title: Spatial distributions of β-cyclocitral and β-ionone in the sediment and overlying water of the west shore of Taihu Lake.
abstract: After large-scale outbreaks of algal blooms in eutrophic water, considerable amounts of algae residue accumulate in near-shore zones before fermenting rapidly and becoming malodorous. Taste and odor pollution caused by secondary metabolites from cyanobacterial blooms has become a serious and widespread environmental problem. Two typical odorous compounds, β-cyclocitral and β-ionone, have gained increasing attention in recent years. In this paper, the spatial distributions of β-cyclocitral and β-ionone in the sediments and overlying water off the west shore of Taihu Lake were investigated. The results showed that β-cyclocitral, β-ionone and nutrients are released during the degradation of fresh cyanobacteria, especially in the early stages. The odorous compounds and nutrients greatly decreased as the depth of sediment increased, indicating that reed roots can absorb β-cyclocitral, β-ionone and nutrients. Furthermore, removing cyanobacteria and dredging sludge might reduce the release of β-cyclocitral and β-ionone.
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China.
authors.forename: Xiansheng
authors.initials: X
authors.lastname: Liu
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China. Electronic address: schenfei@njnu.edu.cn.
authors.forename: Chenfei
authors.initials: C
authors.lastname: Shi
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China.
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Xu
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China.
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Li
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Xu
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China.
authors.forename: Heyong
authors.initials: H
authors.lastname: Huang
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China.
authors.forename: Yanping
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
authors.forename: Yiwen
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China.
authors.forename: Huichao
authors.initials: H
authors.lastname: Shen
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China.
authors.forename: Chong
authors.initials: C
authors.lastname: Chen
authors.affiliation: School of Environment, Nanjing Normal University, Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, PR China. Electronic address: wangguoxiang@njnu.edu.cn.
authors.forename: Guoxiang
authors.initials: G
authors.lastname: Wang
mesh_terms: D000447:Aldehydes / Q000032:analysis*; D002681:China; D004224:Diterpenes / Q000032:analysis*; D004784:Environmental Monitoring; D005068:Eutrophication; D019015:Geologic Sediments / Q000737:chemistry; D060106:Lakes / Q000737:chemistry*; D045792:Norisoprenoids / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D000447:Aldehydes; D004224:Diterpenes; D045792:Norisoprenoids; D014874:Water Pollutants, Chemical; C516118:beta-cyclocitral; C008157:beta-ionone
keywords: Cyanobacterial metabolites; Sediment; Spatial distribution; Taihu Lake; β-Cyclocitral; β-Ionone