Banks M K, Schwab P, Liu B, Kulakow P A, Smith J S, Kim R
School of Civil Engineering, Purdue University, West Lafayette, IN 47906, USA.
Adv Biochem Eng Biotechnol. 2003;78:75-96. doi: 10.1007/3-540-45991-x_3.
A field project located at the US Naval Base at Port Hueneme, California was designed to evaluate changes in contaminant concentrations and toxicity during phytoremediation. Vegetated plots were established in petroleum (diesel and heavy oil) contaminated soil and were evaluated over a two-year period. Plant species were chosen based on initial germination studies and included native California grasses. The toxicity of the impacted soil in vegetated and unvegetated plots was evaluated using Microtox, earthworm, and seed germination assays. The reduction of toxicity was affected more by contaminant aging than the establishment of plants. However, total petroleum hydrocarbon concentrations were lower by the end of the study in the vegetated plots when compared to the unvegetated soil. Although phytoremediation is an effective approach for cleaning-up of petroleum contaminated soil, a long-term management plan is required for significant reductions in contaminant concentrations.
位于加利福尼亚州胡恩米港美国海军基地的一个实地项目旨在评估植物修复过程中污染物浓度和毒性的变化。在受石油（柴油和重油）污染的土壤中设立了植被地块，并在两年时间内对其进行评估。根据初步发芽研究选择了植物物种，包括加利福尼亚本土草类。使用微毒性测试、蚯蚓和种子发芽试验评估了有植被和无植被地块中受影响土壤的毒性。毒性的降低受污染物老化的影响比植物的生长更大。然而，与无植被土壤相比，研究结束时植被地块中的总石油烃浓度较低。尽管植物修复是清理石油污染土壤的有效方法，但要大幅降低污染物浓度，需要一个长期管理计划。
