Measurement results by the hour (Chofu) 16 Jun., 2025 - 22 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., 22 Jun. 0.0304 0.0258 0.0281
22:01-23:00, Sun., 22 Jun. 0.0303 0.0268 0.0283
21:01-22:00, Sun., 22 Jun. 0.0299 0.0262 0.0280
20:01-21:00, Sun., 22 Jun. 0.0299 0.0263 0.0281
19:01-20:00, Sun., 22 Jun. 0.0304 0.0262 0.0281
18:01-19:00, Sun., 22 Jun. 0.0303 0.0268 0.0283
17:01-18:00, Sun., 22 Jun. 0.0310 0.0263 0.0283
16:01-17:00, Sun., 22 Jun. 0.0305 0.0264 0.0282
15:01-16:00, Sun., 22 Jun. 0.0311 0.0268 0.0285
14:01-15:00, Sun., 22 Jun. 0.0304 0.0266 0.0286
13:01-14:00, Sun., 22 Jun. 0.0305 0.0271 0.0284
12:01-13:00, Sun., 22 Jun. 0.0310 0.0259 0.0283
11:01-12:00, Sun., 22 Jun. 0.0312 0.0263 0.0284
10:01-11:00, Sun., 22 Jun. 0.0300 0.0262 0.0280
09:01-10:00, Sun., 22 Jun. 0.0303 0.0262 0.0281
08:01-09:00, Sun., 22 Jun. 0.0294 0.0259 0.0279
07:01-08:00, Sun., 22 Jun. 0.0311 0.0260 0.0281
06:01-07:00, Sun., 22 Jun. 0.0301 0.0260 0.0281
05:01-06:00, Sun., 22 Jun. 0.0296 0.0262 0.0279
04:01-05:00, Sun., 22 Jun. 0.0300 0.0259 0.0277
03:01-04:00, Sun., 22 Jun. 0.0302 0.0264 0.0280
02:01-03:00, Sun., 22 Jun. 0.0306 0.0256 0.0277
01:01-02:00, Sun., 22 Jun. 0.0306 0.0257 0.0279
00:01-01:00, Sun., 22 Jun. 0.0300 0.0258 0.0281
23:01-24:00, Sat., 21 Jun. 0.0296 0.0253 0.0278
22:01-23:00, Sat., 21 Jun. 0.0305 0.0259 0.0280
21:01-22:00, Sat., 21 Jun. 0.0297 0.0263 0.0280
20:01-21:00, Sat., 21 Jun. 0.0299 0.0260 0.0280
19:01-20:00, Sat., 21 Jun. 0.0299 0.0252 0.0278
18:01-19:00, Sat., 21 Jun. 0.0297 0.0259 0.0278
17:01-18:00, Sat., 21 Jun. 0.0298 0.0256 0.0277
16:01-17:00, Sat., 21 Jun. 0.0304 0.0260 0.0279
15:01-16:00, Sat., 21 Jun. 0.0299 0.0250 0.0277
14:01-15:00, Sat., 21 Jun. 0.0301 0.0261 0.0280
13:01-14:00, Sat., 21 Jun. 0.0301 0.0261 0.0281
12:01-13:00, Sat., 21 Jun. 0.0297 0.0257 0.0278
11:01-12:00, Sat., 21 Jun. 0.0302 0.0256 0.0279
10:01-11:00, Sat., 21 Jun. 0.0305 0.0255 0.0281
09:01-10:00, Sat., 21 Jun. 0.0297 0.0256 0.0278
08:01-09:00, Sat., 21 Jun. 0.0298 0.0254 0.0278
07:01-08:00, Sat., 21 Jun. 0.0298 0.0263 0.0280
06:01-07:00, Sat., 21 Jun. 0.0299 0.0249 0.0275
05:01-06:00, Sat., 21 Jun. 0.0297 0.0260 0.0277
04:01-05:00, Sat., 21 Jun. 0.0296 0.0246 0.0275
03:01-04:00, Sat., 21 Jun. 0.0301 0.0252 0.0276
02:01-03:00, Sat., 21 Jun. 0.0298 0.0253 0.0277
01:01-02:00, Sat., 21 Jun. 0.0297 0.0253 0.0278
00:01-01:00, Sat., 21 Jun. 0.0302 0.0261 0.0278
23:01-24:00, Fri., 20 Jun. 0.0301 0.0262 0.0278
22:01-23:00, Fri., 20 Jun. 0.0302 0.0256 0.0276
21:01-22:00, Fri., 20 Jun. 0.0294 0.0252 0.0276
20:01-21:00, Fri., 20 Jun. 0.0303 0.0251 0.0280
19:01-20:00, Fri., 20 Jun. 0.0294 0.0259 0.0278
18:01-19:00, Fri., 20 Jun. 0.0298 0.0252 0.0276
17:01-18:00, Fri., 20 Jun. 0.0295 0.0256 0.0276
