Depicting the historical pollution in a Pb–Zn mining/smelting site in Kabwe (Zambia) using tree rings
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 a...
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Gespeichert in:
| Autor*in: |
Baieta, Rafael [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021transfer abstract |
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| Übergeordnetes Werk: |
Enthalten in: Moving beyond the employee: The role of the organizational context in leader workplace aggression - Sharma, Payal Nangia ELSEVIER, 2017, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:181 ; year:2021 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.jafrearsci.2021.104246 |
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| 245 | 1 | 0 | |a Depicting the historical pollution in a Pb–Zn mining/smelting site in Kabwe (Zambia) using tree rings |
| 264 | 1 | |c 2021transfer abstract | |
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| 520 | |a 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 wind-blown 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. | ||
| 520 | |a 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 wind-blown 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. | ||
| 650 | 7 | |a Soils |2 Elsevier | |
| 650 | 7 | |a Pollution |2 Elsevier | |
| 650 | 7 | |a Lead |2 Elsevier | |
| 650 | 7 | |a Lead isotopes |2 Elsevier | |
| 650 | 7 | |a Carbon isotopes |2 Elsevier | |
| 700 | 1 | |a Mihaljevič, Martin |4 oth | |
| 700 | 1 | |a Ettler, Vojtěch |4 oth | |
| 700 | 1 | |a Vaněk, Aleš |4 oth | |
| 700 | 1 | |a Penížek, Vít |4 oth | |
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| 700 | 1 | |a Kříbek, Bohdan |4 oth | |
| 700 | 1 | |a Ježek, Josef |4 oth | |
| 700 | 1 | |a Svoboda, Miroslav |4 oth | |
| 700 | 1 | |a Sracek, Ondra |4 oth | |
| 700 | 1 | |a Nyambe, Imasiku |4 oth | |
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10.1016/j.jafrearsci.2021.104246 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001417.pica (DE-627)ELV054334624 (ELSEVIER)S1464-343X(21)00147-3 DE-627 ger DE-627 rakwb eng 300 330 360 VZ 85.05 bkl 85.06 bkl 89.52 bkl Baieta, Rafael verfasserin aut Depicting the historical pollution in a Pb–Zn mining/smelting site in Kabwe (Zambia) using tree rings 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 wind-blown 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. 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 wind-blown 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. Soils Elsevier Pollution Elsevier Lead Elsevier Lead isotopes Elsevier Carbon isotopes Elsevier Mihaljevič, Martin oth Ettler, Vojtěch oth Vaněk, Aleš oth Penížek, Vít oth Trubač, Jakub oth Kříbek, Bohdan oth Ježek, Josef oth Svoboda, Miroslav oth Sracek, Ondra oth Nyambe, Imasiku oth Enthalten in Elsevier Science Sharma, Payal Nangia ELSEVIER Moving beyond the employee: The role of the organizational context in leader workplace aggression 2017 Amsterdam [u.a.] (DE-627)ELV002200333 volume:181 year:2021 pages:0 https://doi.org/10.1016/j.jafrearsci.2021.104246 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 85.05 Betriebssoziologie Betriebspsychologie VZ 85.06 Unternehmensführung VZ 89.52 Politische Psychologie Politische Soziologie VZ AR 181 2021 0 |
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10.1016/j.jafrearsci.2021.104246 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001417.pica (DE-627)ELV054334624 (ELSEVIER)S1464-343X(21)00147-3 DE-627 ger DE-627 rakwb eng 300 330 360 VZ 85.05 bkl 85.06 bkl 89.52 bkl Baieta, Rafael verfasserin aut Depicting the historical pollution in a Pb–Zn mining/smelting site in Kabwe (Zambia) using tree rings 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 wind-blown 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. 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 wind-blown 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. Soils Elsevier Pollution Elsevier Lead Elsevier Lead isotopes Elsevier Carbon isotopes Elsevier Mihaljevič, Martin oth Ettler, Vojtěch oth Vaněk, Aleš oth Penížek, Vít oth Trubač, Jakub oth Kříbek, Bohdan oth Ježek, Josef oth Svoboda, Miroslav oth Sracek, Ondra oth Nyambe, Imasiku oth Enthalten in Elsevier Science Sharma, Payal Nangia ELSEVIER Moving beyond the employee: The role of the organizational context in leader workplace aggression 2017 Amsterdam [u.a.] (DE-627)ELV002200333 volume:181 year:2021 pages:0 https://doi.org/10.1016/j.jafrearsci.2021.104246 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 85.05 Betriebssoziologie Betriebspsychologie VZ 85.06 Unternehmensführung VZ 89.52 Politische Psychologie Politische Soziologie VZ AR 181 2021 0 |
