Source Apportionment of Polychlorinated Dibenzo-p-Dioxins (PCDDs) and Polychlorinated Dibenzofurans (PCDFs) in Soil Around a Hazardous Waste Incinerator in Multi-Sources Region

Abstract

The results of source apportionment of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in Korean soil samples collected around an incinerator are presented. For source identification, a comparison of congener and/or isomer profiles between soil samples and potential sources (flue gas, vehicle, pentachlorophenol, and chloronitrophen) was conducted. In addition, a multivariate method (principal component analysis and hierarchical cluster analysis) was performed. To examine the influence of chloronitrophen in soils, all the tetra- to octachlorinated congeners were measured. The source apportionment was conducted using a multiple regression analysis. The flue gas, pentachlorophenol, and chloronitrophen contributed 2%–89%, 9%–62%, and 1%–86%, respectively.

Keywords:

• polychlorinated dibenzo-p-dioxins (PCDDs)
• polychlorinated dibenzofurans (PCDFs)
• soil
• incinerator
• source apportionment
• multivariate method

Notes

*Only 2,3,7,8-substituted PCDD/Fs concentration.

**WHO-TEQ was calculated by WHO-TEFs (1998) (Van den Berg et al., 1998).