Also Called: PCB Aroclor 1242; Polychlorinated biphenyl (42% Cl); Chlorinated biphenyls; Chlorodiphenyl (42% Chlorine) [PCBs (42% Chlorine); PCB-1242];AROCLOR 1242;PCB 1254;polychlorobiphenyl;Chlorodiphenyl (42% chlorine);PCB (Aroclor) 1242;Polychlorinated biphenyls (PCBs);Arocolor 1242;POLYCHLORINATED BIPHENYLS;CHLORODIPHENYL (42% CHLORINE) (PCB);Chlorinated biphenyls (inhalable fraction)