Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 7, issue 12
Articles | Volume 7, issue 12
https://doi.org/10.5194/amt-7-4251-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/amt-7-4251-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 7, issue 12
Research article
 | 
08 Dec 2014
Research article |  | 08 Dec 2014

Deployment of a sequential two-photon laser-induced fluorescence sensor for the detection of gaseous elemental mercury at ambient levels: fast, specific, ultrasensitive detection with parts-per-quadrillion sensitivity

D. Bauer, S. Everhart, J. Remeika, C. Tatum Ernest, and A. J. Hynes

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Short summary
An understanding of the biogeochemical cycling of mercury is an important health issue. Exposure to mercury is primarily through fish consumption. The typical background concentration of Hg(0) is ~200 ppq; hence atmospheric measurements represent a significant challenge in ultratrace analytical chemistry. We developed a laser-based sensor for detection of gas-phase elemental mercury, Hg(0), that is capable of fast in-situ measurements at ambient levels and can also measure oxidized mercury.
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