| Heavy metals,polycyclic aromatic hydrocarbons and organochlorine pesticides in the surface sediments of mangrove swamps from coastal sites along the Leizhou Peninsula, South China |
| |
| 作者姓名： | TANG Yijie FANG Zhanqiang YU Shixiao |
| |
| 作者单位： | State Key Labrabory of Biocontrol, Department of Ecology, School of Life Science, Sun Yat-sen University, Guangzhou 512075, China;Department of Biology, Guangdong Education Institute, Guangzhou 510303, China;School of Life Science, South China Normal University, Guangzhou 510631, China;State Key Labrabory of Biocontrol, Department of Ecology, School of Life Science, Sun Yat-sen University, Guangzhou 512075, China |
| |
| 基金项目： | Zhang Hongda Science Research Fund of Sun Yat-sen University and the Young and Middle-aged Excellet Reacher's Research Fund of Guangdong Education Institute in China. |
| |
| 摘 要： | Contents of heavy metals, polycyclic aromatic hydrocarbons （PA Hs）, dichlorodiphenyltrichloroethanes （DDTs） and hexachlorcy- clohexanes （HCHs） in surface sediments from mangrove areas of the Leizhou Peninsula were analyzed in July and November 2005. Risk assessment criteria applied by Long E R et al. （1995） and Long E D et al. （1995） （effects range low, ERL; effects range mean, ERM） of chemicals in sediments from the gulf or estuary were used to assess the potential ecological risks of heavy metals, PAHs, DDTs and HCHs to aquatic organisms in the studied area. The results indicated that the average contents of zinc, nickel, chromium, lead, copper, arsenic and mercury were （61.97 ± 55.87）, （59.99 ± 39.01 ）, （47.93 ± 28.37）, （26.64± 13.00） , （23.45 ± 41.96）, （9.32 ± 3.62）, （0.14 ± 0.18） mg/kg in dry weight in the sediment samples col- lected from five studied sites in the Leizhou Peninsula, respectively. Cadmium was not calculated due to its content being below the detection limit （ 〈 0.3 mg,/kg）. The average levels of Cr, Cu, Ni, Pb, Zn and Hg exceed their background values. The average contents of Ni were higher than ERM. The contents of PAHs in the sediments from the five studied sites were （79.78 ± 43.70） ng/g in dry weight, far lower than ERL（4 022 ng/g）. The contents of DDE, DDD and DDTs in the sediments from five studied sites were （2.60 ± 4.68）, （ 17.52 ± 27.25 ）, （27.78 ± 46.64） ng/g in dry weight respectively, clearly higher than ERL, and the average contents of DDT were （7.66 ± 15.93） ng/g in dry weight, much higher than ERM. HCHs could be detected in the sediments only from Gaoqiao sampling site, with the average contents （0.07 ± 0.08） ng/g in dry weight.
|
| 关 键 词： | 重金属 多轮芳烃 有机氯杀虫剂 雷州半岛 中国 红树林湿地 表面沉积物 |
| 收稿时间： | 2007/4/25 0:00:00 |
| 修稿时间： | 2007/9/12 0:00:00 |
Heavy metals,polycyclic aromatic hydrocarbons and organochlorine pesticides in the surface sediments of mangrove swamps from coastal sites along the Leizhou Peninsula, South China |
| |
| TANG Yijie,FANG Zhanqiang,YU Shixiao.Heavy metals,polycyclic aromatic hydrocarbons and organochlorine pesticides in the surface sediments of mangrove swamps from coastal sites along the Leizhou Peninsula, South China[J].Acta Oceanologica Sinica,2008,27(1):42-53. |
| |
| Authors: | TANG Yijie FANG Zhanqiang and YU Shixiao |
| |
| Institution: | 1.State Key Labrabory of Biocontrol, Department of Ecology, School of Life Science, Sun Yat-sen University, Guangzhou 512075, China;Department of Biology, Guangdong Education Institute, Guangzhou 510303, China2.School of Life Science, South China Normal University, Guangzhou 510631, China3.State Key Labrabory of Biocontrol, Department of Ecology, School of Life Science, Sun Yat-sen University, Guangzhou 512075, China |
| |
| Abstract: | Contents of heavy metals,polycyclic aromatic hydrocarbons (PAHs),diehlorodiphenyltrichloroethanes (DDTs) and hexaehlorcy- clohexanes (HCHs) in surface sediments from mangrove areas of the Leizhou Peninsula were analyzed in July and November 2005.Risk assessment criteria applied by Long E R et al.(1995) and Long E D et al.(1998) (effects range low,ERL;effects range mean,ERM) of chemicals in sediments from the gulf or estuary were used to assess the potential ecological risks of heavy metals,PAHs,DDTs and HCHs to aquatic organisms in the studied area.The results indicated that the average contents of zinc, nickel,chromium,lead,copper,arsenic and mercury were (61.97±55.87),(59.99±39.01 ),(47.93±28.37), (26.64±13.00),(23.45±41.96),(9.32±3.62),(0.14±0.18) mg/kg in dry weight in the sediment samples col- lected from five studied sites in the Leizhou Peninsula,respectively.Cadmium was not calculated due to its content being below the detection limit ( < 0.3 mg/kg).The average levels of Cr,Cu,Ni,Pb,Zn and Hg exceed their background values.The av- erage contents of Ni were higher than ERM.The contents of PAHs in the sediments from the five studied sites were (79.78± 43.70) ng/g in dry weight,far lower than ERL(4 022 ng/g).The contents of DDE,DDD and DDTs in the sediments from five studied sites were (2.60±4.68),( 17.52±27.25),(27.78±46.64) ng/g in dry weight respectively,clearly higher than ERL,and the average contents of DDT were (7.66±15.93) ng/g in dry weight,much higher than ERM.HCHs could be de- tected in the sediments only from Gaoqiao sampling site,with the average contents (0.07±0.08) ng/g in dry weight. |
| |
| Keywords: | sediment mangrove swamps heavy metals PAHs DDTs HCHs |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
|
