Measurement results by the hour (Chofu) 26 Apr., 2021 - 2 May., 2021

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., 02 May. 0.0292 0.0249 0.0274
22:01-23:00, Sun., 02 May. 0.0292 0.0250 0.0272
21:01-22:00, Sun., 02 May. 0.0291 0.0247 0.0273
20:01-21:00, Sun., 02 May. 0.0293 0.0257 0.0273
19:01-20:00, Sun., 02 May. 0.0305 0.0257 0.0273
18:01-19:00, Sun., 02 May. 0.0289 0.0260 0.0277
17:01-18:00, Sun., 02 May. 0.0321 0.0268 0.0292
16:01-17:00, Sun., 02 May. 0.0400 0.0296 0.0336
15:01-16:00, Sun., 02 May. 0.0428 0.0294 0.0383
14:01-15:00, Sun., 02 May. 0.0298 0.0259 0.0277
13:01-14:00, Sun., 02 May. 0.0291 0.0256 0.0273
12:01-13:00, Sun., 02 May. 0.0306 0.0256 0.0276
11:01-12:00, Sun., 02 May. 0.0294 0.0255 0.0272
10:01-11:00, Sun., 02 May. 0.0298 0.0254 0.0272
09:01-10:00, Sun., 02 May. 0.0296 0.0255 0.0272
08:01-09:00, Sun., 02 May. 0.0289 0.0256 0.0275
07:01-08:00, Sun., 02 May. 0.0296 0.0253 0.0274
06:01-07:00, Sun., 02 May. 0.0293 0.0252 0.0273
05:01-06:00, Sun., 02 May. 0.0298 0.0253 0.0273
04:01-05:00, Sun., 02 May. 0.0296 0.0260 0.0277
03:01-04:00, Sun., 02 May. 0.0291 0.0256 0.0274
02:01-03:00, Sun., 02 May. 0.0293 0.0247 0.0271
01:01-02:00, Sun., 02 May. 0.0291 0.0251 0.0270
00:01-01:00, Sun., 02 May. 0.0292 0.0243 0.0271
23:01-24:00, Sat., 01 May. 0.0294 0.0250 0.0275
22:01-23:00, Sat., 01 May. 0.0323 0.0267 0.0289
21:01-22:00, Sat., 01 May. 0.0422 0.0293 0.0343
20:01-21:00, Sat., 01 May. 0.0514 0.0382 0.0447
19:01-20:00, Sat., 01 May. 0.0475 0.0342 0.0402
18:01-19:00, Sat., 01 May. 0.0375 0.0266 0.0297
17:01-18:00, Sat., 01 May. 0.0306 0.0271 0.0287
16:01-17:00, Sat., 01 May. 0.0345 0.0288 0.0316
15:01-16:00, Sat., 01 May. 0.0350 0.0262 0.0306
14:01-15:00, Sat., 01 May. 0.0299 0.0254 0.0276
13:01-14:00, Sat., 01 May. 0.0294 0.0258 0.0274
12:01-13:00, Sat., 01 May. 0.0291 0.0250 0.0274
11:01-12:00, Sat., 01 May. 0.0298 0.0256 0.0276
10:01-11:00, Sat., 01 May. 0.0295 0.0258 0.0277
09:01-10:00, Sat., 01 May. 0.0292 0.0261 0.0277
08:01-09:00, Sat., 01 May. 0.0296 0.0258 0.0280
07:01-08:00, Sat., 01 May. 0.0308 0.0264 0.0284
06:01-07:00, Sat., 01 May. 0.0301 0.0269 0.0285
05:01-06:00, Sat., 01 May. 0.0308 0.0271 0.0286
04:01-05:00, Sat., 01 May. 0.0306 0.0263 0.0284
03:01-04:00, Sat., 01 May. 0.0297 0.0261 0.0280
02:01-03:00, Sat., 01 May. 0.0289 0.0260 0.0276
01:01-02:00, Sat., 01 May. 0.0294 0.0257 0.0275
00:01-01:00, Sat., 01 May. 0.0289 0.0253 0.0273
23:01-24:00, Fri., 30 Apr. 0.0289 0.0257 0.0273
22:01-23:00, Fri., 30 Apr. 0.0291 0.0257 0.0273
21:01-22:00, Fri., 30 Apr. 0.0291 0.0262 0.0275
20:01-21:00, Fri., 30 Apr. 0.0295 0.0248 0.0275
19:01-20:00, Fri., 30 Apr. 0.0303 0.0252 0.0273
18:01-19:00, Fri., 30 Apr. 0.0292 0.0259 0.0274
17:01-18:00, Fri., 30 Apr. 0.0287 0.0251 0.0272
