Table 12a——Sr®* SURFACE AIR CONCENTRATION,
WASHINGTON, D.C.
(Analyses at University of Chicago)
Air filter samples provided by 1. H. Blifford, Naval Research Laboratory, Washington, D.C, Callections were made on Army Chemical Corps Type V filters,
200 sq in, area of heavy asbestos fiber composition,
Collection
No.
204D
204A
204B
130
514-P
204E
Volume,
Collection Period
Apr,
Oct.
Oct.
Oct,
Apr.
Apr.
cu ft x 1078
5—8, 1953
2—6, 1953
6-9, 1953
12-15, 1953
3—5, 1954
8-10, 1954
4.5
1.7
3.4
3.4
2.92
2.6
Sr**/10* cu ft,
dis /min
18.6 + 0.7
41.1 + 3.0
30.5 41.1
70 +12
9147
6,4 +4 0.2
204C
Apr. $—11, 1954
L.7
125 +5
204F
Apr. 10—12, 1954
3.4
258 +6
515-P
204G
Apr. 12—14, 1954
Apr. 15-17, 1954
1.95
3.7
65.5 + 4.6
11.0 + 0.5
204H3
Apr. 17-19, 1954
2,8
20.7 + 0.6
516-P
895-P
517-P
896-P
Apr.
May
May
May
3.0
2.33
2.76
2.59
32.2
210
31,3
120
518-P
897-P
519-P
May 24—26, 1954
May 28-30, 1954
June 1—3, 1954
2.61
3.80
2.90
216 +11
133 +7
68.3 + 4.1
898-P
899-P
June 14—17, 1954
dune 23—26, 1954
4.45
3.79
7946
5143
520-P
521-P
522-P
900-P
901-P
July
July
July
July
Aug,
1.88
2,56
3.66
2.95
5.41
470+ 2.4
73.5 + 5.2
48,.0+ 3.9
200 + 10
59 +5
$03-P
904-P
Aug, 28-29, 1954
Oct, 1-3, 1954
1.82
3.39
380 + 25
112 +7
905-P
906-P
Oct, 5-8, 1954
Oct. 16-18, 1954.
3.56
2.69
104 +6
198 + 14
902-P
29—May 1, 1954
5-7, 1954
11-13, 1954
17-19, 1954
16-17, 1954
24-26, 1954
26-29, 1954
30—Aug. 2, 1954
2—7, 1954
Aug. 7—9, 1954
* 2.92
+ 2.6
+ 12
+ 2.2
+7
210413
907-P
Oct, 26-28, 1954
2.26
251+ 17
401-P
908-P
909-P
Nov. 1-3, 1954
Nov. T—8, 1954
Nov. 15-16, 1954
2.9
1.15
1.28
12047
225 + 14
175 + 10
9$10-P
402-P
Nov. 22—25, 1954
Dec. 1—2, 1954
1.96
1.6
194 + il
103 + 4
411-P
Jan, 3—4, 1955
1,26
281+ 6
412-P
Feb. 5—6, 1955
L.7
12745
413-P
Feb, 10-12, 1955
2.9
241 +10
913-P
Feb. 17—18, 1955
1.51
191411
523-P
Feb. 22—23, 1955
1.41
202 +11
524-P
525-P
Mar, 3~—4, 1955
Mar. 7-8, 1955
1.76
1.54
270 + 13
394 + 20
526-P
Mar. 13—14, 1955
1.07
267 + 16
527-P
914-P
528-P
Mar. 16—17, 1955
Mar. 21—23, 1955
Mar, 22-23, 1955
1.62
2.27
1.74
310 +4 15
98 +7
393 + 20
529-P
Mar, 27—28, 1955
1.80
9445
773-P
Apr. 4-—5, 1955
1.32
844+4
774-P
Apr. 11-12, 1955
1.93
71.54 3.3
39