Integration of chemical and biological methods:A case study of polycyclic aromatic hydrocarbons pollution monitoring in Shandong Peninsula,China

• 作者: Zeyuan Li Yunhao Cao Huawei Qin Yuanqing Ma Luqing Pan Jiawei Sun
• 来源期刊: 环境科学学报（英文版）
• 年，卷（期）: 2022,（1）
• 页码范围: 24-37
• 页数: 14页
• 语种: 英文

摘要

Polycyclic aromatic hydrocarbons (PAHs),as persistent toxic substances (PTS),have been widely monitored in coastal environment,including seawater and sediment.However,sci-entific monitoring methods,like ecological risk assessment and integrated biomarker re-sponse,still need massive researches to verify their availabilities.This study was performed in March,May,August and October of 2018 at eight sites,Yellow River estuary (S1),Guan-gli Port (S2),Xiaying (S3),Laizhou (S4),Inner Bay (S5),Outer Bay (S6),Hongdao (S7) and Hongshiya (S8) of Shandong Peninsula,China.The contents of 16 priority PAHs in local seawater and sediment were determined,by which ecological risk assessment risk quo-tient (RQ) for seawater and sediment quality guidelines (SQGs) were calculated to char-acterize the PAHs pollution.Meanwhile,multiple biomarkers in the digestive gland of clam Ruditapes philippinarum were measured to represent different biological endpoints,in-cluding ethoxyresorufin-O-deethylase (EROD),glutathione S-transferase (GST),sulfotrans-ferase (SULT),superoxide dismutase (SOD) and lipid peroxidation (LPO),by which integrated biomarker response (IBR) was calculated to provide a comprehensive assessment of envi-ronmental quality.Taken together,these results revealed the heaviest pollution at S2 as both PAHs concentrations and biomarkers responses reflected,and supported the integrated biomarker response as a useful tool for marine environmental monitoring,through its in-tegration with SQGs.