Measurement results by the hour (Chofu) 4 Apr., 2022 - 10 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., 10 Apr. 0.0290 0.0256 0.0274
22:01-23:00, Sun., 10 Apr. 0.0293 0.0253 0.0272
21:01-22:00, Sun., 10 Apr. 0.0286 0.0245 0.0271
20:01-21:00, Sun., 10 Apr. 0.0285 0.0257 0.0270
19:01-20:00, Sun., 10 Apr. 0.0293 0.0251 0.0271
18:01-19:00, Sun., 10 Apr. 0.0293 0.0250 0.0269
17:01-18:00, Sun., 10 Apr. 0.0304 0.0249 0.0271
16:01-17:00, Sun., 10 Apr. 0.0295 0.0250 0.0272
15:01-16:00, Sun., 10 Apr. 0.0282 0.0253 0.0270
14:01-15:00, Sun., 10 Apr. 0.0288 0.0253 0.0272
13:01-14:00, Sun., 10 Apr. 0.0291 0.0255 0.0273
12:01-13:00, Sun., 10 Apr. 0.0293 0.0255 0.0273
11:01-12:00, Sun., 10 Apr. 0.0295 0.0255 0.0271
10:01-11:00, Sun., 10 Apr. 0.0290 0.0258 0.0276
09:01-10:00, Sun., 10 Apr. 0.0293 0.0258 0.0277
08:01-09:00, Sun., 10 Apr. 0.0310 0.0261 0.0285
07:01-08:00, Sun., 10 Apr. 0.0306 0.0267 0.0287
06:01-07:00, Sun., 10 Apr. 0.0313 0.0272 0.0294
05:01-06:00, Sun., 10 Apr. 0.0304 0.0266 0.0286
04:01-05:00, Sun., 10 Apr. 0.0307 0.0261 0.0285
03:01-04:00, Sun., 10 Apr. 0.0292 0.0263 0.0279
02:01-03:00, Sun., 10 Apr. 0.0293 0.0257 0.0274
01:01-02:00, Sun., 10 Apr. 0.0290 0.0254 0.0275
00:01-01:00, Sun., 10 Apr. 0.0303 0.0261 0.0280
23:01-24:00, Sat., 09 Apr. 0.0296 0.0258 0.0277
22:01-23:00, Sat., 09 Apr. 0.0294 0.0260 0.0277
21:01-22:00, Sat., 09 Apr. 0.0287 0.0247 0.0271
20:01-21:00, Sat., 09 Apr. 0.0289 0.0253 0.0271
19:01-20:00, Sat., 09 Apr. 0.0285 0.0255 0.0268
18:01-19:00, Sat., 09 Apr. 0.0286 0.0249 0.0266
17:01-18:00, Sat., 09 Apr. 0.0287 0.0248 0.0269
16:01-17:00, Sat., 09 Apr. 0.0286 0.0247 0.0265
15:01-16:00, Sat., 09 Apr. 0.0292 0.0256 0.0271
14:01-15:00, Sat., 09 Apr. 0.0290 0.0254 0.0271
13:01-14:00, Sat., 09 Apr. 0.0286 0.0250 0.0269
12:01-13:00, Sat., 09 Apr. 0.0285 0.0250 0.0270
11:01-12:00, Sat., 09 Apr. 0.0290 0.0245 0.0267
10:01-11:00, Sat., 09 Apr. 0.0289 0.0245 0.0272
09:01-10:00, Sat., 09 Apr. 0.0294 0.0260 0.0275
08:01-09:00, Sat., 09 Apr. 0.0293 0.0260 0.0274
07:01-08:00, Sat., 09 Apr. 0.0300 0.0264 0.0278
06:01-07:00, Sat., 09 Apr. 0.0293 0.0254 0.0275
05:01-06:00, Sat., 09 Apr. 0.0288 0.0256 0.0273
04:01-05:00, Sat., 09 Apr. 0.0290 0.0254 0.0272
03:01-04:00, Sat., 09 Apr. 0.0295 0.0257 0.0274
02:01-03:00, Sat., 09 Apr. 0.0285 0.0255 0.0270
01:01-02:00, Sat., 09 Apr. 0.0293 0.0247 0.0273
00:01-01:00, Sat., 09 Apr. 0.0287 0.0248 0.0271
23:01-24:00, Fri., 08 Apr. 0.0286 0.0253 0.0270
22:01-23:00, Fri., 08 Apr. 0.0287 0.0254 0.0268
21:01-22:00, Fri., 08 Apr. 0.0288 0.0250 0.0269
20:01-21:00, Fri., 08 Apr. 0.0289 0.0252 0.0271
19:01-20:00, Fri., 08 Apr. 0.0284 0.0248 0.0266
18:01-19:00, Fri., 08 Apr. 0.0286 0.0249 0.0267
17:01-18:00, Fri., 08 Apr. 0.0285 0.0253 0.0269
