Measurement results by the hour (Chofu) 9 Jun., 2025 - 15 Jun., 2025

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., 15 Jun. 0.0298 0.0263 0.0278
22:01-23:00, Sun., 15 Jun. 0.0303 0.0246 0.0278
21:01-22:00, Sun., 15 Jun. 0.0304 0.0259 0.0277
20:01-21:00, Sun., 15 Jun. 0.0294 0.0244 0.0271
19:01-20:00, Sun., 15 Jun. 0.0286 0.0247 0.0268
18:01-19:00, Sun., 15 Jun. 0.0292 0.0252 0.0269
17:01-18:00, Sun., 15 Jun. 0.0287 0.0256 0.0272
16:01-17:00, Sun., 15 Jun. 0.0294 0.0261 0.0276
15:01-16:00, Sun., 15 Jun. 0.0297 0.0261 0.0280
14:01-15:00, Sun., 15 Jun. 0.0304 0.0259 0.0281
13:01-14:00, Sun., 15 Jun. 0.0304 0.0255 0.0279
12:01-13:00, Sun., 15 Jun. 0.0292 0.0249 0.0275
11:01-12:00, Sun., 15 Jun. 0.0303 0.0251 0.0277
10:01-11:00, Sun., 15 Jun. 0.0308 0.0263 0.0284
09:01-10:00, Sun., 15 Jun. 0.0298 0.0257 0.0278
08:01-09:00, Sun., 15 Jun. 0.0294 0.0247 0.0272
07:01-08:00, Sun., 15 Jun. 0.0290 0.0246 0.0272
06:01-07:00, Sun., 15 Jun. 0.0314 0.0261 0.0286
05:01-06:00, Sun., 15 Jun. 0.0336 0.0280 0.0312
04:01-05:00, Sun., 15 Jun. 0.0329 0.0252 0.0282
03:01-04:00, Sun., 15 Jun. 0.0296 0.0245 0.0268
02:01-03:00, Sun., 15 Jun. 0.0283 0.0252 0.0267
01:01-02:00, Sun., 15 Jun. 0.0287 0.0249 0.0271
00:01-01:00, Sun., 15 Jun. 0.0307 0.0252 0.0282
23:01-24:00, Sat., 14 Jun. 0.0336 0.0281 0.0307
22:01-23:00, Sat., 14 Jun. 0.0358 0.0303 0.0330
21:01-22:00, Sat., 14 Jun. 0.0415 0.0326 0.0370
20:01-21:00, Sat., 14 Jun. 0.0426 0.0354 0.0388
19:01-20:00, Sat., 14 Jun. 0.0396 0.0336 0.0372
18:01-19:00, Sat., 14 Jun. 0.0359 0.0293 0.0326
17:01-18:00, Sat., 14 Jun. 0.0301 0.0261 0.0281
16:01-17:00, Sat., 14 Jun. 0.0305 0.0268 0.0284
15:01-16:00, Sat., 14 Jun. 0.0314 0.0254 0.0288
14:01-15:00, Sat., 14 Jun. 0.0303 0.0259 0.0283
13:01-14:00, Sat., 14 Jun. 0.0310 0.0259 0.0278
12:01-13:00, Sat., 14 Jun. 0.0297 0.0252 0.0277
11:01-12:00, Sat., 14 Jun. 0.0296 0.0252 0.0276
10:01-11:00, Sat., 14 Jun. 0.0291 0.0262 0.0276
09:01-10:00, Sat., 14 Jun. 0.0297 0.0256 0.0278
08:01-09:00, Sat., 14 Jun. 0.0297 0.0250 0.0275
07:01-08:00, Sat., 14 Jun. 0.0292 0.0245 0.0276
06:01-07:00, Sat., 14 Jun. 0.0298 0.0251 0.0277
05:01-06:00, Sat., 14 Jun. 0.0290 0.0252 0.0275
04:01-05:00, Sat., 14 Jun. 0.0294 0.0253 0.0273
03:01-04:00, Sat., 14 Jun. 0.0302 0.0254 0.0275
02:01-03:00, Sat., 14 Jun. 0.0294 0.0252 0.0276
01:01-02:00, Sat., 14 Jun. 0.0295 0.0251 0.0275
00:01-01:00, Sat., 14 Jun. 0.0302 0.0257 0.0278
23:01-24:00, Fri., 13 Jun. 0.0303 0.0256 0.0276
22:01-23:00, Fri., 13 Jun. 0.0301 0.0253 0.0277
21:01-22:00, Fri., 13 Jun. 0.0297 0.0257 0.0277
20:01-21:00, Fri., 13 Jun. 0.0302 0.0254 0.0276
19:01-20:00, Fri., 13 Jun. 0.0294 0.0250 0.0277
18:01-19:00, Fri., 13 Jun. 0.0301 0.0255 0.0273
17:01-18:00, Fri., 13 Jun. 0.0303 0.0252 0.0277
