Measurement results by the hour (Chofu) 17 Feb., 2020 - 23 Feb., 2020

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., 23 Feb. 0.0320 0.0273 0.0292
22:01-23:00, Sun., 23 Feb. 0.0310 0.0268 0.0290
21:01-22:00, Sun., 23 Feb. 0.0310 0.0275 0.0289
20:01-21:00, Sun., 23 Feb. 0.0310 0.0273 0.0291
19:01-20:00, Sun., 23 Feb. 0.0312 0.0275 0.0291
18:01-19:00, Sun., 23 Feb. 0.0308 0.0275 0.0294
17:01-18:00, Sun., 23 Feb. 0.0319 0.0278 0.0296
16:01-17:00, Sun., 23 Feb. 0.0319 0.0280 0.0297
15:01-16:00, Sun., 23 Feb. 0.0315 0.0278 0.0298
14:01-15:00, Sun., 23 Feb. 0.0307 0.0280 0.0293
13:01-14:00, Sun., 23 Feb. 0.0316 0.0275 0.0292
12:01-13:00, Sun., 23 Feb. 0.0303 0.0262 0.0284
11:01-12:00, Sun., 23 Feb. 0.0305 0.0264 0.0283
10:01-11:00, Sun., 23 Feb. 0.0297 0.0264 0.0280
09:01-10:00, Sun., 23 Feb. 0.0297 0.0261 0.0281
08:01-09:00, Sun., 23 Feb. 0.0304 0.0266 0.0281
07:01-08:00, Sun., 23 Feb. 0.0304 0.0261 0.0282
06:01-07:00, Sun., 23 Feb. 0.0292 0.0259 0.0276
05:01-06:00, Sun., 23 Feb. 0.0302 0.0263 0.0278
04:01-05:00, Sun., 23 Feb. 0.0297 0.0256 0.0277
03:01-04:00, Sun., 23 Feb. 0.0303 0.0263 0.0281
02:01-03:00, Sun., 23 Feb. 0.0294 0.0257 0.0274
01:01-02:00, Sun., 23 Feb. 0.0295 0.0254 0.0277
00:01-01:00, Sun., 23 Feb. 0.0298 0.0265 0.0279
23:01-24:00, Sat., 22 Feb. 0.0297 0.0261 0.0280
22:01-23:00, Sat., 22 Feb. 0.0295 0.0258 0.0275
21:01-22:00, Sat., 22 Feb. 0.0292 0.0258 0.0274
20:01-21:00, Sat., 22 Feb. 0.0304 0.0260 0.0281
19:01-20:00, Sat., 22 Feb. 0.0341 0.0273 0.0306
18:01-19:00, Sat., 22 Feb. 0.0337 0.0281 0.0312
17:01-18:00, Sat., 22 Feb. 0.0297 0.0256 0.0277
16:01-17:00, Sat., 22 Feb. 0.0285 0.0250 0.0268
15:01-16:00, Sat., 22 Feb. 0.0286 0.0252 0.0270
14:01-15:00, Sat., 22 Feb. 0.0290 0.0262 0.0275
13:01-14:00, Sat., 22 Feb. 0.0304 0.0255 0.0276
12:01-13:00, Sat., 22 Feb. 0.0296 0.0250 0.0272
11:01-12:00, Sat., 22 Feb. 0.0291 0.0259 0.0275
10:01-11:00, Sat., 22 Feb. 0.0293 0.0256 0.0272
09:01-10:00, Sat., 22 Feb. 0.0303 0.0255 0.0277
08:01-09:00, Sat., 22 Feb. 0.0301 0.0259 0.0281
07:01-08:00, Sat., 22 Feb. 0.0302 0.0270 0.0284
06:01-07:00, Sat., 22 Feb. 0.0308 0.0271 0.0289
05:01-06:00, Sat., 22 Feb. 0.0330 0.0287 0.0304
04:01-05:00, Sat., 22 Feb. 0.0348 0.0288 0.0322
03:01-04:00, Sat., 22 Feb. 0.0340 0.0289 0.0319
02:01-03:00, Sat., 22 Feb. 0.0325 0.0269 0.0294
01:01-02:00, Sat., 22 Feb. 0.0309 0.0271 0.0288
00:01-01:00, Sat., 22 Feb. 0.0315 0.0272 0.0291
23:01-24:00, Fri., 21 Feb. 0.0306 0.0256 0.0285
22:01-23:00, Fri., 21 Feb. 0.0295 0.0261 0.0277
21:01-22:00, Fri., 21 Feb. 0.0294 0.0255 0.0277
20:01-21:00, Fri., 21 Feb. 0.0293 0.0250 0.0276
19:01-20:00, Fri., 21 Feb. 0.0296 0.0261 0.0276
18:01-19:00, Fri., 21 Feb. 0.0300 0.0259 0.0277
