Journal
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
Volume 37, Issue 2, Pages 543-552Publisher
ELSEVIER
DOI: 10.1016/j.etap.2014.01.009
Keywords
PCB congeners; Organochlorine pesticides; Human milk; Croatia; TEQ
Funding
- Ministry of Science, Education and Sports, Croatia
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We analyzed 20 polychlorinated biphenyls (PCBs) and seven organochlorine pesticides (OCPs) in milk samples collected during 2009-2011 from primiparae living in two different regions in Croatia. p,p'-DDE is the dominant organochlorine pesticide. alpha-HCH/gamma-HCH and p,p'-DDE/p,p'-DDT ratios indicate that there is fresh input of gamma-HCH in investigated population on both locations, while this is not applicable to p,p'-DDT. The PCB profile was dominated by higher chlorinated congeners. Non-ortho PCB congeners which have the highest TEF values were not detected in any of individual samples. Toxic equivalents for mono-ortho substituted PCB congeners indicated higher exposure to toxic PCBs in Zadar, but estimated daily intakes for both locations indicate that infants consuming mother's milk are not at risk of adverse effects caused by PCBs and OCPs. Our study builds on the previous research of human milk samples collected in Zagreb and reveals that over 10-year period, levels of investigated organochlorine compounds decreased significantly. (C) 2014 Elsevier B.V. All rights reserved.
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