Measurement results by the hour (Chofu) 13 Mar., 2023 - 19 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., 19 Mar. 0.0296 0.0254 0.0276
22:01-23:00, Sun., 19 Mar. 0.0300 0.0244 0.0274
21:01-22:00, Sun., 19 Mar. 0.0291 0.0236 0.0273
20:01-21:00, Sun., 19 Mar. 0.0295 0.0256 0.0274
19:01-20:00, Sun., 19 Mar. 0.0301 0.0259 0.0274
18:01-19:00, Sun., 19 Mar. 0.0295 0.0259 0.0276
17:01-18:00, Sun., 19 Mar. 0.0299 0.0245 0.0276
16:01-17:00, Sun., 19 Mar. 0.0304 0.0253 0.0277
15:01-16:00, Sun., 19 Mar. 0.0299 0.0259 0.0279
14:01-15:00, Sun., 19 Mar. 0.0298 0.0259 0.0277
13:01-14:00, Sun., 19 Mar. 0.0301 0.0263 0.0278
12:01-13:00, Sun., 19 Mar. 0.0290 0.0262 0.0276
11:01-12:00, Sun., 19 Mar. 0.0300 0.0256 0.0276
10:01-11:00, Sun., 19 Mar. 0.0292 0.0258 0.0275
09:01-10:00, Sun., 19 Mar. 0.0301 0.0257 0.0276
08:01-09:00, Sun., 19 Mar. 0.0296 0.0251 0.0274
07:01-08:00, Sun., 19 Mar. 0.0290 0.0258 0.0276
06:01-07:00, Sun., 19 Mar. 0.0298 0.0256 0.0276
05:01-06:00, Sun., 19 Mar. 0.0293 0.0254 0.0275
04:01-05:00, Sun., 19 Mar. 0.0293 0.0247 0.0272
03:01-04:00, Sun., 19 Mar. 0.0299 0.0256 0.0274
02:01-03:00, Sun., 19 Mar. 0.0286 0.0250 0.0272
01:01-02:00, Sun., 19 Mar. 0.0298 0.0260 0.0277
00:01-01:00, Sun., 19 Mar. 0.0303 0.0256 0.0279
23:01-24:00, Sat., 18 Mar. 0.0296 0.0262 0.0279
22:01-23:00, Sat., 18 Mar. 0.0307 0.0266 0.0279
21:01-22:00, Sat., 18 Mar. 0.0301 0.0260 0.0277
20:01-21:00, Sat., 18 Mar. 0.0298 0.0259 0.0277
19:01-20:00, Sat., 18 Mar. 0.0302 0.0253 0.0282
18:01-19:00, Sat., 18 Mar. 0.0328 0.0272 0.0296
17:01-18:00, Sat., 18 Mar. 0.0355 0.0298 0.0322
16:01-17:00, Sat., 18 Mar. 0.0463 0.0339 0.0402
15:01-16:00, Sat., 18 Mar. 0.0502 0.0436 0.0465
14:01-15:00, Sat., 18 Mar. 0.0459 0.0385 0.0419
13:01-14:00, Sat., 18 Mar. 0.0442 0.0384 0.0405
12:01-13:00, Sat., 18 Mar. 0.0423 0.0294 0.0365
11:01-12:00, Sat., 18 Mar. 0.0336 0.0290 0.0312
10:01-11:00, Sat., 18 Mar. 0.0383 0.0326 0.0353
09:01-10:00, Sat., 18 Mar. 0.0418 0.0371 0.0394
08:01-09:00, Sat., 18 Mar. 0.0432 0.0374 0.0402
07:01-08:00, Sat., 18 Mar. 0.0436 0.0384 0.0406
06:01-07:00, Sat., 18 Mar. 0.0443 0.0383 0.0414
05:01-06:00, Sat., 18 Mar. 0.0428 0.0357 0.0391
04:01-05:00, Sat., 18 Mar. 0.0412 0.0357 0.0385
03:01-04:00, Sat., 18 Mar. 0.0401 0.0355 0.0380
02:01-03:00, Sat., 18 Mar. 0.0401 0.0347 0.0374
01:01-02:00, Sat., 18 Mar. 0.0422 0.0367 0.0387
00:01-01:00, Sat., 18 Mar. 0.0418 0.0359 0.0390
23:01-24:00, Fri., 17 Mar. 0.0405 0.0349 0.0381
22:01-23:00, Fri., 17 Mar. 0.0396 0.0353 0.0378
21:01-22:00, Fri., 17 Mar. 0.0389 0.0266 0.0322
20:01-21:00, Fri., 17 Mar. 0.0309 0.0263 0.0286
19:01-20:00, Fri., 17 Mar. 0.0303 0.0273 0.0284
18:01-19:00, Fri., 17 Mar. 0.0302 0.0262 0.0285
17:01-18:00, Fri., 17 Mar. 0.0296 0.0266 0.0281
