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Effects of Water Removal Devices on Ambient Inorganic Air Pollutant Measurements

Author

Listed:
  • Dong-June Kim

    (Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Korea)

  • Trieu-Vuong Dinh

    (Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Korea)

  • Joo-Yeon Lee

    (Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Korea)

  • In-Young Choi

    (Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Korea)

  • Dong-Jin Son

    (Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Korea)

  • In-Young Kim

    (Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Korea)

  • Young Sunwoo

    (Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Korea)

  • Jo-Chun Kim

    (Department of Civil and Environmental Engineering, Konkuk University, Seoul 05029, Korea)

Abstract

Water vapor is a pivotal obstacle when measuring ambient air pollutants. The effects of water vapor removal devices which are called KPASS (Key-compound PASSer) and Cooler. On the measurement of O 3 , SO 2 , and CO at ambient levels were investigated. Concentrations of O 3 , SO 2 , and CO were 100 ppb, 150 ppb, and 25 ppm, respectively. The amount of water vapor varied at different relative humidity levels of 30%, 50%, and 80% when the temperature was 25 °C and the pressure was 1 atm. Water vapor removal efficiencies and recovery rates of target gases were also determined. The KPASS showed a better performance than the Cooler device, removing 93.6% of water vapor and the Cooler removing 59.2%. In terms of recovery, the KPASS showed a better recovery of target gases than the Cooler. Consequently, it is suggested that the KPASS should be an alternative way to remove water vapor when measuring O 3 , SO 2 , and CO.

Suggested Citation

  • Dong-June Kim & Trieu-Vuong Dinh & Joo-Yeon Lee & In-Young Choi & Dong-Jin Son & In-Young Kim & Young Sunwoo & Jo-Chun Kim, 2019. "Effects of Water Removal Devices on Ambient Inorganic Air Pollutant Measurements," IJERPH, MDPI, vol. 16(18), pages 1-9, September.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:18:p:3446-:d:267841
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