“…For four pesticide analytes (trans-nonachlor, cis-nonachlor, o,p'-DDT, and mirex), four PCDF congeners (1,2,3,7,8-P 5 CDF, 1,2,3,7,8,9-H 6 CDF, 1,2,3,4,6,7,8-H 7 CDF, and 1,2,3,4,7,8,9-H 7 CDF), and three NDL-PCBs (28, 52, 101), fewer than 50% of the samples had levels above the limit of quantification (LOQ). Following Engel et al (2007), these compounds were not considered to minimize any distortion of exposure measurement due to high proportions of input values.…”