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Table 4.7   PCB residues (ng/g dry weight [soils]; wet weight [biological tissues]) in samples collected from central Viet Nam, January 1996 and November 1997 (in italics).
 
    Sample ID #          
District Commune Vietnam HCL Site Type Sample Type Aroclor 1242 Aroclor 1254 Aroclor 1260
Aluoi Son Thuy VN9629 125 exposed pig liver ND ND ND
Aluoi A So VN9642 171 exposed former airbase soil (0-10cm) ND 0.37 0.42
Aluoi A So VN9622 173 exposed former airbase soil (10-30cm) ND ND 2.5
Aluoi A So VN9646 198 exposed carp fat (Pond #1) ND ND ND
Aluoi A So - 97VN003 exposed manioc field soil (10-30cm) ND ND ND
Aluoi A So - 97VN015 exposed ploughed sweet potato field (10-30cm) ND ND ND
Dong Ha Dong Ha VN9645 277 exposed former airbase soil (0-10cm) ND 0.4 0.66
Dong Ha Dong Ha VN9630 279 exposed former airbase soil (10-30cm) ND 0.13 0.53
Con Cuong Chi Khe VN9636 320 reference farmer's field soil (0-10cm) ND ND ND
Con Cuong Chi Khe VN9624 322 reference farmer's field soil (10-30cm) ND ND ND
Con Cuong Con Cuong VN9641 300 reference pig liver ND ND ND
ND = Not detected.
NDR = Peak detected but did not meet quantification criteria.