@article{fdi:010096298,
  title = {{S}ources, mobility, and accumulation of major and trace elements in sediments : implications for environmental quality and management of an urbanized tropical lake ({B}rasília, {B}razil)},
  author = {{O}liveira, {E}. {S}. and {G}arnier, {J}. and {A}raújo, {D}. {F}. and {M}ulholland, {D}. {S}. and {D}ias-{R}oque, {D}. {F}. and {T}onha, {M}. {S}. and {C}icerelli, {R}. {E}. and {K}oide, {S}. and {B}onnet, {M}arie-{P}aule and {S}eyler, {P}atrick and {R}oig, {H}. {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he quality of aquatic ecosystems is strongly influenced by inputs of nutrients and trace elements. {I}dentifying their sources and bioavailability is critical for understanding elemental cycling and assessing environmental risks in lakes exposed to increasing anthropogenic pressures, such as {L}ake {P}aranoá, a man-made reservoir in {B}rasilia, {B}razil. {T}his study investigates the spatial distribution and geochemical partitioning of sedimentary nutrients and metals in {L}ake {P}aranoá to elucidate their origins and behavior. {S}ediment distribution patterns reflect the lake's hydrodynamics and proximity to input sources. {H}uman-induced erosion from expanding urban areas contributes to the influx of both lithogenic and anthropogenic materials. {O}ur results indicate that {C}a, {M}g, {P}, and {Z}n are predominantly derived from anthropogenic sources, notably domestic sewage discharges and leaching of construction-related materials. {S}ediments near the wastewater treatment plant ({WWTP}) exhibit particularly elevated concentrations of {P}, {C}a, {M}g, and {Z}n, identifying the {WWTP} as a key source of these elements. {M}oreover, the enrichment of {P}, {M}n, and {Z}n in labile geochemical phases suggests that these elements may be readily mobilized from sediments into the water column during early diagenetic processes. {G}iven that urban lakes provide critical ecosystem services-such as water supply, recreation, and biodiversity habitats-for a growing proportion of the world's urban population, and considering their increasing number globally, understanding sediment dynamics in these systems is essential for sustainable management. {T}hese findings offer valuable insights for assessing the potential impacts of the planned sediment dredging project in {L}ake {P}aranoá, and for informing future management strategies.},
  keywords = {{M}etals contamination ; {P}hosphorous ; {S}ewage ; {A}quatic ecosystem ; {E}nvironmental risk assessment ; {BRESIL} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{L}imnology},
  volume = {[{E}arly {A}ccess]},
  numero = {},
  pages = {[16 p.]},
  ISSN = {1439-8621},
  year = {2026},
  DOI = {10.1007/s10201-025-00823-7},
  URL = {https://www.documentation.ird.fr/hor/fdi:010096298},
}