Measurement results by the hour (Chofu) 5 Feb., 2024 - 11 Feb., 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., 11 Feb. 0.0393 0.0286 0.0332
22:01-23:00, Sun., 11 Feb. 0.0319 0.0278 0.0294
21:01-22:00, Sun., 11 Feb. 0.0311 0.0265 0.0283
20:01-21:00, Sun., 11 Feb. 0.0304 0.0256 0.0283
19:01-20:00, Sun., 11 Feb. 0.0308 0.0256 0.0283
18:01-19:00, Sun., 11 Feb. 0.0307 0.0262 0.0282
17:01-18:00, Sun., 11 Feb. 0.0302 0.0263 0.0280
16:01-17:00, Sun., 11 Feb. 0.0301 0.0250 0.0278
15:01-16:00, Sun., 11 Feb. 0.0315 0.0264 0.0283
14:01-15:00, Sun., 11 Feb. 0.0310 0.0268 0.0287
13:01-14:00, Sun., 11 Feb. 0.0306 0.0269 0.0286
12:01-13:00, Sun., 11 Feb. 0.0301 0.0263 0.0286
11:01-12:00, Sun., 11 Feb. 0.0301 0.0264 0.0284
10:01-11:00, Sun., 11 Feb. 0.0308 0.0266 0.0286
09:01-10:00, Sun., 11 Feb. 0.0310 0.0269 0.0288
08:01-09:00, Sun., 11 Feb. 0.0317 0.0272 0.0289
07:01-08:00, Sun., 11 Feb. 0.0322 0.0266 0.0290
06:01-07:00, Sun., 11 Feb. 0.0319 0.0270 0.0290
05:01-06:00, Sun., 11 Feb. 0.0323 0.0276 0.0294
04:01-05:00, Sun., 11 Feb. 0.0318 0.0271 0.0294
03:01-04:00, Sun., 11 Feb. 0.0327 0.0271 0.0300
02:01-03:00, Sun., 11 Feb. 0.0321 0.0272 0.0292
01:01-02:00, Sun., 11 Feb. 0.0303 0.0263 0.0284
00:01-01:00, Sun., 11 Feb. 0.0301 0.0267 0.0284
23:01-24:00, Sat., 10 Feb. 0.0298 0.0263 0.0282
22:01-23:00, Sat., 10 Feb. 0.0298 0.0265 0.0285
21:01-22:00, Sat., 10 Feb. 0.0313 0.0267 0.0287
20:01-21:00, Sat., 10 Feb. 0.0295 0.0263 0.0281
19:01-20:00, Sat., 10 Feb. 0.0297 0.0261 0.0277
18:01-19:00, Sat., 10 Feb. 0.0306 0.0254 0.0278
17:01-18:00, Sat., 10 Feb. 0.0301 0.0256 0.0279
16:01-17:00, Sat., 10 Feb. 0.0299 0.0252 0.0278
15:01-16:00, Sat., 10 Feb. 0.0294 0.0257 0.0278
14:01-15:00, Sat., 10 Feb. 0.0313 0.0257 0.0279
13:01-14:00, Sat., 10 Feb. 0.0306 0.0263 0.0283
12:01-13:00, Sat., 10 Feb. 0.0309 0.0268 0.0287
11:01-12:00, Sat., 10 Feb. 0.0301 0.0269 0.0286
10:01-11:00, Sat., 10 Feb. 0.0309 0.0271 0.0289
09:01-10:00, Sat., 10 Feb. 0.0318 0.0276 0.0293
08:01-09:00, Sat., 10 Feb. 0.0326 0.0276 0.0305
07:01-08:00, Sat., 10 Feb. 0.0323 0.0273 0.0304
06:01-07:00, Sat., 10 Feb. 0.0325 0.0273 0.0299
05:01-06:00, Sat., 10 Feb. 0.0316 0.0274 0.0297
04:01-05:00, Sat., 10 Feb. 0.0311 0.0266 0.0287
03:01-04:00, Sat., 10 Feb. 0.0300 0.0266 0.0283
02:01-03:00, Sat., 10 Feb. 0.0306 0.0263 0.0285
01:01-02:00, Sat., 10 Feb. 0.0308 0.0267 0.0285
00:01-01:00, Sat., 10 Feb. 0.0303 0.0261 0.0286
23:01-24:00, Fri., 09 Feb. 0.0312 0.0262 0.0284
22:01-23:00, Fri., 09 Feb. 0.0292 0.0246 0.0275
21:01-22:00, Fri., 09 Feb. 0.0298 0.0256 0.0277
20:01-21:00, Fri., 09 Feb. 0.0298 0.0256 0.0278
19:01-20:00, Fri., 09 Feb. 0.0304 0.0258 0.0277
18:01-19:00, Fri., 09 Feb. 0.0291 0.0258 0.0275
17:01-18:00, Fri., 09 Feb. 0.0304 0.0255 0.0276
