Depicting the historical pollution in a P-Zn mining/smelting site in Kabwe (Zambia) using tree rings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73608982" target="_blank" >RIV/61989592:15310/21:73608982 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S1464343X21001473" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1464343X21001473</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jafrearsci.2021.104246" target="_blank" >10.1016/j.jafrearsci.2021.104246</a>

Result language

angličtina

Original language name

Depicting the historical pollution in a P-Zn mining/smelting site in Kabwe (Zambia) using tree rings

Original language description

Historical Pb–Zn mining and smelting in Kabwe in Zambia have made it one of the most polluted cities in the world. Four soil profiles were collected around the smelter and in remote locations, and two pine trees (Pinus montezumae L.) were sampled for tree ring cores. These were analyzed for Pb, Zn and Cu contents and Pb isotopic ratio. Furthermore, the C isotopic composition of tree rings was also assessed. High concentrations of metals are present only in the top layers of soil and are higher in soils closer to the smelter (up to 16000 mg kg− 1 Pb; 14000 mg kg− 1 Zn; 600 mg kg− 1 Cu) compared to remote soils (up to 194 mg kg− 1 Pb; 438 mg kg− 1 Zn; 46 mg kg− 1 Cu). Metals are also present in trees and the one located furthest from the slag dump contains higher metal concentrations (up to 6.48 mg kg− 1 Pb; 10.6 mg kg− 1 Zn; 10.2 mg kg− 1 Cu), possibly due to the deposition of windblown particles. Results of a sequential extraction procedure (SEP) showed that metal contaminants are not available for tree root uptake and the above-ground processes must be more important. The Pb isotopic ratios of slags, tree rings, and topsoils average at 206Pb/207Pb = 1.15, corresponding to the signature of local ores and smelting slags, thus confirming that the mine and smelter are the main sources of contamination in the area. The results were compared to the historical records of smelter production. Tree ring Pb and Zn concentrations, δ13C and 206Pb/207Pb reveal linear dependence on production with different statistical significance.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF AFRICAN EARTH SCIENCES

ISSN

1464-343X

e-ISSN

—

Volume of the periodical

181

Issue of the periodical within the volume

SEP

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

"104246-1"-"104246-9"

UT code for WoS article

000660988700012

EID of the result in the Scopus database

2-s2.0-85106387812