17:01-18:00, Fri., 21 Feb. 0.0293 0.0257 0.0274
16:01-17:00, Fri., 21 Feb. 0.0291 0.0253 0.0276
15:01-16:00, Fri., 21 Feb. 0.0289 0.0257 0.0276
14:01-15:00, Fri., 21 Feb. 0.0294 0.0256 0.0275
13:01-14:00, Fri., 21 Feb. 0.0295 0.0259 0.0278
12:01-13:00, Fri., 21 Feb. 0.0298 0.0260 0.0279
11:01-12:00, Fri., 21 Feb. 0.0304 0.0257 0.0279
10:01-11:00, Fri., 21 Feb. 0.0297 0.0267 0.0283
09:01-10:00, Fri., 21 Feb. 0.0298 0.0262 0.0282
08:01-09:00, Fri., 21 Feb. 0.0300 0.0257 0.0282
07:01-08:00, Fri., 21 Feb. 0.0307 0.0266 0.0282
06:01-07:00, Fri., 21 Feb. 0.0304 0.0263 0.0283
05:01-06:00, Fri., 21 Feb. 0.0296 0.0262 0.0280
04:01-05:00, Fri., 21 Feb. 0.0306 0.0261 0.0280
03:01-04:00, Fri., 21 Feb. 0.0302 0.0261 0.0278
02:01-03:00, Fri., 21 Feb. 0.0299 0.0250 0.0276
01:01-02:00, Fri., 21 Feb. 0.0300 0.0258 0.0278
00:01-01:00, Fri., 21 Feb. 0.0297 0.0262 0.0277
23:01-24:00, Thu., 20 Feb. 0.0286 0.0256 0.0272
22:01-23:00, Thu., 20 Feb. 0.0296 0.0258 0.0275
21:01-22:00, Thu., 20 Feb. 0.0295 0.0260 0.0274
20:01-21:00, Thu., 20 Feb. 0.0291 0.0253 0.0275
19:01-20:00, Thu., 20 Feb. 0.0295 0.0259 0.0274
18:01-19:00, Thu., 20 Feb. 0.0292 0.0251 0.0276
17:01-18:00, Thu., 20 Feb. 0.0296 0.0258 0.0278
16:01-17:00, Thu., 20 Feb. 0.0293 0.0256 0.0276
15:01-16:00, Thu., 20 Feb. 0.0291 0.0257 0.0274
14:01-15:00, Thu., 20 Feb. 0.0290 0.0262 0.0274
13:01-14:00, Thu., 20 Feb. 0.0292 0.0261 0.0278
12:01-13:00, Thu., 20 Feb. 0.0301 0.0258 0.0276
11:01-12:00, Thu., 20 Feb. 0.0304 0.0259 0.0282
10:01-11:00, Thu., 20 Feb. 0.0311 0.0258 0.0282
09:01-10:00, Thu., 20 Feb. 0.0303 0.0266 0.0283
08:01-09:00, Thu., 20 Feb. 0.0313 0.0270 0.0291
07:01-08:00, Thu., 20 Feb. 0.0312 0.0273 0.0292
06:01-07:00, Thu., 20 Feb. 0.0304 0.0269 0.0288
05:01-06:00, Thu., 20 Feb. 0.0309 0.0275 0.0287
04:01-05:00, Thu., 20 Feb. 0.0314 0.0259 0.0284
03:01-04:00, Thu., 20 Feb. 0.0302 0.0267 0.0283
02:01-03:00, Thu., 20 Feb. 0.0303 0.0265 0.0282
01:01-02:00, Thu., 20 Feb. 0.0305 0.0265 0.0282
00:01-01:00, Thu., 20 Feb. 0.0297 0.0258 0.0281
23:01-24:00, Wed., 19 Feb. 0.0299 0.0263 0.0282
22:01-23:00, Wed., 19 Feb. 0.0296 0.0262 0.0281
21:01-22:00, Wed., 19 Feb. 0.0299 0.0253 0.0279
20:01-21:00, Wed., 19 Feb. 0.0293 0.0254 0.0276
19:01-20:00, Wed., 19 Feb. 0.0294 0.0257 0.0275
18:01-19:00, Wed., 19 Feb. 0.0291 0.0252 0.0273
17:01-18:00, Wed., 19 Feb. 0.0297 0.0254 0.0274
16:01-17:00, Wed., 19 Feb. 0.0299 0.0250 0.0272
15:01-16:00, Wed., 19 Feb. 0.0303 0.0249 0.0274
14:01-15:00, Wed., 19 Feb. 0.0295 0.0257 0.0274
13:01-14:00, Wed., 19 Feb. 0.0291 0.0258 0.0276
12:01-13:00, Wed., 19 Feb. 0.0292 0.0259 0.0275
11:01-12:00, Wed., 19 Feb. 0.0295 0.0257 0.0275
10:01-11:00, Wed., 19 Feb. 0.0295 0.0258 0.0276
09:01-10:00, Wed., 19 Feb. 0.0291 0.0257 0.0275
