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Deriving Water Quality Criteria of Total Nitrogen for Nutrient Management in the Stream

하천에서의 영양물질 관리를 위한 총질소 환경기준 설정에 관한 연구

  • Kim, Hak Kwan (Institute of Green Bio Science and Technology, Seoul National University) ;
  • Jeong, Han (Institute of Green Bio Science and Technology, Seoul National University) ;
  • Bae, Seung Jong (Institute of Green Bio Science and Technology, Seoul National University)
  • Received : 2015.05.20
  • Accepted : 2015.05.27
  • Published : 2015.05.30

Abstract

The objective of this study is to suggest the water quality criteria of total nitrogen in order to efficiently manage the nutrient pollution in the stream. For this, correlations between water quality parameters were examined using the water quality data collected from the water quality monitoring network in the four rivers between 2003 and 2012. T-N showed positive correlations with T-P (0.636), COD (0.577), BOD (0.574), TOC (0.440), and SS (0.367). The statistical analysis including percentile analysis for the T-N and T-P concentrations was utilized to develop the water quality criteria of T-N. The feasibility of the suggested water quality criteria was evaluated by calculating the achievement rate to water quality target at the representative points in mid-watershed, then the draft water quality standard of T-N was suggested. The suggested water quality standard of T-N in the stream may be used to efficiently control the nutrient pollution in the public water body.

Keywords

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