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자동차 선적작업장의 공기오염 실태조사

Other Titles
 Investigation into air pollution in car shipping workshop 
Authors
 김지호  ;  원종욱  ;  김치년  ;  노재훈 
Citation
 Journal of Korean Society of Occupational and Environmental Hygiene (한국산업위생학회지), Vol.16(1) : 44-53, 2006 
Journal Title
Journal of Korean Society of Occupational and Environmental Hygiene(한국산업위생학회지)
ISSN
 1226-4326 
Issue Date
2006
Keywords
SO2 ; NO2 ; CO ; Car shipping ; air pollution ; questionnaire survey ; subjective respiratory symptoms
Abstract
This study purposed to investigate air pollution in car shipping yards and, for this purpose, we selected an outdoor open-air yard and an indoor ramp into the ship and measured the concentrations of sulfur dioxide, nitrogen dioxide, carbon monoxide, PM10, PM2.5 and heavy metals in the air. The results of this study are as follows. No significant difference was observed in temperature and humidity between the outdoor and indoor workshop, and the average air flow was 0.52 m/s in the indoor workshop, which is higher than 0.19 m/s in the outdoor workshop(p<0.01). The average concentrations of sulfur dioxide, nitrogen dioxide, carbon monoxide, PM10 and PM2.5 according to workplace were 0.03 ppm(±0.01), 0.03 ppm(±0.01), 0.46 ppm(±0.22), 39.44 μg/m3(±2.45) and 5.45 μg/m3(±1.15) respectively in the outdoor workshop, and 0.15 ppm(±0.05), 0.22 ppm(±0.06), 8.85 ppm(±3.35), 236.39 μg/m3(±58.21) and 152.43 μg/m3(±35.42) respectively in the indoor workshop. Thus, the concentrations of gaseous substances in the indoor workshop were 4.9-19.2 times higher than those in the outdoor workshop, and the concentrations of fine dusts were 5.9-27.9 times higher(p<0.01). In addition, according to the result of investigating pollutant concentrations according to displacement and the number of car loaded when shipping gasoline cars into the ship, no significant relation between the number of cars loaded and pollutants was observed in shipping passenger cars, but the concentrations of nitrogen dioxide and carbon monoxide got somewhat higher with the increase of the number of cars loaded(p<0.05). In addition, the concentrations of nitrogen dioxide, carbon monoxide, PM10 and PM2.5 in the air were significantly higher when shipping recreational vehicles, the displacement of which is larger than passenger cars, than when shipping passenger cars(p<0.01). On the other hand, the average heavy metal concentrations of the air in indoor workshop were: lead-0.05 μg/m3(±0.10); chromium-0.90 μg/m3(±0.18); zinc-0.38 μg/m3(±0.24); copper-0.18 μg/m3(±0.22); and manganese and cadmium not detected. In addition, the complaining rates of `asthma,` a major symptom of chronic respiratory diseases, were 18.5% and 22.5% respectively in indoor workers and outdoor workers. Thus the rate was somewhat higher in indoor workers but the difference was not statistically significant. The complaining rates of `chronic cough` and `chronic phlegm` were very low and little different between indoor and outdoor workers. The results of this study show that the reason for the higher air pollution in indoor than in outdoor workshop is incomplete combustion of fuel due to sudden start and over-speed when cars are driven inside the ship. In order to prevent high air pollution, efficient management measures should be taken including the observance of the optimal speed, the improvement of old ships and the installation of efficient ventilation system.
Files in This Item:
T200600325.pdf Download
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Occupational and Environmental Medicine (작업환경의학과) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학교실) > 1. Journal Papers
Yonsei Authors
Roh, Jae Hoon(노재훈)
Won, Jong Uk(원종욱) ORCID logo https://orcid.org/0000-0002-9200-3297
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/109130
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