TY - JOUR
T1 - Lead pollution remanence in an Urban River system
T2 - 16th International Conference on Heavy Metals in the Environment, ICHMET 2012
AU - Ayrault, S.
AU - Le Pape, P.
AU - Priadi, C. R.
AU - Roy-Barman, M.
AU - Quantin, C.
AU - Bonté, P.
N1 - Publisher Copyright:
© Owned by the authors, published by EDP Sciences, 2013.
PY - 2013/4/23
Y1 - 2013/4/23
N2 - This work aims at studying the fate of sediments contaminated with tetraethyl Pb from leaded gasoline using a two-dimension upscaling approach, from a small urban subcatchment, the Orge River (900 km2) to the whole Seine River basin (64700 km2), in France. In France, the leaded gasoline reduction started in 1986 and leaded gasoline was completely banned after 2000. This work aims at assessing whether the ban of leaded gasoline is related to changes in Pb contamination sources of these river suspended sediment particles (SPM) and bed sediment. Sediment cores and samples collected in the course of previous research projects of the Seine River contamination were used as temporal archives. The study of the isotopic lead ratio showed the fast decrease of the contamination of urban river suspended particulate matter due to the "gasoline" lead source from 2000 to 2011. This source mostly disappeared in the SPM from the Seine River basin that includes urban areas but also agricultural and industrial activities. Nevertheless, it is still present in the small urban catchment of the Orge River. The results on bed sediments showed a different pattern, where the "gasoline" source is still active in densely populated areas, either in the Seine River in the 20 km downstream Paris, or along the Orge River.
AB - This work aims at studying the fate of sediments contaminated with tetraethyl Pb from leaded gasoline using a two-dimension upscaling approach, from a small urban subcatchment, the Orge River (900 km2) to the whole Seine River basin (64700 km2), in France. In France, the leaded gasoline reduction started in 1986 and leaded gasoline was completely banned after 2000. This work aims at assessing whether the ban of leaded gasoline is related to changes in Pb contamination sources of these river suspended sediment particles (SPM) and bed sediment. Sediment cores and samples collected in the course of previous research projects of the Seine River contamination were used as temporal archives. The study of the isotopic lead ratio showed the fast decrease of the contamination of urban river suspended particulate matter due to the "gasoline" lead source from 2000 to 2011. This source mostly disappeared in the SPM from the Seine River basin that includes urban areas but also agricultural and industrial activities. Nevertheless, it is still present in the small urban catchment of the Orge River. The results on bed sediments showed a different pattern, where the "gasoline" source is still active in densely populated areas, either in the Seine River in the 20 km downstream Paris, or along the Orge River.
KW - Anthropogenic sources
KW - Isotopes
KW - Lead
KW - Pollution
KW - Urban river
UR - http://www.scopus.com/inward/record.url?scp=85016504203&partnerID=8YFLogxK
U2 - 10.1051/e3sconf/20130124001
DO - 10.1051/e3sconf/20130124001
M3 - Conference article
AN - SCOPUS:85016504203
SN - 2555-0403
VL - 1
JO - E3S Web of Conferences
JF - E3S Web of Conferences
M1 - 24001
Y2 - 23 September 2013 through 27 September 2013
ER -
