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Lead isotope ratios in urban surface deposited sediments as an indicator of urban geochemical transformation: Example of Russian citiesстатья
- Авторы: Seleznev A., Yarmoshenko I., Malinovsky G., Ilgasheva E., Chervyakovskaya M., Streletskaya M., Kiseleva D.
- Журнал: Applied Geochemistry
- Том: 137
- Год издания: 2022
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 105184
- DOI: 10.1016/j.apgeochem.2021.105184
- Аннотация: Lead isotope fingerprinting was applied to study pollution with lead of urban surface deposited sediments (USDS) in five large industrial Russian cities. Cities are characterized by various geological conditions, economic specialization and industries (ore processing, metallurgy and others). Totally 228 USDS samples were collected in the residential areas of Magnitogorsk (38), Nizhny Tagil (48), Tyumen (39), Ufa (43), and Chelyabinsk (60 samples). Applying the concept of initial geochemical baseline relationship between Pb and Fe in the USDS, the samples were divided into “unpolluted” and “polluted” with lead objects. The performed analysis of Pb isotopic ratios in contemporary USDS samples indicated different trends depending on the sources of pollution of the urban environment. The USDS samples are characterized by an overall decrease in the isotope ratios 206Pb/204Pb, 208Pb/204Pb, 206Pb/207Pb and 206Pb/208Pb as a result of soil pollution by motor vehicles during the period of using leaded gasoline. In old industrial regions, such as Nizhny Tagil, the variation in isotopic ratios shows significant deviation from the leaded gasoline caused trend due to using technogenic by-products of ferrous and non-ferrous metallurgy in the urban landscape construction.
- Добавил в систему: Селезнев Андриан Анатольевич