Black carbon and polycyclic aromatic hydrocarbons (PAHs) in surface sediments of China’s marginal seas
文献类型：CNKI期刊论文
| 作者 | Kang YJ(康延菊); Wang XC(王旭晨); Dai MH(戴民汉); Feng H(冯桓); Li AC(李安春); Song Q(宋茜) |
| 发表日期 | 2009-05-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | Black carbon PAH marine sediment carbon cycle China’s marginal seas |
| 英文摘要 | This study investigates the distribution of black carbon (BC) and its correlation with total polycyclic aromatic hydrocarbons (ΣPAH) 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 ΣPAH 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 ΣPAH 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 ΣPAH 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. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China (No. 40476038 and 40576039) |
| 卷 | v.27期:02页:115-126 |
| 语种 | 英文; |
| 分类号 | P734.2 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/192591]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.DepartmentofMarineEcologyandEnvironmentalStudies,InstituteofOceanology,ChineseAcademyofSciences 2.GraduateSchoolofChineseAcademyofSciences 3.DepartmentofEnvironmental,EarthandOceanSciences,UniversityofMassachusettsatBoston 4.StateKeyLaboratoryofMarineEnvironmentalScience,XiamenUniversity 5.DepartmentofEarthandEnvironmentalStudies,MontclairStateUniversity |
| 推荐引用方式 GB/T 7714 | Kang YJ,Wang XC,Dai MH,et al. Black carbon and polycyclic aromatic hydrocarbons (PAHs) in surface sediments of China’s marginal seas. 2009. |
入库方式： OAI收割
来源：海洋研究所
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