150
RADIATION STANDARDS, INCLUDING FALLOUT
>
£
wm
—
mo
June
woo
a
a
Lfate Sk LOSERITHMIC
a COTFEL @ CebLh CO.
358 73
OE ESS
puc of Llodine 131
lodiue 131 Accumulated Levels aa a Percentage of FRC Ranges
DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE ~ PUBLIC HSALTH SERVICE
Division of Radiological Health
Radiation Surveillance Center
ton 25, B.C.
Sepe
Oct
Nov
Dee
Jan
1962
Feb
March
April May
June