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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF AFRICAN EARTH SCIENCES

ISSN

1464-343X

e-ISSN

—

Svazek periodika

181

Číslo periodika v rámci svazku

SEP

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

"104246-1"-"104246-9"

Kód UT WoS článku

000660988700012

EID výsledku v databázi Scopus

2-s2.0-85106387812