Composition and sources of organic matter and its solvent extractable components in surface sediments of a bay under serious anthropogenic influences: Daya Bay, China
Gao, Xuelu1,2; Chen, Shaoyong1; Long, Aimin1
Source PublicationMARINE POLLUTION BULLETIN
ISSN0025-326X
2008-06-01
Volume56Issue:6Pages:1066-1075
KeywordBulk Analysis Solvent Extractable Organic Matter Biomarker Surface Sediment Daya Bay
Contribution RankChinese Acad Sci, S China Sea Inst Oceanol, Key Lab Trop Marine Environm Dynam; Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev
Corresponding AuthorChen, SY, Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Department污染过程与控制实验室
AbstractOrganic matter of nine surface sediments from the Daya Bay was Soxhlet-extracted with a mixture of 2:1 (v/v) dichloromethane-methanol and separated into five fractions: non-aromatic hydrocarbons, aromatic hydrocarbons, ketones, alcohols, and fatty acids and asphaltenes, and analyzed to determine their bulk and biomarker composition. Marine autogenic input appears to be a major source of organic matter. Generally, non-aromatic hydrocarbons are the most dominant fraction of solvent-extractable organic matter (EOM) followed by the other four fractions in decreasing amounts: fatty acids and asphaltenes, ketones, alcohols and aromatic hydrocarbons. On average, both non-aromatic hydrocarbon fraction and fatty acid and asphaltene fraction account for similar to 40% of EOM. The sources of acyclic methyl ketones, alkanols and fatty acids were examined. For n-alkan-2-ones, allochthonous input is a more important source than marine autogenetic input; the reverse is true for n-fatty acids; for n-alkanols, allochthonous and autogenetic inputs seem comparable. Both n-alkan-2-ones and n-fatty acids in the surface sediments of different areas appear to be derived from common sources. (C) 2008 Elsevier Ltd. All rights reserved.
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordPEARL RIVER ESTUARY ; FATTY-ACIDS ; MARINE-SEDIMENTS ; YANGTZE-RIVER ; LIPID BIOGEOCHEMISTRY ; SOUTHERN CHINA ; ADJACENT SHELF ; HEAVY-METALS ; CARBON ; HYDROCARBONS
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS IDWOS:000257377400016
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/3556
Collection中科院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室
Affiliation1.Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Trop Marine Environm Dynam, Guangzhou 510301, Guangdong, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
Recommended Citation
GB/T 7714
Gao, Xuelu,Chen, Shaoyong,Long, Aimin. Composition and sources of organic matter and its solvent extractable components in surface sediments of a bay under serious anthropogenic influences: Daya Bay, China[J]. MARINE POLLUTION BULLETIN,2008,56(6):1066-1075.
APA Gao, Xuelu,Chen, Shaoyong,&Long, Aimin.(2008).Composition and sources of organic matter and its solvent extractable components in surface sediments of a bay under serious anthropogenic influences: Daya Bay, China.MARINE POLLUTION BULLETIN,56(6),1066-1075.
MLA Gao, Xuelu,et al."Composition and sources of organic matter and its solvent extractable components in surface sediments of a bay under serious anthropogenic influences: Daya Bay, China".MARINE POLLUTION BULLETIN 56.6(2008):1066-1075.
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