@article{fdi:010084234,
  title = {{S}urface sediment quality of the {R}ed {R}iver ({V}ietnam) : impacted by anthropogenic and natural factors},
  author = {{L}e, {T}. {P}. {Q}. and {L}e, {N}. {D}. and {H}oang, {T}. {T}. {H}. and {R}ochelle-{N}ewall, {E}mma and {N}guyen, {T}. {A}. {H}. and {D}inh, {L}. {M}. and {D}uong, {T}. {T}. and {P}ham, {T}. {M}. {H}. and {N}guyen, {T}. {D}. and {P}hung, {T}. {X}. {B}. and {N}guyen, {T}. {Q}. {T}. and {V}u, {T}. {H}. and {L}e, {P}. {T}. and {P}hung, {V}. {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{R}iverine surface sediments are known to be important sources and sinks for different variables like metals, organic carbon and nutrients. {T}his paper presents the surface sediment quality of the {R}ed {R}iver which was monitored for nine trace metal elements, total organic carbon and nutrients (nitrogen, phosphorus and silica) during four sampling campaigns in 2019. {T}he results showed that {F}e and {A}s concentrations were higher than the allowed values of the {V}ietnam {N}ational technical regulation on the surface sediment quality {QCVN} 43:2017/{BTNMT}. {T}race metal element concentrations were, from highest to lowest, {F}e > {M}n > {C}u > {Z}n > {P}b > {C}r > {A}s > {C}d > {H}g. {T}he geoaccumulation index and the enrichment factor values revealed that the {R}ed {R}iver sediments were polluted by {A}s; moderately polluted by {C}u, {P}b, {C}d, and {H}g; and uncontaminated by other metals ({M}n, {C}r and {Z}n). {F}or other variables, total organic carbon (0.43 +/- 0.31%), total nitrogen (0.09 +/- 0.04%), and total phosphorus (0.060 +/- 0.018%) were low in comparison with other urban rivers, whereas total silica (29.93 +/- 4.52%) seemed to be high. {S}patially, the lowest values of most variables were observed at the {H}oa {B}inh site, where human population and activities are lowest and when discharge was highest. {I}n contrast, most variables were highest at the {B}a {L}at site where the human activities clearly impacted on the {R}ed {R}iver. {T}hese results indicate that the {R}ed {R}iver sediment is affected by a combination of natural characteristics and human activities in the basin.},
  keywords = {{S}ediment ; {N}utrients ; {T}otal organic carbon ; {T}race metal elements ; {H}uman impacts ; {N}atural factors ; {VIET} {NAM} ; {FLEUVE} {ROUGE}},
  booktitle = {},
  journal = {{I}nternational {J}ournal of {E}nvironmental {S}cience and {T}echnology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[20 p.]},
  ISSN = {1735-1472},
  year = {2022},
  DOI = {10.1007/s13762-022-03936-z},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084234},
}