Nitrogen Dioxide, Sulfur Dioxide, and Ammonia Detector for Remote Sensing of Vehicle Emissions

Authors

Daniel A. Burgard, University of Puget Sound
Thomas R. Dalton, University of Denver
Gary A. Bishop, University of DenverFollow
John R. Starkey, University of Denver
Donald H. Stedman, University of Denver

Publication Date

2006

Document Type

Article

Organizational Units

Chemistry and Biochemistry

Keywords

Atmospheric chemistry, Emissions, Pollutants

Abstract

A remote sensor for measuring on-road vehicles passing the sensor in real time is described. This sensor expands upon previous technology that measured carbon monoxide, carbon dioxide, and exhaust hydrocarbons in the IR and nitric oxide in the UV. The design adds the capability to measure nitrogen dioxide in the UV with one spectrometer and to measure SO₂ and NH₃ along with NO in a second UV spectrometer. With these units operating side by side, the major mobile source precursors to secondary aerosol production can be measured simultaneously and in real time. Detection limits for NO₂,SO₂, and NH₃are 1.2, 0.72, and 0.78 g pollutant per kilogram of fuel, respectively.

Recommended Citation

Burgard, D. A.; Dalton, T. R.; Bishop, G. A.; Starkey, J. R.; Stedman, D. H., Nitrogen dioxide, sulfur dioxide, and ammonia detector for remote sensing of vehicle emissions. Rev. Sci. Instrum. 2006, 77, (014101), 1-4, DOI: 10.1063/1.2162432.