[Show abstract][Hide abstract] ABSTRACT: In this study, organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) levels were determined in 100 human milk samples from the city of Antalya. The levels of seven major PCB congeners; 28, 52, 101, 118, 138, 153, 180 and nine OCPs, α-HCH, β-HCH, γ-HCH, HCB, heptachlor epoxide, p.p'-DDT, p,p'-DDE, endosulfan-α and endosulfan-β were determined by gas chromatography with ECD detection. The levels of analyzed compounds were as follows: ΣPCBs 27.46 ± 11.58, ΣDDT 1,407 ± 123, and ΣBHC 160 ± 490 ng/g lipid wt.basis. PCB 153 and p,p'-DDE were the dominant contaminants. The results have been discussed and compared with similar studies from other regions of Turkey.
Full-text · Article · Feb 2011 · Bulletin of Environmental Contamination and Toxicology
[Show abstract][Hide abstract] ABSTRACT: Human breast milk offers the optimal nutrition for all infants and have been widely used in biomonitoring programs to assess human exposure to lipophylic environmental contaminants such as polychlorinated dibenzo-p-dioxins (PCDD), polychlorinated dibenzofurans (PCDF) and polychlorinated biphenyls (PCB). There are no previous reports from Turkey on chemically determined levels of PCDDs, PCDFs, and PCBs in human breast milk expressed as World Health Organization (WHO) toxic equivalents (TEQ). To get an overview of the levels of these contaminants in Turkish human milk, samples from 51 Turkish women living in the Ankara, Istanbul, Antalya, Kahramanmaraş, and Afyon provinces were analyzed by high resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS) throughout 2007. The mean concentrations of WHO(PCDD/F-)TEQ and WHO(PCB-)TEQ of all samples from the five regions were 7.5 and 3.1 pg g(-1) on a lipid basis, respectively. PCDD/F concentrations ranged between 0.78 and 29.3 pg WHO-TEQ g(-1) fat (1.7 and 36.2 pg WHO-TEQ g(-1) fat, respectively, including PCB). Of the five studied locations, the lowest levels of sigmaTEQs (PCDD/F+PCB) were found in the Afyon (6.8 pg WHO-TEQ g(-1) fat) and the highest in the Antalya (15.6 pg WHO-TEQ g(-1) fat) province. The results have been discussed in terms of regions and PCDD/F and PCBs for which analyses had been made. The mean levels of PCDD/Fs and PCBs in Turkish human milk are comparable to that found in other countries.