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Concentration and Distribution of Polychlorinated Biphenyls in Soils of Moscowстатья
Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
- Авторы: Agapkina G.I., Efimenko E.S., Brodskiy E.S., Shelepchikov A.A., Feshin D.B.
- Журнал: Moscow University Soil Science Bulletin
- Том: 66
- Номер: 1
- Год издания: 2011
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 36
- Последняя страница: 41
- DOI: 10.3103/S014768741101008X
- Аннотация: The concentration of polychlorinated biphenyls (PCB) in the soils of Moscow has been determined by gas chromatography and high resolution mass spectrometry (GCHRMS). The total concentrations of 19 indicator and dioxinlike congeners, as well as PCBs in surface soils, are 2.85–60.62 μg/kg (the most contaminated sample was 4591.99 μg/kg). The average value, excluding the most contaminated sample,is 14.44 μg/kg, which is characteristic of residential areas of industrialized countries. This indicator varies insubstantially depending on the functional zone of the city. The toxicity equivalent of 12 dioxin-like PCBs in soils is 1.92 ng I-TEQ/kg on average and varies in a range from 0.15 to 334.12 ng ITEQ/kg. The fraction of PCBs in the total toxicity of dioxins and dioxinlike compounds in soil varieties is 16.7–85.4%. Keywords: soil pollution, urban ecosystem, polychlorinated biphenyls, contribution to dioxin toxicity equivalent.
- Добавил в систему: Агапкина Галина Ивановна