16:01-17:00, Fri., 30 Apr. 0.0289 0.0251 0.0272
15:01-16:00, Fri., 30 Apr. 0.0291 0.0254 0.0272
14:01-15:00, Fri., 30 Apr. 0.0289 0.0248 0.0273
13:01-14:00, Fri., 30 Apr. 0.0288 0.0253 0.0271
12:01-13:00, Fri., 30 Apr. 0.0289 0.0250 0.0270
11:01-12:00, Fri., 30 Apr. 0.0294 0.0254 0.0270
10:01-11:00, Fri., 30 Apr. 0.0286 0.0253 0.0272
09:01-10:00, Fri., 30 Apr. 0.0295 0.0250 0.0270
08:01-09:00, Fri., 30 Apr. 0.0293 0.0248 0.0274
07:01-08:00, Fri., 30 Apr. 0.0305 0.0258 0.0275
06:01-07:00, Fri., 30 Apr. 0.0298 0.0247 0.0275
05:01-06:00, Fri., 30 Apr. 0.0293 0.0254 0.0273
04:01-05:00, Fri., 30 Apr. 0.0291 0.0253 0.0272
03:01-04:00, Fri., 30 Apr. 0.0288 0.0252 0.0273
02:01-03:00, Fri., 30 Apr. 0.0290 0.0254 0.0274
01:01-02:00, Fri., 30 Apr. 0.0315 0.0256 0.0288
00:01-01:00, Fri., 30 Apr. 0.0337 0.0285 0.0313
23:01-24:00, Thu., 29 Apr. 0.0347 0.0297 0.0325
22:01-23:00, Thu., 29 Apr. 0.0362 0.0314 0.0334
21:01-22:00, Thu., 29 Apr. 0.0363 0.0304 0.0329
20:01-21:00, Thu., 29 Apr. 0.0327 0.0279 0.0300
19:01-20:00, Thu., 29 Apr. 0.0308 0.0279 0.0290
18:01-19:00, Thu., 29 Apr. 0.0352 0.0278 0.0316
17:01-18:00, Thu., 29 Apr. 0.0363 0.0321 0.0343
16:01-17:00, Thu., 29 Apr. 0.0357 0.0289 0.0325
15:01-16:00, Thu., 29 Apr. 0.0317 0.0278 0.0300
14:01-15:00, Thu., 29 Apr. 0.0325 0.0282 0.0304
13:01-14:00, Thu., 29 Apr. 0.0314 0.0271 0.0288
12:01-13:00, Thu., 29 Apr. 0.0312 0.0268 0.0293
11:01-12:00, Thu., 29 Apr. 0.0310 0.0270 0.0289
10:01-11:00, Thu., 29 Apr. 0.0317 0.0265 0.0291
09:01-10:00, Thu., 29 Apr. 0.0305 0.0260 0.0282
08:01-09:00, Thu., 29 Apr. 0.0301 0.0255 0.0281
07:01-08:00, Thu., 29 Apr. 0.0302 0.0270 0.0286
06:01-07:00, Thu., 29 Apr. 0.0311 0.0266 0.0292
05:01-06:00, Thu., 29 Apr. 0.0327 0.0275 0.0300
04:01-05:00, Thu., 29 Apr. 0.0340 0.0291 0.0317
03:01-04:00, Thu., 29 Apr. 0.0316 0.0272 0.0293
02:01-03:00, Thu., 29 Apr. 0.0322 0.0280 0.0296
01:01-02:00, Thu., 29 Apr. 0.0313 0.0277 0.0296
00:01-01:00, Thu., 29 Apr. 0.0305 0.0263 0.0284
23:01-24:00, Wed., 28 Apr. 0.0303 0.0261 0.0284
22:01-23:00, Wed., 28 Apr. 0.0314 0.0257 0.0281
21:01-22:00, Wed., 28 Apr. 0.0297 0.0261 0.0280
20:01-21:00, Wed., 28 Apr. 0.0296 0.0263 0.0281
19:01-20:00, Wed., 28 Apr. 0.0304 0.0258 0.0280
18:01-19:00, Wed., 28 Apr. 0.0304 0.0264 0.0279
17:01-18:00, Wed., 28 Apr. 0.0293 0.0251 0.0279
16:01-17:00, Wed., 28 Apr. 0.0298 0.0260 0.0279
15:01-16:00, Wed., 28 Apr. 0.0306 0.0264 0.0282
14:01-15:00, Wed., 28 Apr. 0.0300 0.0256 0.0281
13:01-14:00, Wed., 28 Apr. 0.0300 0.0266 0.0284
12:01-13:00, Wed., 28 Apr. 0.0300 0.0256 0.0279
11:01-12:00, Wed., 28 Apr. 0.0312 0.0257 0.0282
10:01-11:00, Wed., 28 Apr. 0.0302 0.0269 0.0282
09:01-10:00, Wed., 28 Apr. 0.0306 0.0270 0.0288
