PMID- 24355851
OWN - NLM
STAT- MEDLINE
DCOM- 20140313
LR  - 20131220
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 68
IP  - 12
DP  - 2013
TI  - Nitrogen patterns in subsurface waters of the Yzeron stream: effect of combined 
      sewer overflows and subsurface-surface water mixing.
PG  - 2632-7
LID - 10.2166/wst.2013.531 [doi]
AB  - Urbanization subjects streams to increased nitrogen loads. Therefore studying 
      nitrogen forms at the interface between urban stream and groundwater is important 
      for water resource management. In this study we report results on water delta(18)O 
      and nitrogen forms in subsurface waters of a stream (Yzeron, France). The sites 
      studied were located upstream and downstream of combined sewer overflows (CSO) in 
      a rural area and a periurban area, respectively. Water delta(18)O allowed us to 
      follow the mixing of subsurface water with surface water. Dissolved organic 
      nitrogen and organic carbon of fine sediment increased by 20-30% between rural 
      and periurban subsurface waters in the cold season, under high flow. The highest 
      nitrate levels were observed in rural subsurface waters in the cold season. The 
      lowest nitrate levels were found in periurban subsurface waters in the warm 
      season, under low flow. They corresponded to slow exchange of subsurface waters 
      with channel water. Thus reduced exchange between surface and subsurface waters 
      and organic-matter-rich input seemed to favor nitrate reduction in the 
      downstream, periurban, subsurface waters impacted by CSO.
FAU - Aucour, A M
AU  - Aucour AM
AD  - LGL-TPE, Universite Lyon 1, 2 rue Raphael Dubois, 69622 Villeurbanne cedex, 
      France E-mail: aucour@univ-lyon1.fr.
FAU - Bariac, T
AU  - Bariac T
AD  - BIOEMCO-UMR7618, Campus AgroParisTech, 78850 Thivernal-Grigon, France.
FAU - Breil, P
AU  - Breil P
AD  - IRSTEA, 5 rue de la Doua, 69626 Villeurbanne cedex, France.
FAU - Namour, P
AU  - Namour P
AD  - IRSTEA, 5 rue de la Doua, 69626 Villeurbanne cedex, France; ISA-UMR5280, 
      Universite de Lyon, 5 rue de la Doua, 69100 Villeurbanne cedex, France.
FAU - Schmitt, L
AU  - Schmitt L
AD  - CNRS-UMR7362, Universite de Strasbourg, 3 rue de l'Argonne, 67083 Strasbourg 
      Cedex, France.
FAU - Gnouma, R
AU  - Gnouma R
AD  - IRSTEA, 5 rue de la Doua, 69626 Villeurbanne cedex, France.
FAU - Zuddas, P
AU  - Zuddas P
AD  - LGL-TPE, Universite Lyon 1, 2 rue Raphael Dubois, 69622 Villeurbanne cedex, 
      France E-mail: aucour@univ-lyon1.fr; ISTEP, Universite Pierre et Marie Curie, 4 
      place Jussieu, 75252 Paris Cedex 05, France.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
RN  - 0 (Oxygen Isotopes)
RN  - 0 (Sewage)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - *Environmental Monitoring/methods
MH  - France
MH  - Fresh Water/*chemistry
MH  - Groundwater/*chemistry
MH  - *Hydrodynamics
MH  - Nitrogen/*analysis
MH  - Oxygen Isotopes
MH  - Sewage/*chemistry
MH  - Urbanization
EDAT- 2013/12/21 06:00
MHDA- 2014/03/14 06:00
CRDT- 2013/12/21 06:00
PHST- 2013/12/21 06:00 [entrez]
PHST- 2013/12/21 06:00 [pubmed]
PHST- 2014/03/14 06:00 [medline]
AID - 10.2166/wst.2013.531 [doi]
PST - ppublish
SO  - Water Sci Technol. 2013;68(12):2632-7. doi: 10.2166/wst.2013.531.