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KMID : 1039220170270010070
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Journal of Korean Society of Occupational and Environmental Hygiene
2017 Volume.27 No. 1 p.70 ~ p.76
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Reduction Effect of Air Cleaner on Particulate Matters and Biological Agents in a Swine Facility
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Kim Ki-Youn
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Abstract
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Objectives: This on-site study was performed to evaluate the reduction efficiency of an air cleaner on particulate matters and biological agents in a swine facility.
Materials and Methods: Particulate matter was measured using a real-time monitoring recorder and biological agents were sampled with a one-stage impactor and then analyzed based on the microbial culture method. An experimental process for the reduction effect on airborne pollutants through air cleaner operation consisted of three conditions: no treatment, wet scrapper by water spray and wet scrapper by disinfectant spray.
Results: Geometric mean levels of particulate matter(TSP, PM10, PM2.5 and PM1) were presented at 1,608 ㎍/㎥, 1,373.8 ㎍/㎥, 401.8 ㎍/㎥ and 144.5 ㎍/㎥ for no treatment; 1,503 ㎍/㎥, 1,017 ㎍/㎥, 159.4 ㎍/㎥ and 69.8 ㎍/㎥ for wet scrapper by water spray; and 1,222.17 ㎍/㎥, 477.17 ㎍/㎥, 33.2 ㎍/㎥ and 11.1 ㎍/㎥ for wet scrapper by disinfectant spray, respectively. In the case of biological agents, the geometric averaged concentrations of total airborne bacteria and fungi were as follows: 45,371 cfu/㎥ and 13,474 cfu/㎥ for no treatment, 43,286 cfu/㎥ and 8,610 cfu/㎥ for wet scrapper by water spray, and 2,440 cfu/㎥ and 1,867 cfu/ for wet scrapper by disinfectant spray, respectively. Regardless of particulate matter and biological agent, the highest concentrations were found for no treatment, while the lowest concentrations were found with wet scrapper by disinfectant spray.
Conclusions: Based on the results obtained from this on-site evaluation, there was a significant reduction effect on particulate matter and biological agents through the application of an air cleaner in this study.
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KEYWORD
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air cleaner operation, particulate matter, airborne microorganisms, swine facility
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