Measurement results by the hour (Chofu) 21 Mar., 2022 - 27 Mar., 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., 27 Mar. 0.0318 0.0275 0.0296
22:01-23:00, Sun., 27 Mar. 0.0301 0.0249 0.0277
21:01-22:00, Sun., 27 Mar. 0.0285 0.0251 0.0266
20:01-21:00, Sun., 27 Mar. 0.0289 0.0245 0.0266
19:01-20:00, Sun., 27 Mar. 0.0280 0.0238 0.0264
18:01-19:00, Sun., 27 Mar. 0.0282 0.0252 0.0267
17:01-18:00, Sun., 27 Mar. 0.0289 0.0245 0.0271
16:01-17:00, Sun., 27 Mar. 0.0294 0.0247 0.0267
15:01-16:00, Sun., 27 Mar. 0.0279 0.0249 0.0266
14:01-15:00, Sun., 27 Mar. 0.0289 0.0247 0.0266
13:01-14:00, Sun., 27 Mar. 0.0287 0.0243 0.0266
12:01-13:00, Sun., 27 Mar. 0.0284 0.0252 0.0266
11:01-12:00, Sun., 27 Mar. 0.0286 0.0247 0.0270
10:01-11:00, Sun., 27 Mar. 0.0296 0.0251 0.0270
09:01-10:00, Sun., 27 Mar. 0.0298 0.0247 0.0269
08:01-09:00, Sun., 27 Mar. 0.0289 0.0258 0.0271
07:01-08:00, Sun., 27 Mar. 0.0296 0.0250 0.0270
06:01-07:00, Sun., 27 Mar. 0.0294 0.0248 0.0270
05:01-06:00, Sun., 27 Mar. 0.0285 0.0243 0.0267
04:01-05:00, Sun., 27 Mar. 0.0291 0.0247 0.0267
03:01-04:00, Sun., 27 Mar. 0.0284 0.0246 0.0265
02:01-03:00, Sun., 27 Mar. 0.0292 0.0251 0.0267
01:01-02:00, Sun., 27 Mar. 0.0290 0.0240 0.0266
00:01-01:00, Sun., 27 Mar. 0.0307 0.0254 0.0278
23:01-24:00, Sat., 26 Mar. 0.0312 0.0270 0.0294
22:01-23:00, Sat., 26 Mar. 0.0316 0.0274 0.0297
21:01-22:00, Sat., 26 Mar. 0.0322 0.0270 0.0296
20:01-21:00, Sat., 26 Mar. 0.0300 0.0260 0.0283
19:01-20:00, Sat., 26 Mar. 0.0298 0.0256 0.0277
18:01-19:00, Sat., 26 Mar. 0.0295 0.0246 0.0270
17:01-18:00, Sat., 26 Mar. 0.0289 0.0236 0.0264
16:01-17:00, Sat., 26 Mar. 0.0281 0.0244 0.0266
15:01-16:00, Sat., 26 Mar. 0.0288 0.0248 0.0269
14:01-15:00, Sat., 26 Mar. 0.0286 0.0251 0.0268
13:01-14:00, Sat., 26 Mar. 0.0285 0.0241 0.0264
12:01-13:00, Sat., 26 Mar. 0.0295 0.0244 0.0263
11:01-12:00, Sat., 26 Mar. 0.0292 0.0245 0.0267
10:01-11:00, Sat., 26 Mar. 0.0283 0.0255 0.0269
09:01-10:00, Sat., 26 Mar. 0.0286 0.0246 0.0269
08:01-09:00, Sat., 26 Mar. 0.0294 0.0258 0.0272
07:01-08:00, Sat., 26 Mar. 0.0293 0.0254 0.0276
06:01-07:00, Sat., 26 Mar. 0.0290 0.0255 0.0274
05:01-06:00, Sat., 26 Mar. 0.0293 0.0254 0.0274
04:01-05:00, Sat., 26 Mar. 0.0291 0.0251 0.0269
03:01-04:00, Sat., 26 Mar. 0.0288 0.0241 0.0269
02:01-03:00, Sat., 26 Mar. 0.0290 0.0242 0.0269
01:01-02:00, Sat., 26 Mar. 0.0292 0.0256 0.0271
00:01-01:00, Sat., 26 Mar. 0.0292 0.0256 0.0270
23:01-24:00, Fri., 25 Mar. 0.0288 0.0254 0.0271
22:01-23:00, Fri., 25 Mar. 0.0287 0.0252 0.0271
21:01-22:00, Fri., 25 Mar. 0.0289 0.0253 0.0272
20:01-21:00, Fri., 25 Mar. 0.0291 0.0247 0.0269
19:01-20:00, Fri., 25 Mar. 0.0287 0.0249 0.0270
18:01-19:00, Fri., 25 Mar. 0.0286 0.0248 0.0268
17:01-18:00, Fri., 25 Mar. 0.0288 0.0256 0.0270
