Measurement results by the hour (Chofu) 10 Mar., 2025 - 16 Mar., 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., 16 Mar. 0.0391 0.0308 0.0345
22:01-23:00, Sun., 16 Mar. 0.0394 0.0322 0.0362
21:01-22:00, Sun., 16 Mar. 0.0440 0.0355 0.0395
20:01-21:00, Sun., 16 Mar. 0.0418 0.0363 0.0394
19:01-20:00, Sun., 16 Mar. 0.0429 0.0369 0.0398
18:01-19:00, Sun., 16 Mar. 0.0429 0.0349 0.0386
17:01-18:00, Sun., 16 Mar. 0.0419 0.0306 0.0350
16:01-17:00, Sun., 16 Mar. 0.0353 0.0297 0.0322
15:01-16:00, Sun., 16 Mar. 0.0399 0.0325 0.0356
14:01-15:00, Sun., 16 Mar. 0.0417 0.0363 0.0389
13:01-14:00, Sun., 16 Mar. 0.0463 0.0392 0.0427
12:01-13:00, Sun., 16 Mar. 0.0468 0.0393 0.0428
11:01-12:00, Sun., 16 Mar. 0.0450 0.0363 0.0404
10:01-11:00, Sun., 16 Mar. 0.0453 0.0390 0.0423
09:01-10:00, Sun., 16 Mar. 0.0488 0.0410 0.0443
08:01-09:00, Sun., 16 Mar. 0.0508 0.0432 0.0477
07:01-08:00, Sun., 16 Mar. 0.0455 0.0379 0.0408
06:01-07:00, Sun., 16 Mar. 0.0407 0.0349 0.0372
05:01-06:00, Sun., 16 Mar. 0.0401 0.0356 0.0375
04:01-05:00, Sun., 16 Mar. 0.0403 0.0325 0.0365
03:01-04:00, Sun., 16 Mar. 0.0356 0.0290 0.0314
02:01-03:00, Sun., 16 Mar. 0.0325 0.0280 0.0305
01:01-02:00, Sun., 16 Mar. 0.0310 0.0252 0.0277
00:01-01:00, Sun., 16 Mar. 0.0304 0.0259 0.0283
23:01-24:00, Sat., 15 Mar. 0.0304 0.0254 0.0277
22:01-23:00, Sat., 15 Mar. 0.0301 0.0256 0.0279
21:01-22:00, Sat., 15 Mar. 0.0313 0.0266 0.0290
20:01-21:00, Sat., 15 Mar. 0.0307 0.0260 0.0288
19:01-20:00, Sat., 15 Mar. 0.0288 0.0257 0.0275
18:01-19:00, Sat., 15 Mar. 0.0298 0.0259 0.0280
17:01-18:00, Sat., 15 Mar. 0.0343 0.0271 0.0302
16:01-17:00, Sat., 15 Mar. 0.0348 0.0302 0.0323
15:01-16:00, Sat., 15 Mar. 0.0337 0.0262 0.0302
14:01-15:00, Sat., 15 Mar. 0.0289 0.0247 0.0268
13:01-14:00, Sat., 15 Mar. 0.0290 0.0247 0.0269
12:01-13:00, Sat., 15 Mar. 0.0281 0.0242 0.0266
11:01-12:00, Sat., 15 Mar. 0.0290 0.0249 0.0268
10:01-11:00, Sat., 15 Mar. 0.0285 0.0240 0.0267
09:01-10:00, Sat., 15 Mar. 0.0288 0.0251 0.0268
08:01-09:00, Sat., 15 Mar. 0.0297 0.0249 0.0268
07:01-08:00, Sat., 15 Mar. 0.0288 0.0249 0.0267
06:01-07:00, Sat., 15 Mar. 0.0292 0.0251 0.0268
05:01-06:00, Sat., 15 Mar. 0.0287 0.0249 0.0267
04:01-05:00, Sat., 15 Mar. 0.0289 0.0250 0.0267
03:01-04:00, Sat., 15 Mar. 0.0294 0.0242 0.0268
02:01-03:00, Sat., 15 Mar. 0.0288 0.0251 0.0270
01:01-02:00, Sat., 15 Mar. 0.0285 0.0254 0.0267
00:01-01:00, Sat., 15 Mar. 0.0287 0.0246 0.0269
23:01-24:00, Fri., 14 Mar. 0.0285 0.0248 0.0268
22:01-23:00, Fri., 14 Mar. 0.0294 0.0249 0.0267
21:01-22:00, Fri., 14 Mar. 0.0284 0.0244 0.0267
20:01-21:00, Fri., 14 Mar. 0.0295 0.0244 0.0266
19:01-20:00, Fri., 14 Mar. 0.0294 0.0252 0.0270
18:01-19:00, Fri., 14 Mar. 0.0283 0.0252 0.0266
17:01-18:00, Fri., 14 Mar. 0.0287 0.0249 0.0269