16:01-17:00, Fri., 09 Feb. 0.0295 0.0252 0.0275
15:01-16:00, Fri., 09 Feb. 0.0298 0.0259 0.0282
14:01-15:00, Fri., 09 Feb. 0.0297 0.0259 0.0278
13:01-14:00, Fri., 09 Feb. 0.0300 0.0262 0.0280
12:01-13:00, Fri., 09 Feb. 0.0300 0.0259 0.0279
11:01-12:00, Fri., 09 Feb. 0.0297 0.0262 0.0280
10:01-11:00, Fri., 09 Feb. 0.0301 0.0263 0.0282
09:01-10:00, Fri., 09 Feb. 0.0312 0.0263 0.0284
08:01-09:00, Fri., 09 Feb. 0.0304 0.0270 0.0284
07:01-08:00, Fri., 09 Feb. 0.0305 0.0273 0.0284
06:01-07:00, Fri., 09 Feb. 0.0312 0.0262 0.0284
05:01-06:00, Fri., 09 Feb. 0.0306 0.0260 0.0283
04:01-05:00, Fri., 09 Feb. 0.0294 0.0258 0.0279
03:01-04:00, Fri., 09 Feb. 0.0299 0.0259 0.0280
02:01-03:00, Fri., 09 Feb. 0.0296 0.0256 0.0281
01:01-02:00, Fri., 09 Feb. 0.0298 0.0262 0.0276
00:01-01:00, Fri., 09 Feb. 0.0294 0.0247 0.0275
23:01-24:00, Thu., 08 Feb. 0.0297 0.0252 0.0275
22:01-23:00, Thu., 08 Feb. 0.0306 0.0256 0.0275
21:01-22:00, Thu., 08 Feb. 0.0294 0.0252 0.0274
20:01-21:00, Thu., 08 Feb. 0.0286 0.0258 0.0273
19:01-20:00, Thu., 08 Feb. 0.0299 0.0257 0.0274
18:01-19:00, Thu., 08 Feb. 0.0302 0.0250 0.0273
17:01-18:00, Thu., 08 Feb. 0.0297 0.0255 0.0275
16:01-17:00, Thu., 08 Feb. 0.0294 0.0259 0.0277
15:01-16:00, Thu., 08 Feb. 0.0298 0.0248 0.0278
14:01-15:00, Thu., 08 Feb. 0.0304 0.0262 0.0282
13:01-14:00, Thu., 08 Feb. 0.0297 0.0261 0.0278
12:01-13:00, Thu., 08 Feb. 0.0301 0.0259 0.0280
11:01-12:00, Thu., 08 Feb. 0.0301 0.0260 0.0280
10:01-11:00, Thu., 08 Feb. 0.0318 0.0265 0.0283
09:01-10:00, Thu., 08 Feb. 0.0315 0.0274 0.0295
08:01-09:00, Thu., 08 Feb. 0.0329 0.0283 0.0300
07:01-08:00, Thu., 08 Feb. 0.0330 0.0284 0.0305
06:01-07:00, Thu., 08 Feb. 0.0322 0.0287 0.0306
05:01-06:00, Thu., 08 Feb. 0.0328 0.0285 0.0303
04:01-05:00, Thu., 08 Feb. 0.0320 0.0281 0.0298
03:01-04:00, Thu., 08 Feb. 0.0317 0.0280 0.0300
02:01-03:00, Thu., 08 Feb. 0.0320 0.0276 0.0300
01:01-02:00, Thu., 08 Feb. 0.0317 0.0268 0.0295
00:01-01:00, Thu., 08 Feb. 0.0311 0.0273 0.0294
23:01-24:00, Wed., 07 Feb. 0.0324 0.0269 0.0291
22:01-23:00, Wed., 07 Feb. 0.0313 0.0273 0.0292
21:01-22:00, Wed., 07 Feb. 0.0308 0.0258 0.0290
20:01-21:00, Wed., 07 Feb. 0.0306 0.0266 0.0285
19:01-20:00, Wed., 07 Feb. 0.0296 0.0262 0.0277
18:01-19:00, Wed., 07 Feb. 0.0291 0.0252 0.0271
17:01-18:00, Wed., 07 Feb. 0.0292 0.0247 0.0272
16:01-17:00, Wed., 07 Feb. 0.0288 0.0249 0.0270
15:01-16:00, Wed., 07 Feb. 0.0294 0.0252 0.0271
14:01-15:00, Wed., 07 Feb. 0.0296 0.0245 0.0270
13:01-14:00, Wed., 07 Feb. 0.0290 0.0254 0.0271
12:01-13:00, Wed., 07 Feb. 0.0288 0.0251 0.0267
11:01-12:00, Wed., 07 Feb. 0.0285 0.0248 0.0268
10:01-11:00, Wed., 07 Feb. 0.0289 0.0252 0.0269
09:01-10:00, Wed., 07 Feb. 0.0287 0.0254 0.0270
