végétation (1) spectacle (1) région (1) aquifère (1) plomb (1) affluent (1) indicateur (1) pente (1) eaux souterraines (1) débit (1) classification (1) substance chimique (1) abords (agglomération) (1) Wetland management (1) Water chemistry (1) Groundwater (1) Water (1) Values (1) Solids (1) Plants (1) Peatlands (1) Lead (1) Classification (1) Classification (1) Classification (1) Sources (1) Sources (1) Regions (1) Number (1) jatte (1)