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标题：Temporal and Spatial Pollution Characteristics of Ambient Criteria Pollutants in Metropolitan and Industrial Cities of Daegu-Gyeongbuk Area
其他标题：대구-경북지역 광역대도시와 산업도시 환경기준 대기오염물질의 시간적 및 공간적 오염도 특성
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作者：Hyun-Cheol Lee ; Wan-Kuen Jo ; Jong-Tae Kim 等
期刊名称：Environmental Health and Toxicology
电子版ISSN：2233-6567
出版年度：2007
卷号：22
期号：4
语种：English
出版社：Korean Society of Environmental Health and Toxicology
摘要：This studly considers the characteristics of nitrogen dioxide (NO2),ozone (O) and sulfur dioxide (SO2) in three cities of Daegu-Gycongbuk Area (Dacgu,Pohang. and Gumi). which have dilerent city or indusrial characteristics,over a time period of 2 years. The diurnal,weekly,monthly and seasonal concentration variations of critcria air pollutants were attributed to compounds or city lypes. However,the seasonal varatioms of O;concentrations were dpendent on compounds,but not on eity types. Lower Os concentrations were olbserved in July when comparing with other sumner months. For SOz and NOz,the concentrations were higher in Daegu when compured lo Pohang and Gumi,while the cocentrations of Os were higher in Pohang and Gumi. SO: exhibited higher levels in the moming hours,while O3 and NO2 exhibited higher levels in the alfternoon hours for all cities. For O,the concentrations observed during Sunday were higher than those of other week or weckend days. Futherrmore,the monthly and seasonal concentration variations of air pollutants depended on compounds or cilty lypes. It is noteworthy that the curent monthly and seasonal variations were consisent with several previous studics.
关键词：citeria pllutants;diumnal variation;weekly. monthly;seasonal;city type