Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Prediction of BaP and Total PAH in Soil from Pyr Concentration using Regression Analysis

회귀분석을 통한 토양 내 Pyr 농도로부터 BaP와 총 PAH의 예측기법

  • Lee, Woo-Bum (Department of Environmental System Engineering, Chonnam National University) ;
  • Kim, Jongo (Department of Environmental Education, Mokpo National University)
  • 이우범 (전남대학교 환경시스템공학과) ;
  • 김종오 (목포대학교 환경교육과)
  • Received : 2016.04.04
  • Accepted : 2017.02.28
  • Published : 2017.03.31
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Abstract

This study investigated the feasibility of a statistical approach for the prediction of BaP and total PAHs as pyrogenic sources. As results of regression, excellent linear and multiple correlations ($r^2$ > 0.94) were observed between BaP (or ${\Sigma}PAH$) and Pyr concentrations. When a developed prediction equation was applied to other investigations as validation and application studies, outstanding prediction results were obtained. The predictive model showed very good correlation between the measured and calculated ${\Sigma}PAH$. From this equation, Pyr was an apparently important hydrocarbon for the prediction of PAH. This model might provide a potentially useful tool for the calculation of average BaP and ${\Sigma}PAH$ in a certain region without additional tests.

본 연구에서는 기존에 발표된 PAH 데이터 세트를 이용하여 BaP와 총 PAH의 예측을 위하여 통계적 분석을 시행하였다. 선형회귀 및 다중회귀 분석 결과, Pyr과 BaP ($R^2=0.94$), Pyr과 ${\Sigma}PAH$ ($R^2=0.99$) 사이에 매우 높은 상관성을 보여주었다. 개발된 회귀식을 이용하여 다른 PAH 측정값과 비교하기 위하여 검증과 적용 연구를 시도한 경우, 예측한 PAH 농도는 서로 유사하였다. 통계적 분석을 통해서 Pyr과 BaP가 서로 상관성이 높은 것으로 조사되어 이들 화합물 모두 연소기원 형태로 분류 할 수 있을 것으로 여겨진다. 비록 BaP나 ${\Sigma}PAH$ 예측에 어느 정도가 한계가 있을 수 있으나 개발된 회귀식을 이용할 경우 추가적인 측정 없이 PAH를 빠르게 대략적인 값을 계산 할 수 있는 장점이 있다.

Keywords

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