ak o Sane, re fog . fe cod "3 ¢ 4 ? . calculated total uverage dose wae 0.00 roeni.en al Palmer, Alaska (October 1001 through September’1962), and the third highest was 1.63 roentgen for Salt Lake City, Utah (September 1061 through August 1962) - ey Because of the ynevenness of the iodine deposition near the Nevada Test Site itis possible thit ak oa wee small local areas might show vulugs 10 times or go yreater than a higher levels of iodine 181 than these existed in local areas tround the Nevada Test Site during periods of heavy (eating aa , tainties in their determination but are based on some observe: iodine 131 levels in milk samples. Theoretical calculations of the avernye for the general reyion. , ny It-ja‘alao probable that in the 1060s. “ me The above estimated doses to the thyrgid involve some uncer- thyruid doses have been attempted, based on other types of | . | ' . radiation monitoring such as collection of radioactive particu: Intex in the air or mensurements of radiation at three fort above the ground from deposited fallout. To date, all of theme niethods suffer severe uncertainties. These monitoring pro cedures, equipment and dati are useful for the purposes for which they were intended. The difficulty ia in attempting to uke one type to predict another in a quantitative way, Evaluation All of the ubuve caleulated thyroid radiation doses may be placed in perspective by reference tu quoting from a Natioun! Academy of Sciences report.” fi describipg the therapeutic use of iodine 19h in the trent ment of hyperthyrevidisn, the eeport stated: “Phere is no evidence at band, except for one doubtful care in a ehild, that any of the treatments t “panera b paths fur byperthyreidism: has produced wo thyroid cancer, althouph doves have raneed from @ few thousnnd rad bop ward Lo Therecan beeieumslaner: where levels of iodine UST te nilk eng be normere conmbrotiing Factor tian extern! PAM CNPP as 4 Na pe ae we, ad wy, » ee - time was at St. Louis, Mo., for the period of August 1157 through July 1968 The caleuluted averpge dose was 1.5 roentvens to infants’ thyroida based on the usual assumption of cach drinking onc titer of milk pur day —the dose to ani adult thyroid would be only about Yio us much. The next/highest wt te at ows milk by the Public Health Service national petwork (fig. 5) at any i , A eo The highest annual average value of iodine 131 measured in : PL yt A. Saet rn or ' wh AA Coreen . 4 ¢ ” co 4 _ : Teed aes aca Ele mnTagg: atnye ewePe Se, ip 1: 7 bss i a 2 . on ida Sin Si opi ap aim Kis S : a vigtbnds ; The Dato Pe *: ‘ i: er . “Hs o a ~ | i . : Riad 1Bee diffused und diluted ag had occurred fe Jarger buratg in the atmosphere. gay i