FN Archimer Export Format PT J TI Twenty five years of observations of littoral water quality: trends of quality loss and improvement OT Vingt cinq ans d’observations de la qualité des eaux littorales : tendances de dégradation et d’amélioration BT AF Beliaeff, Benoit Grouhel, Anne Billen, A. Barnouin, Bruno AS 1:1;2:1;3:2;4:1; FF 1:;2:;3:;4:; C2 IFREMER, FRANCE UNIV PARIS 06, FRANCE IF 0.084 TC 0 UR https://archimer.ifremer.fr/doc/00796/90838/96449.pdf LA English DT Article AB A first list of dangerous substances to supervise was drawn up by the Environmental Protection Agency - EPA (the USA). International Conventions (e.g. Oslo-Paris) attempted to give priorities among the substances.This list was since reduced, but twenty five years of observations (in continuous protocols) along the French littoral, allow to draw up an objective assessment of the levels of contaminations, recorded progress, remanent deteriorations, and of the effectiveness of measures taken.The time-constants recorded before observing the results of these measures are important: they integrate the physicochemistry of the coastal and estuary processes, but also inertia, even hysteresis of the socio-economic system which implement these measures PY 2005 PD MAY SO La Houille Blanche SN 0018-6368 PU Informa UK Limited VL 91 IS 3 BP 69 EP 80 DI 10.1051/lhb:200503010 ID 90838 ER EF