Measurement results by the hour (Chofu) 22 Apr., 2024 - 28 Apr., 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., 28 Apr. 0.0296 0.0259 0.0278
22:01-23:00, Sun., 28 Apr. 0.0301 0.0261 0.0280
21:01-22:00, Sun., 28 Apr. 0.0310 0.0259 0.0280
20:01-21:00, Sun., 28 Apr. 0.0298 0.0259 0.0279
19:01-20:00, Sun., 28 Apr. 0.0313 0.0257 0.0284
18:01-19:00, Sun., 28 Apr. 0.0298 0.0258 0.0281
17:01-18:00, Sun., 28 Apr. 0.0301 0.0264 0.0282
16:01-17:00, Sun., 28 Apr. 0.0307 0.0263 0.0279
15:01-16:00, Sun., 28 Apr. 0.0296 0.0266 0.0282
14:01-15:00, Sun., 28 Apr. 0.0309 0.0263 0.0283
13:01-14:00, Sun., 28 Apr. 0.0301 0.0261 0.0283
12:01-13:00, Sun., 28 Apr. 0.0306 0.0266 0.0286
11:01-12:00, Sun., 28 Apr. 0.0311 0.0255 0.0283
10:01-11:00, Sun., 28 Apr. 0.0317 0.0265 0.0286
09:01-10:00, Sun., 28 Apr. 0.0313 0.0268 0.0290
08:01-09:00, Sun., 28 Apr. 0.0318 0.0273 0.0288
07:01-08:00, Sun., 28 Apr. 0.0337 0.0273 0.0296
06:01-07:00, Sun., 28 Apr. 0.0325 0.0281 0.0303
05:01-06:00, Sun., 28 Apr. 0.0323 0.0278 0.0301
04:01-05:00, Sun., 28 Apr. 0.0322 0.0280 0.0296
03:01-04:00, Sun., 28 Apr. 0.0316 0.0266 0.0294
02:01-03:00, Sun., 28 Apr. 0.0307 0.0266 0.0285
01:01-02:00, Sun., 28 Apr. 0.0300 0.0252 0.0278
00:01-01:00, Sun., 28 Apr. 0.0294 0.0263 0.0280
23:01-24:00, Sat., 27 Apr. 0.0301 0.0259 0.0278
22:01-23:00, Sat., 27 Apr. 0.0301 0.0249 0.0277
21:01-22:00, Sat., 27 Apr. 0.0300 0.0249 0.0275
20:01-21:00, Sat., 27 Apr. 0.0315 0.0256 0.0277
19:01-20:00, Sat., 27 Apr. 0.0296 0.0255 0.0273
18:01-19:00, Sat., 27 Apr. 0.0303 0.0256 0.0275
17:01-18:00, Sat., 27 Apr. 0.0304 0.0257 0.0278
16:01-17:00, Sat., 27 Apr. 0.0296 0.0252 0.0275
15:01-16:00, Sat., 27 Apr. 0.0295 0.0254 0.0277
14:01-15:00, Sat., 27 Apr. 0.0303 0.0258 0.0278
13:01-14:00, Sat., 27 Apr. 0.0303 0.0260 0.0281
12:01-13:00, Sat., 27 Apr. 0.0299 0.0262 0.0280
11:01-12:00, Sat., 27 Apr. 0.0304 0.0270 0.0288
10:01-11:00, Sat., 27 Apr. 0.0320 0.0269 0.0297
09:01-10:00, Sat., 27 Apr. 0.0343 0.0286 0.0307
08:01-09:00, Sat., 27 Apr. 0.0353 0.0299 0.0322
07:01-08:00, Sat., 27 Apr. 0.0339 0.0301 0.0323
06:01-07:00, Sat., 27 Apr. 0.0333 0.0286 0.0314
05:01-06:00, Sat., 27 Apr. 0.0335 0.0279 0.0304
04:01-05:00, Sat., 27 Apr. 0.0302 0.0262 0.0285
03:01-04:00, Sat., 27 Apr. 0.0298 0.0261 0.0280
02:01-03:00, Sat., 27 Apr. 0.0304 0.0252 0.0281
01:01-02:00, Sat., 27 Apr. 0.0302 0.0260 0.0280
00:01-01:00, Sat., 27 Apr. 0.0308 0.0256 0.0282
23:01-24:00, Fri., 26 Apr. 0.0304 0.0257 0.0280
22:01-23:00, Fri., 26 Apr. 0.0300 0.0263 0.0281
21:01-22:00, Fri., 26 Apr. 0.0304 0.0253 0.0278
20:01-21:00, Fri., 26 Apr. 0.0298 0.0259 0.0277
19:01-20:00, Fri., 26 Apr. 0.0305 0.0252 0.0278
18:01-19:00, Fri., 26 Apr. 0.0300 0.0258 0.0277
17:01-18:00, Fri., 26 Apr. 0.0299 0.0262 0.0279
