Air Concentration Summaries from |
Environmental Surveillance Reports |
TA-16 S-Site |
------------------------------------------------------ |
Calendar | Total Air | Total # | # Samples | Air Concentrations |
Year | Volume (m3) | Samples | < MDA | ------------------------------------------------------ |
Min | Max | Mean | Std.Dev. | Units |
==================================================================================================== |
Pu-239 |
1971B | 5 | 120 | 39 | 58 | aCi/m3 |
1972 | 76 | 36 | aCi/m3 |
1973 | 83 | 18 | 4 | aCi/m3 |
1974 | 114 | 29 | 3 | aCi/m3 |
1975 | 41 | 19 | 2 | aCi/m3 |
1976 | 95786 | 8 | 2 | 1.8 | 6.5 | 4.1 | 0.9 | aCi/m3 |
1977 | 70061 | 4 | 2.2 | 23 | 19 | 34 | aCi/m3 |
1978 | 94752 | 4 | 7.9 | 59 | 36 | 77 | aCi/m3 |
1979 | 99348 | 5 | 2 | 0.8 | 242 | 20 | 75 | aCi/m3 |
1980 | 71151 | 4 | 3 | -1.1 | 4.9 | 1.1 | 2.7 | aCi/m3 |
1981 | 48139 | 4 | 1 | 0.8 | 7.1 | 3.6 | 2.6 | aCi/m3 |
1982 | 87990 | 4 | 3 | -1.6 | 3.9 | 1 | 2.5 | aCi/m3 |
1983 | 79223 | 4 | 4 | 0 | 1.4 | 0.7 | 0.6 | aCi/m3 |
1984 | 82558 | 4 | 4 | -0.8 | 1.3 | 0 | 0.9 | aCi/m3 |
1985 | 101750 | 4 | 1.8 | 4 | 3 | 1 | aCi/m3 |
1985 | 101750 | 4 | 3 | -0.2 | 31.9 | 8 | 16 | aCi/m3 |
1986 | 100594 | 4 | 4 | 0.3 | 0.9 | 0.6 | 0.2 | aCi/m3 |
1987 | 103821 | 4 | 4 | 0.5 | 0.9 | 0.7 | 0.2 | aCi/m3 |
1988 | 64175 | 4 | 3 | -2.9 | 3.8 | 0.9 | 2.9 | aCi/m3 |
1989 | 63901 | 4 | 4 | 0.3 | 2.1 | 0.9 | 0.8 | aCi/m3 |
1990 | 76535 | 4 | 3 | 0.4 | 2.8 | 1.4 | 1.2 | aCi/m3 |
1991 | 101140 | 4 | 4 | -0.5 | 1.2 | 0.7 | 0.6 | aCi/m3 |
1992 | 47643 | 3 | 5.3 | 18.2 | 12.5 | 4.7 | aCi/m3 |
1995 | 4 | 3 | 0 | 3.5 | 1.2 | 3.2 | aCi/m3 |
===================================================================================================== |
Tuesday, December 24, 2002 | Page 6 of 8 |