16:01-17:00, Fri., 13 Jun. 0.0297 0.0251 0.0278
15:01-16:00, Fri., 13 Jun. 0.0300 0.0260 0.0278
14:01-15:00, Fri., 13 Jun. 0.0294 0.0249 0.0274
13:01-14:00, Fri., 13 Jun. 0.0297 0.0252 0.0276
12:01-13:00, Fri., 13 Jun. 0.0297 0.0249 0.0277
11:01-12:00, Fri., 13 Jun. 0.0304 0.0261 0.0276
10:01-11:00, Fri., 13 Jun. 0.0297 0.0250 0.0275
09:01-10:00, Fri., 13 Jun. 0.0311 0.0259 0.0280
08:01-09:00, Fri., 13 Jun. 0.0305 0.0266 0.0284
07:01-08:00, Fri., 13 Jun. 0.0307 0.0263 0.0287
06:01-07:00, Fri., 13 Jun. 0.0310 0.0263 0.0283
05:01-06:00, Fri., 13 Jun. 0.0304 0.0264 0.0282
04:01-05:00, Fri., 13 Jun. 0.0306 0.0259 0.0280
03:01-04:00, Fri., 13 Jun. 0.0300 0.0245 0.0276
02:01-03:00, Fri., 13 Jun. 0.0297 0.0256 0.0274
01:01-02:00, Fri., 13 Jun. 0.0288 0.0252 0.0272
00:01-01:00, Fri., 13 Jun. 0.0293 0.0257 0.0273
23:01-24:00, Thu., 12 Jun. 0.0293 0.0250 0.0275
22:01-23:00, Thu., 12 Jun. 0.0293 0.0259 0.0276
21:01-22:00, Thu., 12 Jun. 0.0299 0.0252 0.0273
20:01-21:00, Thu., 12 Jun. 0.0290 0.0250 0.0274
19:01-20:00, Thu., 12 Jun. 0.0290 0.0254 0.0275
18:01-19:00, Thu., 12 Jun. 0.0290 0.0253 0.0274
17:01-18:00, Thu., 12 Jun. 0.0298 0.0257 0.0277
16:01-17:00, Thu., 12 Jun. 0.0305 0.0251 0.0278
15:01-16:00, Thu., 12 Jun. 0.0292 0.0256 0.0277
14:01-15:00, Thu., 12 Jun. 0.0298 0.0260 0.0277
13:01-14:00, Thu., 12 Jun. 0.0302 0.0259 0.0275
12:01-13:00, Thu., 12 Jun. 0.0303 0.0254 0.0275
11:01-12:00, Thu., 12 Jun. 0.0298 0.0261 0.0278
10:01-11:00, Thu., 12 Jun. 0.0294 0.0252 0.0274
09:01-10:00, Thu., 12 Jun. 0.0291 0.0257 0.0275
08:01-09:00, Thu., 12 Jun. 0.0296 0.0253 0.0278
07:01-08:00, Thu., 12 Jun. 0.0303 0.0250 0.0278
06:01-07:00, Thu., 12 Jun. 0.0297 0.0251 0.0278
05:01-06:00, Thu., 12 Jun. 0.0308 0.0258 0.0278
04:01-05:00, Thu., 12 Jun. 0.0296 0.0255 0.0276
03:01-04:00, Thu., 12 Jun. 0.0296 0.0253 0.0276
02:01-03:00, Thu., 12 Jun. 0.0301 0.0252 0.0274
01:01-02:00, Thu., 12 Jun. 0.0290 0.0257 0.0274
00:01-01:00, Thu., 12 Jun. 0.0299 0.0256 0.0275
23:01-24:00, Wed., 11 Jun. 0.0289 0.0254 0.0273
22:01-23:00, Wed., 11 Jun. 0.0287 0.0252 0.0272
21:01-22:00, Wed., 11 Jun. 0.0289 0.0249 0.0270
20:01-21:00, Wed., 11 Jun. 0.0291 0.0253 0.0272
19:01-20:00, Wed., 11 Jun. 0.0301 0.0248 0.0276
18:01-19:00, Wed., 11 Jun. 0.0325 0.0270 0.0297
17:01-18:00, Wed., 11 Jun. 0.0405 0.0301 0.0348
16:01-17:00, Wed., 11 Jun. 0.0481 0.0363 0.0412
15:01-16:00, Wed., 11 Jun. 0.0517 0.0409 0.0478
14:01-15:00, Wed., 11 Jun. 0.0393 0.0276 0.0325
13:01-14:00, Wed., 11 Jun. 0.0325 0.0259 0.0290
12:01-13:00, Wed., 11 Jun. 0.0311 0.0263 0.0291
11:01-12:00, Wed., 11 Jun. 0.0311 0.0278 0.0296
10:01-11:00, Wed., 11 Jun. 0.0306 0.0259 0.0284
09:01-10:00, Wed., 11 Jun. 0.0317 0.0274 0.0293
