@article{fdi:010053759, title = {{M}ultielementary ({C}d, {C}u, {P}b, {Z}n, {N}i) stable isotopic exchange kinetic ({SIEK}) method to characterize polymetallic contaminations}, author = {{S}ivry, {Y}. and {R}iotte, {J}ean and {S}appin-{D}idier, {V}. and {M}unoz, {M}arguerite and {R}edon, {P}. {O}. and {D}enaix, {L}. and {D}upr{\'e}, {B}.}, editor = {}, language = {{ENG}}, abstract = {{A} new method is proposed to precisely and simultaneously quantify the exchangeable pool of metals in soils and to describe its reactivity at short- and long-term. {I}t is based on multielementary {S}table {I}sotopic {E}xchange {K}inetics (multi-{SIEK}), first: validated by a comparison between two monoelementary radioactive ({C}d-109*, {Z}n-65*) {LEK} experiments, a mono- ({C}d-109) and multi- ({N}i-62, {C}u-65, {Z}n-67, {C}d-106, {P}b-204) {SIEK}. {T}hese experiments were performed on a polluted soil located near the {Z}n smelter plant of {V}iviez ({L}ot watershed, {F}rance). {T}he {LEK} results obtained for {C}d and {Z}n were consistent across the experiments. {C}d-109*, {Z}n-65* {LEK}, and multi-{SLEK} were then applied on 3 non- and moderate impacted soils that also provided consistent results for {C}d and {Z}n. {W}ithin these experimental conditions, it can be concluded that no competition occurs between {C}d, {Z}n, and the other metals during {SIEK}. {M}ulti-{SIEK} results indicate that the isotopically exchangeable pool of {N}i, {Z}n, and {C}u are small ({E}-{N}v, {E}-{Z}n, and {E}-{C}u values up to 17%) whatever the pollution degree of the soils considered in this study and whatever the duration of the interaction. {O}n the contrary, {C}d displays the highest {E} values (from 35% to 61% after 1 week), and {E}-{P}b displays a maximum value of 26% after 1 week. {T}he multi-{SIEK} provides useful information on metal sources and reactivity relationship. {N}i would be located in stable pedogenic phases according to its very low enrichment factor. {T}he low {E}-{Z}n and {E}-{C}u are consistent with location of {Z}n and {C}u in stable phases coming from tailings erosion. {T}hough {P}b enrichments in soils may also be attributed to tailings particles, its larger exchangeable pool suggests that the {P}b-bearing phases are more labile than those containing {Z}n and {C}u. {T}he high mobility of {C}d in upstream soils indicates that it has been mostly emitted as reactive atmospheric particles during high temperature ore-treatment.}, keywords = {}, booktitle = {}, journal = {{E}nvironmental {S}cience and {T}echnology}, volume = {45}, numero = {15}, pages = {6247--6253}, ISSN = {0013-936{X}}, year = {2011}, DOI = {10.1021/es2006644}, URL = {https://www.documentation.ird.fr/hor/fdi:010053759}, }