Air Concentration Summaries from

Environmental Surveillance Reports

Los Alamos Airport

------------------------------------------------------

Calendar
Total Air
Total #
# Samples
Air Concentrations

Year
Volume (m3)
Samples
< MDA
------------------------------------------------------

Min
Max
Mean Std.Dev. Units

====================================================================================================

1999 4
4
0
2.9
1.7
1.4
aCi/m3

2000 4
3
0.5
3.6
1.8
1.4
aCi/m3

U

1971B 7
300
150
80
pg/m3

1972 80
60
pg/m3

1973 100
100
40
pg/m3

1974 150
80
20
pg/m3

1975 23
69
36
4
pg/m3

1976 104319
4
40
68
49
8
pg/m3

1977 100722
4
50
162
110
123
pg/m3

1978 92171
4
37
107
73
133
pg/m3

1979 95359
4
45
179
88
94
pg/m3

1980 93689
4
1
14
221
97
88
pg/m3

1981 55406
4
1
16
64
42
23
pg/m3

1982 93687
4
1
11
240
112
100
pg/m3

1983 91518
4
12
64
41
23
pg/m3

1984 84811
4
18
136
64
55
pg/m3

1985 78555
4
26.4
67.4
42
17.9
pg/m3

1986 93782
4
24
41.1
31.5
7.7
pg/m3

1987 93632
4
35.4
69.8
50.1
16.6
pg/m3

1988 66914
4
78.7
193.6
112.2
54.5
pg/m3

1989 74148
4
59
92.9
75.6
18.5
pg/m3

1990 84295.1
4
32.7
63.2
43.6
13.5
pg/m3

1991 43065
2
81.1
89.5
85.3
pg/m3

1992 77457
4
39.2
158.3
91.4
24.4
pg/m3

=====================================================================================================

Tuesday, December 24, 2002 Page 7 of 8
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