title: Possibilities to improve the quality of wastewater sludges.
abstract: Falling heavy metal concentrations in wastewater sludges are an indicator of the improvements in sludge quality achieved over the past thirty years. Studies of the sources of heavy metals in wastewater sludges, particularly the loads introduced by domestic and industrial wastewater and storm water, show the potential improvement that may still be made.
authors.affiliation: VA-strategi, Mölndal, Sweden. balmer@telia.com
authors.forename: P
authors.initials: P
authors.lastname: Balmér
mesh_terms: D006798:Housing; D007220:Industrial Waste; D019216:Metals, Heavy / Q000032:analysis*; D011891:Rain; D012722:Sewage / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods; D014876:Water Pollution / Q000517:prevention & control*
chemical_list: D007220:Industrial Waste; D019216:Metals, Heavy; D012722:Sewage