[DMU technical report, 253: Water environment survey 1997: Freshwater areas: Streams and wells 1998 [BOD]]

algae aquatic environment azote calidad del agua carga contaminante charge polluante climatic factors cours d'eau cursos de agua danemark denmark dinamarca ecosistema ecosystems facteur climatique fauna faune fosforo hidrogeologia hydrogeologie hydrogeology land use leaching lessivage du sol measurement mesure milieu aquatique nitrogen oxygen phosphore phosphorus pollutant load pozos precipitation puits rivers temperatura temperature utilisation des terres water quality wells