7942

• UCREFRP Catalog Number: 7942
• Author: Schmitt, C. J., et al.
• Title: National Pesticide Monitoring Program
• USFW Year: 1983.
• USFW - Doc Type: Organochlorine Residues in Freshwater Fish, 1976-79.
• Copyright Material: NO

Table 3. Statistical analysis of 35 interlaboratory cross-check samples for 1976-77 and 33 for 1978-79 (CNFRL = Columbia National Fisheries Research Laboratory;
check lab = a commercial laboratory for 1976-77 and the Great Lakes Fishery Research Laboratory for 1978-79).
Analysis of variance
Wet-weight residues Lipid-weight residues
Collection period Geometric mean Geometric mean Regressionb No. of positives
and residue
1976-77
Lipid (%)
p, p'-DDE
p,p'-DDD
p, p'-DDT
EDDTe
Aroclor 1254
Toxaphene
Endrin
Dieldrind
Heptachlore
a-BHC
cis-Chlordane
trans-Chlordane
cis-Nonachlor
trans-Nonachlor
-y-BHC
HCB
CNFRL Check lab Fa
CNFRL Check lab Fa
Slope Intercept r CNFRL Check lab
7.73 9.02 14.54 * * - 0.841 2.536** 0.811 35 35
0.36 0.34 0.17 3.57 2.80 4.21* 1.161 -0.062 0.965 34 34
0.13 0.11 0.16 1.49 1.10 1.35 0.096** 0.106** 0.159 31 29
0.10 0.05 3.47 0.77 0.28 9.37** 0.449** 0.007 0.698 24 5
0.54 0.50 0.28 5.54 4.31 2.42 0.839* 0.051 0.899 34 34
0.87 1.27 14.95** 7.07 10.66 6.84* 1.115 0.446 0.884 29 33
0.23 0.14 16.67** 3.42 0.33 29.90** 1.135 -0.435 0.700 20 2
0.02 0.02 0.48 0.19 0.18 0.33 2.565** -0.20* 0.862 33 12
0.10 0.12 0.26 0.76 0.76 0.07 0.637** 0.075 0.886 18 33
0.03 0.03 1.28 0.19 0.19 9.59** 1.488* -0.006 0.983 17 27
0.03 0.01 7.82** 0.39 0.09 15.45** 0.009** 0.009 0.002 30 7
1.43 1.10 0.98 0.95 0.63 10.23** 1.131 -0.023 0.926 31 19
0.05 0.07 4.84* 0.50 0.57 1.12 1.305 0.014 0.762 32 12
0.00 0.02 5.17* 0.00 0.17 9.32** - - - 15 0
0.00 0.05 7.94** 0.00 0.36 17.24** - 20 0
0.00 0.01 2.84 0.00 0.11 3.38 - - - 10 0
0.00 0.01 5.38* 0.00 0.15 5.67* - 11 0
1978-79
Lipid (%) 8.1 7.9 0.28 0.972 0.135 0.930 33 33
p,p'-DDE 0.30 0.31 0.18 2.84 2.80 0.02 1.199** -0.032 0.961 33 33
p,p'-DDD 0.13 0.10 6.77* 1.29 0.86 10.63** 0.720** 0.010 0.814 32 24
p,p'-DDT 0.06 0.05 0.30 0.43 0.29 2.80 0.877** 0.005 0.912 19 12
EDDTe 1.35 1.24 1.27 4.31 3.91 1.57 1.104 -0.050 0.957 33 33
Aroclor 1248 0.28 0.56 11.91** 1.53 4.74 19.74** 1.517 0.166 0.918 13 28
Aroclor 1254 0.65 0.32 45.79** 6.42 2.93 61.38** 0.476** -0.013 0.925 33 31
Aroclor 1260 0.50 0.33 26.12** 4.53 3.28 13.12** 0.548** 0.037 0.969 28 29
EPCBf 1.21 1.07 1.97 11.73 11.15 0.15 0.787 0.068 0.946 33 32
Dieldrind 0.07 0.06 1.50 0.58 0.45 2.16 0.590** 0.014 0.778 29 23
cis-Chlordane 0.07 0.05 1.72 0.77 0.49 5.16* 0.605** 0.011 0.486 31 12
trans-Chlordane 0.04 0.03 2.23 0.37 0.27 2.60 0.714** <0.001 0.661 25 12
aDegrees of freedom = 1,34 for 1976-77 and 1,32 for 1978-79; = P <_ 0.05; * * = P -< 0.01.
bSlope, intercept, and product-moment correlation coefficient (r) va lues for the equ ation: y = a + bx, where y = cross-ch eck value; x = original CN FRL value; a = intercept;
and b = slope. Significance levels in tests of the hypotheses a = 0.0 and b = 1.0: = P :s 0.05; * * = P 0.01.
eSum of p,p'-DDE, p,p'-DDD, and p,p'-DDT.
dIncludes aldrin.
eIncludes heptachlor epoxide.
m
fSee text for definition of total PCB used by each laboratory