Journal
CHEMOSPHERE
Volume 148, Issue -, Pages 395-402Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2016.01.025
Keywords
Human health risk; Hazard quotient; Organochlorine pesticide; Goat milk
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The occurrence of organochlorine xenobiotics in goat milk is a one of bioindicators of environmental pollution, and, consequently, food contamination. This study estimates contamination level of goat milk produced at two organic farms in years 2009-2013. Analysis covered determination of 18 organochlorine pesticides, including HCH isomers (alpha, beta, gamma, delta), DDT and its metabolites, endosulfan and its derivatives, and methoxychlor. Pesticide content was determined using GCMS method. The detected levels of organochlorine residues in goat milk were low, in most cases below 8 ng g(-1) lipids. Among HCH isomers, gamma- and beta-HCH occurred in the highest concentrations, up to 4.85 ng g(-1) lipids. While among DDT metabolites p,p'-DDD dominated, up to 7.86 ng g(-1) lipids. The detected residues were below the current maximum residue limits (MRLs) for the pesticides. Considering the average milk consumption in Poland, the goat milk from both farms was safe for consumers' health. The lifetime average daily dose (LADD) for the sum of the compounds under study ranged within 1.73 x 10(-5)-1.06 x 10(-4) mg kg bw(-1) d(-1) and were well below the acceptable daily intake (ADI) for particular compounds. This was also confirmed by the values of hazard quotient (HQ), which were very low and ranged within 3.42 x 10(-3)-5.55 x 10(-2). (C) 2016 Elsevier Ltd. All rights reserved.
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