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Table 3 Affected population from 20 Kt surface detonation in 4 downtowns

From: Vulnerability of populations and the urban health care systems to nuclear weapon attack – examples from four American cities

Effect Type City
  Washington New York Chicago Atlanta
Combined Fallout and Thermal 188,430 1,649,587 614,535 182,717
Combined Fallout and Blast 223,570 1,733,983 637,033 207,025
All Thermal categories 39,641 140,701 79,451 36,256
All Fallout categories 172,819 1,592,968 554,048 160,224
All Blast categories 92,040 286,587 104,988 63,814
All Thermal categories 39,641 140,701 79,451 36,256
> 25 cal cm2 Zone 1,024 12,336 11,574 1,431
> 13–25 cal cm2 Zone 963 15,303 14,685 1,810
3rd Degree Burn Zone* 3,132 20,660 12,456 5,001
2nd Degree Burn Zone** 9,876 22,993 10,381 8,593
1st Degree Burn Zone 24,646 69,409 30355 19,421
All Fallout Categories where mortality > 0.5% 172,819 1,592,968 554,048 160,224
Mortality > 90% 80,386 429,172 252,538 46,579
   > 50–90% 14,851 145,123 52,182 11,632
   > 10–50% 28,335 358,922 85,807 43,970
   > 0.5–10% 49,247 661,177 163,521 58,043
All Blast categories over 1psi 92,040 286,587 104,988 63,814
> 20psi 902 8,616 4,222 961
10–20psi 658 10,056 9,799 1,342
3–10psi 9,194 46,515 33,410 12,949
2–3psi *** 22,532 55,126 23,360 15,278
1–2psi 58,754 166,274 34,197 33,284
  1. To take into account daytime populations near central business districts [26]
  2. * Add roughly 32–35,000 additional people within 3rd degree burn isoline
  3. ** Add roughly 53–60,000 additional people within 2nd degree burn isoline
  4. *** Add roughly 50,000 additional people within the 3psi isoline and 90,000 within the 2psi isoline.