PMID- 36520182 OWN - NLM STAT- MEDLINE DCOM- 20230216 LR - 20230216 IS - 1944-0057 (Electronic) IS - 1944-0057 (Linking) VI - 40 IP - 2 DP - 2023 Feb TI - First WHO/UNEP survey of the current concentrations of persistent organic pollutants in human milk in Morocco. PG - 282-293 LID - 10.1080/19440049.2022.2154852 [doi] AB - The presence of persistent organic pollutants (POPs) in human milk is an indicator of the level of these substances in the environment and enables evaluation of the potential exposure of breastfed children. POPs concentrations in a Moroccan human milk pooled sample (59 donors) were determined for the first time by the WHO reference laboratory to provide a baseline and allow monitoring of the future trends for those persistent organohalogen compounds. Eighty-one different POPs, including organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and dioxins and furans (PCDD/Fs) were identified and quantified by using gas chromatography (GC) with an electron capture detector (ECD) and confirmed by gas chromatography-mass spectrometry (GC/LRMS). The obtained results showed that the sum of DDT (sum of o,p'-DDD, p,p'-DDD, o,p'-DDE, p,p'-DDE, o,p'-DDT, and p,p'-DDT) was 237.9 ng/g, representing 94.0% of all detected OCPs levels, with a dominance of p,p'-DDE, and p,p'-DDT. Cis-heptachlor epoxide, HCB, and HCH were found at much lower levels. PCB indicator level was 60.7 ng/g of lipid, with the dominance of PCB 138, PCB 153, and PCB 180, presenting 98.3% of the total. Among the 25 PBDE congeners quantified, BDE-47, BDE-153, BDE-197, and BDE-207 were the dominant congeners account for 15.4% of the total concentration of PBDE (1.3 pg/g lipid). The lipid-adjusted level of PCDD/Fs and dl-PCBs expressed in Toxic Equivalents (TEQs: 6.65 pg/g) were lower in comparison to those found in the other countries. In summary, detected POPs levels in Moroccan human milk were much lower compared to the other countries, reflecting the effectiveness of the compliance with Stockholm Convention requirements on eliminating or reducing emissions of selected POPs. Continued monitoring is needed for these compounds, for which this is the first data available, provided by the WHO/UNEP survey in Morocco. FAU - Ait Lhaj, Farida AU - Ait Lhaj F AD - Laboratory of Nanomaterials, Nanotechnologies and Environment, Faculty of Sciences, Center of Materials, Mohammed V University, Rabat, Morocco. AD - Department of Toxicology, Health Ministry, National Institute of Health, Rabat, Morocco. FAU - Elhamri, Hecham AU - Elhamri H AD - Department of Toxicology, Health Ministry, National Institute of Health, Rabat, Morocco. FAU - Ait Lhaj, Zakaria AU - Ait Lhaj Z AD - Physiology and Physiopathology Team, Faculty of Sciences, Genomic of Human Pathologies Research Centre, Mohammed V University, Rabat, Morocco. FAU - Malisch, Rainer AU - Malisch R AD - State Institute for Chemical and Veterinary Analysis of Food (CVUA), Freiburg, Germany. FAU - Kypke, Karin AU - Kypke K AD - State Institute for Chemical and Veterinary Analysis of Food (CVUA), Freiburg, Germany. FAU - Kabriti, Mohamed AU - Kabriti M AD - Laboratory of Ecology and Environment, Faculty of Sciences Ben M'Sik, University Hassan II Casablanca, Morocco. FAU - El Hajjaji, Souad AU - El Hajjaji S AD - Laboratory of Molecular Spectroscopy Modelling, Materials, Nanomaterials, Water and Environment, Faculty of Science, Mohammed V University, Rabat, Morocco. FAU - Bellaouchou, Abdelkabir AU - Bellaouchou A AD - Laboratory of Nanomaterials, Nanotechnologies and Environment, Faculty of Sciences, Center of Materials, Mohammed V University, Rabat, Morocco. LA - eng PT - Journal Article DEP - 20221215 PL - England TA - Food Addit Contam Part A Chem Anal Control Expo Risk Assess JT - Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment JID - 101485040 RN - DFC2HB4I0K (Polychlorinated Biphenyls) RN - 7REL09ZX35 (pentabromodiphenyl ether) RN - D4K93Z1TBH (o,p'-DDT) RN - CIW5S16655 (DDT) RN - 0 (Persistent Organic Pollutants) RN - 4M7FS82U08 (Dichlorodiphenyl Dichloroethylene) RN - 0 (Dibenzofurans) RN - 0 (Polychlorinated Dibenzodioxins) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Environmental Pollutants) RN - 0 (Pesticides) RN - 0 (Lipids) SB - IM MH - Child MH - Humans MH - *Polychlorinated Biphenyls/analysis MH - DDT/analysis MH - Persistent Organic Pollutants MH - Milk, Human/chemistry MH - Dichlorodiphenyl Dichloroethylene/analysis MH - Morocco MH - Dibenzofurans/analysis MH - Environmental Monitoring MH - *Polychlorinated Dibenzodioxins/analysis MH - Gas Chromatography-Mass Spectrometry MH - *Hydrocarbons, Chlorinated/analysis MH - *Environmental Pollutants/analysis MH - *Pesticides/analysis MH - Lipids MH - World Health Organization OTO - NOTNLM OT - Human milk OT - Morocco OT - PCB OT - POPs OT - dioxins OT - furans EDAT- 2022/12/16 06:00 MHDA- 2023/02/17 06:00 CRDT- 2022/12/15 11:14 PHST- 2022/12/16 06:00 [pubmed] PHST- 2023/02/17 06:00 [medline] PHST- 2022/12/15 11:14 [entrez] AID - 10.1080/19440049.2022.2154852 [doi] PST - ppublish SO - Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2023 Feb;40(2):282-293. doi: 10.1080/19440049.2022.2154852. Epub 2022 Dec 15.