title: Coastal surface sediment quality assessment in Leizhou Peninsula (South China Sea) based on SEM-AVS analysis.
abstract: Surface sediments from the coastal area of the Leizhou Peninsula in the South China Sea were collected and analyzed and the potential ecological risks in the area were assessed based on acid-volatile sulfide (AVS) model. The AVS levels are between 0.109 and 55.6 μmol g(-1), with the average at 4.45 μmol g(-1). The high AVS-concentration zones include the aquaculture areas of Liusha Bay and the densely populated areas of Zhanjiang Bay. The simultaneously extracted metals (SEM) range from 0.026 μmol g(-1) to 8.61 μmol g(-1), with the average at 0.843 μmol g(-1). Most of high SEM-concentration stations were located in ports or aquaculture zones. Most of the coastal surface sediments of the Leizhou Peninsula (90%) had no adverse biological effects according to the criterion proposed by USEPA (2005); while adverse effects were uncertain in some stations (8%); even in 2 stations (2%) adverse biological effects may be expected.
authors.affiliation: South China University of Technology, Guangzhou 510641, China. Electronic address: hjlifeng@scut.edu.cn.
authors.forename: Feng
authors.initials: F
authors.lastname: Li
authors.affiliation: Guangzhou Marine Geological Survey, Guangzhou 510760, China; Key Laboratory of Marine Mineral Resources, Ministry of Land and Resources, Guangzhou 510760, China.
authors.forename: Jin-qin
authors.initials: JQ
authors.lastname: Lin
authors.affiliation: South China University of Technology, Guangzhou 510641, China.
authors.forename: Yan-yan
authors.initials: YY
authors.lastname: Liang
authors.affiliation: Guangzhou Marine Geological Survey, Guangzhou 510760, China; Key Laboratory of Marine Mineral Resources, Ministry of Land and Resources, Guangzhou 510760, China.
authors.forename: Hua-yang
authors.initials: HY
authors.lastname: Gan
authors.affiliation: South China University of Technology, Guangzhou 510641, China.
authors.forename: Xiang-yun
authors.initials: XY
authors.lastname: Zeng
authors.affiliation: South China University of Technology, Guangzhou 510641, China.
authors.forename: Zhi-peng
authors.initials: ZP
authors.lastname: Duan
authors.affiliation: Guangzhou Marine Geological Survey, Guangzhou 510760, China; Key Laboratory of Marine Mineral Resources, Ministry of Land and Resources, Guangzhou 510760, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Liang
authors.affiliation: Guangzhou Marine Geological Survey, Guangzhou 510760, China; Key Laboratory of Marine Mineral Resources, Ministry of Land and Resources, Guangzhou 510760, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Liu
authors.affiliation: Guangzhou Marine Geological Survey, Guangzhou 510760, China; Key Laboratory of Marine Mineral Resources, Ministry of Land and Resources, Guangzhou 510760, China.
authors.forename: Zhen-hai
authors.initials: ZH
authors.lastname: Huo
authors.affiliation: South China University of Technology, Guangzhou 510641, China.
authors.forename: Chang-hua
authors.initials: CH
authors.lastname: Wu
mesh_terms: D000143:Acids / Q000032:analysis; D017756:Aquaculture; D061006:Bays; D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D008670:Metals / Q000032:analysis; D009792:Oceans and Seas; D013440:Sulfides / Q000032:analysis; D055549:Volatile Organic Compounds; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D000143:Acids; D008670:Metals; D013440:Sulfides; D055549:Volatile Organic Compounds; D014874:Water Pollutants, Chemical
keywords: AVS; Coastal surface sediments; Leizhou Peninsula; Potential ecological risk assessment; SEM; Trace metals