16:01-17:00, Fri., 14 Mar. 0.0293 0.0241 0.0269
15:01-16:00, Fri., 14 Mar. 0.0291 0.0249 0.0270
14:01-15:00, Fri., 14 Mar. 0.0297 0.0239 0.0270
13:01-14:00, Fri., 14 Mar. 0.0286 0.0250 0.0269
12:01-13:00, Fri., 14 Mar. 0.0297 0.0244 0.0269
11:01-12:00, Fri., 14 Mar. 0.0294 0.0250 0.0271
10:01-11:00, Fri., 14 Mar. 0.0289 0.0252 0.0269
09:01-10:00, Fri., 14 Mar. 0.0296 0.0251 0.0272
08:01-09:00, Fri., 14 Mar. 0.0287 0.0251 0.0269
07:01-08:00, Fri., 14 Mar. 0.0294 0.0245 0.0270
06:01-07:00, Fri., 14 Mar. 0.0287 0.0244 0.0270
05:01-06:00, Fri., 14 Mar. 0.0283 0.0248 0.0268
04:01-05:00, Fri., 14 Mar. 0.0287 0.0241 0.0269
03:01-04:00, Fri., 14 Mar. 0.0292 0.0245 0.0269
02:01-03:00, Fri., 14 Mar. 0.0297 0.0254 0.0270
01:01-02:00, Fri., 14 Mar. 0.0289 0.0250 0.0270
00:01-01:00, Fri., 14 Mar. 0.0294 0.0246 0.0268
23:01-24:00, Thu., 13 Mar. 0.0282 0.0252 0.0267
22:01-23:00, Thu., 13 Mar. 0.0285 0.0244 0.0267
21:01-22:00, Thu., 13 Mar. 0.0286 0.0246 0.0267
20:01-21:00, Thu., 13 Mar. 0.0284 0.0249 0.0267
19:01-20:00, Thu., 13 Mar. 0.0289 0.0246 0.0268
18:01-19:00, Thu., 13 Mar. 0.0285 0.0255 0.0269
17:01-18:00, Thu., 13 Mar. 0.0290 0.0250 0.0268
16:01-17:00, Thu., 13 Mar. 0.0287 0.0244 0.0267
15:01-16:00, Thu., 13 Mar. 0.0297 0.0251 0.0271
14:01-15:00, Thu., 13 Mar. 0.0296 0.0251 0.0274
13:01-14:00, Thu., 13 Mar. 0.0297 0.0246 0.0270
12:01-13:00, Thu., 13 Mar. 0.0295 0.0250 0.0269
11:01-12:00, Thu., 13 Mar. 0.0294 0.0238 0.0270
10:01-11:00, Thu., 13 Mar. 0.0287 0.0256 0.0271
09:01-10:00, Thu., 13 Mar. 0.0304 0.0240 0.0272
08:01-09:00, Thu., 13 Mar. 0.0298 0.0250 0.0278
07:01-08:00, Thu., 13 Mar. 0.0297 0.0265 0.0282
06:01-07:00, Thu., 13 Mar. 0.0308 0.0259 0.0282
05:01-06:00, Thu., 13 Mar. 0.0301 0.0250 0.0277
04:01-05:00, Thu., 13 Mar. 0.0293 0.0254 0.0276
03:01-04:00, Thu., 13 Mar. 0.0295 0.0249 0.0274
02:01-03:00, Thu., 13 Mar. 0.0287 0.0252 0.0272
01:01-02:00, Thu., 13 Mar. 0.0298 0.0249 0.0271
00:01-01:00, Thu., 13 Mar. 0.0287 0.0248 0.0270
23:01-24:00, Wed., 12 Mar. 0.0296 0.0249 0.0271
22:01-23:00, Wed., 12 Mar. 0.0294 0.0250 0.0272
21:01-22:00, Wed., 12 Mar. 0.0324 0.0266 0.0283
20:01-21:00, Wed., 12 Mar. 0.0336 0.0278 0.0308
19:01-20:00, Wed., 12 Mar. 0.0401 0.0306 0.0353
18:01-19:00, Wed., 12 Mar. 0.0394 0.0336 0.0370
17:01-18:00, Wed., 12 Mar. 0.0377 0.0330 0.0351
16:01-17:00, Wed., 12 Mar. 0.0387 0.0337 0.0363
15:01-16:00, Wed., 12 Mar. 0.0375 0.0320 0.0344
14:01-15:00, Wed., 12 Mar. 0.0343 0.0275 0.0303
13:01-14:00, Wed., 12 Mar. 0.0301 0.0259 0.0278
12:01-13:00, Wed., 12 Mar. 0.0289 0.0255 0.0272
11:01-12:00, Wed., 12 Mar. 0.0306 0.0256 0.0277
10:01-11:00, Wed., 12 Mar. 0.0304 0.0263 0.0281
09:01-10:00, Wed., 12 Mar. 0.0306 0.0266 0.0283
