Measurement results by the hour (Chofu) 15 Jan., 2024 - 21 Jan., 2024

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., 21 Jan. 0.0298 0.0262 0.0279
22:01-23:00, Sun., 21 Jan. 0.0315 0.0255 0.0280
21:01-22:00, Sun., 21 Jan. 0.0301 0.0263 0.0281
20:01-21:00, Sun., 21 Jan. 0.0309 0.0256 0.0279
19:01-20:00, Sun., 21 Jan. 0.0301 0.0257 0.0278
18:01-19:00, Sun., 21 Jan. 0.0306 0.0254 0.0277
17:01-18:00, Sun., 21 Jan. 0.0306 0.0259 0.0281
16:01-17:00, Sun., 21 Jan. 0.0306 0.0258 0.0279
15:01-16:00, Sun., 21 Jan. 0.0307 0.0262 0.0285
14:01-15:00, Sun., 21 Jan. 0.0315 0.0275 0.0298
13:01-14:00, Sun., 21 Jan. 0.0339 0.0280 0.0304
12:01-13:00, Sun., 21 Jan. 0.0372 0.0308 0.0339
11:01-12:00, Sun., 21 Jan. 0.0385 0.0335 0.0360
10:01-11:00, Sun., 21 Jan. 0.0454 0.0355 0.0399
09:01-10:00, Sun., 21 Jan. 0.0520 0.0439 0.0476
08:01-09:00, Sun., 21 Jan. 0.0566 0.0491 0.0520
07:01-08:00, Sun., 21 Jan. 0.0541 0.0461 0.0493
06:01-07:00, Sun., 21 Jan. 0.0513 0.0454 0.0490
05:01-06:00, Sun., 21 Jan. 0.0513 0.0457 0.0487
04:01-05:00, Sun., 21 Jan. 0.0499 0.0426 0.0462
03:01-04:00, Sun., 21 Jan. 0.0468 0.0416 0.0444
02:01-03:00, Sun., 21 Jan. 0.0465 0.0410 0.0433
01:01-02:00, Sun., 21 Jan. 0.0463 0.0416 0.0441
00:01-01:00, Sun., 21 Jan. 0.0460 0.0403 0.0432
23:01-24:00, Sat., 20 Jan. 0.0478 0.0408 0.0450
22:01-23:00, Sat., 20 Jan. 0.0449 0.0364 0.0405
21:01-22:00, Sat., 20 Jan. 0.0410 0.0343 0.0383
20:01-21:00, Sat., 20 Jan. 0.0375 0.0294 0.0335
19:01-20:00, Sat., 20 Jan. 0.0340 0.0299 0.0321
18:01-19:00, Sat., 20 Jan. 0.0347 0.0283 0.0305
17:01-18:00, Sat., 20 Jan. 0.0320 0.0278 0.0302
16:01-17:00, Sat., 20 Jan. 0.0322 0.0277 0.0301
15:01-16:00, Sat., 20 Jan. 0.0368 0.0304 0.0333
14:01-15:00, Sat., 20 Jan. 0.0392 0.0297 0.0349
13:01-14:00, Sat., 20 Jan. 0.0367 0.0310 0.0338
12:01-13:00, Sat., 20 Jan. 0.0359 0.0313 0.0332
11:01-12:00, Sat., 20 Jan. 0.0350 0.0271 0.0305
10:01-11:00, Sat., 20 Jan. 0.0315 0.0263 0.0290
09:01-10:00, Sat., 20 Jan. 0.0315 0.0265 0.0288
08:01-09:00, Sat., 20 Jan. 0.0318 0.0275 0.0291
07:01-08:00, Sat., 20 Jan. 0.0310 0.0263 0.0288
06:01-07:00, Sat., 20 Jan. 0.0311 0.0262 0.0284
05:01-06:00, Sat., 20 Jan. 0.0304 0.0264 0.0287
04:01-05:00, Sat., 20 Jan. 0.0304 0.0261 0.0283
03:01-04:00, Sat., 20 Jan. 0.0306 0.0266 0.0283
02:01-03:00, Sat., 20 Jan. 0.0303 0.0270 0.0285
01:01-02:00, Sat., 20 Jan. 0.0318 0.0266 0.0285
00:01-01:00, Sat., 20 Jan. 0.0303 0.0264 0.0285
23:01-24:00, Fri., 19 Jan. 0.0304 0.0262 0.0285
22:01-23:00, Fri., 19 Jan. 0.0304 0.0267 0.0285
21:01-22:00, Fri., 19 Jan. 0.0306 0.0256 0.0282
20:01-21:00, Fri., 19 Jan. 0.0303 0.0266 0.0283
19:01-20:00, Fri., 19 Jan. 0.0307 0.0264 0.0283
18:01-19:00, Fri., 19 Jan. 0.0309 0.0265 0.0284
