Measurement results by the hour (Chofu) 20 Jan., 2025 - 26 Jan., 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., 26 Jan. 0.0298 0.0251 0.0270
22:01-23:00, Sun., 26 Jan. 0.0294 0.0253 0.0274
21:01-22:00, Sun., 26 Jan. 0.0288 0.0253 0.0271
20:01-21:00, Sun., 26 Jan. 0.0293 0.0253 0.0273
19:01-20:00, Sun., 26 Jan. 0.0294 0.0249 0.0271
18:01-19:00, Sun., 26 Jan. 0.0293 0.0256 0.0273
17:01-18:00, Sun., 26 Jan. 0.0299 0.0256 0.0273
16:01-17:00, Sun., 26 Jan. 0.0287 0.0256 0.0272
15:01-16:00, Sun., 26 Jan. 0.0297 0.0258 0.0272
14:01-15:00, Sun., 26 Jan. 0.0297 0.0254 0.0274
13:01-14:00, Sun., 26 Jan. 0.0304 0.0259 0.0279
12:01-13:00, Sun., 26 Jan. 0.0307 0.0252 0.0277
11:01-12:00, Sun., 26 Jan. 0.0294 0.0249 0.0273
10:01-11:00, Sun., 26 Jan. 0.0310 0.0252 0.0273
09:01-10:00, Sun., 26 Jan. 0.0292 0.0255 0.0274
08:01-09:00, Sun., 26 Jan. 0.0297 0.0257 0.0275
07:01-08:00, Sun., 26 Jan. 0.0294 0.0255 0.0273
06:01-07:00, Sun., 26 Jan. 0.0304 0.0256 0.0274
05:01-06:00, Sun., 26 Jan. 0.0299 0.0256 0.0274
04:01-05:00, Sun., 26 Jan. 0.0300 0.0249 0.0276
03:01-04:00, Sun., 26 Jan. 0.0302 0.0256 0.0275
02:01-03:00, Sun., 26 Jan. 0.0303 0.0259 0.0276
01:01-02:00, Sun., 26 Jan. 0.0298 0.0249 0.0275
00:01-01:00, Sun., 26 Jan. 0.0297 0.0256 0.0277
23:01-24:00, Sat., 25 Jan. 0.0295 0.0238 0.0272
22:01-23:00, Sat., 25 Jan. 0.0294 0.0258 0.0273
21:01-22:00, Sat., 25 Jan. 0.0290 0.0252 0.0273
20:01-21:00, Sat., 25 Jan. 0.0288 0.0244 0.0271
19:01-20:00, Sat., 25 Jan. 0.0294 0.0244 0.0272
18:01-19:00, Sat., 25 Jan. 0.0294 0.0252 0.0273
17:01-18:00, Sat., 25 Jan. 0.0296 0.0248 0.0272
16:01-17:00, Sat., 25 Jan. 0.0291 0.0253 0.0272
15:01-16:00, Sat., 25 Jan. 0.0300 0.0258 0.0279
14:01-15:00, Sat., 25 Jan. 0.0302 0.0259 0.0278
13:01-14:00, Sat., 25 Jan. 0.0308 0.0257 0.0280
12:01-13:00, Sat., 25 Jan. 0.0294 0.0261 0.0279
11:01-12:00, Sat., 25 Jan. 0.0301 0.0259 0.0277
10:01-11:00, Sat., 25 Jan. 0.0299 0.0259 0.0277
09:01-10:00, Sat., 25 Jan. 0.0301 0.0258 0.0277
08:01-09:00, Sat., 25 Jan. 0.0307 0.0256 0.0280
07:01-08:00, Sat., 25 Jan. 0.0303 0.0250 0.0283
06:01-07:00, Sat., 25 Jan. 0.0317 0.0270 0.0291
05:01-06:00, Sat., 25 Jan. 0.0323 0.0265 0.0290
04:01-05:00, Sat., 25 Jan. 0.0299 0.0254 0.0278
03:01-04:00, Sat., 25 Jan. 0.0291 0.0256 0.0276
02:01-03:00, Sat., 25 Jan. 0.0311 0.0262 0.0279
01:01-02:00, Sat., 25 Jan. 0.0297 0.0258 0.0277
00:01-01:00, Sat., 25 Jan. 0.0299 0.0249 0.0278
23:01-24:00, Fri., 24 Jan. 0.0308 0.0266 0.0286
22:01-23:00, Fri., 24 Jan. 0.0323 0.0268 0.0295
21:01-22:00, Fri., 24 Jan. 0.0381 0.0286 0.0333
20:01-21:00, Fri., 24 Jan. 0.0416 0.0338 0.0374
19:01-20:00, Fri., 24 Jan. 0.0356 0.0264 0.0295
18:01-19:00, Fri., 24 Jan. 0.0295 0.0256 0.0276
17:01-18:00, Fri., 24 Jan. 0.0295 0.0253 0.0277