16:01-17:00, Fri., 25 Mar. 0.0287 0.0250 0.0269
15:01-16:00, Fri., 25 Mar. 0.0285 0.0251 0.0269
14:01-15:00, Fri., 25 Mar. 0.0289 0.0247 0.0270
13:01-14:00, Fri., 25 Mar. 0.0376 0.0253 0.0275
12:01-13:00, Fri., 25 Mar. 0.0295 0.0252 0.0272
11:01-12:00, Fri., 25 Mar. 0.0291 0.0256 0.0274
10:01-11:00, Fri., 25 Mar. 0.0311 0.0256 0.0277
09:01-10:00, Fri., 25 Mar. 0.0304 0.0266 0.0280
08:01-09:00, Fri., 25 Mar. 0.0307 0.0268 0.0288
07:01-08:00, Fri., 25 Mar. 0.0307 0.0268 0.0289
06:01-07:00, Fri., 25 Mar. 0.0320 0.0266 0.0288
05:01-06:00, Fri., 25 Mar. 0.0305 0.0271 0.0288
04:01-05:00, Fri., 25 Mar. 0.0306 0.0270 0.0288
03:01-04:00, Fri., 25 Mar. 0.0302 0.0274 0.0285
02:01-03:00, Fri., 25 Mar. 0.0307 0.0263 0.0282
01:01-02:00, Fri., 25 Mar. 0.0299 0.0261 0.0277
00:01-01:00, Fri., 25 Mar. 0.0305 0.0254 0.0279
23:01-24:00, Thu., 24 Mar. 0.0302 0.0259 0.0278
22:01-23:00, Thu., 24 Mar. 0.0293 0.0256 0.0274
21:01-22:00, Thu., 24 Mar. 0.0284 0.0255 0.0271
20:01-21:00, Thu., 24 Mar. 0.0286 0.0247 0.0269
19:01-20:00, Thu., 24 Mar. 0.0290 0.0247 0.0270
18:01-19:00, Thu., 24 Mar. 0.0287 0.0252 0.0271
17:01-18:00, Thu., 24 Mar. 0.0290 0.0253 0.0271
16:01-17:00, Thu., 24 Mar. 0.0285 0.0246 0.0269
15:01-16:00, Thu., 24 Mar. 0.0289 0.0250 0.0270
14:01-15:00, Thu., 24 Mar. 0.0292 0.0251 0.0270
13:01-14:00, Thu., 24 Mar. 0.0290 0.0256 0.0274
12:01-13:00, Thu., 24 Mar. 0.0294 0.0252 0.0274
11:01-12:00, Thu., 24 Mar. 0.0294 0.0257 0.0274
10:01-11:00, Thu., 24 Mar. 0.0296 0.0263 0.0277
09:01-10:00, Thu., 24 Mar. 0.0296 0.0258 0.0278
08:01-09:00, Thu., 24 Mar. 0.0302 0.0256 0.0276
07:01-08:00, Thu., 24 Mar. 0.0296 0.0251 0.0270
06:01-07:00, Thu., 24 Mar. 0.0298 0.0250 0.0272
05:01-06:00, Thu., 24 Mar. 0.0288 0.0252 0.0268
04:01-05:00, Thu., 24 Mar. 0.0293 0.0250 0.0269
03:01-04:00, Thu., 24 Mar. 0.0297 0.0256 0.0275
02:01-03:00, Thu., 24 Mar. 0.0329 0.0270 0.0295
01:01-02:00, Thu., 24 Mar. 0.0343 0.0303 0.0324
00:01-01:00, Thu., 24 Mar. 0.0353 0.0302 0.0323
23:01-24:00, Wed., 23 Mar. 0.0334 0.0266 0.0296
22:01-23:00, Wed., 23 Mar. 0.0340 0.0277 0.0301
21:01-22:00, Wed., 23 Mar. 0.0353 0.0306 0.0326
20:01-21:00, Wed., 23 Mar. 0.0327 0.0252 0.0286
19:01-20:00, Wed., 23 Mar. 0.0292 0.0252 0.0270
18:01-19:00, Wed., 23 Mar. 0.0286 0.0249 0.0269
17:01-18:00, Wed., 23 Mar. 0.0289 0.0253 0.0270
16:01-17:00, Wed., 23 Mar. 0.0287 0.0250 0.0269
15:01-16:00, Wed., 23 Mar. 0.0297 0.0255 0.0273
14:01-15:00, Wed., 23 Mar. 0.0283 0.0250 0.0270
13:01-14:00, Wed., 23 Mar. 0.0293 0.0258 0.0273
12:01-13:00, Wed., 23 Mar. 0.0289 0.0260 0.0274
11:01-12:00, Wed., 23 Mar. 0.0293 0.0254 0.0273
10:01-11:00, Wed., 23 Mar. 0.0291 0.0253 0.0274
09:01-10:00, Wed., 23 Mar. 0.0295 0.0258 0.0276
