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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Transplantation of epiphytic bioaccumulators (Tillandsia capillaris) for high spatial resolution biomonitoring of trace elements and point sources deconvolution in a complex mining/smelting urban context
Atmospheric Environment, Volume 80, Year 2013
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Description
Monitoring atmospheric trace elements (TE) levels and tracing their source origin is essential for exposure assessment and human health studies. Epiphytic Tillandsia capillaris plants were used as bioaccumulator of TE in a complex polymetallic mining/smelting urban context (Oruro, Bolivia). Specimens collected from a pristine reference site were transplanted at a high spatial resolution (~1sample/km2) throughout the urban area. About twenty-seven elements were measured after a 4-month exposure, also providing new information values for reference material BCR482. Statistical power analysis for this biomonitoring mapping approach against classical aerosols surveys performed on the same site showed the better aptitude of T.Capillaris to detect geographical trend, and to deconvolute multiple contamination sources using geostatistical principal component analysis. Transplanted specimens in the vicinity of the mining and smelting areas were characterized by extreme TE accumulation (Sn>Ag>Sb>Pb>Cd>As>W>Cu>Zn). Three contamination sources were identified: mining (Ag, Pb, Sb), smelting (As, Sn) and road traffic (Zn) emissions, confirming results of previous aerosol survey. © 2013 Elsevier Ltd.
Authors & Co-Authors
Resongles, Eléonore
France, Toulouse
Observatoire Midi-pyrénées
Point, David
France, Toulouse
Observatoire Midi-pyrénées
Oliva, Priscia
France, Toulouse
Observatoire Midi-pyrénées
Duprey, Jean Louis
Bolivia, La Paz
Universidad Mayor de San Andres Bolivia
Prunier, Jonathan
France, Toulouse
Observatoire Midi-pyrénées
Zouiten, Cyril
France, Toulouse
Observatoire Midi-pyrénées
Gardon, Jacques
France, Marseille
Ird Institut de Recherche Pour le Developpement
Statistics
Citations: 27
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.1016/j.atmosenv.2013.08.011
ISSN:
18732844
Research Areas
Environmental
Study Design
Cross Sectional Study
Study Approach
Quantitative