@article{fdi:010081421, title = {{C}hildhood lead exposure of {A}merindian communities in {F}rench {G}uiana : an isotopic approach to tracing sources}, author = {{M}aurice, {L}aurence and {B}arraza, {F}. and {B}londet, {I}. and {H}o-{A}-{C}huck, {M}. and {T}ablon, {J}. and {B}rousse, {P}. and {D}emar, {M}. and {S}chreck, {E}.}, editor = {}, language = {{ENG}}, abstract = {{I}n {F}rench {G}uiana were detected high lead ({P}b) levels in blood of {A}merindian people. {L}ead exposure is a serious hazard that can affect the cognitive and behavior development. {P}eople can be exposed to {P}b through occupational and environmental sources. {F}ingerprinting based on stable {P}b isotopes in environmental media is often used to trace natural and anthropogenic sources but is rarely paired with blood data. {T}he objective of this study was to determine the main factors associated with high {B}lood {L}ead {L}evels ({BLL}). {S}oil, manioc tubers, food bowls, beverages, wild games, lead pellets and children blood were sampled in small villages along the {O}yapock {R}iver. children {BLL} ranged between 5.7 and 35 mu g d{L}(-1), all exceeding 5 mu g d{L}(-1), the reference value proposed in epidemiologic studies for lead poisoning. {A}mong the different dietary sources, manioc tubers and large game contained elevated {P}b concentrations while manioc-based dishes were diluted. {T}he isotopes ratios ({P}b-207/{P}b-206 and {P}b-208/{P}b-206) of children blood overlapped these of lead shots and meals. {T}hese first results confirm for the first time, the diary consumption of manioc-based food as the main contributor to {A}merindian children's {BLL} in {F}rench {G}uiana, but don't exclude the occasional exposure to lead bullets by hunting activities. {T}his is a specific health concern, since previous studies have shown that these same villagers present high levels of mercury ({H}g). {T}hese communities are indeed subject to a double exposure to neurotoxic metals, {H}g and {P}b, both through their diet. {T}he farming activity is based on manioc growing, and explaining that this ancestral practice can induce serious health risks for the child's development may seriously affect their food balance and cultural cohesion.}, keywords = {{L}ead poisoning ; {L}ead isotopes ; {M}anioc ; {B}lood ; {A}merindian children ; {F}rench {G}uiana ; {GUYANE} {FRANCAISE}}, booktitle = {}, journal = {{E}nvironmental {G}eochemistry and {H}ealth}, volume = {[{E}arly access]}, numero = {}, pages = {[17 p.]}, ISSN = {0269-4042}, year = {2021}, DOI = {10.1007/s10653-021-00944-9}, URL = {https://www.documentation.ird.fr/hor/fdi:010081421}, }