Measurement results by the hour (Chofu) 10 Feb., 2014 - 16 Feb., 2014

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 Feb. 0.0259 0.0227 0.0245
22:01-23:00, Sun., 16 Feb. 0.0261 0.0229 0.0242
21:01-22:00, Sun., 16 Feb. 0.0257 0.0226 0.0242
20:01-21:00, Sun., 16 Feb. 0.0255 0.0222 0.0237
19:01-20:00, Sun., 16 Feb. 0.0257 0.0219 0.0238
18:01-19:00, Sun., 16 Feb. 0.0253 0.0216 0.0237
17:01-18:00, Sun., 16 Feb. 0.0249 0.0214 0.0235
16:01-17:00, Sun., 16 Feb. 0.0249 0.0216 0.0232
15:01-16:00, Sun., 16 Feb. 0.0246 0.0209 0.0228
14:01-15:00, Sun., 16 Feb. 0.0240 0.0202 0.0224
13:01-14:00, Sun., 16 Feb. 0.0239 0.0204 0.0218
12:01-13:00, Sun., 16 Feb. 0.0232 0.0200 0.0212
11:01-12:00, Sun., 16 Feb. 0.0231 0.0195 0.0210
10:01-11:00, Sun., 16 Feb. 0.0223 0.0187 0.0207
09:01-10:00, Sun., 16 Feb. 0.0218 0.0194 0.0206
08:01-09:00, Sun., 16 Feb. 0.0223 0.0185 0.0204
07:01-08:00, Sun., 16 Feb. 0.0216 0.0179 0.0201
06:01-07:00, Sun., 16 Feb. 0.0222 0.0194 0.0204
05:01-06:00, Sun., 16 Feb. 0.0218 0.0187 0.0203
04:01-05:00, Sun., 16 Feb. 0.0219 0.0189 0.0202
03:01-04:00, Sun., 16 Feb. 0.0231 0.0183 0.0200
02:01-03:00, Sun., 16 Feb. 0.0211 0.0183 0.0197
01:01-02:00, Sun., 16 Feb. 0.0216 0.0185 0.0199
00:01-01:00, Sun., 16 Feb. 0.0218 0.0185 0.0198
23:01-24:00, Sat., 15 Feb. 0.0217 0.0184 0.0199
22:01-23:00, Sat., 15 Feb. 0.0218 0.0182 0.0197
21:01-22:00, Sat., 15 Feb. 0.0215 0.0183 0.0198
20:01-21:00, Sat., 15 Feb. 0.0208 0.0183 0.0194
19:01-20:00, Sat., 15 Feb. 0.0215 0.0182 0.0195
18:01-19:00, Sat., 15 Feb. 0.0220 0.0191 0.0205
17:01-18:00, Sat., 15 Feb. 0.0225 0.0187 0.0208
16:01-17:00, Sat., 15 Feb. 0.0208 0.0178 0.0189
15:01-16:00, Sat., 15 Feb. 0.0199 0.0176 0.0185
14:01-15:00, Sat., 15 Feb. 0.0195 0.0172 0.0181
13:01-14:00, Sat., 15 Feb. 0.0196 0.0165 0.0180
12:01-13:00, Sat., 15 Feb. 0.0190 0.0164 0.0177
11:01-12:00, Sat., 15 Feb. 0.0214 0.0173 0.0190
10:01-11:00, Sat., 15 Feb. 0.0270 0.0195 0.0233
09:01-10:00, Sat., 15 Feb. 0.0317 0.0257 0.0289
08:01-09:00, Sat., 15 Feb. 0.0320 0.0275 0.0295
07:01-08:00, Sat., 15 Feb. 0.0303 0.0259 0.0279
06:01-07:00, Sat., 15 Feb. 0.0316 0.0278 0.0293
05:01-06:00, Sat., 15 Feb. 0.0324 0.0280 0.0305
04:01-05:00, Sat., 15 Feb. 0.0328 0.0283 0.0304
03:01-04:00, Sat., 15 Feb. 0.0340 0.0292 0.0314
02:01-03:00, Sat., 15 Feb. 0.0366 0.0325 0.0345
01:01-02:00, Sat., 15 Feb. 0.0368 0.0306 0.0333
00:01-01:00, Sat., 15 Feb. 0.0348 0.0305 0.0323
23:01-24:00, Fri., 14 Feb. 0.0355 0.0303 0.0327
22:01-23:00, Fri., 14 Feb. 0.0379 0.0321 0.0342
21:01-22:00, Fri., 14 Feb. 0.0390 0.0332 0.0352
20:01-21:00, Fri., 14 Feb. 0.0390 0.0336 0.0362
19:01-20:00, Fri., 14 Feb. 0.0406 0.0347 0.0370
18:01-19:00, Fri., 14 Feb. 0.0400 0.0346 0.0369
17:01-18:00, Fri., 14 Feb. 0.0423 0.0361 0.0386
