@article{fdi:010087626, title = {{E}xploring a new approach for assessing the fate and behavior of the tailings released by the {B}rumadinho dam collapse ({M}inas {G}erais, {B}razil)}, author = {{K}obayashi, {H}. and {G}arnier, {J}. and {M}ulholland, {D}. {S}. and {Q}uantin, {C}. and {H}aurine, {F}. and {T}onha, {M}. and {J}oko, {C}. and {O}livetti, {D}. and {F}reydier, {R}. and {S}eyler, {P}atrick and {M}artinez, {J}. {M}. and {R}oig, {H}. {L}.}, editor = {}, language = {{ENG}}, abstract = {{I}n 2019, the {B}rumadinho dam rupture released a massive amount of iron ore mining tailings into the {P}araopeba {R}iver. {U}p to now, it remains a public health issue for the local and downstream populations. {T}he present study aims to assess the behavior and fate of metal contamination following the disaster. {U}sing new sampling strategies and up-to-date geochemistry tools, we show that the dissolved metal concentrations (< 0.22 mu m cutoff filtration) remained low in the {P}araopeba {R}iver. {A}lthough the tailings present high metal concentrations ({F}e, {M}n, {C}d, and {A}s), the high local background contents of metals and other previous anthropogenic contamination hamper tracing the sediment source based only on the geochemical signature. {T}he {P}b isotopic composition coupled with the metals enrichment factor of sediments and {S}uspended {P}articulate {M}atter ({SPM}) constitutes accurate proxies that trace the fate and dispersion of tailing particles downstream of the dam collapse. {T}his approach shows that 1) {T}he influence of the released tailing was restricted to the {P}araopeba {R}iver and the {R}etiro {B}aixo reservoir, located upstream of the {S}a similar to o {F}rancisco {R}iver; 2) {T}he tailings' contribution to particulate load ranged from 17 % to 88 % in the {P}araopeba {R}iver; 3) {O}ther regional anthropogenic activities also contribute to water and sediment contamination of the {P}araopeba river.}, keywords = {{B}rumadinho dam disaster ; {M}etal contamination ; {P}araopeba {R}iver ; {M}ine tailings ; {E}nvironmental geochemistry ; {P}b isotopes ; {M}etal dynamics ; {BRESIL} ; {MINAS} {GERAIS}}, booktitle = {}, journal = {{J}ournal of {H}azardous {M}aterials}, volume = {448}, numero = {}, pages = {130828 [11 ]}, ISSN = {0304-3894}, year = {2023}, DOI = {10.1016/j.jhazmat.2023.130828}, URL = {https://www.documentation.ird.fr/hor/fdi:010087626}, }