Spatial distribution, sources and ecological risk assessment of polycyclic aromatic hydrocarbons in surface seawater from Yangpu Bay, China.
The occurrence of 14 polycyclic aromatic hydrocarbons (PAHs) listed by the United States Environmental Protection Agency was investigated in surface seawater of Yangpu Bay, China in November 2013 (winter) and May 2014 (summer). Seventy-two samples were collected from 12 sampling sites. The total concentrations of PAHs in Yangpu Bay showed obvious variations in different seasons, which varied from 582.8 to 2208.3 ng L(-1) in winter and 952.4 to 1201.7 ng L(-1) in summer, respectively. Two-ring PAHs accounted for more than 91.6% of total PAHs in winter, and three-ring PAHs were dominant with 81.6% of total PAHs in summer. Molecular indices analyses indicated that the main source of PAHs in Yangpu Bay could be petrogenic contamination. The ecological risk assessment by Risk quotients (RQNCs and RQMPCs) showed a potential ecological risk of PAHs in Yangpu Bay, indicating a close attention should be paid to pollution of PAHs in the coastal area of Yangpu.
College of Environment and Plant Protection, Hainan University, Haikou 570228, China; Haikou Key Laboratory of Environment Toxicology, Haikou 570228, China.
Ping
P
Li
College of Agriculture, Hainan University, Haikou 570228, China; Haikou Key Laboratory of Environment Toxicology, Haikou 570228, China; College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
Jia
J
Cao
College of Environment and Plant Protection, Hainan University, Haikou 570228, China; College of Agriculture, Hainan University, Haikou 570228, China; Haikou Key Laboratory of Environment Toxicology, Haikou 570228, China. Electronic address: diaoxip@hainu.edu.cn.
Xiaoping
X
Diao
Petrochemical Analytical and Testing Center, Yangpu Entry-Exit Inspection and Quarantine Bureau Technology Center, Hainan 578101, China.
Baihua
B
Wang
College of Agriculture, Hainan University, Haikou 570228, China. Electronic address: zhouhl@hainu.edu.cn.
Hailong
H
Zhou
College of Agriculture, Hainan University, Haikou 570228, China.
Qian
Q
Han
College of Agriculture, Hainan University, Haikou 570228, China; Haikou Key Laboratory of Environment Toxicology, Haikou 570228, China.
Pengfei
P
Zheng
College of Agriculture, Hainan University, Haikou 570228, China.
Yuhu
Y
Li
D061006:Bays / Q000737:chemistry; D002681:China; D004463:Ecology; D004784:Environmental Monitoring; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D018570:Risk Assessment; D012621:Seasons; D012623:Seawater / Q000737:chemistry*; D014481:United States
D011084:Polycyclic Aromatic Hydrocarbons
Ecological risk assessment; Oil contamination; Polycyclic aromatic hydrocarbons; Source; Surface seawater; Yangpu Bay