peve its tbe radioustivicty of plankton at Rongelap Atoll,
(
1954-1986,
abscract
THiS paper brings tojether aviilable cata on the betu-activity
o§ RhanKTom a> Rengetap Siois ror the period 1954-15958 tneluding
the values of radioaetivity reported in UWFL-+2 and 42.
Values ure
piven omtne asn as well aus tne welt weignt basis, und arc shown to
fe more consistent on tie ash weight basis.
suite frommnets of Gifiverent mesh sive,
In a comparison of re-
no signiricant difference
appearai Im Jevels oi activity between fine and coarse mesh} plankTom Wels.
Cc
ye
Rates of deray ever a 2-5 yeux period are given for atout
3u gem.ies.
Tae Cebllaus in
at ls eunsiderod to nave contributed
Lé@ss Therm \Jlooth as muck ranioactivity as that of 154, and the
Wd
ISSEZ NOKT. Less Thenl/aoth thetor 1956.
The 195"-55 fallout
\
aFeclted Privmant ky the mortherr:, amd tne 1956 ani IGF fallouts,
the
gouFherm, Pex] of theafin.
ee
e
e
an
a: croducsion
Poaaius.. la Ronjrlup Logocn ftrse took up laise amounts of
Mel urttvivy from the fallout following Srivo detonation at Bikint
ALILL on ase 4,
1954.
sSinee tnen,
tne radioactivity nas declined
Wot ody recautively 3giigny acaitions trom tie two succeeding series
er tesmin lobo (Peawing) ana 1068 (Hardtaexk}.
of
Ll “heii,
Levi,
Since the writing
clankton ‘11s Leen collected four times,
July 1956 and
ant Maren snd August 1953.
96.