08:01-09:00, Wed., 11 Jun. 0.0348 0.0290 0.0319
07:01-08:00, Wed., 11 Jun. 0.0347 0.0274 0.0308
06:01-07:00, Wed., 11 Jun. 0.0326 0.0259 0.0286
05:01-06:00, Wed., 11 Jun. 0.0293 0.0246 0.0276
04:01-05:00, Wed., 11 Jun. 0.0296 0.0259 0.0276
03:01-04:00, Wed., 11 Jun. 0.0298 0.0259 0.0281
02:01-03:00, Wed., 11 Jun. 0.0308 0.0259 0.0283
01:01-02:00, Wed., 11 Jun. 0.0297 0.0252 0.0274
00:01-01:00, Wed., 11 Jun. 0.0301 0.0252 0.0273
23:01-24:00, Tue., 10 Jun. 0.0297 0.0250 0.0272
22:01-23:00, Tue., 10 Jun. 0.0291 0.0256 0.0273
21:01-22:00, Tue., 10 Jun. 0.0291 0.0251 0.0273
20:01-21:00, Tue., 10 Jun. 0.0294 0.0243 0.0271
19:01-20:00, Tue., 10 Jun. 0.0291 0.0249 0.0270
18:01-19:00, Tue., 10 Jun. 0.0297 0.0257 0.0276
17:01-18:00, Tue., 10 Jun. 0.0291 0.0252 0.0275
16:01-17:00, Tue., 10 Jun. 0.0305 0.0263 0.0283
15:01-16:00, Tue., 10 Jun. 0.0335 0.0283 0.0306
14:01-15:00, Tue., 10 Jun. 0.0371 0.0305 0.0337
13:01-14:00, Tue., 10 Jun. 0.0366 0.0309 0.0338
12:01-13:00, Tue., 10 Jun. 0.0322 0.0280 0.0308
11:01-12:00, Tue., 10 Jun. 0.0329 0.0287 0.0310
10:01-11:00, Tue., 10 Jun. 0.0349 0.0289 0.0313
09:01-10:00, Tue., 10 Jun. 0.0403 0.0325 0.0363
08:01-09:00, Tue., 10 Jun. 0.0404 0.0336 0.0366
07:01-08:00, Tue., 10 Jun. 0.0400 0.0323 0.0371
06:01-07:00, Tue., 10 Jun. 0.0412 0.0300 0.0351
05:01-06:00, Tue., 10 Jun. 0.0322 0.0279 0.0298
04:01-05:00, Tue., 10 Jun. 0.0342 0.0286 0.0310
03:01-04:00, Tue., 10 Jun. 0.0327 0.0278 0.0304
02:01-03:00, Tue., 10 Jun. 0.0306 0.0261 0.0282
01:01-02:00, Tue., 10 Jun. 0.0303 0.0258 0.0278
00:01-01:00, Tue., 10 Jun. 0.0304 0.0258 0.0278
23:01-24:00, Mon., 09 Jun. 0.0308 0.0263 0.0285
22:01-23:00, Mon., 09 Jun. 0.0321 0.0270 0.0294
21:01-22:00, Mon., 09 Jun. 0.0343 0.0287 0.0317
20:01-21:00, Mon., 09 Jun. 0.0336 0.0272 0.0302
19:01-20:00, Mon., 09 Jun. 0.0322 0.0273 0.0297
18:01-19:00, Mon., 09 Jun. 0.0335 0.0289 0.0313
17:01-18:00, Mon., 09 Jun. 0.0352 0.0308 0.0327
16:01-17:00, Mon., 09 Jun. 0.0332 0.0278 0.0297
15:01-16:00, Mon., 09 Jun. 0.0307 0.0258 0.0278
14:01-15:00, Mon., 09 Jun. 0.0297 0.0259 0.0277
13:01-14:00, Mon., 09 Jun. 0.0304 0.0259 0.0277
12:01-13:00, Mon., 09 Jun. 0.0294 0.0254 0.0276
11:01-12:00, Mon., 09 Jun. 0.0298 0.0256 0.0276
10:01-11:00, Mon., 09 Jun. 0.0310 0.0265 0.0285
09:01-10:00, Mon., 09 Jun. 0.0317 0.0272 0.0291
08:01-09:00, Mon., 09 Jun. 0.0315 0.0270 0.0295
07:01-08:00, Mon., 09 Jun. 0.0322 0.0277 0.0300
06:01-07:00, Mon., 09 Jun. 0.0315 0.0270 0.0296
05:01-06:00, Mon., 09 Jun. 0.0322 0.0276 0.0297
04:01-05:00, Mon., 09 Jun. 0.0320 0.0274 0.0297
03:01-04:00, Mon., 09 Jun. 0.0315 0.0270 0.0294
02:01-03:00, Mon., 09 Jun. 0.0315 0.0278 0.0296
01:01-02:00, Mon., 09 Jun. 0.0305 0.0259 0.0285
00:01-01:00, Mon., 09 Jun. 0.0306 0.0265 0.0285