Examination of the long-path open-air FTIR technique for air monitoring in the state of Kentucky

Dilip K. Chakraborty

doi:10.1117/12.210819

31 May 1995 Examination of the long-path open-air FTIR technique for air monitoring in the state of Kentucky

Dilip K. Chakraborty

Proceedings Volume 2365, Optical Sensing for Environmental and Process Monitoring; (1995) https://doi.org/10.1117/12.210819
Event: Optical Sensing for Environmental and Process Monitoring, 1994, McLean, VA, United States

Abstract

The Kentucky Department for Environmental Protection has been developing on-site monitoring capability for the measurement of air pollutants. The department has purchased a mobile laboratory equipped with a GC/MS for point monitoring and a long-path Fourier transform infrared (FT-IR) remote sensor unit for monitoring air pollutants at different locations in the State. Prior to deploying the FT-IR instrument in the field, the instrument has been evaluated for precision and accuracy with 15 certified gases (CO, NO, NH₃, COS, CS₂, SO₂, (CH₃)₂S, acetone, benzene, CH₃OH, CH₄, CCl₄, CCl₃H, C₂H₅OH, and H₂S) against the vendor provided calibration spectra by using a 15 cm quality control internal cell. Results of this study are presented. Some other studies include the cases of strong spectral overlaps and structured spectral features. Results of some short-term field study at Calvert City, Western Kentucky are also presented.

Citation Download Citation

Dilip K. Chakraborty "Examination of the long-path open-air FTIR technique for air monitoring in the state of Kentucky", Proc. SPIE 2365, Optical Sensing for Environmental and Process Monitoring, (31 May 1995); https://doi.org/10.1117/12.210819

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