Measurement results by the hour (Chofu) 11 Apr., 2022 - 17 Apr., 2022

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., 17 Apr. 0.0287 0.0248 0.0267
22:01-23:00, Sun., 17 Apr. 0.0289 0.0251 0.0268
21:01-22:00, Sun., 17 Apr. 0.0282 0.0250 0.0268
20:01-21:00, Sun., 17 Apr. 0.0291 0.0257 0.0274
19:01-20:00, Sun., 17 Apr. 0.0292 0.0251 0.0271
18:01-19:00, Sun., 17 Apr. 0.0284 0.0244 0.0265
17:01-18:00, Sun., 17 Apr. 0.0278 0.0249 0.0265
16:01-17:00, Sun., 17 Apr. 0.0279 0.0236 0.0263
15:01-16:00, Sun., 17 Apr. 0.0284 0.0245 0.0263
14:01-15:00, Sun., 17 Apr. 0.0286 0.0245 0.0265
13:01-14:00, Sun., 17 Apr. 0.0286 0.0247 0.0265
12:01-13:00, Sun., 17 Apr. 0.0288 0.0250 0.0265
11:01-12:00, Sun., 17 Apr. 0.0286 0.0244 0.0268
10:01-11:00, Sun., 17 Apr. 0.0290 0.0244 0.0269
09:01-10:00, Sun., 17 Apr. 0.0294 0.0253 0.0274
08:01-09:00, Sun., 17 Apr. 0.0296 0.0255 0.0272
07:01-08:00, Sun., 17 Apr. 0.0292 0.0256 0.0275
06:01-07:00, Sun., 17 Apr. 0.0293 0.0246 0.0270
05:01-06:00, Sun., 17 Apr. 0.0290 0.0251 0.0270
04:01-05:00, Sun., 17 Apr. 0.0283 0.0250 0.0268
03:01-04:00, Sun., 17 Apr. 0.0285 0.0252 0.0269
02:01-03:00, Sun., 17 Apr. 0.0284 0.0248 0.0267
01:01-02:00, Sun., 17 Apr. 0.0286 0.0250 0.0266
00:01-01:00, Sun., 17 Apr. 0.0284 0.0246 0.0266
23:01-24:00, Sat., 16 Apr. 0.0280 0.0244 0.0266
22:01-23:00, Sat., 16 Apr. 0.0278 0.0243 0.0265
21:01-22:00, Sat., 16 Apr. 0.0281 0.0246 0.0263
20:01-21:00, Sat., 16 Apr. 0.0276 0.0250 0.0262
19:01-20:00, Sat., 16 Apr. 0.0276 0.0243 0.0261
18:01-19:00, Sat., 16 Apr. 0.0280 0.0247 0.0263
17:01-18:00, Sat., 16 Apr. 0.0289 0.0246 0.0265
16:01-17:00, Sat., 16 Apr. 0.0282 0.0240 0.0262
15:01-16:00, Sat., 16 Apr. 0.0284 0.0245 0.0262
14:01-15:00, Sat., 16 Apr. 0.0280 0.0243 0.0263
13:01-14:00, Sat., 16 Apr. 0.0283 0.0249 0.0266
12:01-13:00, Sat., 16 Apr. 0.0282 0.0243 0.0265
11:01-12:00, Sat., 16 Apr. 0.0290 0.0244 0.0264
10:01-11:00, Sat., 16 Apr. 0.0285 0.0243 0.0265
09:01-10:00, Sat., 16 Apr. 0.0289 0.0243 0.0268
08:01-09:00, Sat., 16 Apr. 0.0293 0.0252 0.0272
07:01-08:00, Sat., 16 Apr. 0.0334 0.0262 0.0298
06:01-07:00, Sat., 16 Apr. 0.0399 0.0310 0.0346
05:01-06:00, Sat., 16 Apr. 0.0422 0.0276 0.0355
04:01-05:00, Sat., 16 Apr. 0.0295 0.0247 0.0270
03:01-04:00, Sat., 16 Apr. 0.0290 0.0250 0.0268
02:01-03:00, Sat., 16 Apr. 0.0292 0.0253 0.0271
01:01-02:00, Sat., 16 Apr. 0.0302 0.0254 0.0278
00:01-01:00, Sat., 16 Apr. 0.0304 0.0262 0.0285
23:01-24:00, Fri., 15 Apr. 0.0314 0.0277 0.0294
22:01-23:00, Fri., 15 Apr. 0.0326 0.0282 0.0303
21:01-22:00, Fri., 15 Apr. 0.0320 0.0285 0.0302
20:01-21:00, Fri., 15 Apr. 0.0314 0.0266 0.0293
19:01-20:00, Fri., 15 Apr. 0.0301 0.0261 0.0282
18:01-19:00, Fri., 15 Apr. 0.0308 0.0253 0.0276
