Addendum
A NOTE ON THE VEGETATION
OF THE NORTHERN ISLETS OF RONGELAP ATOLL, MARSHALL ISLANDS, MARCH 1959
B.S. BLumMBeRG* AND 8.4. CONARD
and to re-examine the vegetation. A helicopter
wasavailable for transportation, which permitted
general and detailed air examination as well as
two short ground surveys. The northern islets were
estimated to have received a radiation dose ol
= 3000 r. Theislets of Naen and Gegen wereexamined in greatest detail. The most striking feature observed from the air was the generally gray
color of much of the vegetation, in contrast toits
Fosberg'* reported changes in the vegetation of
the northern islets of Rongelap Atoll (observed in
1956) which he inferred might have been associated with the radioactive fallout that occurred on
this atoll in 1954. During the medical survey of
the Rongelap people’ carried out in March 1959,
an opportunity arose to visit some of these islets
“National Institutes of Health, Bethesda, Maryland.
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