School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
Mar Pollut Bull. 2012 Aug;64(8):1614-9. doi: 10.1016/j.marpolbul.2012.05.029. Epub 2012 Jun 14.
To investigate the influence of mangrove reforestation on the accumulation of PCBs, the concentrations and homologue patterns of polychlorinated biphenyls in surface sediments from different mangrove forests and their adjacent mud flats in Guangdong Province were determined. The total PCB concentrations in the sediments ranged from 3.03 to 46.62 ng g⁻¹ (dry weight). Differences in the accumulation and distribution of PCBs were found between the mangrove sites and the mud flats. Furthermore, the natural forests and restored mangrove forests of native species showed slight PCB contamination, whereas the exotic species Sonneratia apetala exacerbated the PCB pollution at certain sites. It was suggested that the native mangrove species Kandelia candel and Aegiceras corniculatum could represent good choices for the phytoremediation of PCB contamination.
为了研究红树林造林对多氯联苯（PCBs）积累的影响，本研究测定了广东省不同红树林及其毗邻泥滩表层沉积物中多氯联苯的浓度和同系物模式。沉积物中的总 PCB 浓度范围为 3.03 至 46.62ng g⁻¹（干重）。红树林地点和泥滩之间的 PCB 积累和分布存在差异。此外，天然林和本地种的人工恢复红树林显示出轻微的 PCB 污染，而外来种白骨壤在某些地点加剧了 PCB 污染。研究表明，本地红树林物种红海榄和桐花树可能是 PCB 污染植物修复的良好选择。
