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KMID : 1024520160250050673
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Journal of the Environmental Sciences
2016 Volume.25 No. 5 p.673 ~ p.681
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Evaluation of Air Pollution Monitoring Networks in Seoul Metropolitan Area using Multivariate Analysis
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Choi Im-Jo
Jo Wan-Kuen
Shin Seung-Ho
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Abstract
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The adequacy of urban air quality monitoring networks in the largest metropolitan city, Seoul was evaluated using
multivariate analysis for SO2, NO2, CO, PM10, and O3. Through cluster analysis for 5 air pollutants concentrations, existing monitoring stations are seen to be clustered mostly by geographical locations of the eight zones in Seoul. And the stations included in the same cluster are redundantly monitoring air pollutants exhibiting similar atmospheric behavior, thus it can be seen that they are being operated inefficiently. Because monitoring stations groups representing redudancy were different depending on measurement items and several pollutants are being measured at the same time in each air monitoring station, it is seemed to be not easy to integrate or transmigrate stations. But it may be proposed as follows : the redundant stations can be integrated or transmigrated based on ozone of which measures are increasing in recent years and alternatively the remaining pollutants other than the pollutant exhibiting similar atmospheric behavior with nearby station’s can be measured. So it is considered to be able to operate air quality monitoring networks effectively and economically in order to improve air quality.
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KEYWORD
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Air quality monitoring networks, Cluster analysis, Geographical locations, Ozone
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