08:01-09:00, Wed., 19 Feb. 0.0292 0.0261 0.0277
07:01-08:00, Wed., 19 Feb. 0.0304 0.0262 0.0288
06:01-07:00, Wed., 19 Feb. 0.0314 0.0275 0.0291
05:01-06:00, Wed., 19 Feb. 0.0313 0.0279 0.0296
04:01-05:00, Wed., 19 Feb. 0.0316 0.0278 0.0293
03:01-04:00, Wed., 19 Feb. 0.0314 0.0270 0.0295
02:01-03:00, Wed., 19 Feb. 0.0325 0.0280 0.0296
01:01-02:00, Wed., 19 Feb. 0.0313 0.0276 0.0292
00:01-01:00, Wed., 19 Feb. 0.0300 0.0268 0.0283
23:01-24:00, Tue., 18 Feb. 0.0299 0.0259 0.0282
22:01-23:00, Tue., 18 Feb. 0.0299 0.0265 0.0280
21:01-22:00, Tue., 18 Feb. 0.0296 0.0265 0.0281
20:01-21:00, Tue., 18 Feb. 0.0304 0.0261 0.0282
19:01-20:00, Tue., 18 Feb. 0.0296 0.0265 0.0282
18:01-19:00, Tue., 18 Feb. 0.0302 0.0261 0.0282
17:01-18:00, Tue., 18 Feb. 0.0300 0.0267 0.0284
16:01-17:00, Tue., 18 Feb. 0.0300 0.0258 0.0281
15:01-16:00, Tue., 18 Feb. 0.0304 0.0263 0.0285
14:01-15:00, Tue., 18 Feb. 0.0303 0.0262 0.0284
13:01-14:00, Tue., 18 Feb. 0.0303 0.0268 0.0284
12:01-13:00, Tue., 18 Feb. 0.0306 0.0266 0.0286
11:01-12:00, Tue., 18 Feb. 0.0306 0.0266 0.0282
10:01-11:00, Tue., 18 Feb. 0.0302 0.0266 0.0282
09:01-10:00, Tue., 18 Feb. 0.0299 0.0264 0.0283
08:01-09:00, Tue., 18 Feb. 0.0299 0.0266 0.0284
07:01-08:00, Tue., 18 Feb. 0.0303 0.0266 0.0282
06:01-07:00, Tue., 18 Feb. 0.0299 0.0259 0.0280
05:01-06:00, Tue., 18 Feb. 0.0298 0.0264 0.0279
04:01-05:00, Tue., 18 Feb. 0.0300 0.0261 0.0282
03:01-04:00, Tue., 18 Feb. 0.0299 0.0262 0.0279
02:01-03:00, Tue., 18 Feb. 0.0303 0.0261 0.0281
01:01-02:00, Tue., 18 Feb. 0.0304 0.0255 0.0280
00:01-01:00, Tue., 18 Feb. 0.0298 0.0261 0.0280
23:01-24:00, Mon., 17 Feb. 0.0304 0.0258 0.0279
22:01-23:00, Mon., 17 Feb. 0.0297 0.0254 0.0278
21:01-22:00, Mon., 17 Feb. 0.0307 0.0265 0.0282
20:01-21:00, Mon., 17 Feb. 0.0298 0.0265 0.0282
19:01-20:00, Mon., 17 Feb. 0.0300 0.0267 0.0278
18:01-19:00, Mon., 17 Feb. 0.0299 0.0256 0.0279
17:01-18:00, Mon., 17 Feb. 0.0294 0.0260 0.0278
16:01-17:00, Mon., 17 Feb. 0.0295 0.0260 0.0277
15:01-16:00, Mon., 17 Feb. 0.0305 0.0264 0.0281
14:01-15:00, Mon., 17 Feb. 0.0304 0.0267 0.0284
13:01-14:00, Mon., 17 Feb. 0.0305 0.0270 0.0286
12:01-13:00, Mon., 17 Feb. 0.0307 0.0266 0.0284
11:01-12:00, Mon., 17 Feb. 0.0302 0.0264 0.0287
10:01-11:00, Mon., 17 Feb. 0.0313 0.0269 0.0288
09:01-10:00, Mon., 17 Feb. 0.0321 0.0271 0.0292
08:01-09:00, Mon., 17 Feb. 0.0309 0.0270 0.0290
07:01-08:00, Mon., 17 Feb. 0.0308 0.0263 0.0287
06:01-07:00, Mon., 17 Feb. 0.0298 0.0263 0.0282
05:01-06:00, Mon., 17 Feb. 0.0306 0.0261 0.0283
04:01-05:00, Mon., 17 Feb. 0.0305 0.0257 0.0283
03:01-04:00, Mon., 17 Feb. 0.0305 0.0269 0.0284
02:01-03:00, Mon., 17 Feb. 0.0308 0.0267 0.0287
01:01-02:00, Mon., 17 Feb. 0.0304 0.0269 0.0288
00:01-01:00, Mon., 17 Feb. 0.0319 0.0278 0.0293