Mânzatu Carmen, Nagy Boldizsár, Ceccarini Alessio, Iannelli Renato, Giannarelli Stefania, Majdik Cornelia
Babeş-Bolyai University, Faculty of Chemistry and Chemical Engineering, Department of Chemistry, 11 Arany János st., 400028 Cluj Napoca, Romania.
University of Pisa, Department of Chemistry and Industrial Chemistry, 3 Giuseppe Moruzzi st., 56124 Pisa, Italy.
Mar Pollut Bull. 2015 Dec 30;101(2):605-11. doi: 10.1016/j.marpolbul.2015.10.045.
The aim of this study was to investigate the concentrations and pollution levels of heavy metals, organochlorine pesticides, and polycyclic aromatic hydrocarbons in marine sediments from the Leghorn Harbor (Italy) on the Mediterranean Sea. The phytoextraction capacity of three aquatic plants Salvinia natans, Vallisneria spiralis, and Cabomba aquatica was also tested in the removal of lead and copper, present in high concentration in these sediments. The average detectable concentrations of metals accumulated by the plants in the studied area were as follows: >3.328 ± 0.032 mg/kg dry weight (DW) of Pb and 2.641 ± 0.014 mg/kg DW of Cu for S. natans, >3.107 ± 0.034 g/kg DW for V. spiralis, and >2.400 ± 0.029 mg/kg DW for C. aquatica. The occurrence of pesticides was also analyzed in the sediment sample by gas chromatography coupled with mass spectrometry (GC/MS). Due to its metal and organic compound accumulation patterns, S. natans is a potential candidate in phytoextraction strategies.
本研究旨在调查地中海意大利里窝那港海洋沉积物中重金属、有机氯农药和多环芳烃的浓度及污染水平。还测试了三种水生植物槐叶萍、苦草和水盾草对这些沉积物中高浓度铅和铜的植物提取能力。研究区域内植物积累的金属平均可检测浓度如下：槐叶萍的铅为>3.328±0.032毫克/千克干重（DW），铜为2.641±0.014毫克/千克DW；苦草为>3.107±0.034克/千克DW；水盾草为>2.400±0.029毫克/千克DW。还通过气相色谱-质谱联用（GC/MS）分析了沉积物样品中农药的存在情况。由于其金属和有机化合物积累模式，槐叶萍是植物提取策略中的一个潜在候选者。
