Monitoring technology of gas concentration in fumigation: a review

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Fumiscope
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Published: Jun 3, 2026
Keywords:
fumigation gas concentration fumigation concentration monitoring gas sensor

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Chukiat Chotikasatian
Industrial Education, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000
https://orcid.org/0000-0001-6361-0277
Atiwat Boonmee
Department of Industrial Engineering, Faculty of Engineering at Kamphaeng Saen, Kasetsart University - Kamphaeng Saen Campus, Nakon Pathom, 73140
Woraya Neungmatcha
Department of Industrial Engineering, Faculty of Engineering at Kamphaeng Saen, Kasetsart University - Kamphaeng Saen Campus, Nakon Pathom, 73140
Watcharapol Chayaprasert
Department of Agricultural Engineering, Faculty of Engineering at Kamphaeng Saen, Kasetsart University - Kamphaeng Saen Campus, Nakon Pathom, 73140
https://orcid.org/0000-0003-1337-9980

Abstract

   Fumigation is one of the most effective methods for controlling insect pests and reducing postharvest losses in stored products. Since accurate measurements of fumigant concentrations are keys to achieving high fumigation efficacy and ensuring personnel safety, this review article aims to provide overall understanding of different technologies in fumigant gas sensors. The working principles as well as criteria for selecting fumigant monitoring devices are discussed. The types of devices discussed include colorimetric tubes, thermal conductivity sensors, electrochemical sensors, non-dispersive infrared sensors and optical interferometers. This article primarily focuses on efficacy monitoring, while briefly addresses safety/clearance monitoring to provide contextual comparisons. Future trends toward integrated monitoring systems and wireless sensors are also discussed.

Article Details

How to Cite
Chotikasatian, C., Boonmee, A., Neungmatcha, W., & Chayaprasert, W. (2026). Monitoring technology of gas concentration in fumigation: a review. Thai Society of Agricultural Engineering Journal, 32(1), 21–30. retrieved from https://li01.tci-thaijo.org/index.php/TSAEJ/article/view/270961
Issue
Vol. 32 No. 1 (2026)
Section
Post-harvest and food engineering
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Author Biography

Chukiat Chotikasatian, Industrial Education, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom, 73000

Research program focuses on techniques and equipment utilization for measuring biological activities in storage systems of agricultural commodities based on CO2/O2 concentrations, the reduction of post-harvest loss. My goal in research is to provide criteria for verification that insect populations have reached an unacceptable level. This focus will be useful to pest fumigators and feed manufactures as they have a decision support to fumigate grain bin and other grain storage structures. I am confident that the engineered technologies for the protection of stored products are the most powerful tool we have but they have to be studied to find a suitable method to handle. Additionally, I am also focusing on agricultural product drying and intelligent drying systems.

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