16:01-17:00, Fri., 24 Jan. 0.0296 0.0256 0.0278
15:01-16:00, Fri., 24 Jan. 0.0301 0.0256 0.0280
14:01-15:00, Fri., 24 Jan. 0.0306 0.0261 0.0280
13:01-14:00, Fri., 24 Jan. 0.0304 0.0268 0.0283
12:01-13:00, Fri., 24 Jan. 0.0311 0.0256 0.0281
11:01-12:00, Fri., 24 Jan. 0.0304 0.0262 0.0282
10:01-11:00, Fri., 24 Jan. 0.0299 0.0265 0.0282
09:01-10:00, Fri., 24 Jan. 0.0306 0.0264 0.0285
08:01-09:00, Fri., 24 Jan. 0.0310 0.0260 0.0292
07:01-08:00, Fri., 24 Jan. 0.0318 0.0271 0.0295
06:01-07:00, Fri., 24 Jan. 0.0330 0.0279 0.0300
05:01-06:00, Fri., 24 Jan. 0.0319 0.0272 0.0300
04:01-05:00, Fri., 24 Jan. 0.0317 0.0276 0.0298
03:01-04:00, Fri., 24 Jan. 0.0317 0.0281 0.0298
02:01-03:00, Fri., 24 Jan. 0.0324 0.0277 0.0296
01:01-02:00, Fri., 24 Jan. 0.0318 0.0270 0.0297
00:01-01:00, Fri., 24 Jan. 0.0323 0.0269 0.0295
23:01-24:00, Thu., 23 Jan. 0.0311 0.0271 0.0288
22:01-23:00, Thu., 23 Jan. 0.0314 0.0272 0.0289
21:01-22:00, Thu., 23 Jan. 0.0308 0.0258 0.0285
20:01-21:00, Thu., 23 Jan. 0.0302 0.0249 0.0280
19:01-20:00, Thu., 23 Jan. 0.0296 0.0256 0.0278
18:01-19:00, Thu., 23 Jan. 0.0293 0.0260 0.0274
17:01-18:00, Thu., 23 Jan. 0.0300 0.0259 0.0277
16:01-17:00, Thu., 23 Jan. 0.0303 0.0254 0.0276
15:01-16:00, Thu., 23 Jan. 0.0303 0.0259 0.0281
14:01-15:00, Thu., 23 Jan. 0.0310 0.0262 0.0281
13:01-14:00, Thu., 23 Jan. 0.0297 0.0262 0.0279
12:01-13:00, Thu., 23 Jan. 0.0308 0.0259 0.0284
11:01-12:00, Thu., 23 Jan. 0.0313 0.0262 0.0283
10:01-11:00, Thu., 23 Jan. 0.0311 0.0268 0.0289
09:01-10:00, Thu., 23 Jan. 0.0308 0.0265 0.0287
08:01-09:00, Thu., 23 Jan. 0.0317 0.0276 0.0297
07:01-08:00, Thu., 23 Jan. 0.0315 0.0277 0.0295
06:01-07:00, Thu., 23 Jan. 0.0311 0.0273 0.0295
05:01-06:00, Thu., 23 Jan. 0.0308 0.0270 0.0289
04:01-05:00, Thu., 23 Jan. 0.0311 0.0263 0.0291
03:01-04:00, Thu., 23 Jan. 0.0311 0.0262 0.0292
02:01-03:00, Thu., 23 Jan. 0.0310 0.0270 0.0294
01:01-02:00, Thu., 23 Jan. 0.0318 0.0276 0.0294
00:01-01:00, Thu., 23 Jan. 0.0308 0.0266 0.0286
23:01-24:00, Wed., 22 Jan. 0.0307 0.0267 0.0285
22:01-23:00, Wed., 22 Jan. 0.0306 0.0263 0.0285
21:01-22:00, Wed., 22 Jan. 0.0298 0.0253 0.0278
20:01-21:00, Wed., 22 Jan. 0.0295 0.0249 0.0274
19:01-20:00, Wed., 22 Jan. 0.0301 0.0252 0.0274
18:01-19:00, Wed., 22 Jan. 0.0290 0.0254 0.0272
17:01-18:00, Wed., 22 Jan. 0.0297 0.0241 0.0270
16:01-17:00, Wed., 22 Jan. 0.0300 0.0254 0.0273
15:01-16:00, Wed., 22 Jan. 0.0295 0.0252 0.0275
14:01-15:00, Wed., 22 Jan. 0.0294 0.0257 0.0275
13:01-14:00, Wed., 22 Jan. 0.0298 0.0254 0.0276
12:01-13:00, Wed., 22 Jan. 0.0300 0.0251 0.0274
11:01-12:00, Wed., 22 Jan. 0.0302 0.0255 0.0274
10:01-11:00, Wed., 22 Jan. 0.0293 0.0255 0.0275
09:01-10:00, Wed., 22 Jan. 0.0300 0.0254 0.0276