16:01-17:00, Fri., 26 Apr. 0.0298 0.0256 0.0278
15:01-16:00, Fri., 26 Apr. 0.0299 0.0255 0.0279
14:01-15:00, Fri., 26 Apr. 0.0295 0.0262 0.0278
13:01-14:00, Fri., 26 Apr. 0.0296 0.0256 0.0277
12:01-13:00, Fri., 26 Apr. 0.0301 0.0258 0.0277
11:01-12:00, Fri., 26 Apr. 0.0293 0.0258 0.0277
10:01-11:00, Fri., 26 Apr. 0.0299 0.0255 0.0279
09:01-10:00, Fri., 26 Apr. 0.0308 0.0253 0.0279
08:01-09:00, Fri., 26 Apr. 0.0305 0.0258 0.0281
07:01-08:00, Fri., 26 Apr. 0.0303 0.0256 0.0280
06:01-07:00, Fri., 26 Apr. 0.0301 0.0254 0.0282
05:01-06:00, Fri., 26 Apr. 0.0303 0.0251 0.0277
04:01-05:00, Fri., 26 Apr. 0.0298 0.0254 0.0274
03:01-04:00, Fri., 26 Apr. 0.0293 0.0259 0.0277
02:01-03:00, Fri., 26 Apr. 0.0304 0.0256 0.0279
01:01-02:00, Fri., 26 Apr. 0.0308 0.0259 0.0281
00:01-01:00, Fri., 26 Apr. 0.0297 0.0259 0.0278
23:01-24:00, Thu., 25 Apr. 0.0297 0.0252 0.0277
22:01-23:00, Thu., 25 Apr. 0.0298 0.0257 0.0277
21:01-22:00, Thu., 25 Apr. 0.0296 0.0260 0.0279
20:01-21:00, Thu., 25 Apr. 0.0298 0.0256 0.0277
19:01-20:00, Thu., 25 Apr. 0.0295 0.0249 0.0274
18:01-19:00, Thu., 25 Apr. 0.0300 0.0247 0.0274
17:01-18:00, Thu., 25 Apr. 0.0309 0.0256 0.0277
16:01-17:00, Thu., 25 Apr. 0.0299 0.0253 0.0275
15:01-16:00, Thu., 25 Apr. 0.0298 0.0249 0.0278
14:01-15:00, Thu., 25 Apr. 0.0306 0.0261 0.0276
13:01-14:00, Thu., 25 Apr. 0.0294 0.0251 0.0274
12:01-13:00, Thu., 25 Apr. 0.0295 0.0248 0.0274
11:01-12:00, Thu., 25 Apr. 0.0291 0.0254 0.0274
10:01-11:00, Thu., 25 Apr. 0.0298 0.0259 0.0276
09:01-10:00, Thu., 25 Apr. 0.0293 0.0257 0.0275
08:01-09:00, Thu., 25 Apr. 0.0297 0.0256 0.0274
07:01-08:00, Thu., 25 Apr. 0.0295 0.0256 0.0278
06:01-07:00, Thu., 25 Apr. 0.0296 0.0257 0.0276
05:01-06:00, Thu., 25 Apr. 0.0298 0.0249 0.0271
04:01-05:00, Thu., 25 Apr. 0.0290 0.0253 0.0270
03:01-04:00, Thu., 25 Apr. 0.0289 0.0249 0.0269
02:01-03:00, Thu., 25 Apr. 0.0298 0.0256 0.0271
01:01-02:00, Thu., 25 Apr. 0.0310 0.0257 0.0278
00:01-01:00, Thu., 25 Apr. 0.0315 0.0277 0.0295
23:01-24:00, Wed., 24 Apr. 0.0348 0.0286 0.0320
22:01-23:00, Wed., 24 Apr. 0.0356 0.0315 0.0333
21:01-22:00, Wed., 24 Apr. 0.0353 0.0311 0.0336
20:01-21:00, Wed., 24 Apr. 0.0360 0.0307 0.0334
19:01-20:00, Wed., 24 Apr. 0.0349 0.0298 0.0321
18:01-19:00, Wed., 24 Apr. 0.0328 0.0291 0.0310
17:01-18:00, Wed., 24 Apr. 0.0325 0.0282 0.0303
16:01-17:00, Wed., 24 Apr. 0.0332 0.0287 0.0310
15:01-16:00, Wed., 24 Apr. 0.0330 0.0281 0.0306
14:01-15:00, Wed., 24 Apr. 0.0332 0.0282 0.0307
13:01-14:00, Wed., 24 Apr. 0.0363 0.0303 0.0332
12:01-13:00, Wed., 24 Apr. 0.0354 0.0297 0.0325
11:01-12:00, Wed., 24 Apr. 0.0335 0.0270 0.0297
10:01-11:00, Wed., 24 Apr. 0.0307 0.0266 0.0283
09:01-10:00, Wed., 24 Apr. 0.0320 0.0271 0.0291
