Distribution of Chlorinated Hydrocarbon Pesticides and PCBs in the ...
Distribution of Chlorinated Hydrocarbon Pesticides and PCBs in the ...
Distribution of Chlorinated Hydrocarbon Pesticides and PCBs in the ...
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Table 3.9.<br />
Intercalibration <strong>of</strong> Organochlor<strong>in</strong>e residues <strong>in</strong> Snow;<br />
Comparison <strong>of</strong> Arctic Laboratories <strong>and</strong> National Water<br />
Quality Laboratory data from samples collected June 1987.<br />
Concentrations <strong>in</strong> Melted Snow (pg/L)<br />
Compound Arctic ~ a b s ~ N.W.Q.L. b<br />
mean sd mean . sd<br />
- -<br />
Aroclor 1254<br />
HCB<br />
heptachlor<br />
aldr<strong>in</strong><br />
o,pt-DDE<br />
p,pt-DDE<br />
Mirex<br />
alpha-HCH<br />
beta-HCH<br />
gamma-HCH<br />
oxychlordane<br />
trans-chlordane<br />
cis-chlordane<br />
p,pt-DDT<br />
heptachlor epoxide<br />
alpha-endosulphan<br />
dieldr<strong>in</strong><br />
endr<strong>in</strong><br />
methoxychlor<br />
3.60 260<br />
3.0 50<br />
3 20<br />
0.5 <strong>in</strong>t<br />
2.4 nd<br />
14 nd<br />
- nd<br />
160 140<br />
8.3 nm<br />
120 320<br />
4.7 nm<br />
15 8<br />
18 20<br />
26 20<br />
26 28<br />
58 1410<br />
55 50<br />
11 30<br />
26 90<br />
20<br />
30<br />
20<br />
<strong>in</strong>t<br />
-<br />
(a) Sum <strong>of</strong> dissolved (XAD) plus particulate components. Mean<br />
<strong>of</strong> three samples.<br />
(b) Prelim<strong>in</strong>ary data; melted snow not filtered prior to<br />
extraction. Mean <strong>of</strong> three samples.<br />
(6) nd = below NQWL detection limit.<br />
(d) \
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