
13:01-14:00, Sat., 21 Sep. 0.0325 0.0269 0.0299
12:01-13:00, Sat., 21 Sep. 0.0323 0.0278 0.0300
11:01-12:00, Sat., 21 Sep. 0.0325 0.0282 0.0303
10:01-11:00, Sat., 21 Sep. 0.0319 0.0265 0.0292
09:01-10:00, Sat., 21 Sep. 0.0324 0.0260 0.0289
08:01-09:00, Sat., 21 Sep. 0.0330 0.0287 0.0310
07:01-08:00, Sat., 21 Sep. 0.0333 0.0286 0.0312
06:01-07:00, Sat., 21 Sep. 0.0348 0.0286 0.0315
05:01-06:00, Sat., 21 Sep. 0.0340 0.0286 0.0304
04:01-05:00, Sat., 21 Sep. 0.0326 0.0286 0.0306
03:01-04:00, Sat., 21 Sep. 0.0331 0.0283 0.0306
02:01-03:00, Sat., 21 Sep. 0.0343 0.0276 0.0307
01:01-02:00, Sat., 21 Sep. 0.0321 0.0266 0.0295
00:01-01:00, Sat., 21 Sep. 0.0315 0.0270 0.0288
23:01-24:00, Fri., 20 Sep. 0.0313 0.0273 0.0290
22:01-23:00, Fri., 20 Sep. 0.0307 0.0274 0.0290
21:01-22:00, Fri., 20 Sep. 0.0319 0.0269 0.0296
20:01-21:00, Fri., 20 Sep. 0.0319 0.0274 0.0299
19:01-20:00, Fri., 20 Sep. 0.0322 0.0270 0.0290
18:01-19:00, Fri., 20 Sep. 0.0303 0.0264 0.0287
17:01-18:00, Fri., 20 Sep. 0.0310 0.0268 0.0284
16:01-17:00, Fri., 20 Sep. 0.0312 0.0263 0.0288
15:01-16:00, Fri., 20 Sep. 0.0308 0.0264 0.0288
14:01-15:00, Fri., 20 Sep. 0.0319 0.0265 0.0291
13:01-14:00, Fri., 20 Sep. 0.0311 0.0269 0.0292
12:01-13:00, Fri., 20 Sep. 0.0308 0.0273 0.0290
11:01-12:00, Fri., 20 Sep. 0.0306 0.0266 0.0290
10:01-11:00, Fri., 20 Sep. 0.0311 0.0273 0.0294
09:01-10:00, Fri., 20 Sep. 0.0314 0.0273 0.0295
08:01-09:00, Fri., 20 Sep. 0.0315 0.0276 0.0296
07:01-08:00, Fri., 20 Sep. 0.0345 0.0280 0.0306
06:01-07:00, Fri., 20 Sep. 0.0327 0.0287 0.0306
05:01-06:00, Fri., 20 Sep. 0.0322 0.0282 0.0301
04:01-05:00, Fri., 20 Sep. 0.0315 0.0273 0.0295
03:01-04:00, Fri., 20 Sep. 0.0320 0.0276 0.0293
02:01-03:00, Fri., 20 Sep. 0.0322 0.0265 0.0299
01:01-02:00, Fri., 20 Sep. 0.0324 0.0263 0.0292
00:01-01:00, Fri., 20 Sep. 0.0311 0.0266 0.0289
23:01-24:00, Thu., 19 Sep. 0.0305 0.0264 0.0286
22:01-23:00, Thu., 19 Sep. 0.0305 0.0263 0.0284
21:01-22:00, Thu., 19 Sep. 0.0304 0.0263 0.0285
20:01-21:00, Thu., 19 Sep. 0.0310 0.0260 0.0284
19:01-20:00, Thu., 19 Sep. 0.0314 0.0270 0.0288
18:01-19:00, Thu., 19 Sep. 0.0351 0.0277 0.0308
17:01-18:00, Thu., 19 Sep. 0.0423 0.0322 0.0369
