Measurement results by the hour (Chofu) 20 Mar., 2023 - 26 Mar., 2023

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., 26 Mar. 0.0298 0.0254 0.0280
22:01-23:00, Sun., 26 Mar. 0.0309 0.0258 0.0283
21:01-22:00, Sun., 26 Mar. 0.0322 0.0273 0.0297
20:01-21:00, Sun., 26 Mar. 0.0295 0.0260 0.0276
19:01-20:00, Sun., 26 Mar. 0.0301 0.0262 0.0280
18:01-19:00, Sun., 26 Mar. 0.0318 0.0264 0.0295
17:01-18:00, Sun., 26 Mar. 0.0349 0.0273 0.0316
16:01-17:00, Sun., 26 Mar. 0.0430 0.0332 0.0370
15:01-16:00, Sun., 26 Mar. 0.0472 0.0373 0.0426
14:01-15:00, Sun., 26 Mar. 0.0517 0.0446 0.0479
13:01-14:00, Sun., 26 Mar. 0.0503 0.0439 0.0465
12:01-13:00, Sun., 26 Mar. 0.0489 0.0427 0.0453
11:01-12:00, Sun., 26 Mar. 0.0471 0.0372 0.0433
10:01-11:00, Sun., 26 Mar. 0.0402 0.0333 0.0370
09:01-10:00, Sun., 26 Mar. 0.0377 0.0333 0.0356
08:01-09:00, Sun., 26 Mar. 0.0378 0.0332 0.0356
07:01-08:00, Sun., 26 Mar. 0.0373 0.0334 0.0355
06:01-07:00, Sun., 26 Mar. 0.0370 0.0310 0.0342
05:01-06:00, Sun., 26 Mar. 0.0359 0.0294 0.0335
04:01-05:00, Sun., 26 Mar. 0.0336 0.0286 0.0310
03:01-04:00, Sun., 26 Mar. 0.0322 0.0273 0.0298
02:01-03:00, Sun., 26 Mar. 0.0335 0.0287 0.0312
01:01-02:00, Sun., 26 Mar. 0.0347 0.0298 0.0319
00:01-01:00, Sun., 26 Mar. 0.0349 0.0314 0.0330
23:01-24:00, Sat., 25 Mar. 0.0349 0.0272 0.0313
22:01-23:00, Sat., 25 Mar. 0.0310 0.0269 0.0286
21:01-22:00, Sat., 25 Mar. 0.0302 0.0263 0.0283
20:01-21:00, Sat., 25 Mar. 0.0299 0.0259 0.0278
19:01-20:00, Sat., 25 Mar. 0.0290 0.0256 0.0273
18:01-19:00, Sat., 25 Mar. 0.0302 0.0262 0.0280
17:01-18:00, Sat., 25 Mar. 0.0304 0.0262 0.0281
16:01-17:00, Sat., 25 Mar. 0.0301 0.0261 0.0276
15:01-16:00, Sat., 25 Mar. 0.0315 0.0262 0.0292
14:01-15:00, Sat., 25 Mar. 0.0348 0.0294 0.0324
13:01-14:00, Sat., 25 Mar. 0.0415 0.0329 0.0367
12:01-13:00, Sat., 25 Mar. 0.0489 0.0403 0.0445
11:01-12:00, Sat., 25 Mar. 0.0486 0.0437 0.0462
10:01-11:00, Sat., 25 Mar. 0.0478 0.0424 0.0449
09:01-10:00, Sat., 25 Mar. 0.0464 0.0412 0.0439
08:01-09:00, Sat., 25 Mar. 0.0449 0.0399 0.0426
07:01-08:00, Sat., 25 Mar. 0.0433 0.0366 0.0408
06:01-07:00, Sat., 25 Mar. 0.0450 0.0373 0.0409
05:01-06:00, Sat., 25 Mar. 0.0457 0.0388 0.0419
04:01-05:00, Sat., 25 Mar. 0.0416 0.0333 0.0366
03:01-04:00, Sat., 25 Mar. 0.0410 0.0351 0.0381
02:01-03:00, Sat., 25 Mar. 0.0405 0.0310 0.0358
01:01-02:00, Sat., 25 Mar. 0.0426 0.0331 0.0378
00:01-01:00, Sat., 25 Mar. 0.0436 0.0391 0.0417
23:01-24:00, Fri., 24 Mar. 0.0459 0.0388 0.0422
22:01-23:00, Fri., 24 Mar. 0.0456 0.0383 0.0428
21:01-22:00, Fri., 24 Mar. 0.0476 0.0378 0.0437
20:01-21:00, Fri., 24 Mar. 0.0477 0.0337 0.0402
19:01-20:00, Fri., 24 Mar. 0.0359 0.0297 0.0338
18:01-19:00, Fri., 24 Mar. 0.0369 0.0285 0.0317
