C. Cun et R. Vilagines, TIME-SERIES ANALYSIS ON CHLORIDES, NITRATES, AMMONIUM AND DISSOLVED-OXYGEN CONCENTRATIONS IN THE SEINE RIVER NEAR PARIS, Science of the total environment, 208(1-2), 1997, pp. 59-69
Graphical and statistical time series techniques have been used to ana
lyze the trends and specified time changes, in a 90-year record of ann
ual average value of Seine river water quality data. The information o
btained may be associated with some socio-economic variables, such as
industrial or agricultural development, urban increase and wastewater
discharge around or upstream of the measure station. Such a study may
now be applied to more rural stations in order to compare the evolutio
n of water quality and, perhaps, historical monthly average values to
evaluate the seasonality effect on annual trends. (C) 1997 Elsevier Sc
ience B.V.