16:01-17:00, Fri., 20 Jun. 0.0294 0.0250 0.0279
15:01-16:00, Fri., 20 Jun. 0.0297 0.0259 0.0281
14:01-15:00, Fri., 20 Jun. 0.0293 0.0263 0.0279
13:01-14:00, Fri., 20 Jun. 0.0297 0.0261 0.0278
12:01-13:00, Fri., 20 Jun. 0.0298 0.0265 0.0280
11:01-12:00, Fri., 20 Jun. 0.0307 0.0255 0.0280
10:01-11:00, Fri., 20 Jun. 0.0307 0.0256 0.0276
09:01-10:00, Fri., 20 Jun. 0.0309 0.0254 0.0277
08:01-09:00, Fri., 20 Jun. 0.0298 0.0259 0.0277
07:01-08:00, Fri., 20 Jun. 0.0298 0.0256 0.0277
06:01-07:00, Fri., 20 Jun. 0.0300 0.0259 0.0280
05:01-06:00, Fri., 20 Jun. 0.0299 0.0259 0.0277
04:01-05:00, Fri., 20 Jun. 0.0300 0.0254 0.0277
03:01-04:00, Fri., 20 Jun. 0.0301 0.0259 0.0278
02:01-03:00, Fri., 20 Jun. 0.0301 0.0257 0.0280
01:01-02:00, Fri., 20 Jun. 0.0303 0.0259 0.0278
00:01-01:00, Fri., 20 Jun. 0.0297 0.0260 0.0277
23:01-24:00, Thu., 19 Jun. 0.0297 0.0257 0.0277
22:01-23:00, Thu., 19 Jun. 0.0301 0.0257 0.0276
21:01-22:00, Thu., 19 Jun. 0.0299 0.0262 0.0277
20:01-21:00, Thu., 19 Jun. 0.0290 0.0251 0.0276
19:01-20:00, Thu., 19 Jun. 0.0294 0.0254 0.0277
18:01-19:00, Thu., 19 Jun. 0.0301 0.0257 0.0280
17:01-18:00, Thu., 19 Jun. 0.0301 0.0256 0.0277
16:01-17:00, Thu., 19 Jun. 0.0305 0.0265 0.0281
15:01-16:00, Thu., 19 Jun. 0.0311 0.0259 0.0281
14:01-15:00, Thu., 19 Jun. 0.0299 0.0259 0.0282
13:01-14:00, Thu., 19 Jun. 0.0300 0.0259 0.0281
12:01-13:00, Thu., 19 Jun. 0.0301 0.0267 0.0281
11:01-12:00, Thu., 19 Jun. 0.0300 0.0263 0.0282
10:01-11:00, Thu., 19 Jun. 0.0304 0.0263 0.0281
09:01-10:00, Thu., 19 Jun. 0.0298 0.0263 0.0279
08:01-09:00, Thu., 19 Jun. 0.0294 0.0251 0.0279
07:01-08:00, Thu., 19 Jun. 0.0298 0.0256 0.0281
06:01-07:00, Thu., 19 Jun. 0.0306 0.0263 0.0284
05:01-06:00, Thu., 19 Jun. 0.0299 0.0259 0.0283
04:01-05:00, Thu., 19 Jun. 0.0311 0.0256 0.0286
03:01-04:00, Thu., 19 Jun. 0.0310 0.0264 0.0285
02:01-03:00, Thu., 19 Jun. 0.0304 0.0261 0.0283
01:01-02:00, Thu., 19 Jun. 0.0305 0.0261 0.0281
00:01-01:00, Thu., 19 Jun. 0.0307 0.0252 0.0279
23:01-24:00, Wed., 18 Jun. 0.0302 0.0260 0.0277
22:01-23:00, Wed., 18 Jun. 0.0295 0.0260 0.0278
21:01-22:00, Wed., 18 Jun. 0.0294 0.0256 0.0278
20:01-21:00, Wed., 18 Jun. 0.0304 0.0262 0.0278
19:01-20:00, Wed., 18 Jun. 0.0298 0.0263 0.0280
18:01-19:00, Wed., 18 Jun. 0.0300 0.0250 0.0276
17:01-18:00, Wed., 18 Jun. 0.0299 0.0257 0.0280
16:01-17:00, Wed., 18 Jun. 0.0307 0.0254 0.0279
15:01-16:00, Wed., 18 Jun. 0.0308 0.0260 0.0278
14:01-15:00, Wed., 18 Jun. 0.0295 0.0252 0.0278
13:01-14:00, Wed., 18 Jun. 0.0302 0.0260 0.0280
12:01-13:00, Wed., 18 Jun. 0.0302 0.0258 0.0281
11:01-12:00, Wed., 18 Jun. 0.0301 0.0260 0.0280
10:01-11:00, Wed., 18 Jun. 0.0312 0.0253 0.0279
09:01-10:00, Wed., 18 Jun. 0.0307 0.0266 0.0281
