Impact of 70 years urban growth associated with heavy metal pollution
Historical trends in trace element deposition were analyzed using herbaria specimens. We determined Al, Fe, Mg, Mn, Ca, Na, P, K, S, As, Cd, Cr, Cu, Ni, Pb and Zn contents in leaves of eight specimens collected in 1941. To assess changes, we collected the same plants from a botanical garden in 2012. The concentrations of major elements showed large species variability. However, temporal trends were predominately detected for heavy metals. The Cd, Ni and Cr contents in the 2012 leaves were 10, 13 and 16 times higher, respectively, than in 1941. Urban activities have substantially raised the levels of these metals in urban atmospheres due to changes in human activities over 70 years of urban growth. Nevertheless, Pb has decreased (−126%) in recent decades thanks to controlled lead fuel combustion. In short, metal deposition trend to increase Cr, Ni and Cd levels. © 2014 Elsevier Ltd
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2015
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Subjects: | Retrospective analysis, Trace elements, Urban environment, Airborne pollution, Botanical garden, Herbarium specimens, |
Online Access: | http://hdl.handle.net/20.500.12792/3801 http://hdl.handle.net/10261/291495 |
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dig-inia-es-10261-2914952023-02-20T07:18:48Z Impact of 70 years urban growth associated with heavy metal pollution Rodríguez Martín, José Antonio De Arana, C. Ramos-Miras, J. J. Gil, C. Boluda, R. Retrospective analysis Trace elements Urban environment Airborne pollution Botanical garden Herbarium specimens Historical trends in trace element deposition were analyzed using herbaria specimens. We determined Al, Fe, Mg, Mn, Ca, Na, P, K, S, As, Cd, Cr, Cu, Ni, Pb and Zn contents in leaves of eight specimens collected in 1941. To assess changes, we collected the same plants from a botanical garden in 2012. The concentrations of major elements showed large species variability. However, temporal trends were predominately detected for heavy metals. The Cd, Ni and Cr contents in the 2012 leaves were 10, 13 and 16 times higher, respectively, than in 1941. Urban activities have substantially raised the levels of these metals in urban atmospheres due to changes in human activities over 70 years of urban growth. Nevertheless, Pb has decreased (−126%) in recent decades thanks to controlled lead fuel combustion. In short, metal deposition trend to increase Cr, Ni and Cd levels. © 2014 Elsevier Ltd 2023-02-20T07:18:48Z 2023-02-20T07:18:48Z 2015 artículo Environmental Pollution 196: 156-163 (2015) 0269-7491 http://hdl.handle.net/20.500.12792/3801 http://hdl.handle.net/10261/291495 10.1016/j.envpol.2014.10.014 1873-6424 en none Elsevier |
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Retrospective analysis Trace elements Urban environment Airborne pollution Botanical garden Herbarium specimens Retrospective analysis Trace elements Urban environment Airborne pollution Botanical garden Herbarium specimens |
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Retrospective analysis Trace elements Urban environment Airborne pollution Botanical garden Herbarium specimens Retrospective analysis Trace elements Urban environment Airborne pollution Botanical garden Herbarium specimens Rodríguez Martín, José Antonio De Arana, C. Ramos-Miras, J. J. Gil, C. Boluda, R. Impact of 70 years urban growth associated with heavy metal pollution |
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Historical trends in trace element deposition were analyzed using herbaria specimens. We determined Al, Fe, Mg, Mn, Ca, Na, P, K, S, As, Cd, Cr, Cu, Ni, Pb and Zn contents in leaves of eight specimens collected in 1941. To assess changes, we collected the same plants from a botanical garden in 2012. The concentrations of major elements showed large species variability. However, temporal trends were predominately detected for heavy metals. The Cd, Ni and Cr contents in the 2012 leaves were 10, 13 and 16 times higher, respectively, than in 1941. Urban activities have substantially raised the levels of these metals in urban atmospheres due to changes in human activities over 70 years of urban growth. Nevertheless, Pb has decreased (−126%) in recent decades thanks to controlled lead fuel combustion. In short, metal deposition trend to increase Cr, Ni and Cd levels. © 2014 Elsevier Ltd |
format |
artículo |
topic_facet |
Retrospective analysis Trace elements Urban environment Airborne pollution Botanical garden Herbarium specimens |
author |
Rodríguez Martín, José Antonio De Arana, C. Ramos-Miras, J. J. Gil, C. Boluda, R. |
author_facet |
Rodríguez Martín, José Antonio De Arana, C. Ramos-Miras, J. J. Gil, C. Boluda, R. |
author_sort |
Rodríguez Martín, José Antonio |
title |
Impact of 70 years urban growth associated with heavy metal pollution |
title_short |
Impact of 70 years urban growth associated with heavy metal pollution |
title_full |
Impact of 70 years urban growth associated with heavy metal pollution |
title_fullStr |
Impact of 70 years urban growth associated with heavy metal pollution |
title_full_unstemmed |
Impact of 70 years urban growth associated with heavy metal pollution |
title_sort |
impact of 70 years urban growth associated with heavy metal pollution |
publisher |
Elsevier |
publishDate |
2015 |
url |
http://hdl.handle.net/20.500.12792/3801 http://hdl.handle.net/10261/291495 |
work_keys_str_mv |
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_version_ |
1767603221742747648 |