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Ecological modeling for the prediction and management of water quality in coastal seas of Korea
이대인(Dae In Lee),박청길(Chung Kil Park),최영찬(Young Chun Choi),이석모(Suk Mo Lee),조은일(Eun Il Cho) 한국해양환경·에너지학회 2004 한국해양환경공학회 학술대회논문집 Vol.2004 No.-
To aid in effectively managing the water quality of coastal areas, we used an eco-hydrodynamic model to predict summer water quality and to estimate the reduction in pollutant loads required to recover water quality. Under current environmental conditions, chemical oxygen demand (COD) exceeded seawater quality criteria, and water conditions were eutrophic. When we reduced the terrestrial COD, nitrogen, and phosphorus loads by 90%, the water quality criteria of Region A (Chinhae Bay) were not satisfied. However, when the nutrient loads from sediment and land were each reduced by 70% simultaneously, COD and Chl-α were recovered. When we reduced the input COD and nutrient loads from the Nakdong River by 80%, Chl-α and COD of Region B (Estuary of the Nakdong River) decreased below 10 ㎍ 1?¹ and 2 ㎎ 1?¹, respectively. The water quality criteria of Region C (Coastal sea of Busan) were satisfied when we reduced the terrestrial COD and nutrient loads by 70%. To achieve the reduction in pollutant loads, sustainable countermeasures, which include the expansion of sewage and wastewater facilities, sediment control, and limited land use, are necessary.