Pesticides that partition and accumulate in adipose tissues such as organochlorines were poorly found in cord blood, infant hair or meconium. Although DDT was found in meconium, the frequency of detection was low (0.7%). The use therefore of cord blood, infant hair and meconium as matrices for the detection of fetal exposure to these compounds is a recognized limitation of the study. However, access to fetal or infant adipose tissue is normally not feasible; thus its diagnostic use in clinical settings may not be practical. On the other hand, failure to detect lipophilic pesticides from the analysis of non-adipose tissue matrices should not imply non-exposure to these types of pesticides. We did not include the analysis of infant’s urine due to inherent problems and difficulty associated with urine collection in infants. Besides, there are added limitations associated with the interpretation of urine results for pesticides particularly if only spot samples are collected (Barr and Needham, 2002). Cord blood also had an advantage over urine since parent pesticides are more readily detectable in blood compared to urine (Barr and Needham, 2002).