Measurement results by the hour (Chofu) 10 Apr., 2023 - 16 Apr., 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., 16 Apr. 0.0298 0.0256 0.0279
22:01-23:00, Sun., 16 Apr. 0.0298 0.0249 0.0277
21:01-22:00, Sun., 16 Apr. 0.0297 0.0249 0.0278
20:01-21:00, Sun., 16 Apr. 0.0298 0.0252 0.0278
19:01-20:00, Sun., 16 Apr. 0.0302 0.0261 0.0277
18:01-19:00, Sun., 16 Apr. 0.0296 0.0259 0.0278
17:01-18:00, Sun., 16 Apr. 0.0299 0.0260 0.0279
16:01-17:00, Sun., 16 Apr. 0.0301 0.0260 0.0281
15:01-16:00, Sun., 16 Apr. 0.0303 0.0261 0.0278
14:01-15:00, Sun., 16 Apr. 0.0300 0.0258 0.0279
13:01-14:00, Sun., 16 Apr. 0.0297 0.0259 0.0278
12:01-13:00, Sun., 16 Apr. 0.0298 0.0262 0.0279
11:01-12:00, Sun., 16 Apr. 0.0303 0.0255 0.0277
10:01-11:00, Sun., 16 Apr. 0.0295 0.0255 0.0276
09:01-10:00, Sun., 16 Apr. 0.0292 0.0246 0.0274
08:01-09:00, Sun., 16 Apr. 0.0299 0.0254 0.0274
07:01-08:00, Sun., 16 Apr. 0.0297 0.0258 0.0275
06:01-07:00, Sun., 16 Apr. 0.0299 0.0252 0.0276
05:01-06:00, Sun., 16 Apr. 0.0298 0.0256 0.0275
04:01-05:00, Sun., 16 Apr. 0.0301 0.0256 0.0280
03:01-04:00, Sun., 16 Apr. 0.0346 0.0279 0.0310
02:01-03:00, Sun., 16 Apr. 0.0453 0.0340 0.0394
01:01-02:00, Sun., 16 Apr. 0.0456 0.0367 0.0420
00:01-01:00, Sun., 16 Apr. 0.0403 0.0263 0.0323
23:01-24:00, Sat., 15 Apr. 0.0308 0.0256 0.0279
22:01-23:00, Sat., 15 Apr. 0.0315 0.0263 0.0291
21:01-22:00, Sat., 15 Apr. 0.0292 0.0255 0.0274
20:01-21:00, Sat., 15 Apr. 0.0307 0.0258 0.0286
19:01-20:00, Sat., 15 Apr. 0.0336 0.0277 0.0301
18:01-19:00, Sat., 15 Apr. 0.0360 0.0283 0.0322
17:01-18:00, Sat., 15 Apr. 0.0370 0.0324 0.0348
16:01-17:00, Sat., 15 Apr. 0.0379 0.0332 0.0353
15:01-16:00, Sat., 15 Apr. 0.0384 0.0330 0.0357
14:01-15:00, Sat., 15 Apr. 0.0376 0.0331 0.0352
13:01-14:00, Sat., 15 Apr. 0.0384 0.0336 0.0354
12:01-13:00, Sat., 15 Apr. 0.0375 0.0322 0.0348
11:01-12:00, Sat., 15 Apr. 0.0381 0.0331 0.0356
10:01-11:00, Sat., 15 Apr. 0.0402 0.0355 0.0379
09:01-10:00, Sat., 15 Apr. 0.0400 0.0353 0.0377
08:01-09:00, Sat., 15 Apr. 0.0412 0.0363 0.0385
07:01-08:00, Sat., 15 Apr. 0.0412 0.0359 0.0389
06:01-07:00, Sat., 15 Apr. 0.0419 0.0359 0.0386
05:01-06:00, Sat., 15 Apr. 0.0398 0.0345 0.0375
04:01-05:00, Sat., 15 Apr. 0.0370 0.0304 0.0340
03:01-04:00, Sat., 15 Apr. 0.0342 0.0280 0.0313
02:01-03:00, Sat., 15 Apr. 0.0323 0.0267 0.0289
01:01-02:00, Sat., 15 Apr. 0.0309 0.0262 0.0284
00:01-01:00, Sat., 15 Apr. 0.0315 0.0264 0.0289
23:01-24:00, Fri., 14 Apr. 0.0307 0.0260 0.0285
22:01-23:00, Fri., 14 Apr. 0.0301 0.0265 0.0285
21:01-22:00, Fri., 14 Apr. 0.0305 0.0264 0.0286
20:01-21:00, Fri., 14 Apr. 0.0301 0.0265 0.0282
19:01-20:00, Fri., 14 Apr. 0.0305 0.0266 0.0284
18:01-19:00, Fri., 14 Apr. 0.0303 0.0261 0.0281
17:01-18:00, Fri., 14 Apr. 0.0298 0.0265 0.0282
