Table 2.
Results of WBC screening conducted at Hirata Central Hospital from Oct., 2011 through Nov., 2012. Columns 2–4 are for all subjects, and columns 5–7 are for children age 15 and under only. The numbers of people whose body burden of 137Cs exceeded the detection limit of 300 Bq/body are shown in columns 3 and 6, and their percentages in columns 4 and 7
| Month, Year | All | Children (age ≤ 15) | ||||
|---|---|---|---|---|---|---|
| n | ndet (137Cs) | ndet/n (%) | n | ndet (137Cs) | ndet/n (%) | |
| Total | 32,811 | 1,552 | 4.7 | 19,530 | 499 | 2.6 |
| Oct., 2011 | 638 | 76 | 12.0 | 312 | 33 | 10.6 |
| Nov., 2011 | 2,258 | 327 | 15.0 | 970 | 85 | 8.8 |
| Dec., 2011 | 2,338 | 352 | 15.0 | 1,456 | 133 | 9.1 |
| Jan., 2012 | 2,843 | 341 | 12.0 | 1,665 | 123 | 7.4 |
| Feb., 2012 | 2,949 | 244 | 8.3 | 1,907 | 113 | 5.9 |
| subtotal | ||||||
| ∑Oct.,2011Feb.,2012 | 11,026 | 1,340 | 12.1 | 6,310 | 487 | 7.7 |
| Mar., 2012 | 3,572 | 113 | 3.2 | 1,821 | 9 | 0.5 |
| Apr., 2012 | 3,043 | 44 | 1.4 | 1,162 | 3 | 0.3 |
| May, 2012 | 1,056 | 13 | 1.2 | 321 | 0 | 0.0 |
| Jun., 2012 | 1,776 | 13 | 0.7 | 1,079 | 0 | 0.0 |
| Jul., 2012 | 2,325 | 6 | 0.3 | 1,236 | 0 | 0.0 |
| Aug., 2012 | 1,979 | 10 | 0.5 | 1,223 | 0 | 0.0 |
| Sep., 2012 | 2,416 | 1 | 0.0 | 1,804 | 0 | 0.0 |
| Oct., 2012 | 3,237 | 1 | 0.0 | 2,736 | 0 | 0.0 |
| Nov., 2012 | 2,381 | 11 | 0.5 | 1,838 | 0 | 0.0 |
| subtotal | ||||||
| ∑Mar.,2012Nov.,2012 | 21,785 | 212 | 1.0 | 13,220 | 12 | 0.09 |