Methodology for Comparison of Open-Path Monitors with Point Monitors
Open Access
- 1 November 1974
- journal article
- research article
- Published by Taylor & Francis in Journal of the Air Pollution Control Association
- Vol. 24 (11) , 1044-1046
- https://doi.org/10.1080/00022470.1974.10470010
Abstract
The first measurements of a dispersed secondary pollutant (O3) using a CO2 laser based, open-path monitor are compared to readings from a chemiluminescence point monitor which traverses a common measurement path of 0.67 km. A statistical treatment is given which establishes the accuracy of comparison. Meteorological conditions as reflected by changes in pollutant variability are shown to influence the accuracy of comparison. The essential equivalence of data obtained by the point monitor and the path monitor is confirmed for selected measurement sequences while other measurement sequences identify non-optimized performance of the path monitor.Keywords
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