17:01-18:00, Fri., 24 Mar. 0.0467 0.0343 0.0393
16:01-17:00, Fri., 24 Mar. 0.0535 0.0421 0.0495
15:01-16:00, Fri., 24 Mar. 0.0554 0.0371 0.0465
14:01-15:00, Fri., 24 Mar. 0.0376 0.0263 0.0293
13:01-14:00, Fri., 24 Mar. 0.0294 0.0262 0.0278
12:01-13:00, Fri., 24 Mar. 0.0315 0.0252 0.0280
11:01-12:00, Fri., 24 Mar. 0.0299 0.0256 0.0279
10:01-11:00, Fri., 24 Mar. 0.0303 0.0261 0.0279
09:01-10:00, Fri., 24 Mar. 0.0307 0.0257 0.0282
08:01-09:00, Fri., 24 Mar. 0.0303 0.0262 0.0284
07:01-08:00, Fri., 24 Mar. 0.0307 0.0254 0.0283
06:01-07:00, Fri., 24 Mar. 0.0319 0.0261 0.0282
05:01-06:00, Fri., 24 Mar. 0.0301 0.0258 0.0281
04:01-05:00, Fri., 24 Mar. 0.0304 0.0260 0.0283
03:01-04:00, Fri., 24 Mar. 0.0295 0.0262 0.0278
02:01-03:00, Fri., 24 Mar. 0.0297 0.0252 0.0278
01:01-02:00, Fri., 24 Mar. 0.0301 0.0261 0.0280
00:01-01:00, Fri., 24 Mar. 0.0301 0.0262 0.0284
23:01-24:00, Thu., 23 Mar. 0.0318 0.0263 0.0293
22:01-23:00, Thu., 23 Mar. 0.0339 0.0291 0.0314
21:01-22:00, Thu., 23 Mar. 0.0335 0.0273 0.0306
20:01-21:00, Thu., 23 Mar. 0.0367 0.0273 0.0321
19:01-20:00, Thu., 23 Mar. 0.0377 0.0331 0.0355
18:01-19:00, Thu., 23 Mar. 0.0376 0.0310 0.0342
17:01-18:00, Thu., 23 Mar. 0.0366 0.0312 0.0342
16:01-17:00, Thu., 23 Mar. 0.0323 0.0270 0.0292
15:01-16:00, Thu., 23 Mar. 0.0325 0.0267 0.0296
14:01-15:00, Thu., 23 Mar. 0.0371 0.0301 0.0338
13:01-14:00, Thu., 23 Mar. 0.0388 0.0339 0.0367
12:01-13:00, Thu., 23 Mar. 0.0395 0.0328 0.0361
11:01-12:00, Thu., 23 Mar. 0.0371 0.0323 0.0349
10:01-11:00, Thu., 23 Mar. 0.0375 0.0310 0.0350
09:01-10:00, Thu., 23 Mar. 0.0361 0.0288 0.0324
08:01-09:00, Thu., 23 Mar. 0.0311 0.0263 0.0287
07:01-08:00, Thu., 23 Mar. 0.0304 0.0256 0.0278
06:01-07:00, Thu., 23 Mar. 0.0299 0.0263 0.0279
05:01-06:00, Thu., 23 Mar. 0.0298 0.0256 0.0279
04:01-05:00, Thu., 23 Mar. 0.0296 0.0258 0.0279
03:01-04:00, Thu., 23 Mar. 0.0302 0.0260 0.0280
02:01-03:00, Thu., 23 Mar. 0.0304 0.0261 0.0281
01:01-02:00, Thu., 23 Mar. 0.0308 0.0261 0.0280
00:01-01:00, Thu., 23 Mar. 0.0294 0.0251 0.0275
23:01-24:00, Wed., 22 Mar. 0.0298 0.0247 0.0274
22:01-23:00, Wed., 22 Mar. 0.0298 0.0252 0.0274
21:01-22:00, Wed., 22 Mar. 0.0294 0.0256 0.0275
20:01-21:00, Wed., 22 Mar. 0.0299 0.0246 0.0276
19:01-20:00, Wed., 22 Mar. 0.0290 0.0257 0.0273
18:01-19:00, Wed., 22 Mar. 0.0291 0.0252 0.0274
17:01-18:00, Wed., 22 Mar. 0.0301 0.0259 0.0275
16:01-17:00, Wed., 22 Mar. 0.0287 0.0256 0.0274
15:01-16:00, Wed., 22 Mar. 0.0303 0.0258 0.0280
14:01-15:00, Wed., 22 Mar. 0.0298 0.0259 0.0278
13:01-14:00, Wed., 22 Mar. 0.0303 0.0256 0.0277
12:01-13:00, Wed., 22 Mar. 0.0299 0.0263 0.0278
11:01-12:00, Wed., 22 Mar. 0.0300 0.0262 0.0280
10:01-11:00, Wed., 22 Mar. 0.0314 0.0262 0.0285
09:01-10:00, Wed., 22 Mar. 0.0310 0.0265 0.0285