16:01-17:00, Fri., 14 Apr. 0.0300 0.0262 0.0283
15:01-16:00, Fri., 14 Apr. 0.0313 0.0262 0.0282
14:01-15:00, Fri., 14 Apr. 0.0304 0.0263 0.0283
13:01-14:00, Fri., 14 Apr. 0.0297 0.0270 0.0282
12:01-13:00, Fri., 14 Apr. 0.0307 0.0254 0.0284
11:01-12:00, Fri., 14 Apr. 0.0307 0.0264 0.0285
10:01-11:00, Fri., 14 Apr. 0.0304 0.0264 0.0284
09:01-10:00, Fri., 14 Apr. 0.0302 0.0268 0.0285
08:01-09:00, Fri., 14 Apr. 0.0308 0.0260 0.0287
07:01-08:00, Fri., 14 Apr. 0.0314 0.0277 0.0294
06:01-07:00, Fri., 14 Apr. 0.0316 0.0269 0.0293
05:01-06:00, Fri., 14 Apr. 0.0322 0.0270 0.0288
04:01-05:00, Fri., 14 Apr. 0.0305 0.0257 0.0286
03:01-04:00, Fri., 14 Apr. 0.0301 0.0260 0.0283
02:01-03:00, Fri., 14 Apr. 0.0305 0.0259 0.0283
01:01-02:00, Fri., 14 Apr. 0.0298 0.0263 0.0281
00:01-01:00, Fri., 14 Apr. 0.0307 0.0262 0.0283
23:01-24:00, Thu., 13 Apr. 0.0309 0.0259 0.0282
22:01-23:00, Thu., 13 Apr. 0.0310 0.0256 0.0283
21:01-22:00, Thu., 13 Apr. 0.0299 0.0251 0.0278
20:01-21:00, Thu., 13 Apr. 0.0308 0.0261 0.0282
19:01-20:00, Thu., 13 Apr. 0.0304 0.0260 0.0284
18:01-19:00, Thu., 13 Apr. 0.0299 0.0265 0.0280
17:01-18:00, Thu., 13 Apr. 0.0298 0.0255 0.0280
16:01-17:00, Thu., 13 Apr. 0.0304 0.0262 0.0283
15:01-16:00, Thu., 13 Apr. 0.0301 0.0263 0.0283
14:01-15:00, Thu., 13 Apr. 0.0310 0.0264 0.0284
13:01-14:00, Thu., 13 Apr. 0.0303 0.0267 0.0286
12:01-13:00, Thu., 13 Apr. 0.0304 0.0259 0.0282
11:01-12:00, Thu., 13 Apr. 0.0301 0.0262 0.0285
10:01-11:00, Thu., 13 Apr. 0.0303 0.0253 0.0282
09:01-10:00, Thu., 13 Apr. 0.0308 0.0261 0.0283
08:01-09:00, Thu., 13 Apr. 0.0309 0.0266 0.0285
07:01-08:00, Thu., 13 Apr. 0.0298 0.0262 0.0282
06:01-07:00, Thu., 13 Apr. 0.0301 0.0259 0.0280
05:01-06:00, Thu., 13 Apr. 0.0298 0.0249 0.0281
04:01-05:00, Thu., 13 Apr. 0.0309 0.0263 0.0281
03:01-04:00, Thu., 13 Apr. 0.0307 0.0259 0.0279
02:01-03:00, Thu., 13 Apr. 0.0302 0.0256 0.0280
01:01-02:00, Thu., 13 Apr. 0.0297 0.0269 0.0282
00:01-01:00, Thu., 13 Apr. 0.0300 0.0265 0.0284
23:01-24:00, Wed., 12 Apr. 0.0309 0.0259 0.0285
22:01-23:00, Wed., 12 Apr. 0.0307 0.0262 0.0286
21:01-22:00, Wed., 12 Apr. 0.0324 0.0265 0.0289
20:01-21:00, Wed., 12 Apr. 0.0325 0.0273 0.0295
19:01-20:00, Wed., 12 Apr. 0.0346 0.0285 0.0315
18:01-19:00, Wed., 12 Apr. 0.0356 0.0274 0.0306
17:01-18:00, Wed., 12 Apr. 0.0329 0.0272 0.0301
16:01-17:00, Wed., 12 Apr. 0.0306 0.0253 0.0284
15:01-16:00, Wed., 12 Apr. 0.0302 0.0259 0.0281
14:01-15:00, Wed., 12 Apr. 0.0308 0.0263 0.0282
13:01-14:00, Wed., 12 Apr. 0.0316 0.0256 0.0282
12:01-13:00, Wed., 12 Apr. 0.0325 0.0260 0.0282
11:01-12:00, Wed., 12 Apr. 0.0308 0.0266 0.0284
10:01-11:00, Wed., 12 Apr. 0.0294 0.0264 0.0280
09:01-10:00, Wed., 12 Apr. 0.0300 0.0262 0.0280