16:01-17:00, Fri., 14 Feb. 0.0429 0.0358 0.0388
15:01-16:00, Fri., 14 Feb. 0.0422 0.0360 0.0385
14:01-15:00, Fri., 14 Feb. 0.0400 0.0348 0.0368
13:01-14:00, Fri., 14 Feb. 0.0414 0.0352 0.0374
12:01-13:00, Fri., 14 Feb. 0.0414 0.0349 0.0367
11:01-12:00, Fri., 14 Feb. 0.0385 0.0337 0.0359
10:01-11:00, Fri., 14 Feb. 0.0389 0.0347 0.0363
09:01-10:00, Fri., 14 Feb. 0.0412 0.0335 0.0357
08:01-09:00, Fri., 14 Feb. 0.0386 0.0337 0.0357
07:01-08:00, Fri., 14 Feb. 0.0389 0.0331 0.0357
06:01-07:00, Fri., 14 Feb. 0.0367 0.0320 0.0346
05:01-06:00, Fri., 14 Feb. 0.0352 0.0305 0.0331
04:01-05:00, Fri., 14 Feb. 0.0337 0.0300 0.0316
03:01-04:00, Fri., 14 Feb. 0.0334 0.0291 0.0313
02:01-03:00, Fri., 14 Feb. 0.0334 0.0294 0.0313
01:01-02:00, Fri., 14 Feb. 0.0335 0.0295 0.0314
00:01-01:00, Fri., 14 Feb. 0.0339 0.0300 0.0313
23:01-24:00, Thu., 13 Feb. 0.0331 0.0291 0.0312
22:01-23:00, Thu., 13 Feb. 0.0333 0.0294 0.0312
21:01-22:00, Thu., 13 Feb. 0.0329 0.0288 0.0310
20:01-21:00, Thu., 13 Feb. 0.0329 0.0290 0.0310
19:01-20:00, Thu., 13 Feb. 0.0334 0.0297 0.0313
18:01-19:00, Thu., 13 Feb. 0.0327 0.0296 0.0311
17:01-18:00, Thu., 13 Feb. 0.0334 0.0296 0.0311
16:01-17:00, Thu., 13 Feb. 0.0327 0.0293 0.0311
15:01-16:00, Thu., 13 Feb. 0.0328 0.0290 0.0311
14:01-15:00, Thu., 13 Feb. 0.0325 0.0287 0.0307
13:01-14:00, Thu., 13 Feb. 0.0333 0.0289 0.0309
12:01-13:00, Thu., 13 Feb. 0.0335 0.0291 0.0307
11:01-12:00, Thu., 13 Feb. 0.0322 0.0287 0.0304
10:01-11:00, Thu., 13 Feb. 0.0332 0.0285 0.0306
09:01-10:00, Thu., 13 Feb. 0.0350 0.0290 0.0313
08:01-09:00, Thu., 13 Feb. 0.0350 0.0315 0.0330
07:01-08:00, Thu., 13 Feb. 0.0355 0.0307 0.0331
06:01-07:00, Thu., 13 Feb. 0.0350 0.0311 0.0330
05:01-06:00, Thu., 13 Feb. 0.0346 0.0299 0.0327
04:01-05:00, Thu., 13 Feb. 0.0344 0.0298 0.0324
03:01-04:00, Thu., 13 Feb. 0.0346 0.0299 0.0322
02:01-03:00, Thu., 13 Feb. 0.0334 0.0292 0.0314
01:01-02:00, Thu., 13 Feb. 0.0336 0.0290 0.0308
00:01-01:00, Thu., 13 Feb. 0.0324 0.0282 0.0304
23:01-24:00, Wed., 12 Feb. 0.0320 0.0289 0.0303
22:01-23:00, Wed., 12 Feb. 0.0328 0.0282 0.0302
21:01-22:00, Wed., 12 Feb. 0.0313 0.0285 0.0300
20:01-21:00, Wed., 12 Feb. 0.0319 0.0275 0.0303
19:01-20:00, Wed., 12 Feb. 0.0337 0.0285 0.0302
18:01-19:00, Wed., 12 Feb. 0.0322 0.0275 0.0302
17:01-18:00, Wed., 12 Feb. 0.0316 0.0276 0.0301
16:01-17:00, Wed., 12 Feb. 0.0313 0.0282 0.0295
15:01-16:00, Wed., 12 Feb. 0.0327 0.0277 0.0297
14:01-15:00, Wed., 12 Feb. 0.0318 0.0261 0.0293
13:01-14:00, Wed., 12 Feb. 0.0315 0.0271 0.0291
12:01-13:00, Wed., 12 Feb. 0.0313 0.0273 0.0291
11:01-12:00, Wed., 12 Feb. 0.0306 0.0270 0.0287
10:01-11:00, Wed., 12 Feb. 0.0307 0.0262 0.0283
09:01-10:00, Wed., 12 Feb. 0.0306 0.0266 0.0283
