title: Spatial and temporal distribution and risk assessment of polycyclic aromatic hydrocarbons in surface seawater from the Haikou Bay, China.
abstract: Spatial and temporal distributions of 14 polycyclic aromatic hydrocarbons (PAHs) were investigated in surface waters of Haikou Bay, China from October 2013 to September 2014. The total PAHs concentrations ranged from 420.2 to 2539.1 ng L(-1) with the average value of 1016.3±455.8 ng L(-1), which were predominated by low molecular weight PAHs (2- and 3-ring PAHs). Moreover, PAHs displayed spatial and temporal variations in the concentration and composition pattern. Source analysis based on isomer ratios indicated that the PAHs mostly originated from petroleum and combustion processes. An eco-toxicological risk assessment showed that the potential risk of individual PAHs had reached moderate to high levels and the total concentrations of PAHs had also reached a relatively high level compared with previous studies. This study offers important information on the pollution levels of 14 PAHs in the surface waters of Haikou Bay and recommends that prevention and control of PAHs pollution should be implemented in the region.
authors: College of Agriculture, Hainan University, Haikou 570228, China; Haikou Key Laboratory of Environment Toxicology, Haikou 570228, China.
authors: Yuhu
authors: Y
authors: Li
authors: Haikou Key Laboratory of Environment Toxicology, Haikou 570228, China; College of Plant Protection and Environment, Hainan University, Haikou 570228, China.
authors: Ping
authors: P
authors: Li
authors: Satellite Environment Center, Ministry of Environmental Protection, Beijing 100094, China.
authors: Wandong
authors: W
authors: Ma
authors: College of Agriculture, Hainan University, Haikou 570228, China.
authors: Qingqing
authors: Q
authors: Song
authors: College of Agriculture, Hainan University, Haikou 570228, China; Haikou Key Laboratory of Environment Toxicology, Haikou 570228, China. Electronic address: zhouhl@hainu.edu.cn.
authors: Hailong
authors: H
authors: Zhou
authors: College of Agriculture, Hainan University, Haikou 570228, China.
authors: Qian
authors: Q
authors: Han
authors: College of Agriculture, Hainan University, Haikou 570228, China; Haikou Key Laboratory of Environment Toxicology, Haikou 570228, China. Electronic address: diaoxip@hainu.edu.cn.
authors: Xiaoping
authors: X
authors: Diao
mesh_terms: D061006:Bays; D002681:China; D054750:Ecotoxicology / Q000379:methods; D004784:Environmental Monitoring / Q000379:methods; D008970:Molecular Weight; D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D018570:Risk Assessment / Q000379:methods; D012623:Seawater / Q000032:analysis* / Q000737:chemistry; D062211:Spatio-Temporal Analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical
keywords: Composition pattern; Eco-toxicological risk; Polycyclic aromatic hydrocarbons (PAHs); Spatial and temporal distribution; The Haikou Bay