Aquatic bryophytes for a spatio-temporal monitoring of the water pollution of the rivers Meuse and Sambre (Belgium)

aguas residuales belgique belgium biological indicators bryophyta calcio calcium cinc cobre copper cours d'eau cuivre cursos de agua detergents effluents fer heavy metals hidrologia hierro hydrologie hydrology indicator organisms iron lead manganese manganeso metal metales metales pesados metals monitoring organisme indicateur organismos indicadores ph plomb plomo pollution de l'eau potasio potassium rivers surface active agents surfactant surfactantes vigilancia wastewater water pollution zinc