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A series of reference materials are proposed for intercomparison and quality control purposes during the quantification of lignin oxidation products (LOP) from diverse environmental matrices. These materials are all easily accessible and certified for diverse organic constituents (NIST and IHSS). They represent a suite of natural environmental matrices (from solids to aqueous) and are characterized...
Elemental and molecular analyses indicate that the sources and inputs of terrigenous organic matter (OM) to the upper St. Lawrence system have been influenced by increased discharges of industrial solid organic wastes from the pulp and paper industry following its expansion in the 1920-1940's. Moderately altered lignin-rich particles from a combination of natural and anthropogenic sources predominate...
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