16:01-17:00, Thu., 19 Sep. 0.0447 0.0365 0.0405
15:01-16:00, Thu., 19 Sep. 0.0384 0.0270 0.0317
14:01-15:00, Thu., 19 Sep. 0.0309 0.0276 0.0291
13:01-14:00, Thu., 19 Sep. 0.0318 0.0273 0.0293
12:01-13:00, Thu., 19 Sep. 0.0315 0.0267 0.0293
11:01-12:00, Thu., 19 Sep. 0.0317 0.0269 0.0294
10:01-11:00, Thu., 19 Sep. 0.0314 0.0273 0.0297
09:01-10:00, Thu., 19 Sep. 0.0318 0.0273 0.0298
08:01-09:00, Thu., 19 Sep. 0.0318 0.0276 0.0297
07:01-08:00, Thu., 19 Sep. 0.0315 0.0271 0.0297
06:01-07:00, Thu., 19 Sep. 0.0315 0.0282 0.0298
05:01-06:00, Thu., 19 Sep. 0.0315 0.0268 0.0292
04:01-05:00, Thu., 19 Sep. 0.0315 0.0262 0.0291
03:01-04:00, Thu., 19 Sep. 0.0311 0.0270 0.0288
02:01-03:00, Thu., 19 Sep. 0.0311 0.0258 0.0287
01:01-02:00, Thu., 19 Sep. 0.0304 0.0266 0.0285
00:01-01:00, Thu., 19 Sep. 0.0316 0.0267 0.0285
23:01-24:00, Wed., 18 Sep. 0.0301 0.0266 0.0284
22:01-23:00, Wed., 18 Sep. 0.0304 0.0263 0.0285
21:01-22:00, Wed., 18 Sep. 0.0311 0.0262 0.0291
20:01-21:00, Wed., 18 Sep. 0.0332 0.0280 0.0304
19:01-20:00, Wed., 18 Sep. 0.0334 0.0282 0.0305
18:01-19:00, Wed., 18 Sep. 0.0328 0.0284 0.0305
17:01-18:00, Wed., 18 Sep. 0.0341 0.0288 0.0314
16:01-17:00, Wed., 18 Sep. 0.0355 0.0299 0.0326
15:01-16:00, Wed., 18 Sep. 0.0370 0.0293 0.0331
14:01-15:00, Wed., 18 Sep. 0.0307 0.0254 0.0285
13:01-14:00, Wed., 18 Sep. 0.0300 0.0264 0.0284
12:01-13:00, Wed., 18 Sep. 0.0308 0.0267 0.0286
11:01-12:00, Wed., 18 Sep. 0.0311 0.0266 0.0289
10:01-11:00, Wed., 18 Sep. 0.0314 0.0266 0.0289
09:01-10:00, Wed., 18 Sep. 0.0308 0.0267 0.0287
08:01-09:00, Wed., 18 Sep. 0.0312 0.0272 0.0296
07:01-08:00, Wed., 18 Sep. 0.0322 0.0274 0.0297
06:01-07:00, Wed., 18 Sep. 0.0315 0.0283 0.0298
05:01-06:00, Wed., 18 Sep. 0.0321 0.0279 0.0299
04:01-05:00, Wed., 18 Sep. 0.0343 0.0273 0.0297
03:01-04:00, Wed., 18 Sep. 0.0324 0.0276 0.0299
02:01-03:00, Wed., 18 Sep. 0.0332 0.0284 0.0305
01:01-02:00, Wed., 18 Sep. 0.0325 0.0276 0.0296
00:01-01:00, Wed., 18 Sep. 0.0303 0.0266 0.0286
23:01-24:00, Tue., 17 Sep. 0.0307 0.0262 0.0280
22:01-23:00, Tue., 17 Sep. 0.0297 0.0253 0.0281
21:01-22:00, Tue., 17 Sep. 0.0307 0.0258 0.0278