17:01-18:00, Fri., 19 Jan. 0.0304 0.0266 0.0286
16:01-17:00, Fri., 19 Jan. 0.0310 0.0274 0.0288
15:01-16:00, Fri., 19 Jan. 0.0311 0.0274 0.0293
14:01-15:00, Fri., 19 Jan. 0.0318 0.0273 0.0291
13:01-14:00, Fri., 19 Jan. 0.0322 0.0269 0.0293
12:01-13:00, Fri., 19 Jan. 0.0312 0.0270 0.0291
11:01-12:00, Fri., 19 Jan. 0.0312 0.0271 0.0294
10:01-11:00, Fri., 19 Jan. 0.0326 0.0273 0.0293
09:01-10:00, Fri., 19 Jan. 0.0310 0.0273 0.0292
08:01-09:00, Fri., 19 Jan. 0.0312 0.0267 0.0291
07:01-08:00, Fri., 19 Jan. 0.0314 0.0272 0.0291
06:01-07:00, Fri., 19 Jan. 0.0318 0.0273 0.0295
05:01-06:00, Fri., 19 Jan. 0.0317 0.0273 0.0295
04:01-05:00, Fri., 19 Jan. 0.0317 0.0280 0.0298
03:01-04:00, Fri., 19 Jan. 0.0316 0.0280 0.0300
02:01-03:00, Fri., 19 Jan. 0.0329 0.0286 0.0305
01:01-02:00, Fri., 19 Jan. 0.0334 0.0284 0.0300
00:01-01:00, Fri., 19 Jan. 0.0324 0.0270 0.0299
23:01-24:00, Thu., 18 Jan. 0.0315 0.0264 0.0298
22:01-23:00, Thu., 18 Jan. 0.0321 0.0266 0.0294
21:01-22:00, Thu., 18 Jan. 0.0312 0.0265 0.0291
20:01-21:00, Thu., 18 Jan. 0.0310 0.0270 0.0290
19:01-20:00, Thu., 18 Jan. 0.0311 0.0266 0.0286
18:01-19:00, Thu., 18 Jan. 0.0304 0.0262 0.0287
17:01-18:00, Thu., 18 Jan. 0.0305 0.0270 0.0287
16:01-17:00, Thu., 18 Jan. 0.0308 0.0268 0.0289
15:01-16:00, Thu., 18 Jan. 0.0311 0.0274 0.0294
14:01-15:00, Thu., 18 Jan. 0.0313 0.0267 0.0291
13:01-14:00, Thu., 18 Jan. 0.0322 0.0275 0.0295
12:01-13:00, Thu., 18 Jan. 0.0311 0.0271 0.0296
11:01-12:00, Thu., 18 Jan. 0.0321 0.0273 0.0300
10:01-11:00, Thu., 18 Jan. 0.0321 0.0278 0.0298
09:01-10:00, Thu., 18 Jan. 0.0331 0.0283 0.0305
08:01-09:00, Thu., 18 Jan. 0.0332 0.0292 0.0311
07:01-08:00, Thu., 18 Jan. 0.0332 0.0286 0.0310
06:01-07:00, Thu., 18 Jan. 0.0329 0.0281 0.0307
05:01-06:00, Thu., 18 Jan. 0.0338 0.0290 0.0310
04:01-05:00, Thu., 18 Jan. 0.0335 0.0295 0.0312
03:01-04:00, Thu., 18 Jan. 0.0333 0.0290 0.0310
02:01-03:00, Thu., 18 Jan. 0.0339 0.0287 0.0309
01:01-02:00, Thu., 18 Jan. 0.0322 0.0274 0.0297
00:01-01:00, Thu., 18 Jan. 0.0319 0.0273 0.0299
23:01-24:00, Wed., 17 Jan. 0.0327 0.0273 0.0299
22:01-23:00, Wed., 17 Jan. 0.0321 0.0285 0.0300
21:01-22:00, Wed., 17 Jan. 0.0318 0.0281 0.0296
20:01-21:00, Wed., 17 Jan. 0.0313 0.0265 0.0287
19:01-20:00, Wed., 17 Jan. 0.0301 0.0263 0.0280
18:01-19:00, Wed., 17 Jan. 0.0303 0.0263 0.0279
17:01-18:00, Wed., 17 Jan. 0.0300 0.0258 0.0280
16:01-17:00, Wed., 17 Jan. 0.0301 0.0259 0.0280
15:01-16:00, Wed., 17 Jan. 0.0308 0.0262 0.0284
14:01-15:00, Wed., 17 Jan. 0.0310 0.0269 0.0285
13:01-14:00, Wed., 17 Jan. 0.0306 0.0258 0.0285
12:01-13:00, Wed., 17 Jan. 0.0305 0.0266 0.0284
11:01-12:00, Wed., 17 Jan. 0.0301 0.0262 0.0284
10:01-11:00, Wed., 17 Jan. 0.0304 0.0268 0.0286
09:01-10:00, Wed., 17 Jan. 0.0320 0.0270 0.0290