16:01-17:00, Fri., 17 Mar. 0.0308 0.0262 0.0282
15:01-16:00, Fri., 17 Mar. 0.0304 0.0262 0.0284
14:01-15:00, Fri., 17 Mar. 0.0307 0.0262 0.0284
13:01-14:00, Fri., 17 Mar. 0.0302 0.0260 0.0286
12:01-13:00, Fri., 17 Mar. 0.0302 0.0263 0.0282
11:01-12:00, Fri., 17 Mar. 0.0303 0.0256 0.0282
10:01-11:00, Fri., 17 Mar. 0.0308 0.0267 0.0286
09:01-10:00, Fri., 17 Mar. 0.0306 0.0267 0.0287
08:01-09:00, Fri., 17 Mar. 0.0309 0.0269 0.0288
07:01-08:00, Fri., 17 Mar. 0.0309 0.0271 0.0291
06:01-07:00, Fri., 17 Mar. 0.0315 0.0270 0.0291
05:01-06:00, Fri., 17 Mar. 0.0308 0.0263 0.0291
04:01-05:00, Fri., 17 Mar. 0.0310 0.0270 0.0289
03:01-04:00, Fri., 17 Mar. 0.0316 0.0270 0.0288
02:01-03:00, Fri., 17 Mar. 0.0321 0.0263 0.0288
01:01-02:00, Fri., 17 Mar. 0.0310 0.0262 0.0287
00:01-01:00, Fri., 17 Mar. 0.0310 0.0266 0.0287
23:01-24:00, Thu., 16 Mar. 0.0298 0.0256 0.0279
22:01-23:00, Thu., 16 Mar. 0.0301 0.0262 0.0279
21:01-22:00, Thu., 16 Mar. 0.0304 0.0262 0.0277
20:01-21:00, Thu., 16 Mar. 0.0308 0.0253 0.0278
19:01-20:00, Thu., 16 Mar. 0.0303 0.0252 0.0278
18:01-19:00, Thu., 16 Mar. 0.0305 0.0261 0.0278
17:01-18:00, Thu., 16 Mar. 0.0299 0.0254 0.0274
16:01-17:00, Thu., 16 Mar. 0.0294 0.0256 0.0277
15:01-16:00, Thu., 16 Mar. 0.0300 0.0255 0.0278
14:01-15:00, Thu., 16 Mar. 0.0301 0.0253 0.0278
13:01-14:00, Thu., 16 Mar. 0.0305 0.0260 0.0278
12:01-13:00, Thu., 16 Mar. 0.0300 0.0253 0.0282
11:01-12:00, Thu., 16 Mar. 0.0297 0.0262 0.0282
10:01-11:00, Thu., 16 Mar. 0.0306 0.0256 0.0283
09:01-10:00, Thu., 16 Mar. 0.0304 0.0260 0.0283
08:01-09:00, Thu., 16 Mar. 0.0303 0.0266 0.0286
07:01-08:00, Thu., 16 Mar. 0.0305 0.0263 0.0286
06:01-07:00, Thu., 16 Mar. 0.0304 0.0266 0.0284
05:01-06:00, Thu., 16 Mar. 0.0308 0.0262 0.0284
04:01-05:00, Thu., 16 Mar. 0.0307 0.0273 0.0287
03:01-04:00, Thu., 16 Mar. 0.0311 0.0262 0.0286
02:01-03:00, Thu., 16 Mar. 0.0311 0.0263 0.0285
01:01-02:00, Thu., 16 Mar. 0.0314 0.0263 0.0287
00:01-01:00, Thu., 16 Mar. 0.0301 0.0266 0.0282
23:01-24:00, Wed., 15 Mar. 0.0298 0.0254 0.0278
22:01-23:00, Wed., 15 Mar. 0.0304 0.0254 0.0277
21:01-22:00, Wed., 15 Mar. 0.0301 0.0261 0.0279
20:01-21:00, Wed., 15 Mar. 0.0300 0.0251 0.0278
19:01-20:00, Wed., 15 Mar. 0.0315 0.0259 0.0278
18:01-19:00, Wed., 15 Mar. 0.0300 0.0258 0.0278
17:01-18:00, Wed., 15 Mar. 0.0297 0.0250 0.0275
16:01-17:00, Wed., 15 Mar. 0.0304 0.0259 0.0279
15:01-16:00, Wed., 15 Mar. 0.0307 0.0249 0.0275
14:01-15:00, Wed., 15 Mar. 0.0301 0.0263 0.0277
13:01-14:00, Wed., 15 Mar. 0.0302 0.0258 0.0281
12:01-13:00, Wed., 15 Mar. 0.0300 0.0256 0.0279
11:01-12:00, Wed., 15 Mar. 0.0300 0.0247 0.0280
10:01-11:00, Wed., 15 Mar. 0.0300 0.0251 0.0279
09:01-10:00, Wed., 15 Mar. 0.0308 0.0256 0.0281
