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http://dx.doi.org/10.13047/KJEE.2019.33.3.354

Evaluation of Pedestrian Space Ion Index by Land Use Type in Heat wave - Focused on ChungJu -  

Yoon, Yong Han (Department of Green Environment System, Konkuk Univ.)
Yoon, Ji Hun (Department of Green Technology Convergence, Graduate School, Konkuk Univ.)
Kim, Jeong Ho (Department of Green Environment System, Konkuk Univ.)
Publication Information
Korean Journal of Environment and Ecology / v.33, no.3, 2019 , pp. 354-365 More about this Journal
Abstract
This study measured and analyzed the weather characteristics and the air-ion characteristics of walking space by land use type in Chungju, Chungcheongbuk Province during the heat wave. We used the land registration map to classify the type of land use in walking areas in the studied into the production and green area, the residential area, and the commercial area. We then selected 44 measurement points in about 4.1 km. They included 12 walking space points in the green area, 14 in the residential area, and 18 in the commercial area. Moreover, we calculated the ion index by analyzing the impact of weather factors such as temperature, relative humidity, solar radiation, and net radiation in the walking space on the anion generation and cation generation by land use type during the heat wave. Comparison of air ion characteristics in walking space by type of land use during the heat wave showed that the average cation generation was in the order of commercial area ($700.73cations/cm^3$) > residential area ($600.76cations/cm^3$) > green area ($589.73cations/cm^3$). The average anion generation was in the order of green area ($663.95anions/cm^3$) > residential area ($628.48anions/cm^3$) > commercial area ($527.48anions/cm^3$). The average ion index was in the order of green area (1.13) > residential area (1.04) > commercial area (0.75). This study checked the weather characteristics, cation generation, and anion generation in walking space according to the land use type during the heat wave and checked the difference of ion indexes in the walking space according to the land use type. However, there were limitations in the lack of accurate comparison according to the land use due to the moving measurement and the insufficient quantitative comparison according to the change of road width. Therefore, we recommend further studies that consider the road characteristics.
Keywords
TEMPERATURE; POSITIVE AIR ION; NEGATIVE AIR ION; STREET GREENERY;
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