20.500.12556/DiRROS-19532 Arsenic in sediments, soil and plants in a remediated area of the Iron Quadrangle, Brazil, and its accumulation and biotransformation in Eleocharis geniculata Since arsenic (As) exposure is largely due to geochemical contamination, this study focused on the remediated area of Santana do Morro, a district of Santa Bárbara, Minas Gerais, Brazil, which was previously contaminated with As due to gold mining. Total As concentrations in sediment, soil and plants were determined, next to As species, anionic arsenic compounds As(III), As(V), monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA), in plants samples. Total As concentrations in soil and sediments were slightly elevated (16-18 µg g-1) and most of the plants contained low levels of As (< 1 µg g-1). The exception was a native plant Eleocharis geniculata (L.) which contained elevated levels of As (4 µg g-1). The exposure of this plant to As under controlled conditions (hydroponics) indicated its possible tolerance to elevated As levels and suggesting its potential use in phytomonitoring of As-contaminated sites. This plant is able to metabolize arsenate to arsenite and contained MMA and DMA, both in its natural habitat and under controlled conditions. arsenic species soil sediments plants Cyperacea Iron Quadrangle varstvo okolja prst usedline arzen true false true Angleški jezik Slovenski jezik Neznano 2024-07-19 03:43:53 2024-07-22 11:31:19 2024-07-23 03:55:53 0000-00-00 00:00:00 2020 0 0 Nasl. z nasl. zaslona; Opis vira z dne 2. 10. 2020; str. 985-991 no. 3 Vol. 67 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2020-09-23 577 1580-3155 10.17344/acsi.2019.5760 30758403 https://journals.matheo.si/index.php/ACSi/issue/viewIssue/34/16 1 9763a15e-455f-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=26933 RAZ_Menezes_Maria-Angela_2020.pdf RAZ_Menezes_Maria-Angela_2020.pdf 1 EF1C2A4EE3429AF6C2E9F29F854A1D02 34498df85bc60c54085ddbd3c658ade5da383642eac9ce589a20eb3e627c8667 ae6893ff-47fc-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=27078 Institut Jožef Stefan Nacionalni inštitut za biologijo 0 0 0