5h
VIII,
Air Concentration
Air filter samples provided by Mr, I, H. BUifford, Naval Research
Laboratory, ‘“fashinvton, D. C. Collections were made on army
Chemical Corps Type V filters of 200 square inches area and of
heavy asbestos fiber composition.
Aes
Sr?0 Surface Air Concentration, ashineton, D. C.
CL No.
Volune
Collection Period
(t3x10-$)
pet Sr90/10%re3
20D
April 5-8, 1953
4.5
18.6 + 0.7
20h
October 2-6, 1953
1.7
41.1 + 3.0
20)B
October 6-9, 1953
3.
30.5 + lel
130
October 12-15, 1953
3.
70 + 12
Sly-P
April 3-5, 1954
2.92
gl +7
20LE
ipril 6-10, 195)
2.6
6. + 0.2
204C
April 9-11, 195)
1.7
125+ 5
20F
April 10-12, 195)
3k
256 + 6
515-P
April 12-14, 196h
1.95
65.5 + L.6
20LG
April 15:-17, 195)
347
11.0 * 0,5
20H3
foril 17-19, 195)
20d
2067 + 0.6
516-P
apr. 29-Hay 1, 195)
3.0
32.2 + 2.6
095=P
Nay 5-7, 195k
2.33
210 + 12
517-P
Hay 11-13, 1954
2.76
31.3 + 202
896-P
May 17-19, 195)
2659
120 + 7
518={P
Mav 2h-26, 195)
2,61
216 + 11
897-P
May 28-30, 195)
3.80
133 + 7
519-P
June 1-3, 1954
2.90
65.3 + hel
890~P
June 14-17, 195h
4h5
79 + 6
899=-P
June 23-26, 1954
3.79 |
51+ 3
520-P
July 16-17, 195)
1.86
47.0 + 2h
521-P
July 24-25, 195)
2.56
73.5 + 5.2
.
NYO
35