20:01-21:00, Tue., 17 Sep. 0.0298 0.0252 0.0277
19:01-20:00, Tue., 17 Sep. 0.0303 0.0252 0.0276
18:01-19:00, Tue., 17 Sep. 0.0307 0.0256 0.0277
17:01-18:00, Tue., 17 Sep. 0.0293 0.0249 0.0276
16:01-17:00, Tue., 17 Sep. 0.0299 0.0257 0.0275
15:01-16:00, Tue., 17 Sep. 0.0301 0.0261 0.0282
14:01-15:00, Tue., 17 Sep. 0.0298 0.0263 0.0280
13:01-14:00, Tue., 17 Sep. 0.0301 0.0265 0.0281
12:01-13:00, Tue., 17 Sep. 0.0308 0.0263 0.0281
11:01-12:00, Tue., 17 Sep. 0.0309 0.0262 0.0281
10:01-11:00, Tue., 17 Sep. 0.0297 0.0261 0.0280
09:01-10:00, Tue., 17 Sep. 0.0303 0.0263 0.0280
08:01-09:00, Tue., 17 Sep. 0.0301 0.0262 0.0280
07:01-08:00, Tue., 17 Sep. 0.0300 0.0257 0.0279
06:01-07:00, Tue., 17 Sep. 0.0297 0.0262 0.0281
05:01-06:00, Tue., 17 Sep. 0.0300 0.0264 0.0281
04:01-05:00, Tue., 17 Sep. 0.0304 0.0263 0.0282
03:01-04:00, Tue., 17 Sep. 0.0297 0.0260 0.0278
02:01-03:00, Tue., 17 Sep. 0.0301 0.0259 0.0279
01:01-02:00, Tue., 17 Sep. 0.0298 0.0253 0.0279
00:01-01:00, Tue., 17 Sep. 0.0302 0.0262 0.0281
23:01-24:00, Mon., 16 Sep. 0.0306 0.0258 0.0277
22:01-23:00, Mon., 16 Sep. 0.0297 0.0260 0.0279
21:01-22:00, Mon., 16 Sep. 0.0304 0.0259 0.0279
20:01-21:00, Mon., 16 Sep. 0.0301 0.0262 0.0280
19:01-20:00, Mon., 16 Sep. 0.0295 0.0261 0.0276
18:01-19:00, Mon., 16 Sep. 0.0301 0.0256 0.0278
17:01-18:00, Mon., 16 Sep. 0.0300 0.0259 0.0279
16:01-17:00, Mon., 16 Sep. 0.0295 0.0256 0.0275
15:01-16:00, Mon., 16 Sep. 0.0299 0.0254 0.0276
14:01-15:00, Mon., 16 Sep. 0.0301 0.0263 0.0277
13:01-14:00, Mon., 16 Sep. 0.0292 0.0262 0.0276
12:01-13:00, Mon., 16 Sep. 0.0297 0.0252 0.0277
11:01-12:00, Mon., 16 Sep. 0.0312 0.0259 0.0280
10:01-11:00, Mon., 16 Sep. 0.0303 0.0262 0.0281
09:01-10:00, Mon., 16 Sep. 0.0299 0.0259 0.0281
08:01-09:00, Mon., 16 Sep. 0.0308 0.0267 0.0285
07:01-08:00, Mon., 16 Sep. 0.0298 0.0255 0.0275
06:01-07:00, Mon., 16 Sep. 0.0293 0.0259 0.0275
05:01-06:00, Mon., 16 Sep. 0.0298 0.0258 0.0277
04:01-05:00, Mon., 16 Sep. 0.0292 0.0254 0.0275
03:01-04:00, Mon., 16 Sep. 0.0314 0.0255 0.0283
02:01-03:00, Mon., 16 Sep. 0.0323 0.0273 0.0301
01:01-02:00, Mon., 16 Sep. 0.0395 0.0310 0.0348
00:01-01:00, Mon., 16 Sep. 0.0384 0.0325 0.0354