08:01-09:00, Wed., 12 Apr. 0.0302 0.0263 0.0281
07:01-08:00, Wed., 12 Apr. 0.0309 0.0264 0.0284
06:01-07:00, Wed., 12 Apr. 0.0308 0.0259 0.0282
05:01-06:00, Wed., 12 Apr. 0.0310 0.0262 0.0281
04:01-05:00, Wed., 12 Apr. 0.0308 0.0262 0.0284
03:01-04:00, Wed., 12 Apr. 0.0301 0.0259 0.0283
02:01-03:00, Wed., 12 Apr. 0.0298 0.0267 0.0280
01:01-02:00, Wed., 12 Apr. 0.0302 0.0250 0.0282
00:01-01:00, Wed., 12 Apr. 0.0297 0.0263 0.0279
23:01-24:00, Tue., 11 Apr. 0.0304 0.0260 0.0281
22:01-23:00, Tue., 11 Apr. 0.0309 0.0262 0.0280
21:01-22:00, Tue., 11 Apr. 0.0312 0.0260 0.0281
20:01-21:00, Tue., 11 Apr. 0.0302 0.0257 0.0280
19:01-20:00, Tue., 11 Apr. 0.0304 0.0262 0.0280
18:01-19:00, Tue., 11 Apr. 0.0304 0.0254 0.0279
17:01-18:00, Tue., 11 Apr. 0.0303 0.0256 0.0280
16:01-17:00, Tue., 11 Apr. 0.0301 0.0259 0.0282
15:01-16:00, Tue., 11 Apr. 0.0307 0.0254 0.0282
14:01-15:00, Tue., 11 Apr. 0.0297 0.0256 0.0280
13:01-14:00, Tue., 11 Apr. 0.0301 0.0263 0.0279
12:01-13:00, Tue., 11 Apr. 0.0304 0.0256 0.0281
11:01-12:00, Tue., 11 Apr. 0.0311 0.0256 0.0279
10:01-11:00, Tue., 11 Apr. 0.0304 0.0259 0.0280
09:01-10:00, Tue., 11 Apr. 0.0311 0.0249 0.0285
08:01-09:00, Tue., 11 Apr. 0.0312 0.0270 0.0288
07:01-08:00, Tue., 11 Apr. 0.0313 0.0270 0.0290
06:01-07:00, Tue., 11 Apr. 0.0315 0.0273 0.0293
05:01-06:00, Tue., 11 Apr. 0.0310 0.0273 0.0292
04:01-05:00, Tue., 11 Apr. 0.0315 0.0271 0.0290
03:01-04:00, Tue., 11 Apr. 0.0313 0.0270 0.0288
02:01-03:00, Tue., 11 Apr. 0.0316 0.0259 0.0284
01:01-02:00, Tue., 11 Apr. 0.0307 0.0262 0.0284
00:01-01:00, Tue., 11 Apr. 0.0309 0.0268 0.0286
23:01-24:00, Mon., 10 Apr. 0.0298 0.0270 0.0284
22:01-23:00, Mon., 10 Apr. 0.0305 0.0268 0.0285
21:01-22:00, Mon., 10 Apr. 0.0308 0.0262 0.0282
20:01-21:00, Mon., 10 Apr. 0.0302 0.0265 0.0282
19:01-20:00, Mon., 10 Apr. 0.0309 0.0265 0.0284
18:01-19:00, Mon., 10 Apr. 0.0309 0.0259 0.0284
17:01-18:00, Mon., 10 Apr. 0.0309 0.0264 0.0282
16:01-17:00, Mon., 10 Apr. 0.0301 0.0265 0.0283
15:01-16:00, Mon., 10 Apr. 0.0308 0.0265 0.0283
14:01-15:00, Mon., 10 Apr. 0.0305 0.0255 0.0283
13:01-14:00, Mon., 10 Apr. 0.0308 0.0270 0.0285
12:01-13:00, Mon., 10 Apr. 0.0303 0.0261 0.0283
11:01-12:00, Mon., 10 Apr. 0.0314 0.0257 0.0283
10:01-11:00, Mon., 10 Apr. 0.0306 0.0266 0.0284
09:01-10:00, Mon., 10 Apr. 0.0306 0.0259 0.0284
08:01-09:00, Mon., 10 Apr. 0.0304 0.0266 0.0285
07:01-08:00, Mon., 10 Apr. 0.0315 0.0270 0.0286
06:01-07:00, Mon., 10 Apr. 0.0312 0.0270 0.0288
05:01-06:00, Mon., 10 Apr. 0.0309 0.0267 0.0287
04:01-05:00, Mon., 10 Apr. 0.0313 0.0272 0.0289
03:01-04:00, Mon., 10 Apr. 0.0306 0.0255 0.0286
02:01-03:00, Mon., 10 Apr. 0.0303 0.0265 0.0283
01:01-02:00, Mon., 10 Apr. 0.0309 0.0269 0.0287
00:01-01:00, Mon., 10 Apr. 0.0310 0.0260 0.0287