State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, PR China.
J Hazard Mater. 2011 Sep 15;192(3):1729-38. doi: 10.1016/j.jhazmat.2011.07.002. Epub 2011 Jul 8.
In this study, the contamination of soil by PCDD/Fs and other dioxin-like chemicals in the vicinity of Municipal Solid Waste Incinerators (MSWIs) and Hazardous Waste Incinerators (HWIs) is estimated by the XDS-CALUX bioassay. The resulting CALUX-TEQ value is compared with the WHO-TEQ value obtained from HRGC/HRMS analysis, in order to validate the CALUX bioassay as suitable screening method for PCDD/Fs determination of soil samples. The results show that the CALUX-TEQ and the WHO-TEQ values are significantly correlated (R = 0.87). The WHO-TEQ and CALUX-TEQ of soil samples collected from four waste incineration plants in China were in the range from 1.72 to 31.4 pg-TEQ/g and 1.71 to 44.2 pg-TEQ/g respectively, with a mean value of 6.09 pg-TEQ/g and 11.0 pg-TEQ/g. Considering the homologue patterns, a principal component analysis (PCA) and a hierarchical cluster analysis (HCA) of the PCDD/Fs in the soil samples, the emissions of MSWIs and HWIs were probably not the only source of PCDD/Fs.
本研究采用 XDS-CALUX 生物测定法估算了城市固体废物焚烧炉（MSWI）和危险废物焚烧炉（HWI）附近土壤中 PCDD/Fs 和其他类二噁英化学物质的污染情况。所得 CALUX-TEQ 值与通过 HRGC/HRMS 分析获得的 WHO-TEQ 值进行了比较，以验证 CALUX 生物测定法作为土壤样品中 PCDD/Fs 测定的合适筛选方法。结果表明，CALUX-TEQ 和 WHO-TEQ 值呈显著相关（R = 0.87）。从中国四个废物焚烧厂采集的土壤样本的 WHO-TEQ 和 CALUX-TEQ 分别在 1.72 至 31.4 pg-TEQ/g 和 1.71 至 44.2 pg-TEQ/g 之间，平均值分别为 6.09 pg-TEQ/g 和 11.0 pg-TEQ/g。考虑到同系物模式，对土壤样本中 PCDD/Fs 的主成分分析（PCA）和层次聚类分析（HCA）表明，MSWI 和 HWI 的排放可能不是 PCDD/Fs 的唯一来源。
