Factors influencing mercury uptake by leaves of stone pine (Pinus pinea L.) in Almadén (Central Spain)

Environmental Science and Pollution Research International
José Ignacio BarqueroPablo Higueras

Abstract

The use of trees for biomonitoring of mercury (Hg) and other atmospheric pollutants is of increasing importance today. Leaves from different species have been the most widely used plant organ for this purpose, but only pine bark, and not leaves, was used to monitor Hg pollution. In Almadén (South Central Spain), the largest cinnabar (HgS) deposits in the world have been mined for over 2000 years to obtain metallic Hg and this activity has caused the widespread dispersion of this toxic element in the local environment. A strip of pine trees, 2750 m in length, adjacent and to the South of the mining town has been studied in order to evaluate pine tree needles as monitors for Hg contamination in this heavily polluted area. The study involved the collection of pine tree leaves from several discrete sites along the strip, as well as samples from other nearby locations, together with soil samples and monitoring of atmospheric Hg in the area during both the day and night. Leaves and soils were analyzed for total Hg concentration by means of atomic absorption spectrometry; the leachable fraction of soil Hg was also analyzed by the CV-AFS technique. The results indicate that soils from the investigated area were not directly affected by...Continue Reading

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Jun 25, 2016·The Science of the Total Environment·Laura ChiarantiniMario Paolieri

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Citations

Jun 9, 2020·Environmental Geochemistry and Health·B SchiavoE Hernández-Álvarez
Nov 10, 2018·Environmental Science and Pollution Research International·Pablo L HiguerasRégis Moilleron
Apr 19, 2020·Environmental Geochemistry and Health·Rocio NaharroPablo L Higueras
Jun 3, 2021·International Journal of Environmental Research and Public Health·Sandra VisoPablo Higueras

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