[Report, 2: Water environment 94: development of load from local sources and state of the water environment]

ambiente de aguas interiores bassin versant coasts contaminantes costa cours d'eau cursos de agua danemark denmark dinamarca fish culture fish ponds heavy metals inland water environment lac lagos lakes lodos residuales metales pesados milieu des eaux continentales piscicultura pisciculture polluant pollutants pollution de l'eau rivers sewage sludge tratamiento de aguas residuales wastewater treatment water pollution watersheds