08:01-09:00, Wed., 22 Jan. 0.0297 0.0262 0.0283
07:01-08:00, Wed., 22 Jan. 0.0308 0.0265 0.0282
06:01-07:00, Wed., 22 Jan. 0.0298 0.0258 0.0279
05:01-06:00, Wed., 22 Jan. 0.0298 0.0257 0.0277
04:01-05:00, Wed., 22 Jan. 0.0299 0.0258 0.0277
03:01-04:00, Wed., 22 Jan. 0.0293 0.0258 0.0277
02:01-03:00, Wed., 22 Jan. 0.0298 0.0253 0.0273
01:01-02:00, Wed., 22 Jan. 0.0297 0.0256 0.0277
00:01-01:00, Wed., 22 Jan. 0.0297 0.0261 0.0275
23:01-24:00, Tue., 21 Jan. 0.0307 0.0259 0.0276
22:01-23:00, Tue., 21 Jan. 0.0300 0.0259 0.0277
21:01-22:00, Tue., 21 Jan. 0.0299 0.0252 0.0274
20:01-21:00, Tue., 21 Jan. 0.0293 0.0255 0.0275
19:01-20:00, Tue., 21 Jan. 0.0297 0.0253 0.0275
18:01-19:00, Tue., 21 Jan. 0.0295 0.0258 0.0275
17:01-18:00, Tue., 21 Jan. 0.0294 0.0249 0.0271
16:01-17:00, Tue., 21 Jan. 0.0295 0.0258 0.0275
15:01-16:00, Tue., 21 Jan. 0.0294 0.0255 0.0277
14:01-15:00, Tue., 21 Jan. 0.0296 0.0267 0.0281
13:01-14:00, Tue., 21 Jan. 0.0297 0.0255 0.0278
12:01-13:00, Tue., 21 Jan. 0.0303 0.0259 0.0278
11:01-12:00, Tue., 21 Jan. 0.0303 0.0259 0.0282
10:01-11:00, Tue., 21 Jan. 0.0299 0.0249 0.0282
09:01-10:00, Tue., 21 Jan. 0.0308 0.0257 0.0286
08:01-09:00, Tue., 21 Jan. 0.0315 0.0262 0.0289
07:01-08:00, Tue., 21 Jan. 0.0302 0.0264 0.0283
06:01-07:00, Tue., 21 Jan. 0.0300 0.0260 0.0278
05:01-06:00, Tue., 21 Jan. 0.0298 0.0256 0.0276
04:01-05:00, Tue., 21 Jan. 0.0298 0.0252 0.0274
03:01-04:00, Tue., 21 Jan. 0.0303 0.0256 0.0276
02:01-03:00, Tue., 21 Jan. 0.0294 0.0252 0.0275
01:01-02:00, Tue., 21 Jan. 0.0293 0.0257 0.0275
00:01-01:00, Tue., 21 Jan. 0.0297 0.0251 0.0274
23:01-24:00, Mon., 20 Jan. 0.0295 0.0256 0.0275
22:01-23:00, Mon., 20 Jan. 0.0304 0.0256 0.0275
21:01-22:00, Mon., 20 Jan. 0.0290 0.0249 0.0275
20:01-21:00, Mon., 20 Jan. 0.0307 0.0258 0.0286
19:01-20:00, Mon., 20 Jan. 0.0320 0.0263 0.0300
18:01-19:00, Mon., 20 Jan. 0.0310 0.0257 0.0279
17:01-18:00, Mon., 20 Jan. 0.0294 0.0259 0.0274
16:01-17:00, Mon., 20 Jan. 0.0290 0.0256 0.0273
15:01-16:00, Mon., 20 Jan. 0.0304 0.0258 0.0277
14:01-15:00, Mon., 20 Jan. 0.0301 0.0259 0.0279
13:01-14:00, Mon., 20 Jan. 0.0316 0.0249 0.0281
12:01-13:00, Mon., 20 Jan. 0.0304 0.0262 0.0282
11:01-12:00, Mon., 20 Jan. 0.0318 0.0271 0.0288
10:01-11:00, Mon., 20 Jan. 0.0319 0.0269 0.0290
09:01-10:00, Mon., 20 Jan. 0.0316 0.0261 0.0287
08:01-09:00, Mon., 20 Jan. 0.0314 0.0269 0.0289
07:01-08:00, Mon., 20 Jan. 0.0346 0.0284 0.0313
06:01-07:00, Mon., 20 Jan. 0.0339 0.0280 0.0316
05:01-06:00, Mon., 20 Jan. 0.0324 0.0289 0.0306
04:01-05:00, Mon., 20 Jan. 0.0316 0.0264 0.0289
03:01-04:00, Mon., 20 Jan. 0.0308 0.0265 0.0285
02:01-03:00, Mon., 20 Jan. 0.0304 0.0255 0.0279
01:01-02:00, Mon., 20 Jan. 0.0304 0.0261 0.0283
00:01-01:00, Mon., 20 Jan. 0.0304 0.0256 0.0280