The effect of mangrove reforestation on the accumulation of PCBs in sediment from different habitats in Guangdong, China.
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.
School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
Bo
B
Zhao
Yan-Wu
YW
Zhou
Gui-Zhu
GZ
Chen
D001673:Biodegradation, Environmental; D002681:China; D017753:Ecosystem; D004784:Environmental Monitoring; D052918:Environmental Restoration and Remediation; D016468:Forestry / Q000379:methods; D019015:Geologic Sediments / Q000737:chemistry*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D029623:Primulaceae / Q000254:growth & development; D043982:Rhizophoraceae / Q000254:growth & development*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls