@article{fdi:010087572,
  title = {{T}race mercury migration and human exposure in typical mercury-emission areas by compound-specific stable isotope analysis},
  author = {{F}eng, {X}. {B}. and {Z}hang, {L}. {M}. and {S}onke, {J}. {E}. and {P}oint, {D}avid and {M}aurice, {L}aurence and {Y}in, {R}. {S}. and {A}li, {M}. {U}. and {W}ang, {C}. and {Q}in, {C}. {Y}. and {L}i, {P}. and {Y}ang, {S}. {C}. and {W}ang, {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}nthropogenic mercury ({H}g) emissions have increased significantly since the {I}ndustrial {R}evolution, resulting in severe health impacts to humans. {T}he consumptions of fish and rice were primary human methylmercury ({M}e{H}g) exposure pathways in {A}sia. {H}owever, the lifecycle from anthropogenic {H}g emissions to human {M}e{H}g exposure is not fully understood. {I}n this study, a recently developed approach, termed {M}e{H}g {C}ompound-{S}pecific {I}sotope {A}nalysis ({CSIA}), was employed to track lifecycle of {H}g in four typical {H}g-emission areas. {D}istinct {D}elta {H}g-199 of {M}e{H}g and inorganic {H}g ({IH}g) were observed among rice, fish and hair. {T}he {D}elta {H}g-199 of {M}e{H}g averaged at 0.07 +/- 0.15 %o, 0.80 +/- 0.55 %o and 0.43 +/- 0.29 %o in rice, fish and hair, respectively, while those of {IH}g averaged at 0.08 +/- 0.24 %o, 0.85 +/- 0.43 %o and - 0.28 +/- 0.68 %o. {I}n paddy ecosystem, {D}elta {H}g-199 of {M}e{H}g in rice showed slightly positive shifts (similar to 0.2 %o) from those of {IH}g, and comparable {D}elta {H}g-199 of {IH}g between rice grain and raw/ processed materials (coal, {H}g ore, gold ore and sphalerite) were observed. {S}imultaneously, it was proved that {IH}g in fish muscle was partially derived from in vivo demethylation of {M}e{H}g. {B}y a binary model, we estimated the relative contributions of rice consumption to human {M}e{H}g exposure to be 84 +/- 14 %, 58 +/- 26 %, 52 +/- 20 % and 34 +/- 15 % on average in {H}g mining area, gold mining area, zinc smelting area and coal-fired power plant area, respectively, and positive shifts of delta {H}g-202({M}e{H}g) from fish/rice to human hair occurred during human metabolic processes. {T}herefore, the {CSIA} approach can be an effective tool for tracking {H}g biogeochemical cycle and human exposure, from which new scientific knowledge can be generated to support {H}g pollution control policies and to protect human health.},
  keywords = {{R}ice ; {F}ish ; {H}air ; {M}ethylmercury ; {C}ompound-specific isotope analysis ; {S}ource appointment},
  booktitle = {},
  journal = {{E}nvironment {I}nternational},
  volume = {174},
  numero = {},
  pages = {107891 [8 ]},
  ISSN = {0160-4120},
  year = {2023},
  DOI = {10.1016/j.envint.2023.107891},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087572},
}