17:01-18:00, Fri., 15 Apr. 0.0307 0.0274 0.0291
16:01-17:00, Fri., 15 Apr. 0.0315 0.0282 0.0298
15:01-16:00, Fri., 15 Apr. 0.0328 0.0281 0.0305
14:01-15:00, Fri., 15 Apr. 0.0322 0.0269 0.0292
13:01-14:00, Fri., 15 Apr. 0.0303 0.0267 0.0282
12:01-13:00, Fri., 15 Apr. 0.0310 0.0271 0.0292
11:01-12:00, Fri., 15 Apr. 0.0306 0.0266 0.0285
10:01-11:00, Fri., 15 Apr. 0.0304 0.0267 0.0285
09:01-10:00, Fri., 15 Apr. 0.0314 0.0273 0.0293
08:01-09:00, Fri., 15 Apr. 0.0318 0.0269 0.0291
07:01-08:00, Fri., 15 Apr. 0.0289 0.0250 0.0265
06:01-07:00, Fri., 15 Apr. 0.0293 0.0252 0.0267
05:01-06:00, Fri., 15 Apr. 0.0296 0.0257 0.0277
04:01-05:00, Fri., 15 Apr. 0.0313 0.0274 0.0294
03:01-04:00, Fri., 15 Apr. 0.0313 0.0272 0.0291
02:01-03:00, Fri., 15 Apr. 0.0307 0.0263 0.0288
01:01-02:00, Fri., 15 Apr. 0.0307 0.0269 0.0288
00:01-01:00, Fri., 15 Apr. 0.0319 0.0269 0.0294
23:01-24:00, Thu., 14 Apr. 0.0333 0.0281 0.0310
22:01-23:00, Thu., 14 Apr. 0.0338 0.0283 0.0305
21:01-22:00, Thu., 14 Apr. 0.0312 0.0272 0.0292
20:01-21:00, Thu., 14 Apr. 0.0303 0.0268 0.0285
19:01-20:00, Thu., 14 Apr. 0.0315 0.0273 0.0296
18:01-19:00, Thu., 14 Apr. 0.0326 0.0278 0.0307
17:01-18:00, Thu., 14 Apr. 0.0337 0.0289 0.0316
16:01-17:00, Thu., 14 Apr. 0.0329 0.0275 0.0307
15:01-16:00, Thu., 14 Apr. 0.0339 0.0297 0.0322
14:01-15:00, Thu., 14 Apr. 0.0334 0.0294 0.0314
13:01-14:00, Thu., 14 Apr. 0.0321 0.0284 0.0302
12:01-13:00, Thu., 14 Apr. 0.0318 0.0278 0.0299
11:01-12:00, Thu., 14 Apr. 0.0323 0.0279 0.0302
10:01-11:00, Thu., 14 Apr. 0.0317 0.0274 0.0297
09:01-10:00, Thu., 14 Apr. 0.0314 0.0279 0.0295
08:01-09:00, Thu., 14 Apr. 0.0331 0.0281 0.0308
07:01-08:00, Thu., 14 Apr. 0.0331 0.0259 0.0296
06:01-07:00, Thu., 14 Apr. 0.0294 0.0256 0.0278
05:01-06:00, Thu., 14 Apr. 0.0302 0.0254 0.0279
04:01-05:00, Thu., 14 Apr. 0.0296 0.0259 0.0278
03:01-04:00, Thu., 14 Apr. 0.0298 0.0253 0.0277
02:01-03:00, Thu., 14 Apr. 0.0290 0.0258 0.0275
01:01-02:00, Thu., 14 Apr. 0.0296 0.0248 0.0271
00:01-01:00, Thu., 14 Apr. 0.0296 0.0257 0.0274
23:01-24:00, Wed., 13 Apr. 0.0297 0.0264 0.0278
22:01-23:00, Wed., 13 Apr. 0.0294 0.0257 0.0273
21:01-22:00, Wed., 13 Apr. 0.0287 0.0249 0.0271
20:01-21:00, Wed., 13 Apr. 0.0285 0.0255 0.0270
19:01-20:00, Wed., 13 Apr. 0.0287 0.0249 0.0269
18:01-19:00, Wed., 13 Apr. 0.0290 0.0254 0.0271
17:01-18:00, Wed., 13 Apr. 0.0288 0.0251 0.0272
16:01-17:00, Wed., 13 Apr. 0.0306 0.0257 0.0272
15:01-16:00, Wed., 13 Apr. 0.0294 0.0258 0.0273
14:01-15:00, Wed., 13 Apr. 0.0290 0.0254 0.0273
13:01-14:00, Wed., 13 Apr. 0.0297 0.0260 0.0278
12:01-13:00, Wed., 13 Apr. 0.0288 0.0257 0.0275
11:01-12:00, Wed., 13 Apr. 0.0297 0.0260 0.0279
10:01-11:00, Wed., 13 Apr. 0.0301 0.0258 0.0282
09:01-10:00, Wed., 13 Apr. 0.0307 0.0271 0.0286