08:01-09:00, Wed., 22 Mar. 0.0317 0.0267 0.0292
07:01-08:00, Wed., 22 Mar. 0.0308 0.0276 0.0295
06:01-07:00, Wed., 22 Mar. 0.0313 0.0273 0.0294
05:01-06:00, Wed., 22 Mar. 0.0313 0.0275 0.0294
04:01-05:00, Wed., 22 Mar. 0.0308 0.0273 0.0290
03:01-04:00, Wed., 22 Mar. 0.0310 0.0260 0.0290
02:01-03:00, Wed., 22 Mar. 0.0316 0.0267 0.0291
01:01-02:00, Wed., 22 Mar. 0.0310 0.0272 0.0291
00:01-01:00, Wed., 22 Mar. 0.0304 0.0263 0.0287
23:01-24:00, Tue., 21 Mar. 0.0305 0.0263 0.0285
22:01-23:00, Tue., 21 Mar. 0.0295 0.0254 0.0276
21:01-22:00, Tue., 21 Mar. 0.0297 0.0259 0.0275
20:01-21:00, Tue., 21 Mar. 0.0296 0.0249 0.0274
19:01-20:00, Tue., 21 Mar. 0.0295 0.0256 0.0276
18:01-19:00, Tue., 21 Mar. 0.0305 0.0259 0.0275
17:01-18:00, Tue., 21 Mar. 0.0298 0.0252 0.0275
16:01-17:00, Tue., 21 Mar. 0.0297 0.0249 0.0273
15:01-16:00, Tue., 21 Mar. 0.0293 0.0255 0.0273
14:01-15:00, Tue., 21 Mar. 0.0310 0.0257 0.0278
13:01-14:00, Tue., 21 Mar. 0.0299 0.0262 0.0277
12:01-13:00, Tue., 21 Mar. 0.0303 0.0262 0.0281
11:01-12:00, Tue., 21 Mar. 0.0308 0.0261 0.0281
10:01-11:00, Tue., 21 Mar. 0.0310 0.0266 0.0286
09:01-10:00, Tue., 21 Mar. 0.0307 0.0270 0.0288
08:01-09:00, Tue., 21 Mar. 0.0325 0.0273 0.0295
07:01-08:00, Tue., 21 Mar. 0.0321 0.0272 0.0293
06:01-07:00, Tue., 21 Mar. 0.0310 0.0263 0.0290
05:01-06:00, Tue., 21 Mar. 0.0321 0.0267 0.0290
04:01-05:00, Tue., 21 Mar. 0.0311 0.0268 0.0285
03:01-04:00, Tue., 21 Mar. 0.0307 0.0258 0.0279
02:01-03:00, Tue., 21 Mar. 0.0297 0.0256 0.0275
01:01-02:00, Tue., 21 Mar. 0.0303 0.0254 0.0274
00:01-01:00, Tue., 21 Mar. 0.0296 0.0256 0.0275
23:01-24:00, Mon., 20 Mar. 0.0292 0.0259 0.0275
22:01-23:00, Mon., 20 Mar. 0.0301 0.0261 0.0274
21:01-22:00, Mon., 20 Mar. 0.0292 0.0252 0.0275
20:01-21:00, Mon., 20 Mar. 0.0297 0.0259 0.0275
19:01-20:00, Mon., 20 Mar. 0.0301 0.0260 0.0273
18:01-19:00, Mon., 20 Mar. 0.0292 0.0259 0.0274
17:01-18:00, Mon., 20 Mar. 0.0292 0.0254 0.0272
16:01-17:00, Mon., 20 Mar. 0.0304 0.0252 0.0277
15:01-16:00, Mon., 20 Mar. 0.0297 0.0253 0.0277
14:01-15:00, Mon., 20 Mar. 0.0301 0.0259 0.0278
13:01-14:00, Mon., 20 Mar. 0.0298 0.0256 0.0275
12:01-13:00, Mon., 20 Mar. 0.0298 0.0254 0.0277
11:01-12:00, Mon., 20 Mar. 0.0307 0.0250 0.0279
10:01-11:00, Mon., 20 Mar. 0.0310 0.0255 0.0280
09:01-10:00, Mon., 20 Mar. 0.0302 0.0267 0.0283
08:01-09:00, Mon., 20 Mar. 0.0298 0.0259 0.0279
07:01-08:00, Mon., 20 Mar. 0.0316 0.0270 0.0290
06:01-07:00, Mon., 20 Mar. 0.0298 0.0263 0.0284
05:01-06:00, Mon., 20 Mar. 0.0303 0.0267 0.0283
04:01-05:00, Mon., 20 Mar. 0.0301 0.0266 0.0280
03:01-04:00, Mon., 20 Mar. 0.0299 0.0263 0.0280
02:01-03:00, Mon., 20 Mar. 0.0297 0.0261 0.0280
01:01-02:00, Mon., 20 Mar. 0.0308 0.0259 0.0281
00:01-01:00, Mon., 20 Mar. 0.0298 0.0255 0.0275