oe
&
+9
Suetura, Y. and Kanazawa, T.
RADIOACTIVE FALLOUT COLLECTED IN TOKYO ON ROVEMBER
26,
1955. jpicorology
Geonusss2s.Zokve 7»
day.
Rain water and fallout samples taken in Tokyo
before and after the 22nd indicated the test had
produced a secondary fallout from sone previous
explcsion. Rain water of the 2lst and fallout of
the 29th had radioactive content of 13 days halflife; fallout of the 26th, rain of the 27th 3 days
half-life. Sample of the 26th consisted of 15 ng.
of sooty material giving nearly 2000 counts/min.
at that tine.
71.
Tajima, Eizo and Doke, Tadayoshi
RADIOACTIVE IN THE OPEN AIR. Kagaku(Science) 26,
124-9 (1956).
A review of radioactive dust.
72.
Tanidazawa, M. and Ishihara, T.
RADIOACTIVE ELEMENTS FOUND IN PLANTS CONTAMINATED
BY RADIOACTIVE RAIN. Radioisotopes(Jaran) 3,
no. 1, 21-2 (195%).
ashes obtained from contaminated trifolium repens,
astragalus sinicus, and rumex japonicus were studied.
The precipitate obtained by treating the acidic
solution of the ash with HoS followed by Fe ++ in
the presence of NH,
and NH,Cl contained Y, Sr, and
the rare eurth elements.
73
Thomas, Harold Allen
THE FU3LIC HeALTH IMFLICATIONS OF RADIOACTIVE FALL
OUT IX WATER SUPPLIES. Journs. Public
Nations
lisaiii
s n d ine
46, 1266-7 (1956).
Significant increases in radioactivity in Massachusetts streams occurred only when precipitation took
place through r dioactive air nasses.
During the
period fron Novenber 1951 to June 1953, there were
2k detonations, only five were followed by fallout
exter.sive erouglr to raise the radioactivity above
natural levels.
Tne caximum observed in any sample
was about 3 x 10°’ xicrocuries per ml. of total
beta activity at tnmree days after fission.
“1d-
MO ODTE
A large nuclear weapon test by Russia was reported
Novenber 23, 1955 as having occurred the previous
tet rapqeees ED FWP oe we
126-35 (1956).