08:01-09:00, Wed., 15 Mar. 0.0301 0.0256 0.0283
07:01-08:00, Wed., 15 Mar. 0.0302 0.0264 0.0283
06:01-07:00, Wed., 15 Mar. 0.0309 0.0259 0.0282
05:01-06:00, Wed., 15 Mar. 0.0314 0.0262 0.0285
04:01-05:00, Wed., 15 Mar. 0.0309 0.0263 0.0285
03:01-04:00, Wed., 15 Mar. 0.0307 0.0263 0.0285
02:01-03:00, Wed., 15 Mar. 0.0299 0.0255 0.0277
01:01-02:00, Wed., 15 Mar. 0.0308 0.0259 0.0278
00:01-01:00, Wed., 15 Mar. 0.0294 0.0260 0.0277
23:01-24:00, Tue., 14 Mar. 0.0298 0.0259 0.0276
22:01-23:00, Tue., 14 Mar. 0.0304 0.0254 0.0277
21:01-22:00, Tue., 14 Mar. 0.0302 0.0247 0.0279
20:01-21:00, Tue., 14 Mar. 0.0299 0.0262 0.0277
19:01-20:00, Tue., 14 Mar. 0.0304 0.0264 0.0281
18:01-19:00, Tue., 14 Mar. 0.0303 0.0255 0.0277
17:01-18:00, Tue., 14 Mar. 0.0299 0.0257 0.0280
16:01-17:00, Tue., 14 Mar. 0.0303 0.0260 0.0281
15:01-16:00, Tue., 14 Mar. 0.0301 0.0262 0.0282
14:01-15:00, Tue., 14 Mar. 0.0298 0.0260 0.0279
13:01-14:00, Tue., 14 Mar. 0.0301 0.0255 0.0280
12:01-13:00, Tue., 14 Mar. 0.0300 0.0260 0.0280
11:01-12:00, Tue., 14 Mar. 0.0306 0.0254 0.0281
10:01-11:00, Tue., 14 Mar. 0.0300 0.0260 0.0282
09:01-10:00, Tue., 14 Mar. 0.0307 0.0262 0.0280
08:01-09:00, Tue., 14 Mar. 0.0304 0.0261 0.0281
07:01-08:00, Tue., 14 Mar. 0.0305 0.0260 0.0280
06:01-07:00, Tue., 14 Mar. 0.0304 0.0248 0.0281
05:01-06:00, Tue., 14 Mar. 0.0300 0.0262 0.0281
04:01-05:00, Tue., 14 Mar. 0.0303 0.0256 0.0282
03:01-04:00, Tue., 14 Mar. 0.0302 0.0258 0.0281
02:01-03:00, Tue., 14 Mar. 0.0304 0.0258 0.0282
01:01-02:00, Tue., 14 Mar. 0.0307 0.0260 0.0281
00:01-01:00, Tue., 14 Mar. 0.0301 0.0260 0.0279
23:01-24:00, Mon., 13 Mar. 0.0298 0.0262 0.0280
22:01-23:00, Mon., 13 Mar. 0.0308 0.0249 0.0278
21:01-22:00, Mon., 13 Mar. 0.0304 0.0256 0.0280
20:01-21:00, Mon., 13 Mar. 0.0312 0.0260 0.0279
19:01-20:00, Mon., 13 Mar. 0.0304 0.0258 0.0280
18:01-19:00, Mon., 13 Mar. 0.0297 0.0259 0.0278
17:01-18:00, Mon., 13 Mar. 0.0295 0.0250 0.0276
16:01-17:00, Mon., 13 Mar. 0.0294 0.0246 0.0274
15:01-16:00, Mon., 13 Mar. 0.0301 0.0264 0.0281
14:01-15:00, Mon., 13 Mar. 0.0338 0.0273 0.0302
13:01-14:00, Mon., 13 Mar. 0.0390 0.0318 0.0351
12:01-13:00, Mon., 13 Mar. 0.0389 0.0326 0.0362
11:01-12:00, Mon., 13 Mar. 0.0390 0.0326 0.0363
10:01-11:00, Mon., 13 Mar. 0.0358 0.0285 0.0318
09:01-10:00, Mon., 13 Mar. 0.0309 0.0266 0.0287
08:01-09:00, Mon., 13 Mar. 0.0302 0.0267 0.0283
07:01-08:00, Mon., 13 Mar. 0.0308 0.0259 0.0283
06:01-07:00, Mon., 13 Mar. 0.0305 0.0261 0.0282
05:01-06:00, Mon., 13 Mar. 0.0307 0.0256 0.0283
04:01-05:00, Mon., 13 Mar. 0.0302 0.0264 0.0285
03:01-04:00, Mon., 13 Mar. 0.0304 0.0263 0.0285
02:01-03:00, Mon., 13 Mar. 0.0310 0.0266 0.0288
01:01-02:00, Mon., 13 Mar. 0.0323 0.0273 0.0289
00:01-01:00, Mon., 13 Mar. 0.0300 0.0263 0.0282