08:01-09:00, Wed., 23 Mar. 0.0300 0.0254 0.0280
07:01-08:00, Wed., 23 Mar. 0.0303 0.0258 0.0282
06:01-07:00, Wed., 23 Mar. 0.0293 0.0251 0.0277
05:01-06:00, Wed., 23 Mar. 0.0292 0.0262 0.0274
04:01-05:00, Wed., 23 Mar. 0.0289 0.0256 0.0273
03:01-04:00, Wed., 23 Mar. 0.0295 0.0257 0.0273
02:01-03:00, Wed., 23 Mar. 0.0291 0.0253 0.0270
01:01-02:00, Wed., 23 Mar. 0.0289 0.0246 0.0272
00:01-01:00, Wed., 23 Mar. 0.0284 0.0252 0.0268
23:01-24:00, Tue., 22 Mar. 0.0285 0.0253 0.0268
22:01-23:00, Tue., 22 Mar. 0.0297 0.0251 0.0271
21:01-22:00, Tue., 22 Mar. 0.0285 0.0247 0.0267
20:01-21:00, Tue., 22 Mar. 0.0291 0.0246 0.0269
19:01-20:00, Tue., 22 Mar. 0.0297 0.0255 0.0274
18:01-19:00, Tue., 22 Mar. 0.0309 0.0263 0.0282
17:01-18:00, Tue., 22 Mar. 0.0340 0.0282 0.0307
16:01-17:00, Tue., 22 Mar. 0.0354 0.0304 0.0327
15:01-16:00, Tue., 22 Mar. 0.0403 0.0329 0.0362
14:01-15:00, Tue., 22 Mar. 0.0434 0.0363 0.0400
13:01-14:00, Tue., 22 Mar. 0.0478 0.0389 0.0431
12:01-13:00, Tue., 22 Mar. 0.0495 0.0406 0.0460
11:01-12:00, Tue., 22 Mar. 0.0492 0.0420 0.0461
10:01-11:00, Tue., 22 Mar. 0.0461 0.0380 0.0415
09:01-10:00, Tue., 22 Mar. 0.0446 0.0381 0.0408
08:01-09:00, Tue., 22 Mar. 0.0447 0.0375 0.0413
07:01-08:00, Tue., 22 Mar. 0.0443 0.0290 0.0367
06:01-07:00, Tue., 22 Mar. 0.0330 0.0284 0.0305
05:01-06:00, Tue., 22 Mar. 0.0396 0.0315 0.0347
04:01-05:00, Tue., 22 Mar. 0.0418 0.0349 0.0375
03:01-04:00, Tue., 22 Mar. 0.0373 0.0279 0.0339
02:01-03:00, Tue., 22 Mar. 0.0295 0.0254 0.0273
01:01-02:00, Tue., 22 Mar. 0.0290 0.0253 0.0270
00:01-01:00, Tue., 22 Mar. 0.0290 0.0248 0.0271
23:01-24:00, Mon., 21 Mar. 0.0285 0.0252 0.0268
22:01-23:00, Mon., 21 Mar. 0.0284 0.0246 0.0268
21:01-22:00, Mon., 21 Mar. 0.0284 0.0245 0.0268
20:01-21:00, Mon., 21 Mar. 0.0289 0.0251 0.0266
19:01-20:00, Mon., 21 Mar. 0.0288 0.0248 0.0267
18:01-19:00, Mon., 21 Mar. 0.0291 0.0247 0.0269
17:01-18:00, Mon., 21 Mar. 0.0289 0.0243 0.0266
16:01-17:00, Mon., 21 Mar. 0.0282 0.0245 0.0264
15:01-16:00, Mon., 21 Mar. 0.0283 0.0251 0.0268
14:01-15:00, Mon., 21 Mar. 0.0293 0.0255 0.0270
13:01-14:00, Mon., 21 Mar. 0.0284 0.0250 0.0269
12:01-13:00, Mon., 21 Mar. 0.0293 0.0253 0.0269
11:01-12:00, Mon., 21 Mar. 0.0294 0.0250 0.0270
10:01-11:00, Mon., 21 Mar. 0.0287 0.0247 0.0269
09:01-10:00, Mon., 21 Mar. 0.0285 0.0255 0.0270
08:01-09:00, Mon., 21 Mar. 0.0293 0.0252 0.0271
07:01-08:00, Mon., 21 Mar. 0.0284 0.0247 0.0266
06:01-07:00, Mon., 21 Mar. 0.0284 0.0243 0.0265
05:01-06:00, Mon., 21 Mar. 0.0287 0.0246 0.0266
04:01-05:00, Mon., 21 Mar. 0.0281 0.0248 0.0267
03:01-04:00, Mon., 21 Mar. 0.0288 0.0254 0.0268
02:01-03:00, Mon., 21 Mar. 0.0279 0.0241 0.0266
01:01-02:00, Mon., 21 Mar. 0.0281 0.0244 0.0264
00:01-01:00, Mon., 21 Mar. 0.0284 0.0239 0.0267