08:01-09:00, Wed., 13 Apr. 0.0312 0.0267 0.0292
07:01-08:00, Wed., 13 Apr. 0.0319 0.0272 0.0295
06:01-07:00, Wed., 13 Apr. 0.0320 0.0285 0.0301
05:01-06:00, Wed., 13 Apr. 0.0319 0.0279 0.0298
04:01-05:00, Wed., 13 Apr. 0.0320 0.0278 0.0298
03:01-04:00, Wed., 13 Apr. 0.0310 0.0273 0.0293
02:01-03:00, Wed., 13 Apr. 0.0301 0.0257 0.0286
01:01-02:00, Wed., 13 Apr. 0.0313 0.0259 0.0285
00:01-01:00, Wed., 13 Apr. 0.0296 0.0254 0.0277
23:01-24:00, Tue., 12 Apr. 0.0289 0.0257 0.0272
22:01-23:00, Tue., 12 Apr. 0.0287 0.0253 0.0272
21:01-22:00, Tue., 12 Apr. 0.0287 0.0255 0.0272
20:01-21:00, Tue., 12 Apr. 0.0299 0.0248 0.0270
19:01-20:00, Tue., 12 Apr. 0.0285 0.0251 0.0268
18:01-19:00, Tue., 12 Apr. 0.0284 0.0252 0.0266
17:01-18:00, Tue., 12 Apr. 0.0291 0.0255 0.0269
16:01-17:00, Tue., 12 Apr. 0.0296 0.0260 0.0271
15:01-16:00, Tue., 12 Apr. 0.0293 0.0245 0.0271
14:01-15:00, Tue., 12 Apr. 0.0288 0.0252 0.0270
13:01-14:00, Tue., 12 Apr. 0.0284 0.0251 0.0270
12:01-13:00, Tue., 12 Apr. 0.0295 0.0251 0.0270
11:01-12:00, Tue., 12 Apr. 0.0296 0.0254 0.0270
10:01-11:00, Tue., 12 Apr. 0.0293 0.0247 0.0272
09:01-10:00, Tue., 12 Apr. 0.0290 0.0258 0.0273
08:01-09:00, Tue., 12 Apr. 0.0301 0.0248 0.0277
07:01-08:00, Tue., 12 Apr. 0.0295 0.0261 0.0281
06:01-07:00, Tue., 12 Apr. 0.0306 0.0255 0.0281
05:01-06:00, Tue., 12 Apr. 0.0300 0.0263 0.0281
04:01-05:00, Tue., 12 Apr. 0.0296 0.0255 0.0277
03:01-04:00, Tue., 12 Apr. 0.0291 0.0259 0.0273
02:01-03:00, Tue., 12 Apr. 0.0289 0.0260 0.0273
01:01-02:00, Tue., 12 Apr. 0.0293 0.0252 0.0270
00:01-01:00, Tue., 12 Apr. 0.0304 0.0248 0.0271
23:01-24:00, Mon., 11 Apr. 0.0287 0.0250 0.0269
22:01-23:00, Mon., 11 Apr. 0.0285 0.0244 0.0269
21:01-22:00, Mon., 11 Apr. 0.0282 0.0247 0.0268
20:01-21:00, Mon., 11 Apr. 0.0292 0.0248 0.0269
19:01-20:00, Mon., 11 Apr. 0.0289 0.0250 0.0271
18:01-19:00, Mon., 11 Apr. 0.0282 0.0247 0.0269
17:01-18:00, Mon., 11 Apr. 0.0290 0.0247 0.0267
16:01-17:00, Mon., 11 Apr. 0.0289 0.0251 0.0268
15:01-16:00, Mon., 11 Apr. 0.0286 0.0253 0.0269
14:01-15:00, Mon., 11 Apr. 0.0288 0.0243 0.0270
13:01-14:00, Mon., 11 Apr. 0.0289 0.0255 0.0270
12:01-13:00, Mon., 11 Apr. 0.0293 0.0246 0.0271
11:01-12:00, Mon., 11 Apr. 0.0296 0.0248 0.0274
10:01-11:00, Mon., 11 Apr. 0.0292 0.0262 0.0277
09:01-10:00, Mon., 11 Apr. 0.0300 0.0266 0.0284
08:01-09:00, Mon., 11 Apr. 0.0308 0.0271 0.0292
07:01-08:00, Mon., 11 Apr. 0.0317 0.0277 0.0298
06:01-07:00, Mon., 11 Apr. 0.0314 0.0280 0.0297
05:01-06:00, Mon., 11 Apr. 0.0310 0.0278 0.0294
04:01-05:00, Mon., 11 Apr. 0.0308 0.0272 0.0291
03:01-04:00, Mon., 11 Apr. 0.0300 0.0265 0.0282
02:01-03:00, Mon., 11 Apr. 0.0294 0.0262 0.0274
01:01-02:00, Mon., 11 Apr. 0.0303 0.0248 0.0276
00:01-01:00, Mon., 11 Apr. 0.0297 0.0254 0.0271