08:01-09:00, Wed., 24 Apr. 0.0316 0.0255 0.0289
07:01-08:00, Wed., 24 Apr. 0.0363 0.0288 0.0323
06:01-07:00, Wed., 24 Apr. 0.0398 0.0334 0.0366
05:01-06:00, Wed., 24 Apr. 0.0368 0.0315 0.0337
04:01-05:00, Wed., 24 Apr. 0.0339 0.0268 0.0302
03:01-04:00, Wed., 24 Apr. 0.0290 0.0252 0.0272
02:01-03:00, Wed., 24 Apr. 0.0290 0.0256 0.0273
01:01-02:00, Wed., 24 Apr. 0.0294 0.0252 0.0273
00:01-01:00, Wed., 24 Apr. 0.0297 0.0256 0.0275
23:01-24:00, Tue., 23 Apr. 0.0293 0.0258 0.0273
22:01-23:00, Tue., 23 Apr. 0.0296 0.0252 0.0272
21:01-22:00, Tue., 23 Apr. 0.0298 0.0251 0.0275
20:01-21:00, Tue., 23 Apr. 0.0298 0.0257 0.0277
19:01-20:00, Tue., 23 Apr. 0.0308 0.0266 0.0286
18:01-19:00, Tue., 23 Apr. 0.0331 0.0280 0.0302
17:01-18:00, Tue., 23 Apr. 0.0322 0.0273 0.0297
16:01-17:00, Tue., 23 Apr. 0.0304 0.0248 0.0276
15:01-16:00, Tue., 23 Apr. 0.0305 0.0255 0.0278
14:01-15:00, Tue., 23 Apr. 0.0301 0.0261 0.0277
13:01-14:00, Tue., 23 Apr. 0.0299 0.0260 0.0277
12:01-13:00, Tue., 23 Apr. 0.0304 0.0257 0.0283
11:01-12:00, Tue., 23 Apr. 0.0298 0.0255 0.0275
10:01-11:00, Tue., 23 Apr. 0.0304 0.0246 0.0275
09:01-10:00, Tue., 23 Apr. 0.0300 0.0260 0.0276
08:01-09:00, Tue., 23 Apr. 0.0293 0.0256 0.0278
07:01-08:00, Tue., 23 Apr. 0.0307 0.0259 0.0280
06:01-07:00, Tue., 23 Apr. 0.0303 0.0263 0.0283
05:01-06:00, Tue., 23 Apr. 0.0314 0.0263 0.0280
04:01-05:00, Tue., 23 Apr. 0.0295 0.0258 0.0277
03:01-04:00, Tue., 23 Apr. 0.0301 0.0252 0.0279
02:01-03:00, Tue., 23 Apr. 0.0303 0.0262 0.0278
01:01-02:00, Tue., 23 Apr. 0.0298 0.0256 0.0277
00:01-01:00, Tue., 23 Apr. 0.0298 0.0257 0.0278
23:01-24:00, Mon., 22 Apr. 0.0298 0.0262 0.0277
22:01-23:00, Mon., 22 Apr. 0.0305 0.0257 0.0274
21:01-22:00, Mon., 22 Apr. 0.0297 0.0259 0.0275
20:01-21:00, Mon., 22 Apr. 0.0299 0.0257 0.0277
19:01-20:00, Mon., 22 Apr. 0.0295 0.0256 0.0278
18:01-19:00, Mon., 22 Apr. 0.0298 0.0257 0.0278
17:01-18:00, Mon., 22 Apr. 0.0299 0.0259 0.0276
16:01-17:00, Mon., 22 Apr. 0.0295 0.0258 0.0276
15:01-16:00, Mon., 22 Apr. 0.0302 0.0256 0.0278
14:01-15:00, Mon., 22 Apr. 0.0295 0.0259 0.0278
13:01-14:00, Mon., 22 Apr. 0.0300 0.0262 0.0279
12:01-13:00, Mon., 22 Apr. 0.0302 0.0260 0.0279
11:01-12:00, Mon., 22 Apr. 0.0301 0.0256 0.0282
10:01-11:00, Mon., 22 Apr. 0.0317 0.0265 0.0292
09:01-10:00, Mon., 22 Apr. 0.0335 0.0288 0.0309
08:01-09:00, Mon., 22 Apr. 0.0368 0.0301 0.0333
07:01-08:00, Mon., 22 Apr. 0.0360 0.0301 0.0331
06:01-07:00, Mon., 22 Apr. 0.0352 0.0297 0.0322
05:01-06:00, Mon., 22 Apr. 0.0399 0.0313 0.0352
04:01-05:00, Mon., 22 Apr. 0.0417 0.0346 0.0383
03:01-04:00, Mon., 22 Apr. 0.0438 0.0371 0.0398
02:01-03:00, Mon., 22 Apr. 0.0411 0.0363 0.0388
01:01-02:00, Mon., 22 Apr. 0.0427 0.0370 0.0401
00:01-01:00, Mon., 22 Apr. 0.0450 0.0381 0.0420