New Data Processing Equation to Improve the Response Time of an Electrochemical Concentration Cell (ECC) Ozonesonde

Li-Jen Huang; Ming-Jen Chen; Chin-Hsing Lai; Hui-Tsung Hsu; Ching-Ho Lin

doi:10.4209/aaqr.2014.05.0097

New Data Processing Equation to Improve the Response Time of an Electrochemical Concentration Cell (ECC) Ozonesonde

Air Pollution Modeling

Li-Jen Huang¹, Ming-Jen Chen¹, Chin-Hsing Lai², Hui-Tsung Hsu³, Ching-Ho Lin ²

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¹Department of Occupational Safety and Hygiene, Fooyin University, Kaohsiung, Taiwan
²Department of Environmental Engineering and Science, Fooyin University, Kaohsiung, Taiwan
³Department of Health Risk Management, China Medical University, Taichung, Taiwan

Received: May 17, 2014
Revised: September 14, 2014
Accepted: November 11, 2014
Download Citation: ||https://doi.org/10.4209/aaqr.2014.05.0097

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Cite this article:
Huang, L.J., Chen, M.J., Lai, C.H., Hsu, H.T. and Lin, C.H. (2015). New Data Processing Equation to Improve the Response Time of an Electrochemical Concentration Cell (ECC) Ozonesonde. Aerosol Air Qual. Res. 15: 935-944. https://doi.org/10.4209/aaqr.2014.05.0097

HIGHLIGHTS

A new non-steady state data processing equation for an ozonesonde.
The new equation includes the effect correction of the response time.

ABSTRACT

Ozone concentrations of an electrochemical concentration cell (ECC) ozonesonde determined using a data processing equation typically lag changes in the concentrations of ozone sampled into an ECC by 20–40 s. This work develops a new equation for determining ozone concentrations of an ECC ozonesonde so that the determined ozone concentrations can respond relatively quickly to changes in the concentrations of the ozone sampled into the ECC. The new equation is derived by examining the chemical reaction rates and transport limits of related species and electrons in an ECC. To demonstrate the power of the new equation, an ECC is exposed to prescribed variations of ozone concentrations. The variations of the ozone concentrations of an ECC that are determined using both the new and the old equations are compared to the prescribed ozone variations. The results demonstrate that the ozone concentrations that are determined using the new equation responds approximately 50% faster to the prescribed ozone variations than do those obtained using the old equation.

Keywords: Ozone; Ozonesonde; Response time; ECC; Vertical