08:01-09:00, Wed., 17 Jan. 0.0314 0.0278 0.0298
07:01-08:00, Wed., 17 Jan. 0.0331 0.0283 0.0305
06:01-07:00, Wed., 17 Jan. 0.0315 0.0280 0.0299
05:01-06:00, Wed., 17 Jan. 0.0319 0.0261 0.0298
04:01-05:00, Wed., 17 Jan. 0.0329 0.0277 0.0297
03:01-04:00, Wed., 17 Jan. 0.0317 0.0273 0.0294
02:01-03:00, Wed., 17 Jan. 0.0311 0.0262 0.0287
01:01-02:00, Wed., 17 Jan. 0.0297 0.0254 0.0281
00:01-01:00, Wed., 17 Jan. 0.0304 0.0262 0.0282
23:01-24:00, Tue., 16 Jan. 0.0298 0.0256 0.0280
22:01-23:00, Tue., 16 Jan. 0.0296 0.0259 0.0279
21:01-22:00, Tue., 16 Jan. 0.0308 0.0259 0.0279
20:01-21:00, Tue., 16 Jan. 0.0303 0.0257 0.0279
19:01-20:00, Tue., 16 Jan. 0.0301 0.0249 0.0278
18:01-19:00, Tue., 16 Jan. 0.0303 0.0262 0.0279
17:01-18:00, Tue., 16 Jan. 0.0304 0.0253 0.0278
16:01-17:00, Tue., 16 Jan. 0.0298 0.0256 0.0279
15:01-16:00, Tue., 16 Jan. 0.0298 0.0259 0.0278
14:01-15:00, Tue., 16 Jan. 0.0297 0.0262 0.0279
13:01-14:00, Tue., 16 Jan. 0.0303 0.0265 0.0279
12:01-13:00, Tue., 16 Jan. 0.0297 0.0264 0.0279
11:01-12:00, Tue., 16 Jan. 0.0305 0.0262 0.0282
10:01-11:00, Tue., 16 Jan. 0.0300 0.0262 0.0280
09:01-10:00, Tue., 16 Jan. 0.0310 0.0269 0.0283
08:01-09:00, Tue., 16 Jan. 0.0301 0.0263 0.0284
07:01-08:00, Tue., 16 Jan. 0.0303 0.0262 0.0285
06:01-07:00, Tue., 16 Jan. 0.0307 0.0259 0.0285
05:01-06:00, Tue., 16 Jan. 0.0307 0.0264 0.0285
04:01-05:00, Tue., 16 Jan. 0.0302 0.0266 0.0284
03:01-04:00, Tue., 16 Jan. 0.0311 0.0261 0.0284
02:01-03:00, Tue., 16 Jan. 0.0304 0.0264 0.0283
01:01-02:00, Tue., 16 Jan. 0.0309 0.0265 0.0286
00:01-01:00, Tue., 16 Jan. 0.0311 0.0266 0.0286
23:01-24:00, Mon., 15 Jan. 0.0314 0.0263 0.0287
22:01-23:00, Mon., 15 Jan. 0.0304 0.0252 0.0284
21:01-22:00, Mon., 15 Jan. 0.0311 0.0256 0.0285
20:01-21:00, Mon., 15 Jan. 0.0309 0.0267 0.0283
19:01-20:00, Mon., 15 Jan. 0.0308 0.0266 0.0283
18:01-19:00, Mon., 15 Jan. 0.0305 0.0262 0.0285
17:01-18:00, Mon., 15 Jan. 0.0310 0.0263 0.0285
16:01-17:00, Mon., 15 Jan. 0.0315 0.0262 0.0286
15:01-16:00, Mon., 15 Jan. 0.0308 0.0257 0.0285
14:01-15:00, Mon., 15 Jan. 0.0308 0.0270 0.0289
13:01-14:00, Mon., 15 Jan. 0.0318 0.0264 0.0292
12:01-13:00, Mon., 15 Jan. 0.0319 0.0275 0.0294
11:01-12:00, Mon., 15 Jan. 0.0319 0.0279 0.0295
10:01-11:00, Mon., 15 Jan. 0.0315 0.0279 0.0296
09:01-10:00, Mon., 15 Jan. 0.0315 0.0273 0.0290
08:01-09:00, Mon., 15 Jan. 0.0329 0.0275 0.0298
07:01-08:00, Mon., 15 Jan. 0.0325 0.0283 0.0304
06:01-07:00, Mon., 15 Jan. 0.0322 0.0272 0.0304
05:01-06:00, Mon., 15 Jan. 0.0331 0.0282 0.0308
04:01-05:00, Mon., 15 Jan. 0.0328 0.0282 0.0307
03:01-04:00, Mon., 15 Jan. 0.0329 0.0290 0.0309
02:01-03:00, Mon., 15 Jan. 0.0332 0.0280 0.0308
01:01-02:00, Mon., 15 Jan. 0.0322 0.0279 0.0304
00:01-01:00, Mon., 15 Jan. 0.0322 0.0280 0.0301