Mathivanan V, Prabavathi R, Prithabai C
Department of Zoology, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu, India.
Toxicol Int. 2010 Jul;17(2):102-5. doi: 10.4103/0971-6580.72681.
Phytoremediation is a promising area of new research, both for its low cost and great benefit to society in the clean retrieval of contaminated sites. Phytoremediation is the use of living green plants for in situ risk reduction and/or removal of contaminants from contaminated soil, water, sediments, and air. Specially selected or engineered plants are used in the process. The soil samples were taken from Cuddalore Old Town (OT) and the samples from SIPCOT industrial complex, which was the study area and analyzed for various metals concentrations. Fifteen metals have been analyzed by adopting standard procedure. The detection limits of metal concentration are drawn as control. The various (15) metal concentrations in the soil samples were found higher in soil taken from SIPCOT industrial complex, compared with samples taken from Cuddalore OT. In all the observations, it was found that most of the metals like calcium, cadmium, chromium, cobalt, nickel, and zinc showed maximum concentrations, whereas arsenic, antimony, lead, magnesium, sodium have shown minimum concentrations, both when compared with control. From the present study, it was found that the soil collected from SIPCOT complex area were more polluted due to the presence of various industrial effluents, municipal wastes, and sewages when compared with the soil collected from Cuddalore OT.
植物修复是一个很有前景的新研究领域，因其成本低且在污染场地的清洁修复方面对社会有巨大益处。植物修复是利用绿色植物来原位降低风险和/或从受污染的土壤、水、沉积物和空气中去除污染物。在此过程中使用经过特别挑选或培育的植物。土壤样本取自本地治里老城区（OT）以及作为研究区域的SIPCOT工业园区的样本，并对各种金属浓度进行了分析。采用标准程序分析了15种金属。绘制金属浓度的检测限作为对照。与取自本地治里OT的样本相比，发现取自SIPCOT工业园区的土壤样本中各种（15种）金属浓度更高。在所有观察结果中发现，与对照相比，大多数金属如钙、镉、铬、钴、镍和锌的浓度最高，而砷、锑、铅、镁、钠的浓度最低。从本研究中发现，与取自本地治里OT的土壤相比，取自SIPCOT园区区域的土壤由于存在各种工业废水、城市垃圾和污水而污染更严重。
