미세먼지(PM10)와 초미세먼지(PM2.1)의 농도와 폐포 침착율 조사 (Investigation of the Concentration of PM2.1 & PM10 and Alveolar Deposition Ratio)

서지정보

· 발행기관 : 한국환경보건학회
· 수록지 정보 : 한국환경보건학회지 / 45권 / 2호 / 126 ~ 133페이지
· 저자명 : 김성천

초록

Objectives: In this study, a nine-stage cascade impactor was used to collect dust, and the concentration of PM2.1& PM10 and alveolar deposition ratio were investigated.
Methods: This study was conducted at Kunsan National University from May to June 2016. A nine-stage Cascade Impactor was used to analyze the concentrations of fine and ultrafine dust and to estimate the alveolar deposition rate by particle size of atmospheric dust particles. The pore size of each stage of the collector used in this study gradually increased from F to 0, with the F-stage as the last stage.
Results: The mass fraction of PM showed a bimodal distribution divided into PM2.1 & PM10 based on 2.1-3.1 µm. The average mass fraction of particulate matter in the range of 2.1-3.1 µm was 44%, and the area occupied by PM 2.1 was similar. Therefore, the Gunsan area is considered to be a region where there are similar effects from anthropogenic and natural sources.
Conclusion: Dust collecting efficiency increased with the stage of collecting fine dust, and the efficiency of collection was very low at the stage of collecting ultra-fine dust. The seasonal overall efficiency of the Cascade Impactor was 44% in spring and 37.4% in summer, and the average overall efficiency was 40.7%. The alveolar deposition rate of PM2.1/PM10during the sampling period was estimated to be about 75%deposited in the alveoli.

영어초록

Objectives: In this study, a nine-stage cascade impactor was used to collect dust, and the concentration of PM2.1& PM10 and alveolar deposition ratio were investigated.
Methods: This study was conducted at Kunsan National University from May to June 2016. A nine-stage Cascade Impactor was used to analyze the concentrations of fine and ultrafine dust and to estimate the alveolar deposition rate by particle size of atmospheric dust particles. The pore size of each stage of the collector used in this study gradually increased from F to 0, with the F-stage as the last stage.
Results: The mass fraction of PM showed a bimodal distribution divided into PM2.1 & PM10 based on 2.1-3.1 µm. The average mass fraction of particulate matter in the range of 2.1-3.1 µm was 44%, and the area occupied by PM 2.1 was similar. Therefore, the Gunsan area is considered to be a region where there are similar effects from anthropogenic and natural sources.
Conclusion: Dust collecting efficiency increased with the stage of collecting fine dust, and the efficiency of collection was very low at the stage of collecting ultra-fine dust. The seasonal overall efficiency of the Cascade Impactor was 44% in spring and 37.4% in summer, and the average overall efficiency was 40.7%. The alveolar deposition rate of PM2.1/PM10during the sampling period was estimated to be about 75%deposited in the alveoli.

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