| Black carbon and polycyclic aromatic hydrocarbons (PAHs) in surface sediments of China's marginal seas | |
| Kang Yanju1,2; Wang Xuchen1,3; Dai Minhan4; Feng Huan5; Li Anchun1; Song Qian1 | |
| 2009-06-01 | |
| 发表期刊 | CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| ISSN | 0254-4059 |
| 卷号 | 27期号:2页码:297-308 |
| 文章类型 | Article |
| 摘要 | This study investigates the distribution of black carbon (BC) and its correlation with total polycyclic aromatic hydrocarbons (I PAH) pound in the surface sediments of China's marginal seas. BC content ranges from < 0.10 to 2.45 mg/g dw (grams dry weight) in the sediments studied, and varied among the different coastal regions. The Bohai Bay sediments had the highest BC contents (average 2.18 mg/g dw), which comprises a significant fraction (27%-41%) of the total organic carbon (TOC) preserved in the sediments. In comparison, BC in the surface sediments of the North Yellow Sea, Jiaozhou Bay, East China Sea and the South China Sea is less abundant and accounted for an average of 6%, 8%, 14% and 5%, respectively, of the sedimentary organic carbon pool. The concentration of I PAH pound in the surface sediments ranges from 41 to 3 667 ng/g dw and showed large spatial variations among the sampling sites of different costal regions. The Bohai Bay has the highest I PAH pound values, ranging from 79 to 3 667 ng/g dw. This reflects the high anthropogenically contaminated nature of the sediments in the bay. BC is positively correlated to TOC but a strong correlation is not found between BC and I PAH pound in the surface sediments studied, suggesting that BC and PAHs preserved in the sediments are derived from different sources and controlled by different biogeochemical processes. Our study suggests that the abundance of BC preserved in the sediments could represent a significant sink pool of carbon cycling in China's marginal seas.; This study investigates the distribution of black carbon (BC) and its correlation with total polycyclic aromatic hydrocarbons (I PAH) pound in the surface sediments of China's marginal seas. BC content ranges from < 0.10 to 2.45 mg/g dw (grams dry weight) in the sediments studied, and varied among the different coastal regions. The Bohai Bay sediments had the highest BC contents (average 2.18 mg/g dw), which comprises a significant fraction (27%-41%) of the total organic carbon (TOC) preserved in the sediments. In comparison, BC in the surface sediments of the North Yellow Sea, Jiaozhou Bay, East China Sea and the South China Sea is less abundant and accounted for an average of 6%, 8%, 14% and 5%, respectively, of the sedimentary organic carbon pool. The concentration of I PAH pound in the surface sediments ranges from 41 to 3 667 ng/g dw and showed large spatial variations among the sampling sites of different costal regions. The Bohai Bay has the highest I PAH pound values, ranging from 79 to 3 667 ng/g dw. This reflects the high anthropogenically contaminated nature of the sediments in the bay. BC is positively correlated to TOC but a strong correlation is not found between BC and I PAH pound in the surface sediments studied, suggesting that BC and PAHs preserved in the sediments are derived from different sources and controlled by different biogeochemical processes. Our study suggests that the abundance of BC preserved in the sediments could represent a significant sink pool of carbon cycling in China's marginal seas. |
| 关键词 | Black Carbon Pah Marine Sediment Carbon Cycle China's Marginal Seas |
| 学科领域 | Limnology ; Oceanography |
| DOI | 10.1007/s00343-009-9151-x |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000267970300014 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/3676 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Dept Marine Ecol & Environm Studies, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Univ Massachusetts, Dept Environm Earth & Ocean Sci, Boston, MA 02120 USA 4.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China 5.Montclair State Univ, Dept Earth & Environm Studies, Montclair, NJ 07043 USA |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Kang Yanju,Wang Xuchen,Dai Minhan,et al. Black carbon and polycyclic aromatic hydrocarbons (PAHs) in surface sediments of China's marginal seas[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2009,27(2):297-308. |
| APA | Kang Yanju,Wang Xuchen,Dai Minhan,Feng Huan,Li Anchun,&Song Qian.(2009).Black carbon and polycyclic aromatic hydrocarbons (PAHs) in surface sediments of China's marginal seas.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,27(2),297-308. |
| MLA | Kang Yanju,et al."Black carbon and polycyclic aromatic hydrocarbons (PAHs) in surface sediments of China's marginal seas".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 27.2(2009):297-308. |
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