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POPs monitoring in Mongolia: Core matrices
Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences (MAS), Peace Avenue, Bayanzurkh District, Ulaanbaatar, Mongolia.
Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences (MAS), Peace Avenue, Bayanzurkh District, Ulaanbaatar, Mongolia.
Örebro University, School of Science and Technology. (MTM Research Centre)ORCID iD: 0000-0003-1496-9245
2022 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 297, article id 134180Article in journal (Refereed) Published
Abstract [en]

Persistent organic pollutants (POPs) are of global concern due to their negative effects on humans and the environment, and globally are regulated in the Stockholm Convention on POPs. The present study had Mongolia as a partner in a multinational project funded and coordinated by the United Nations Environment Programme with the aim to monitor POPs in core media, including air (with passive samplers), water, and a pooled human milk sample. Project implementation and all sampling were undertaken by the Institute of Chemistry and Chemical Technology whereas POPs analysis was performed in laboratories abroad. Brominated and chlorinated POPs were analyzed by gas chromatography/mass spectrometry, perfluorinated compounds (PFAS) and isomers of hexabromocyclododecane (HBCD) by liquid chromatography/mass spectrometry. The monitoring results found very low concentrations of PFAS in river water. Toxic equivalents (TEQs) for PCDD/PCDF were low in air and in human samples but had a relatively higher presence of TEQ from dioxin-like PCB than in other countries. With respect to chlorinated POPs, drins, chlordanes, DDTs, heptachlors, and mirex were very low in air and human milk. Elevated levels were found for polychlorinated biphenyls (PCB), hexachlorobenzene, hexachlorocyclohexanes, pentachlorobenzene (PeCBz), and HBCD in air with extreme values for hexachlorobutadiene. The abundance of HCHs and HCB was confirmed in the human milk sample but not for PCB, PeCBz or HBCD. Short-chain chlorinated paraffins (170 ng/g lipid) were the highest among all human milk pools. It is recommended to continue POPs monitoring in the future, especially for those where high concentrations were found.

Place, publisher, year, edition, pages
Elsevier, 2022. Vol. 297, article id 134180
Keywords [en]
Stockholm Convention on Persistent Organic, Pollutants, Global monitoring plan (GMP), Passive air sampling, Water monitoring, Human breast milk
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:oru:diva-98148DOI: 10.1016/j.chemosphere.2022.134180ISI: 000781346300002PubMedID: 35276101Scopus ID: 2-s2.0-85125893071OAI: oai:DiVA.org:oru-98148DiVA, id: diva2:1645947
Note

Funding agencies:

UNEP/GEF 4894 4F32

Global Environment Facility (GEF)

Ministry of Environment and Tourism, Mongolia

Available from: 2022-03-21 Created: 2022-03-21 Last updated: 2022-05-03Bibliographically approved

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Fiedler, Heidelore

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