@article{fdi:010089743, title = {{M}etal contamination, their ecological risk, and relationship with other variables in surface sediments of urban rivers in a big city in {A}sia: case study of {H}anoi, {V}ietnam}, author = {{P}hung, {T}. {X}. {B}. and {L}e, {T}. {P}. {Q}. and {L}e, {N}. {D}. and {H}oang, {T}. {T}. {H}. and {N}guyen, {T}. {M}. {H}. and {R}ochelle-{N}ewall, {E}mma and {N}guyen, {T}. {A}. {H}. and {D}uong, {T}. {T}. and {P}ham, {T}. {M}. {H}. and {N}guyen, {T}. {D}.}, editor = {}, language = {{ENG}}, abstract = {{U}rban rivers are significantly impacted by anthropogenic pressure. {T}his study presents the updated assessment of the concentrations of 11 metals and other variables (p{H}, total organic carbon ({TOC}) and nutrients (total nitrogen, total phosphorus, and total silica)) in the sediments of four urban rivers in inner {H}anoi city, {V}ietnam, during the period 2020-2022. {T}he mean concentrations of {F}e, {Z}n, {A}s, and {C}r were higher than the permissible values of the {V}ietnam {N}ational technical regulation on the surface sediment quality. {M}oreover, {Z}n and {C}r were at the severe effect level of the {US} {EPA} guidelines for sediment quality. {T}he calculation of pollution indices ({I}geo and {EF}) demonstrated that {M}n, {N}i, and {F}e were from natural sources whereas other metals were from both anthropogenic and natural sources. {T}he ecological risk index revealed that metals in {H}anoi riverine sediments were classified at considerable ecological risk. {H}igh values of metals, {TOC}, and nutrients in the sediments of these urban rivers mostly originate from the accumulation of untreated urban wastewater that is enhanced by low river discharge. {O}ur results may provide scientific base for better management decisions to ensure environmental protection and sustainable development of {H}anoi city.}, keywords = {{H}anoi city ; {H}eavy metals ; {H}uman impact ; {R}iverine sediment ; {U}rban rivers ; {VIET} {NAM} ; {HANOI}}, booktitle = {}, journal = {{E}nvironmental {S}cience and {P}ollution {R}esearch}, volume = {31}, numero = {15}, pages = {22362--22379}, ISSN = {0944-1344}, year = {2024}, DOI = {10.1007/s11356-024-32549-x}, URL = {https://www.documentation.ird.fr/hor/fdi:010089743}, }