Abstract
The current study was conducted to screen the PCB residues in blood serum of mothers residing in five districts of Punjab Province, Pakistan. The mean concentration of ∑34 PCB congeners was recorded 232.3 ng/g l.w. PCB homologs profile showed highest levels of Tetra-CBs (53%) followed by Penta-CBs (23%) and Hexa-CBs(11%), respectively. Spatial distribution of PCB homolog reflected the higher prevalence of lower chlorinated PCBs in urban population descending towards rural population. The mean TEQ concentration of eight dioxins like PCBs
was recorded as 0.03 ng/g l.w. Analysis of ∑34PCBs and socio-demographic parameters reflected significant results for milk intake. The study findings suggested a need for regulating the continuous intentional or unintentional releases of PCB into the environment to prevent human exposure.
Anber Naqv, Abdul Qadir, Adeel Mahmood, Iqra Aslam, Gan Zhang. (2017) Assessment of polychlorinated biphenyls (PCBs) in maternal blood serum from selected districts of Punjab, Pakistan , Punjab University Journal of Zoology, Volume 32, Issue 2.
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