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 Goix S. auteur aut IRD Resongles E. auteur aut IRD Point David auteur aut IRD Oliva P. auteur aut IRD Duprey Jean-Louis auteur aut IRD de la Galvez E. auteur aut IRD Ugarte L. auteur aut IRD Huayta C. auteur aut IRD Prunier J. auteur aut IRD Zouiten C. auteur aut IRD Gardon Jacques auteur aut IRD text journalArticle eng text/pdf born digital access 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 bio-accumulator 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 (similar to 1 sample/km(2)) 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. specialized Bioaccumulation Tillandsia capillaris Trace elements Mining and smelting activities Atmospheric contamination BCR482 BOLIVIE 021 060 020 Atmospheric Environment 80 330-341 2013 1352-2310 https://www.documentation.ird.fr/hor/fdi:010061356 10.1016/j.atmosenv.2013.08.011 1352-2310 [F B010061356] https://www.documentation.ird.fr/hor/fdi:010061356 https://www.documentation.ird.fr/intranet/publi/2014/01/010061356.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2014-02-05 2017-08-23 fdi:010061356 fre