RAVEM portable emission measurement systems and Compact SCR systems for diesel vehicles and equipment, including locomotives and marine vessels. On-site emission measurement services for diesel vehicles and equipment. Consulting and R&D.

RAVEM portable emission measurement system for PM, NOx, CO, CO2, other pollutants. FTIR for measurement of ammonia and N2O.

engine fuel emissions, air pollution, emission measurement, emission testing, diesel, gasoline, cng, lng, locomotive, air quality, environmental policy, environmental consulting, selective catalytic reduction, scr, mobile source

ef&ee: research, development, and consulting firm specializing in the measurement and control of mobile source emissions,conventional and alternative fuels, and air quality issues worldwide.