TABLE 1
STRONTIUM90 IN NEW YORK CITY FALLOUT
(Monthly Pot Collections )
Collection Period
from
to
mo Sr90/mi
2
Cumilative
sr89
mo S8r90/mi?
°
gr70
Precipitation
(inches)
==
_—
59 227 2 0.75
-o
0.0
1.20
eS2 ne
4052 2 0675
27
1.23 4 0.07
441.75 2 0675
13
34 2 eee
2.6, 2 0.75
18
April
1.52 2 0.4202)
417 2 0086
may
ra : Oe
6.80 2 0.86
x
3.25
J
et 2 ores
M85 20086
=D
2055
July
1.58 2 0.299)
50.13 20.91
282 564)
3.68
August
0.60 20.0542)
50.73 2 0.91
38 ¢ 789)
2.36
September
0.65 I 0.1162)
51.38 * 0.92
28 4 1(2)
October
1.06 2 .0633(2) 52h 20.97
12-31-57
2-1-5,
an
1998 January
February
March
°
~
0.94
84
+ 0.
2
0.06
16
«010.5 2 6(2)
3.79(6)
2.98(6)
3.19(6)
6,4,(6)
53 ¢ 15(2)
December
*
At midpoint of collection period.
3 The mean end standard error of four analyses.
2) See Footnote 1. Only two of four samples were analyzed for sr89,
Therefore this term represents an average ratio and standard deviation
of two Sr89/8r90 ratios.
(3) The mean and standard error of three analyses.
|
(4) Represents an average ratio and standard deviation of three sr°9/gr90
ratios.
(5) Represents an average ratio and standard deviation of four gr89/gr70
ratios.
(6) Replaces values previously reported in HASL-5l.
-~-