08:01-09:00, Wed., 07 Feb. 0.0286 0.0249 0.0269
07:01-08:00, Wed., 07 Feb. 0.0304 0.0251 0.0274
06:01-07:00, Wed., 07 Feb. 0.0290 0.0250 0.0274
05:01-06:00, Wed., 07 Feb. 0.0294 0.0249 0.0271
04:01-05:00, Wed., 07 Feb. 0.0291 0.0252 0.0272
03:01-04:00, Wed., 07 Feb. 0.0290 0.0249 0.0267
02:01-03:00, Wed., 07 Feb. 0.0296 0.0244 0.0267
01:01-02:00, Wed., 07 Feb. 0.0291 0.0245 0.0264
00:01-01:00, Wed., 07 Feb. 0.0286 0.0249 0.0266
23:01-24:00, Tue., 06 Feb. 0.0288 0.0242 0.0264
22:01-23:00, Tue., 06 Feb. 0.0282 0.0248 0.0262
21:01-22:00, Tue., 06 Feb. 0.0294 0.0246 0.0264
20:01-21:00, Tue., 06 Feb. 0.0279 0.0243 0.0262
19:01-20:00, Tue., 06 Feb. 0.0286 0.0241 0.0259
18:01-19:00, Tue., 06 Feb. 0.0293 0.0238 0.0261
17:01-18:00, Tue., 06 Feb. 0.0273 0.0231 0.0258
16:01-17:00, Tue., 06 Feb. 0.0280 0.0237 0.0257
15:01-16:00, Tue., 06 Feb. 0.0278 0.0246 0.0262
14:01-15:00, Tue., 06 Feb. 0.0290 0.0247 0.0267
13:01-14:00, Tue., 06 Feb. 0.0292 0.0258 0.0275
12:01-13:00, Tue., 06 Feb. 0.0332 0.0271 0.0291
11:01-12:00, Tue., 06 Feb. 0.0304 0.0256 0.0280
10:01-11:00, Tue., 06 Feb. 0.0292 0.0248 0.0273
09:01-10:00, Tue., 06 Feb. 0.0290 0.0253 0.0273
08:01-09:00, Tue., 06 Feb. 0.0297 0.0262 0.0278
07:01-08:00, Tue., 06 Feb. 0.0293 0.0232 0.0262
06:01-07:00, Tue., 06 Feb. 0.0256 0.0216 0.0235
05:01-06:00, Tue., 06 Feb. 0.0247 0.0205 0.0233
04:01-05:00, Tue., 06 Feb. 0.0259 0.0219 0.0237
03:01-04:00, Tue., 06 Feb. 0.0259 0.0206 0.0236
02:01-03:00, Tue., 06 Feb. 0.0265 0.0215 0.0242
01:01-02:00, Tue., 06 Feb. 0.0253 0.0219 0.0237
00:01-01:00, Tue., 06 Feb. 0.0310 0.0236 0.0270
23:01-24:00, Mon., 05 Feb. 0.0381 0.0280 0.0339
22:01-23:00, Mon., 05 Feb. 0.0422 0.0365 0.0388
21:01-22:00, Mon., 05 Feb. 0.0433 0.0382 0.0410
20:01-21:00, Mon., 05 Feb. 0.0455 0.0400 0.0428
19:01-20:00, Mon., 05 Feb. 0.0454 0.0399 0.0425
18:01-19:00, Mon., 05 Feb. 0.0443 0.0398 0.0420
17:01-18:00, Mon., 05 Feb. 0.0425 0.0370 0.0398
16:01-17:00, Mon., 05 Feb. 0.0410 0.0370 0.0391
15:01-16:00, Mon., 05 Feb. 0.0419 0.0370 0.0396
14:01-15:00, Mon., 05 Feb. 0.0452 0.0395 0.0416
13:01-14:00, Mon., 05 Feb. 0.0455 0.0382 0.0431
12:01-13:00, Mon., 05 Feb. 0.0448 0.0346 0.0402
11:01-12:00, Mon., 05 Feb. 0.0366 0.0266 0.0303
10:01-11:00, Mon., 05 Feb. 0.0314 0.0266 0.0285
09:01-10:00, Mon., 05 Feb. 0.0301 0.0257 0.0282
08:01-09:00, Mon., 05 Feb. 0.0305 0.0262 0.0283
07:01-08:00, Mon., 05 Feb. 0.0308 0.0260 0.0280
06:01-07:00, Mon., 05 Feb. 0.0302 0.0256 0.0279
05:01-06:00, Mon., 05 Feb. 0.0300 0.0265 0.0281
04:01-05:00, Mon., 05 Feb. 0.0300 0.0253 0.0277
03:01-04:00, Mon., 05 Feb. 0.0294 0.0248 0.0277
02:01-03:00, Mon., 05 Feb. 0.0302 0.0260 0.0280
01:01-02:00, Mon., 05 Feb. 0.0294 0.0244 0.0278
00:01-01:00, Mon., 05 Feb. 0.0295 0.0249 0.0275