Differential optical absorption spectroscopy system used for atmospheric mercury monitoring
- 1 February 1986
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 25 (3) , 403-409
- https://doi.org/10.1364/ao.25.000403
Abstract
A high-resolution differential optical absorption spectroscopy (DOAS) system for long-path atmospheric pollution monitoring is described. The system, consisting of a broadband lamp and a dispersive, fast-scanning optical receiver, separated by a few kilometers, was used in measurements of different pollutants, highlighted by the monitoring of the local concentration of atomic mercury. Mercury levels in the ppt (1:1012) range were assessed by comparisons with laboratory measurements.Keywords
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