title: Polychlorinated biphenyls in surface soil in urban and background areas of Mongolia.
abstract: Polychlorinated biphenyls (PCBs) were measured in soil in some industrial towns (Ulaanbaatar, Suhbaatar, Erdenet, Darhan, Tsetserleg, Hovd, Ulaangom, Altay, Bayanhongor, Arvayheer, Saynshand, Choybalsan) and in background and rural areas of Mongolia. The average sum of all investigated PCB congeners in soil of Mongolia comes to 7.4 ng/g dry weight (DW) and varies from 0.53 ng/g DW till 114 ng/g DW. PCB levels in soil from towns are significantly higher than those in soil from background and rural areas. The PCB homological composition in soil sampled in highly-PCB-polluted sites is similar to the PCB homological pattern in Sovol and Aroclor 1254. Significant correlation between soil organic carbon and low chlorinated PCB both for towns and background sites was found. Significant differences in PCB means in soil in different natural zones were found.
authors.affiliation: A.P. Vinogradov Institute of Geochemistry, Siberian Branch of Russian Academy of Science, Favorsky Str. 1A, P.O. Box 421, Irkutsk 664033, Russia. Electronic address: elenam@igc.irk.ru.
authors.forename: Elena A
authors.initials: EA
authors.lastname: Mamontova
authors.forename: Alexander A
authors.initials: AA
authors.lastname: Mamontov
authors.forename: Eugenia N
authors.initials: EN
authors.lastname: Tarasova
authors.forename: Mikhail I
authors.initials: MI
authors.lastname: Kuzmin
authors.forename: Darmaa
authors.initials: D
authors.lastname: Ganchimeg
authors.forename: Marina Yu
authors.initials: MY
authors.lastname: Khomutova
authors.forename: Odontuya
authors.initials: O
authors.lastname: Gombosuren
authors.forename: Erdenebayasgalan
authors.initials: E
authors.lastname: Ganjuurjav
mesh_terms: D004784:Environmental Monitoring; D004787:Environmental Pollution / Q000706:statistics & numerical data; D008986:Mongolia; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D011078:Polychlorinated Biphenyls
keywords: Mongolia; PCB; Surface soil