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KMID : 1024520180270070587
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Journal of the Environmental Sciences
2018 Volume.27 No. 7 p.587 ~ p.595
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Characteristics of NO and NO2 at Roadside and Urban Residential Locations in Busan
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Jeon Byung-Il
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Abstract
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This research investigated the characteristics of NO and NO2 concentration at roadside (Choryangdong) and residential
(Sujeongdong) locations in Busan. The NO concentration at roadside and residential were 34.7 and 8.0 ppb, respectively, and NO2 at roadside and residential were 31.6 and 18.0 ppb / , respectively. The NO concentration was the highest in winter at roadside at 37.1 ppb, followed by 35.0 ppb and 34.0 ppb in summer and fall, respectively. NO2 concentration was the highest in spring at roadside at 39.6 ppb, followed by 30.4 ppb and 28.3 ppb in fall and winter, respectively. Number of exceedances per year of 1 hr limit value (0.10 ppm) for NO2 at roadside and residential were 3,585 and 3 hours, respectively. Number of exceedances per year of 24 hr limit value (0.06 ppm) for NO2 at roadside and residential were 32 and 1 days, respectively. Number of exceedances per year of 1 hr limit value (0.1 ppm) for O3 at roadside and residential were 1 and 14 days, respectively. These results indicated that understanding the relationship between roadside and residential could provide insight into establishing a strategy to control urban air quality.
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KEYWORD
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Roadside, Residential, NO and NO2 concentration, O3
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