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KMID : 1156220170430020122
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Journal of Environmental Health Sciences
2017 Volume.43 No. 2 p.122 ~ p.129
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A Study on PM10 Control in Subway Tunnels Using Natural Polysaccharide Dust Collecting Agent
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Lee Han-Seob
Hwang Su-Jin
Hwang Hyun-Seok
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Abstract
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Objectives: Most of the PM10 in subway stations is spread by the train-induced wind from the tunnels. Therefore, in order to improve air quality in subway stations, it is important to remove the PM10 from the tunnels. After the installation of PSD (platform screen doors), the influence of train-induced wind and PM10 at the platform has decreased, but is estimated to have increased in subway tunnels. This study was conducted to investigate the control of PM10 in subway tunnels by applying a 500-fold diluted solution mixed with a humectant using a natural polymer.
Methods: For this purpose, we tested the dust reduction effect in a laboratory and corrosion test and water pollution using fish and aquatic plants for the natural dust collecting agent. In the tunnel of a subway station, we used the natural dust collecting agent over 15 days. The study was carried out on PM10 control during operation, which accounts for more than 70% of subway dust.
Results: As results, the natural dust collecting agent exhibited an excellent dust control effect, and it was safe for water quality and soil. It showed the effect of controlling PM10 in the subway tunnel by 49.5- 64.7% over 15 days. The use of the dust collecting agent for the control of PM10 could be confirmed in the subway.
Conclusion: It is necessary to clearly explain the major portions of chemical components contained in PM10 to figure out the characteristics of PM10 and to develop effective reduction measures to decrease the adverse effects of PM10 in the subway.
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KEYWORD
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Natural polysaccharide dust collecting agent, PM10 , Fe, natural polymer, subway tunnel
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