Use of an Opsis open-path monitor for ambient aldehyde monitoring

R. Michael Hartman; Alan R. Leston

doi:10.1117/12.210794

31 May 1995 Use of an Opsis open-path monitor for ambient aldehyde monitoring

R. Michael Hartman, Alan R. Leston

Proceedings Volume 2365, Optical Sensing for Environmental and Process Monitoring; (1995) https://doi.org/10.1117/12.210794
Event: Optical Sensing for Environmental and Process Monitoring, 1994, McLean, VA, United States

Abstract

An OPSIS differential optical absorption spectrometer (UV-DOAS) open path demonstration system was operated over a 7 week period at an urban air monitoring site in East Hartford, CT. The study purpose was primarily to compare acetaldehyde and formaldehyde from the OPSIS to extractive data gathered by use of coated cartridges under an EPA recognized method at the same site. A secondary goal was to compare benzene, toluene, NO₂, and O₃ OPSIS open path data to data gathered by methods currently approved or recognized by the EPA. This was the first field test for acetaldehyde, and the study showed that OPSIS was not able to detect ambient acetaldehyde concentrations. However, the system was able to measure ambient levels of the other 5 pollutant parameters. The correlation of OPSIS data was excellent for O₃ and NO₂ and less well correlated for formaldehyde, benzene and toluene. The paper describes the monitoring equipment operational characteristics, equipment deployment, and calibration, and data comparison results. A brief summary is given on suggested improvements and retesting requirements.

Citation Download Citation

R. Michael Hartman and Alan R. Leston "Use of an Opsis open-path monitor for ambient aldehyde monitoring", Proc. SPIE 2365, Optical Sensing for Environmental and Process Monitoring, (31 May 1995); https://doi.org/10.1117/12.210794

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available