08:01-09:00, Wed., 28 Apr. 0.0310 0.0266 0.0286
07:01-08:00, Wed., 28 Apr. 0.0308 0.0281 0.0293
06:01-07:00, Wed., 28 Apr. 0.0313 0.0271 0.0292
05:01-06:00, Wed., 28 Apr. 0.0315 0.0272 0.0291
04:01-05:00, Wed., 28 Apr. 0.0308 0.0269 0.0286
03:01-04:00, Wed., 28 Apr. 0.0302 0.0263 0.0285
02:01-03:00, Wed., 28 Apr. 0.0308 0.0270 0.0287
01:01-02:00, Wed., 28 Apr. 0.0312 0.0275 0.0290
00:01-01:00, Wed., 28 Apr. 0.0307 0.0265 0.0284
23:01-24:00, Tue., 27 Apr. 0.0297 0.0253 0.0277
22:01-23:00, Tue., 27 Apr. 0.0302 0.0260 0.0280
21:01-22:00, Tue., 27 Apr. 0.0298 0.0266 0.0280
20:01-21:00, Tue., 27 Apr. 0.0300 0.0267 0.0281
19:01-20:00, Tue., 27 Apr. 0.0299 0.0264 0.0279
18:01-19:00, Tue., 27 Apr. 0.0302 0.0261 0.0281
17:01-18:00, Tue., 27 Apr. 0.0300 0.0267 0.0282
16:01-17:00, Tue., 27 Apr. 0.0294 0.0265 0.0279
15:01-16:00, Tue., 27 Apr. 0.0305 0.0263 0.0282
14:01-15:00, Tue., 27 Apr. 0.0301 0.0262 0.0280
13:01-14:00, Tue., 27 Apr. 0.0296 0.0263 0.0283
12:01-13:00, Tue., 27 Apr. 0.0297 0.0260 0.0281
11:01-12:00, Tue., 27 Apr. 0.0299 0.0261 0.0281
10:01-11:00, Tue., 27 Apr. 0.0299 0.0262 0.0280
09:01-10:00, Tue., 27 Apr. 0.0302 0.0261 0.0283
08:01-09:00, Tue., 27 Apr. 0.0309 0.0264 0.0286
07:01-08:00, Tue., 27 Apr. 0.0314 0.0271 0.0290
06:01-07:00, Tue., 27 Apr. 0.0322 0.0273 0.0292
05:01-06:00, Tue., 27 Apr. 0.0312 0.0267 0.0289
04:01-05:00, Tue., 27 Apr. 0.0311 0.0272 0.0287
03:01-04:00, Tue., 27 Apr. 0.0306 0.0260 0.0285
02:01-03:00, Tue., 27 Apr. 0.0299 0.0262 0.0282
01:01-02:00, Tue., 27 Apr. 0.0303 0.0265 0.0281
00:01-01:00, Tue., 27 Apr. 0.0305 0.0260 0.0280
23:01-24:00, Mon., 26 Apr. 0.0304 0.0261 0.0280
22:01-23:00, Mon., 26 Apr. 0.0302 0.0261 0.0280
21:01-22:00, Mon., 26 Apr. 0.0298 0.0256 0.0282
20:01-21:00, Mon., 26 Apr. 0.0298 0.0251 0.0278
19:01-20:00, Mon., 26 Apr. 0.0297 0.0263 0.0279
18:01-19:00, Mon., 26 Apr. 0.0302 0.0263 0.0279
17:01-18:00, Mon., 26 Apr. 0.0303 0.0261 0.0279
16:01-17:00, Mon., 26 Apr. 0.0300 0.0264 0.0280
15:01-16:00, Mon., 26 Apr. 0.0300 0.0265 0.0282
14:01-15:00, Mon., 26 Apr. 0.0299 0.0261 0.0281
13:01-14:00, Mon., 26 Apr. 0.0297 0.0260 0.0279
12:01-13:00, Mon., 26 Apr. 0.0302 0.0262 0.0284
11:01-12:00, Mon., 26 Apr. 0.0302 0.0254 0.0280
10:01-11:00, Mon., 26 Apr. 0.0301 0.0263 0.0283
09:01-10:00, Mon., 26 Apr. 0.0300 0.0263 0.0283
08:01-09:00, Mon., 26 Apr. 0.0304 0.0265 0.0283
07:01-08:00, Mon., 26 Apr. 0.0298 0.0264 0.0282
06:01-07:00, Mon., 26 Apr. 0.0309 0.0263 0.0283
05:01-06:00, Mon., 26 Apr. 0.0308 0.0253 0.0281
04:01-05:00, Mon., 26 Apr. 0.0305 0.0266 0.0281
03:01-04:00, Mon., 26 Apr. 0.0301 0.0263 0.0281
02:01-03:00, Mon., 26 Apr. 0.0310 0.0263 0.0278
01:01-02:00, Mon., 26 Apr. 0.0296 0.0262 0.0281
00:01-01:00, Mon., 26 Apr. 0.0303 0.0263 0.0280