15 14 Fig. 5 $r9° FALLOUT HISTORY, CHICAGO MILKSHED AREA — 3 VAI L 570 —/ (SOILS 43,4,6-9) o <3 TOTAL DEPOSITION, me $0°°/Mi?_ _ -_” 12 h L 7° DEPOSITION, CHICAGO RAINS AVAIL gr 70 pene . . geez Wm ees . 2askesgesge ez we 6 hele Fasgtes ° ged uw . eer a << a Fssbede 2 sete PG<RRVIHsekzagstrsePs<ReResrRozras ue se PsRRVwA SG °ZS 1953 1954 1955