08:01-09:00, Wed., 18 Jun. 0.0302 0.0254 0.0280
07:01-08:00, Wed., 18 Jun. 0.0297 0.0262 0.0281
06:01-07:00, Wed., 18 Jun. 0.0304 0.0261 0.0282
05:01-06:00, Wed., 18 Jun. 0.0300 0.0260 0.0281
04:01-05:00, Wed., 18 Jun. 0.0305 0.0260 0.0281
03:01-04:00, Wed., 18 Jun. 0.0310 0.0258 0.0279
02:01-03:00, Wed., 18 Jun. 0.0300 0.0258 0.0278
01:01-02:00, Wed., 18 Jun. 0.0298 0.0262 0.0280
00:01-01:00, Wed., 18 Jun. 0.0296 0.0252 0.0278
23:01-24:00, Tue., 17 Jun. 0.0297 0.0258 0.0275
22:01-23:00, Tue., 17 Jun. 0.0297 0.0242 0.0272
21:01-22:00, Tue., 17 Jun. 0.0294 0.0258 0.0274
20:01-21:00, Tue., 17 Jun. 0.0293 0.0256 0.0275
19:01-20:00, Tue., 17 Jun. 0.0302 0.0261 0.0277
18:01-19:00, Tue., 17 Jun. 0.0297 0.0256 0.0277
17:01-18:00, Tue., 17 Jun. 0.0299 0.0263 0.0280
16:01-17:00, Tue., 17 Jun. 0.0301 0.0260 0.0279
15:01-16:00, Tue., 17 Jun. 0.0304 0.0246 0.0279
14:01-15:00, Tue., 17 Jun. 0.0301 0.0259 0.0277
13:01-14:00, Tue., 17 Jun. 0.0299 0.0259 0.0278
12:01-13:00, Tue., 17 Jun. 0.0304 0.0259 0.0280
11:01-12:00, Tue., 17 Jun. 0.0310 0.0252 0.0282
10:01-11:00, Tue., 17 Jun. 0.0306 0.0264 0.0286
09:01-10:00, Tue., 17 Jun. 0.0304 0.0273 0.0286
08:01-09:00, Tue., 17 Jun. 0.0307 0.0271 0.0290
07:01-08:00, Tue., 17 Jun. 0.0326 0.0268 0.0295
06:01-07:00, Tue., 17 Jun. 0.0327 0.0280 0.0298
05:01-06:00, Tue., 17 Jun. 0.0317 0.0278 0.0301
04:01-05:00, Tue., 17 Jun. 0.0321 0.0274 0.0299
03:01-04:00, Tue., 17 Jun. 0.0310 0.0272 0.0294
02:01-03:00, Tue., 17 Jun. 0.0311 0.0267 0.0284
01:01-02:00, Tue., 17 Jun. 0.0303 0.0260 0.0282
00:01-01:00, Tue., 17 Jun. 0.0307 0.0263 0.0282
23:01-24:00, Mon., 16 Jun. 0.0300 0.0260 0.0281
22:01-23:00, Mon., 16 Jun. 0.0297 0.0259 0.0277
21:01-22:00, Mon., 16 Jun. 0.0297 0.0253 0.0277
20:01-21:00, Mon., 16 Jun. 0.0301 0.0255 0.0274
19:01-20:00, Mon., 16 Jun. 0.0297 0.0251 0.0279
18:01-19:00, Mon., 16 Jun. 0.0294 0.0253 0.0278
17:01-18:00, Mon., 16 Jun. 0.0297 0.0251 0.0276
16:01-17:00, Mon., 16 Jun. 0.0294 0.0250 0.0276
15:01-16:00, Mon., 16 Jun. 0.0296 0.0249 0.0274
14:01-15:00, Mon., 16 Jun. 0.0298 0.0256 0.0275
13:01-14:00, Mon., 16 Jun. 0.0298 0.0252 0.0275
12:01-13:00, Mon., 16 Jun. 0.0286 0.0256 0.0273
11:01-12:00, Mon., 16 Jun. 0.0298 0.0249 0.0274
10:01-11:00, Mon., 16 Jun. 0.0293 0.0258 0.0272
09:01-10:00, Mon., 16 Jun. 0.0300 0.0257 0.0274
08:01-09:00, Mon., 16 Jun. 0.0296 0.0254 0.0273
07:01-08:00, Mon., 16 Jun. 0.0311 0.0256 0.0281
06:01-07:00, Mon., 16 Jun. 0.0303 0.0262 0.0283
05:01-06:00, Mon., 16 Jun. 0.0301 0.0252 0.0277
04:01-05:00, Mon., 16 Jun. 0.0301 0.0256 0.0276
03:01-04:00, Mon., 16 Jun. 0.0297 0.0256 0.0277
02:01-03:00, Mon., 16 Jun. 0.0299 0.0250 0.0275
01:01-02:00, Mon., 16 Jun. 0.0298 0.0256 0.0276
00:01-01:00, Mon., 16 Jun. 0.0294 0.0252 0.0277