title: Characterizing the parent and oxygenated polycyclic aromatic hydrocarbons in mangrove sediments of Hong Kong.
abstract: Parent and oxygenated polycyclic aromatic hydrocarbons (PAHs) were investigated in mangrove sediments of Hong Kong. Most of the analytes were detected, and the dominant carbonylic and hydroxylated PAHs in mangrove sediments were 9-fluorenone and 2-hydroxy fluorene, respectively. The concentration of 9-fluorenone and 9,10-anthraquinone was higher than their parent PAHs. Moreover, the concentration of total organic matter (TOM) related with those of the parent PAHs and carbonylic PAHs, except for hydroxylated PAHs, which indicated that TOM was not the only factor regulating the distribution of oxygenated PAHs. Nevertheless, the parent PAHs in mangrove sediments was correlated positively with carbonylic PAHs which demostrated not only the similar source but also the fate of these two compound class. However, hydroxylated PAHs had different source by comparing with parent PAHs and carbonylic PAHs, they were probably originated from biodegradation and accumulated in mangrove sediments.
authors.affiliation: Guangdong Provincial Key Laboratory of Marine Resource and Coastal Engineering, School of Marine Science, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Wang
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety, School of Marine Science, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.
authors.forename: Ke
authors.initials: K
authors.lastname: Yuan
authors.affiliation: Guangdong Provincial Key Laboratory of Marine Resource and Coastal Engineering, School of Marine Science, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.
authors.forename: Lihua
authors.initials: L
authors.lastname: Yang
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety, School of Marine Science, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.
authors.forename: Li
authors.initials: L
authors.lastname: Lin
authors.affiliation: State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong Special Administrative Region. Electronic address: bhntam@cityu.edu.hk.
authors.forename: Nora F Y
authors.initials: NF
authors.lastname: Tam
authors.affiliation: Guangdong Provincial Key Laboratory of Marine Resource and Coastal Engineering, School of Marine Science, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.
authors.forename: Baowei
authors.initials: B
authors.lastname: Chen
authors.affiliation: Guangdong Provincial Key Laboratory of Marine Resource and Coastal Engineering, School of Marine Science, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China; MOE Key Laboratory of Aquatic Product Safety, School of Marine Science, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China. Electronic address: cesltg@mail.sysu.edu.cn.
authors.forename: Tiangang
authors.initials: T
authors.lastname: Luan
mesh_terms: D000880:Anthraquinones / Q000032:analysis; D001673:Biodegradation, Environmental; D004784:Environmental Monitoring / Q000379:methods; D005449:Fluorenes / Q000032:analysis; D019015:Geologic Sediments / Q000032:analysis*; D006723:Hong Kong; D006900:Hydroxylation; D010100:Oxygen / Q000737:chemistry; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000737:chemistry*; D053833:Wetlands
chemical_list: D000880:Anthraquinones; D005449:Fluorenes; D011084:Polycyclic Aromatic Hydrocarbons; C042834:9,10-anthraquinone; C028401:9-fluorenone; C477779:2-hydroxyfluorene; D010100:Oxygen
keywords: Distribution; Mangrove; Oxygenated PAHs; Polycyclic Aromatic Hydrocarbons (PAHs); Sediments