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KMID : 1024520160250111499
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Journal of the Environmental Sciences
2016 Volume.25 No. 11 p.1499 ~ p.1509
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Analysis of Non-Point Source Pollution Reduction using Water Sensitive Urban Design in Gimhae, South Korea
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Jung Kang-Young
Kim Shin
Kwon Hun-Gak
Yang Duk-Seok
Kim Kyo-Sik
Jang Kwang-Jin
Shin Dong-Seok
Ahn Jung-Min
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Abstract
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This study was performed to analyze the effects of a water circulation green area plan on non-point source pollution in Gimhae South Korea. A quantitative analysis of Arc-GIS data was conducted by applying a watershed model based on Fortran to investigate the changes to direct runoff and pollution load. Results showed that prior to the implementation of the water circulation green area plan in Gimhae, direct runoff was 444.05 m3/year, total biological oxygen demand (BOD) pollution load was 21,696 kg/year, and total phosphorus (TP) pollution load was 1,743 kg/year. Implementation of the development plan was found to reduce direct runoff by 2.27%, BOD pollution load by 1.16% and TP pollution load by 0.19% annually. The reduction in direct runoff and non-point source pollution were attributed to improvements in the design of impermeable layers within the city.
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KEYWORD
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Non-point source pollution load, Gimhae, Direct runoff, Water sensitive urban design
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