Polychlorinated biphenyls (PCBs) are a class of persistent organic pollutants that pose a threat to environment and human health. Aiming at predicting PCBs risk in actual soil ecosystem, this study was conducted by chemical and biological methods to assess the bioavailability of PCBs in spiked soil, and in field-contaminated soils before or after remediation. The three chemical methods were Soxhlet, n-butanol and hydroxypropyl-β-cyclodextrin (HPCD). Results were compared to actual PCB bioaccumulation in earthworms (Eisenia fetida). HPCD extraction was the best to predict the actual PCB bioaccumulation in all soils. The results suggest that HPCD could be an effective alternative method to earthworm toxicity test. This study provides strategy to understand the toxicity assessment in contaminated soil and soil after remediation.

中文翻译：

---

对掺加和修复的土壤中多氯联苯的Test毒性测试的替代评估。

多氯联苯（PCB）是一类持久性有机污染物，对环境和人类健康构成威胁。为了预测实际土壤生态系统中多氯联苯的风险，本研究通过化学和生物学方法进行了评估，以评估加标土壤以及修复前后土壤污染土壤中多氯联苯的生物利用度。三种化学方法是索氏提取法，正丁醇和羟丙基-β-环糊精（HPCD）。结果进行了比较，在实际蚯蚓PCB生物蓄积性（蚯蚓）。HPCD提取最能预测所有土壤中PCB的实际生物积累。结果表明，HPCD可能是earth毒性试验的有效替代方法。这项研究提供了策略，以了解受污染的土壤和修复后的土壤中的毒性评估。