Chemical recovery and browning of Nova Scotia surface waters in response to declining acid deposition
David Redden, Benjamin F. Trueman, Dewey Dunnington, Lindsay E. Anderson, Graham A. Gagnon
Abstract
). We identified increasing aluminum trends in 46 of 61 lakes, and we show using size-exclusion chromatography that binding to organic and iron-based colloids may help to explain these trends. To the extent that increases in apparent colour are explained by chromophoric dissolved organic matter (DOM), they imply greater binding capacity for metals in surface waters, and greater capacity for DOM to stabilize metal (oxyhydr)oxide colloids.
Topics & Concepts
Nova scotiaDeposition (geology)Environmental chemistryColloidBrowningSurface waterAluminiumAcid depositionEnvironmental scienceChemistryMetallurgyEnvironmental engineeringOceanographyMaterials scienceGeologySoil scienceFood sciencePaleontologyPhysical chemistrySedimentSoil waterHeavy metals in environmentMine drainage and remediation techniquesGroundwater and Isotope Geochemistry