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10.1016/j.jafrearsci.2021.104246 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001417.pica (DE-627)ELV054334624 (ELSEVIER)S1464-343X(21)00147-3 DE-627 ger DE-627 rakwb eng 300 330 360 VZ 85.05 bkl 85.06 bkl 89.52 bkl Baieta, Rafael verfasserin aut Depicting the historical pollution in a Pb–Zn mining/smelting site in Kabwe (Zambia) using tree rings 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 wind-blown 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. 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 wind-blown 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. Soils Elsevier Pollution Elsevier Lead Elsevier Lead isotopes Elsevier Carbon isotopes Elsevier Mihaljevič, Martin oth Ettler, Vojtěch oth Vaněk, Aleš oth Penížek, Vít oth Trubač, Jakub oth Kříbek, Bohdan oth Ježek, Josef oth Svoboda, Miroslav oth Sracek, Ondra oth Nyambe, Imasiku oth Enthalten in Elsevier Science Sharma, Payal Nangia ELSEVIER Moving beyond the employee: The role of the organizational context in leader workplace aggression 2017 Amsterdam [u.a.] (DE-627)ELV002200333 volume:181 year:2021 pages:0 https://doi.org/10.1016/j.jafrearsci.2021.104246 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 85.05 Betriebssoziologie Betriebspsychologie VZ 85.06 Unternehmensführung VZ 89.52 Politische Psychologie Politische Soziologie VZ AR 181 2021 0 |
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10.1016/j.jafrearsci.2021.104246 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001417.pica (DE-627)ELV054334624 (ELSEVIER)S1464-343X(21)00147-3 DE-627 ger DE-627 rakwb eng 300 330 360 VZ 85.05 bkl 85.06 bkl 89.52 bkl Baieta, Rafael verfasserin aut Depicting the historical pollution in a Pb–Zn mining/smelting site in Kabwe (Zambia) using tree rings 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 wind-blown 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. 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 wind-blown 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. Soils Elsevier Pollution Elsevier Lead Elsevier Lead isotopes Elsevier Carbon isotopes Elsevier Mihaljevič, Martin oth Ettler, Vojtěch oth Vaněk, Aleš oth Penížek, Vít oth Trubač, Jakub oth Kříbek, Bohdan oth Ježek, Josef oth Svoboda, Miroslav oth Sracek, Ondra oth Nyambe, Imasiku oth Enthalten in Elsevier Science Sharma, Payal Nangia ELSEVIER Moving beyond the employee: The role of the organizational context in leader workplace aggression 2017 Amsterdam [u.a.] (DE-627)ELV002200333 volume:181 year:2021 pages:0 https://doi.org/10.1016/j.jafrearsci.2021.104246 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 85.05 Betriebssoziologie Betriebspsychologie VZ 85.06 Unternehmensführung VZ 89.52 Politische Psychologie Politische Soziologie VZ AR 181 2021 0 |
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Depicting the historical pollution in a Pb–Zn mining/smelting site in Kabwe (Zambia) using tree rings |
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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 wind-blown 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. |
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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 wind-blown 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. |
| abstract_unstemmed |
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 wind-blown 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. |
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Depicting the historical pollution in a Pb–Zn mining/smelting site in Kabwe (Zambia) using tree rings |
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https://doi.org/10.1016/j.jafrearsci.2021.104246 |
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Mihaljevič, Martin Ettler, Vojtěch Vaněk, Aleš Penížek, Vít Trubač, Jakub Kříbek, Bohdan Ježek, Josef Svoboda, Miroslav Sracek, Ondra Nyambe, Imasiku |
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Mihaljevič, Martin Ettler, Vojtěch Vaněk, Aleš Penížek, Vít Trubač, Jakub Kříbek, Bohdan Ježek, Josef Svoboda, Miroslav Sracek, Ondra Nyambe, Imasiku |
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10.1016/j.jafrearsci.2021.104246 |
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2024-07-06T21:26:23.589Z |
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