Airborne particle emissions from 2- and 4-stroke outboard marine engines: polycyclic aromatic hydrocarbon and bioassay analyses

Article Abstract:

Researchers from the U.S. analyzed the total airborne emission from a carbureted or fuel injected 2-stroke watercraft engine and a 4-stroke marine engine at a test facility in El Monte, CA. Results reveal that a 2-stroke marine engine emit more polycyclic aromatic hydrocarbons into the air than a 4-stroke engine.

Engines and Turbines, Marine Engines & Turbines, Engine, Turbine, and Power Transmission Equipment Manufacturing, Aromatic Hydrocarbons NEC, Machinery industry, California, Aromatic hydrocarbons

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Bioaugmentation for accelerated in situ anaerobic bioremediation

Article Abstract:

Researchers from the DuPont Co., Terra Systems Inc., General Electric Co., and the University at Albany-SUNY performed a bioaugmentation experiment in an aquifer contaminated by trichloroethene (TCE) at Dover Air Force Base, DE, using a microbial mixed culture that dechlorinates TCE to ethene.

Chlorinated Aromatics NEC, Buildings and facilities, General Electric Co., GE, E.I. du Pont de Nemours and Co., Chlorocarbons, Aromatic compounds, Dover Air Force Base, Delaware, Terra Systems

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Slurry-phase biological treatment of 2,4-dinitrotoluene and 2,6-dinitrotoluene: role of bioaugmentation and effects of high dinitrotoluene concentrations

Article Abstract:

Researchers from Rice University, TX, and Tyndall Air Force Base, FL, demonstrated the degradation of dinitrotoluenes in highly contaminated soils from two ammunition plants in Chattanooga, TN and Baraboo, WI, using an aerobic slurry reactor.

Dinitrotoluene, Rice University, Chattanooga, Tennessee, Baraboo, Wisconsin

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