16:01-17:00, Fri., 08 Apr. 0.0287 0.0251 0.0270
15:01-16:00, Fri., 08 Apr. 0.0289 0.0252 0.0268
14:01-15:00, Fri., 08 Apr. 0.0294 0.0255 0.0269
13:01-14:00, Fri., 08 Apr. 0.0285 0.0251 0.0270
12:01-13:00, Fri., 08 Apr. 0.0296 0.0255 0.0272
11:01-12:00, Fri., 08 Apr. 0.0288 0.0240 0.0268
10:01-11:00, Fri., 08 Apr. 0.0295 0.0259 0.0274
09:01-10:00, Fri., 08 Apr. 0.0292 0.0256 0.0273
08:01-09:00, Fri., 08 Apr. 0.0297 0.0256 0.0276
07:01-08:00, Fri., 08 Apr. 0.0300 0.0262 0.0277
06:01-07:00, Fri., 08 Apr. 0.0302 0.0262 0.0281
05:01-06:00, Fri., 08 Apr. 0.0294 0.0257 0.0273
04:01-05:00, Fri., 08 Apr. 0.0300 0.0252 0.0272
03:01-04:00, Fri., 08 Apr. 0.0294 0.0254 0.0275
02:01-03:00, Fri., 08 Apr. 0.0297 0.0250 0.0273
01:01-02:00, Fri., 08 Apr. 0.0282 0.0252 0.0269
00:01-01:00, Fri., 08 Apr. 0.0291 0.0245 0.0267
23:01-24:00, Thu., 07 Apr. 0.0288 0.0243 0.0269
22:01-23:00, Thu., 07 Apr. 0.0281 0.0239 0.0265
21:01-22:00, Thu., 07 Apr. 0.0291 0.0248 0.0266
20:01-21:00, Thu., 07 Apr. 0.0284 0.0247 0.0267
19:01-20:00, Thu., 07 Apr. 0.0284 0.0247 0.0267
18:01-19:00, Thu., 07 Apr. 0.0282 0.0247 0.0265
17:01-18:00, Thu., 07 Apr. 0.0288 0.0246 0.0265
16:01-17:00, Thu., 07 Apr. 0.0280 0.0242 0.0263
15:01-16:00, Thu., 07 Apr. 0.0286 0.0241 0.0263
14:01-15:00, Thu., 07 Apr. 0.0288 0.0250 0.0265
13:01-14:00, Thu., 07 Apr. 0.0288 0.0247 0.0265
12:01-13:00, Thu., 07 Apr. 0.0291 0.0248 0.0268
11:01-12:00, Thu., 07 Apr. 0.0282 0.0247 0.0267
10:01-11:00, Thu., 07 Apr. 0.0287 0.0245 0.0267
09:01-10:00, Thu., 07 Apr. 0.0279 0.0252 0.0267
08:01-09:00, Thu., 07 Apr. 0.0287 0.0240 0.0267
07:01-08:00, Thu., 07 Apr. 0.0297 0.0258 0.0272
06:01-07:00, Thu., 07 Apr. 0.0292 0.0256 0.0273
05:01-06:00, Thu., 07 Apr. 0.0292 0.0251 0.0274
04:01-05:00, Thu., 07 Apr. 0.0289 0.0252 0.0274
03:01-04:00, Thu., 07 Apr. 0.0289 0.0253 0.0272
02:01-03:00, Thu., 07 Apr. 0.0295 0.0254 0.0274
01:01-02:00, Thu., 07 Apr. 0.0294 0.0256 0.0273
00:01-01:00, Thu., 07 Apr. 0.0287 0.0249 0.0269
23:01-24:00, Wed., 06 Apr. 0.0291 0.0250 0.0271
22:01-23:00, Wed., 06 Apr. 0.0297 0.0246 0.0268
21:01-22:00, Wed., 06 Apr. 0.0288 0.0241 0.0263
20:01-21:00, Wed., 06 Apr. 0.0284 0.0245 0.0266
19:01-20:00, Wed., 06 Apr. 0.0279 0.0239 0.0264
18:01-19:00, Wed., 06 Apr. 0.0289 0.0251 0.0265
17:01-18:00, Wed., 06 Apr. 0.0283 0.0247 0.0263
16:01-17:00, Wed., 06 Apr. 0.0285 0.0248 0.0264
15:01-16:00, Wed., 06 Apr. 0.0287 0.0237 0.0263
14:01-15:00, Wed., 06 Apr. 0.0284 0.0245 0.0264
13:01-14:00, Wed., 06 Apr. 0.0286 0.0241 0.0262
12:01-13:00, Wed., 06 Apr. 0.0279 0.0245 0.0261
11:01-12:00, Wed., 06 Apr. 0.0288 0.0246 0.0261
10:01-11:00, Wed., 06 Apr. 0.0286 0.0240 0.0265
09:01-10:00, Wed., 06 Apr. 0.0277 0.0246 0.0263
