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Evaluation of biogenic and anthropogenic inputs of aliphatic hydrocarbons to Lake Taihu sediments using biomarkers

Qu, Wenchuan; Xue, Bin; Su, Chenwei; Wang, Sumin

Description

Surficial sediments from 13 sites throughout Lake Taihu, one of the largest urbanized freshwater lake systems in China, were analyzed for biomarkers (e.g., n-alkanes and hopanes) to track the origin of organic inputs (biogenic or anthropogenic), and, thus, to identify any 'hot spots' of hydrocarbon contamination. A distinct spatial distribution of aliphatic hydrocarbons in sediments was observed in Lake Taihu. At the northern tip of the lake (i.e., Meiliang and Wuli Bays), the highest mean...[Show more]

dc.contributor.authorQu, Wenchuan
dc.contributor.authorXue, Bin
dc.contributor.authorSu, Chenwei
dc.contributor.authorWang, Sumin
dc.date.accessioned2015-12-10T21:56:46Z
dc.identifier.issn0018-8158
dc.identifier.urihttp://hdl.handle.net/1885/39592
dc.description.abstractSurficial sediments from 13 sites throughout Lake Taihu, one of the largest urbanized freshwater lake systems in China, were analyzed for biomarkers (e.g., n-alkanes and hopanes) to track the origin of organic inputs (biogenic or anthropogenic), and, thus, to identify any 'hot spots' of hydrocarbon contamination. A distinct spatial distribution of aliphatic hydrocarbons in sediments was observed in Lake Taihu. At the northern tip of the lake (i.e., Meiliang and Wuli Bays), the highest mean aliphatic hydrocarbon concentration, with a significant contribution of an unresolved complex mixture (UCM), was found, indicating possible anthropogenic petroleum contamination (mainly from untreated and partially treated industrial and domestic sewage from Wuxi, Changzhou and other cities). This was supported by the n-alkane indices (e.g., small Carbon Preference Index and odd-to-even values) and a high degree of maturity of the hopane biomarkers. However, hydrocarbons from East Taihu were mainly biogenic, with the lowest mean concentrations, negligible or no contribution of UCM, abundance of vascular plant C23-C33 n-alkanes with a high odd-to-even predominance, and the presence of biogenic hopanes (e.g., 17β(H), 21β(H)-hopanes and hopenes). In the other areas of the lake, however, the predominance of biogenic in combination with petrogenic hydrocarbons was indicated by the biomarkers.
dc.publisherKluwer Academic Publishers
dc.sourceHydrobiologia
dc.subjectKeywords: Biomarkers; Contamination; Lakes; Sediments; Sewage; Anthropogenic; Lake Taihu; Petrogenic hydrocarbons; Urbanized freshwater lake; Hydrocarbons; aliphatic hydrocarbon; anthropogenic source; biogenic material; biomarker; lacustrine deposit; organic pollut Anthropogenic; Biogenic; Biomarkers; Lake Taihu; Sediment; Sources
dc.titleEvaluation of biogenic and anthropogenic inputs of aliphatic hydrocarbons to Lake Taihu sediments using biomarkers
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume581
dc.date.issued2007
local.identifier.absfor060208 - Terrestrial Ecology
local.identifier.ariespublicationu3379551xPUB180
local.type.statusPublished Version
local.contributor.affiliationQu, Wenchuan, Chinese Academy of Sciences
local.contributor.affiliationXue, Bin, Chinese Academy of Sciences
local.contributor.affiliationSu, Chenwei, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationWang, Sumin, Australian Bureau of Statistics
local.description.embargo2037-12-31
local.bibliographicCitation.startpage89
local.bibliographicCitation.lastpage95
local.identifier.doi10.1007/s10750-006-0510-8
local.identifier.absseo970106 - Expanding Knowledge in the Biological Sciences
dc.date.updated2015-12-09T07:41:02Z
local.identifier.scopusID2-s2.0-33947217954
CollectionsANU Research Publications

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