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Full-Text Articles in Analytical Chemistry
A Complex Legacy Of Contamination In Urban Estuarine Systems, Michael A. Kruge
A Complex Legacy Of Contamination In Urban Estuarine Systems, Michael A. Kruge
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Industrialized urban waterways have typically suffered decades of contamination, varying in source and intensity as manufacturing and transportation practices evolved. The U.S. Environmental Protection Agency designates locales with particularly severe contamination as Superfund sites. Among these, the Gowanus Canal and lower Passaic River in the New York/New Jersey harbor estuary illustrate a complex range of contamination types.
The 2.2 km Gowanus Canal, with sluggish circulation driven mostly by tides, accumulated fine-grained sediments (average thickness of 3 m) highly enriched in organic carbon (OC, mean 11 % but up to 49 %) derived from hydrocarbons, sewage, coal, char, and biomass, along …
Analytical Pyrolysis Principles And Applications To Environmental Science, Michael A. Kruge
Analytical Pyrolysis Principles And Applications To Environmental Science, Michael A. Kruge
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Over the past half century, analytical pyrolysis has proven itself to be an effective means for the semiquantitative characterization of complex macromolecular organic substances. It has been demonstrated that instruments such as Py-FID, Py-MS, and in particular, Py-GC/MS can provide valuable geochemical insights when applied to a wide variety of problems in environmental science. The more widespread use of analytical pyrolysis methods in the evaluation of environmental pollution is recommended, because of their relatively low cost and information-rich results.
Pyrolysis is the heating of organic substances in an inert, oxygen-free atmosphere, thereby avoiding combustion. When performed on a large scale, …