08:01-09:00, Wed., 06 Apr. 0.0282 0.0244 0.0265
07:01-08:00, Wed., 06 Apr. 0.0284 0.0246 0.0262
06:01-07:00, Wed., 06 Apr. 0.0292 0.0248 0.0264
05:01-06:00, Wed., 06 Apr. 0.0281 0.0247 0.0264
04:01-05:00, Wed., 06 Apr. 0.0278 0.0234 0.0258
03:01-04:00, Wed., 06 Apr. 0.0280 0.0242 0.0261
02:01-03:00, Wed., 06 Apr. 0.0280 0.0245 0.0260
01:01-02:00, Wed., 06 Apr. 0.0279 0.0238 0.0260
00:01-01:00, Wed., 06 Apr. 0.0278 0.0241 0.0260
23:01-24:00, Tue., 05 Apr. 0.0276 0.0247 0.0261
22:01-23:00, Tue., 05 Apr. 0.0272 0.0235 0.0258
21:01-22:00, Tue., 05 Apr. 0.0274 0.0240 0.0257
20:01-21:00, Tue., 05 Apr. 0.0281 0.0237 0.0258
19:01-20:00, Tue., 05 Apr. 0.0280 0.0236 0.0258
18:01-19:00, Tue., 05 Apr. 0.0278 0.0242 0.0257
17:01-18:00, Tue., 05 Apr. 0.0272 0.0239 0.0257
16:01-17:00, Tue., 05 Apr. 0.0274 0.0238 0.0258
15:01-16:00, Tue., 05 Apr. 0.0277 0.0237 0.0259
14:01-15:00, Tue., 05 Apr. 0.0283 0.0236 0.0260
13:01-14:00, Tue., 05 Apr. 0.0281 0.0240 0.0259
12:01-13:00, Tue., 05 Apr. 0.0282 0.0243 0.0260
11:01-12:00, Tue., 05 Apr. 0.0289 0.0246 0.0265
10:01-11:00, Tue., 05 Apr. 0.0283 0.0242 0.0264
09:01-10:00, Tue., 05 Apr. 0.0283 0.0245 0.0263
08:01-09:00, Tue., 05 Apr. 0.0281 0.0238 0.0262
07:01-08:00, Tue., 05 Apr. 0.0284 0.0245 0.0268
06:01-07:00, Tue., 05 Apr. 0.0282 0.0242 0.0265
05:01-06:00, Tue., 05 Apr. 0.0283 0.0250 0.0266
04:01-05:00, Tue., 05 Apr. 0.0294 0.0251 0.0268
03:01-04:00, Tue., 05 Apr. 0.0292 0.0250 0.0274
02:01-03:00, Tue., 05 Apr. 0.0313 0.0273 0.0290
01:01-02:00, Tue., 05 Apr. 0.0303 0.0266 0.0285
00:01-01:00, Tue., 05 Apr. 0.0305 0.0261 0.0282
23:01-24:00, Mon., 04 Apr. 0.0328 0.0274 0.0299
22:01-23:00, Mon., 04 Apr. 0.0330 0.0288 0.0306
21:01-22:00, Mon., 04 Apr. 0.0333 0.0285 0.0311
20:01-21:00, Mon., 04 Apr. 0.0336 0.0273 0.0302
19:01-20:00, Mon., 04 Apr. 0.0311 0.0274 0.0290
18:01-19:00, Mon., 04 Apr. 0.0329 0.0282 0.0303
17:01-18:00, Mon., 04 Apr. 0.0345 0.0295 0.0322
16:01-17:00, Mon., 04 Apr. 0.0322 0.0290 0.0305
15:01-16:00, Mon., 04 Apr. 0.0343 0.0295 0.0311
14:01-15:00, Mon., 04 Apr. 0.0348 0.0297 0.0326
13:01-14:00, Mon., 04 Apr. 0.0331 0.0278 0.0303
12:01-13:00, Mon., 04 Apr. 0.0346 0.0298 0.0321
11:01-12:00, Mon., 04 Apr. 0.0347 0.0308 0.0327
10:01-11:00, Mon., 04 Apr. 0.0352 0.0308 0.0328
09:01-10:00, Mon., 04 Apr. 0.0358 0.0314 0.0333
08:01-09:00, Mon., 04 Apr. 0.0344 0.0296 0.0322
07:01-08:00, Mon., 04 Apr. 0.0356 0.0303 0.0330
06:01-07:00, Mon., 04 Apr. 0.0343 0.0295 0.0321
05:01-06:00, Mon., 04 Apr. 0.0332 0.0292 0.0315
04:01-05:00, Mon., 04 Apr. 0.0340 0.0293 0.0316
03:01-04:00, Mon., 04 Apr. 0.0351 0.0298 0.0321
02:01-03:00, Mon., 04 Apr. 0.0357 0.0299 0.0321
01:01-02:00, Mon., 04 Apr. 0.0340 0.0298 0.0320
00:01-01:00, Mon., 04 Apr. 0.0354 0.0296 0.0327