08:01-09:00, Wed., 12 Feb. 0.0304 0.0259 0.0282
07:01-08:00, Wed., 12 Feb. 0.0304 0.0269 0.0285
06:01-07:00, Wed., 12 Feb. 0.0301 0.0265 0.0282
05:01-06:00, Wed., 12 Feb. 0.0301 0.0265 0.0281
04:01-05:00, Wed., 12 Feb. 0.0308 0.0259 0.0283
03:01-04:00, Wed., 12 Feb. 0.0299 0.0263 0.0281
02:01-03:00, Wed., 12 Feb. 0.0303 0.0259 0.0275
01:01-02:00, Wed., 12 Feb. 0.0295 0.0259 0.0277
00:01-01:00, Wed., 12 Feb. 0.0294 0.0263 0.0278
23:01-24:00, Tue., 11 Feb. 0.0293 0.0258 0.0278
22:01-23:00, Tue., 11 Feb. 0.0288 0.0257 0.0274
21:01-22:00, Tue., 11 Feb. 0.0291 0.0254 0.0275
20:01-21:00, Tue., 11 Feb. 0.0298 0.0258 0.0276
19:01-20:00, Tue., 11 Feb. 0.0293 0.0259 0.0275
18:01-19:00, Tue., 11 Feb. 0.0299 0.0251 0.0273
17:01-18:00, Tue., 11 Feb. 0.0296 0.0254 0.0272
16:01-17:00, Tue., 11 Feb. 0.0306 0.0258 0.0275
15:01-16:00, Tue., 11 Feb. 0.0295 0.0256 0.0274
14:01-15:00, Tue., 11 Feb. 0.0290 0.0261 0.0274
13:01-14:00, Tue., 11 Feb. 0.0293 0.0252 0.0274
12:01-13:00, Tue., 11 Feb. 0.0292 0.0259 0.0273
11:01-12:00, Tue., 11 Feb. 0.0289 0.0258 0.0272
10:01-11:00, Tue., 11 Feb. 0.0294 0.0254 0.0271
09:01-10:00, Tue., 11 Feb. 0.0289 0.0254 0.0270
08:01-09:00, Tue., 11 Feb. 0.0285 0.0247 0.0269
07:01-08:00, Tue., 11 Feb. 0.0299 0.0248 0.0269
06:01-07:00, Tue., 11 Feb. 0.0290 0.0248 0.0268
05:01-06:00, Tue., 11 Feb. 0.0286 0.0256 0.0268
04:01-05:00, Tue., 11 Feb. 0.0289 0.0249 0.0268
03:01-04:00, Tue., 11 Feb. 0.0289 0.0247 0.0268
02:01-03:00, Tue., 11 Feb. 0.0289 0.0255 0.0270
01:01-02:00, Tue., 11 Feb. 0.0282 0.0252 0.0268
00:01-01:00, Tue., 11 Feb. 0.0297 0.0255 0.0269
23:01-24:00, Mon., 10 Feb. 0.0295 0.0250 0.0267
22:01-23:00, Mon., 10 Feb. 0.0283 0.0240 0.0268
21:01-22:00, Mon., 10 Feb. 0.0286 0.0254 0.0267
20:01-21:00, Mon., 10 Feb. 0.0290 0.0248 0.0268
19:01-20:00, Mon., 10 Feb. 0.0288 0.0248 0.0265
18:01-19:00, Mon., 10 Feb. 0.0280 0.0251 0.0264
17:01-18:00, Mon., 10 Feb. 0.0283 0.0241 0.0261
16:01-17:00, Mon., 10 Feb. 0.0283 0.0240 0.0262
15:01-16:00, Mon., 10 Feb. 0.0277 0.0241 0.0258
14:01-15:00, Mon., 10 Feb. 0.0277 0.0240 0.0254
13:01-14:00, Mon., 10 Feb. 0.0268 0.0236 0.0255
12:01-13:00, Mon., 10 Feb. 0.0268 0.0235 0.0253
11:01-12:00, Mon., 10 Feb. 0.0266 0.0233 0.0251
10:01-11:00, Mon., 10 Feb. 0.0264 0.0233 0.0250
09:01-10:00, Mon., 10 Feb. 0.0271 0.0231 0.0249
08:01-09:00, Mon., 10 Feb. 0.0266 0.0236 0.0250
07:01-08:00, Mon., 10 Feb. 0.0269 0.0232 0.0251
06:01-07:00, Mon., 10 Feb. 0.0269 0.0230 0.0248
05:01-06:00, Mon., 10 Feb. 0.0268 0.0233 0.0247
04:01-05:00, Mon., 10 Feb. 0.0270 0.0231 0.0248
03:01-04:00, Mon., 10 Feb. 0.0260 0.0230 0.0247
02:01-03:00, Mon., 10 Feb. 0.0263 0.0228 0.0246
01:01-02:00, Mon., 10 Feb. 0.0263 0.0228 0.0246
00:01-01:00, Mon., 10 Feb. 0.0275 0.0230 0.0244