PMID- 27726086
OWN - NLM
STAT- MEDLINE
DCOM- 20170525
LR  - 20181202
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 24
IP  - 4
DP  - 2017 Feb
TI  - Baseline seasonal investigation of nutrients and trace metals in surface waters 
      and sediments along the Saigon River basin impacted by the megacity of Ho Chi 
      Minh (Vietnam).
PG  - 3226-3243
LID - 10.1007/s11356-016-7660-7 [doi]
AB  - The Saigon River, Southern Vietnam, crosses one of the most dynamic developing 
      Megacity in Southeast Asia: Ho Chi Minh City (HCMC). The increased economic, 
      industrial, and domestic developments may affect the environmental quality of 
      water and halieutic resources. In this study, we evaluated the seasonal (dry and 
      wet seasons) biogeochemical state of the Saigon River during two snapshot 
      campaigns conducted along the river basin upstream from HCMC; the Saigon River 
      was characterized by slightly acidic (pH 5.7-7.7) and oxygen-depleted water 
      (dissolved oxygen (DO), 0.36-5.18 mg l(-1)). Nutrients (N-NH(4) = 0.01-2.41, 
      N-NO(3) = 0.14-2.72, and P-PO(4) = ~0-0.42 mg l(-1)), DOC (2.2-8.0 mg l(-1)), 
      POC, and trace metal(oid) (As, Cd, Cr, Cu, Zn, and Hg) concentrations were low 
      showing a good quality of the upstream river. In the urban center area, DO 
      dropped to 0.03 mg l(-1) accompanied with a rise of nutrient concentrations 
      (e.g., N-NH(4), up to 17.7 mg l(-1)) likely originating from wastewater 
      discharges. Trace metal concentrations also rose sharply (e.g., Cr and Hg rose up 
      to 10-fold higher) in both water and sediments but remained under the World 
      Health Organization (WHO) and Vietnamese concentration guidelines. In the 
      downstream estuarine area, the intrusion of marine waters diluted water flowing 
      from HCMC, leading water quality to return close to the state observed upstream 
      from HCMC. In general, levels of nutrient and metal contaminations along the 
      Saigon River during both seasons appear moderate regarding to Vietnamese and WHO 
      guidelines although the urban area is highlighted as the major contributor for 
      metal(oid) emissions. Finally, we showed that apart from wastewater and 
      industrial discharges that affect the river quality, metal(oid) partitioning 
      between solid and solution is controlled by the change in water geochemistry 
      along the continuum during both seasons, such as DO (e.g., for As and Cr) and pH 
      (e.g., for Pb) which drives their sorption/dissolution dynamics.
FAU - Strady, Emilie
AU  - Strady E
AUID- ORCID: 0000-0001-5683-0810
AD  - Universite Grenoble Alpes/CNRS/IRD, LTHE UMR 5564, 38000, Grenoble, France. 
      emilie.strady@ird.fr.
AD  - CARE-HCMUT, Ho Chi Minh City, Vietnam. emilie.strady@ird.fr.
FAU - Dang, Vu Bich Hanh
AU  - Dang VB
AD  - Faculty of Environment, HCMUT, Ho Chi Minh City, Vietnam.
FAU - Nemery, Julien
AU  - Nemery J
AD  - Universite Grenoble Alpes/CNRS/IRD, LTHE UMR 5564, 38000, Grenoble, France.
FAU - Guedron, Stephane
AU  - Guedron S
AD  - Universite Grenoble Alpes/CNRS/IRD, LTHE UMR 5564, 38000, Grenoble, France.
FAU - Dinh, Quoc Tuc
AU  - Dinh QT
AD  - CARE-HCMUT, Ho Chi Minh City, Vietnam.
AD  - Faculty of Environment, HCMUT, Ho Chi Minh City, Vietnam.
FAU - Denis, Herve
AU  - Denis H
AD  - Universite Grenoble Alpes/CNRS/IRD, LTHE UMR 5564, 38000, Grenoble, France.
FAU - Nguyen, Phuoc Dan
AU  - Nguyen PD
AD  - Faculty of Environment, HCMUT, Ho Chi Minh City, Vietnam.
LA  - eng
PT  - Journal Article
DEP - 20161010
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 0 (Metals, Heavy)
RN  - 0 (Organic Chemicals)
RN  - 0 (Water Pollutants, Chemical)
RN  - S88TT14065 (Oxygen)
SB  - IM
MH  - Geologic Sediments/*chemistry
MH  - Metals, Heavy/*analysis
MH  - Organic Chemicals/*analysis
MH  - Oxygen/analysis
MH  - Rivers/*chemistry
MH  - Seasons
MH  - Vietnam
MH  - Water Pollutants, Chemical/*analysis
OTO - NOTNLM
OT  - Mercury
OT  - Organic carbon
OT  - Tropical river
OT  - Water quality
EDAT- 2016/10/12 06:00
MHDA- 2017/05/26 06:00
CRDT- 2016/10/12 06:00
PHST- 2015/11/11 00:00 [received]
PHST- 2016/09/07 00:00 [accepted]
PHST- 2016/10/12 06:00 [pubmed]
PHST- 2017/05/26 06:00 [medline]
PHST- 2016/10/12 06:00 [entrez]
AID - 10.1007/s11356-016-7660-7 [pii]
AID - 10.1007/s11356-016-7660-7 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2017 Feb;24(4):3226-3243. doi: 
      10.1007/s11356-016-7660-7. Epub 2016 Oct 10.