08:01-09:00, Wed., 12 Mar. 0.0308 0.0263 0.0283
07:01-08:00, Wed., 12 Mar. 0.0307 0.0252 0.0279
06:01-07:00, Wed., 12 Mar. 0.0292 0.0255 0.0275
05:01-06:00, Wed., 12 Mar. 0.0297 0.0251 0.0276
04:01-05:00, Wed., 12 Mar. 0.0297 0.0259 0.0275
03:01-04:00, Wed., 12 Mar. 0.0317 0.0263 0.0288
02:01-03:00, Wed., 12 Mar. 0.0335 0.0280 0.0305
01:01-02:00, Wed., 12 Mar. 0.0322 0.0270 0.0294
00:01-01:00, Wed., 12 Mar. 0.0296 0.0231 0.0271
23:01-24:00, Tue., 11 Mar. 0.0288 0.0249 0.0267
22:01-23:00, Tue., 11 Mar. 0.0287 0.0250 0.0270
21:01-22:00, Tue., 11 Mar. 0.0301 0.0252 0.0273
20:01-21:00, Tue., 11 Mar. 0.0300 0.0257 0.0278
19:01-20:00, Tue., 11 Mar. 0.0325 0.0270 0.0293
18:01-19:00, Tue., 11 Mar. 0.0297 0.0257 0.0276
17:01-18:00, Tue., 11 Mar. 0.0297 0.0249 0.0274
16:01-17:00, Tue., 11 Mar. 0.0294 0.0236 0.0272
15:01-16:00, Tue., 11 Mar. 0.0285 0.0252 0.0268
14:01-15:00, Tue., 11 Mar. 0.0295 0.0245 0.0267
13:01-14:00, Tue., 11 Mar. 0.0288 0.0224 0.0265
12:01-13:00, Tue., 11 Mar. 0.0290 0.0244 0.0269
11:01-12:00, Tue., 11 Mar. 0.0297 0.0243 0.0267
10:01-11:00, Tue., 11 Mar. 0.0290 0.0249 0.0269
09:01-10:00, Tue., 11 Mar. 0.0289 0.0250 0.0269
08:01-09:00, Tue., 11 Mar. 0.0298 0.0256 0.0271
07:01-08:00, Tue., 11 Mar. 0.0294 0.0252 0.0272
06:01-07:00, Tue., 11 Mar. 0.0292 0.0247 0.0271
05:01-06:00, Tue., 11 Mar. 0.0290 0.0242 0.0270
04:01-05:00, Tue., 11 Mar. 0.0290 0.0251 0.0270
03:01-04:00, Tue., 11 Mar. 0.0292 0.0245 0.0269
02:01-03:00, Tue., 11 Mar. 0.0290 0.0244 0.0269
01:01-02:00, Tue., 11 Mar. 0.0283 0.0250 0.0267
00:01-01:00, Tue., 11 Mar. 0.0286 0.0249 0.0266
23:01-24:00, Mon., 10 Mar. 0.0290 0.0239 0.0266
22:01-23:00, Mon., 10 Mar. 0.0283 0.0247 0.0266
21:01-22:00, Mon., 10 Mar. 0.0287 0.0245 0.0264
20:01-21:00, Mon., 10 Mar. 0.0291 0.0245 0.0264
19:01-20:00, Mon., 10 Mar. 0.0280 0.0236 0.0261
18:01-19:00, Mon., 10 Mar. 0.0280 0.0242 0.0263
17:01-18:00, Mon., 10 Mar. 0.0284 0.0241 0.0265
16:01-17:00, Mon., 10 Mar. 0.0288 0.0246 0.0268
15:01-16:00, Mon., 10 Mar. 0.0291 0.0254 0.0269
14:01-15:00, Mon., 10 Mar. 0.0301 0.0250 0.0270
13:01-14:00, Mon., 10 Mar. 0.0294 0.0242 0.0269
12:01-13:00, Mon., 10 Mar. 0.0301 0.0243 0.0271
11:01-12:00, Mon., 10 Mar. 0.0288 0.0251 0.0270
10:01-11:00, Mon., 10 Mar. 0.0290 0.0250 0.0269
09:01-10:00, Mon., 10 Mar. 0.0290 0.0248 0.0269
08:01-09:00, Mon., 10 Mar. 0.0287 0.0246 0.0270
07:01-08:00, Mon., 10 Mar. 0.0295 0.0242 0.0274
06:01-07:00, Mon., 10 Mar. 0.0292 0.0245 0.0271
05:01-06:00, Mon., 10 Mar. 0.0299 0.0251 0.0276
04:01-05:00, Mon., 10 Mar. 0.0298 0.0255 0.0278
03:01-04:00, Mon., 10 Mar. 0.0294 0.0258 0.0274
02:01-03:00, Mon., 10 Mar. 0.0294 0.0251 0.0272
01:01-02:00, Mon., 10 Mar. 0.0287 0.0242 0.0266
00:01-01:00, Mon., 10 Mar. 0.0287 0.0248 0.0264