DOI: 10.1016/j.marpolbul.2015.10.026
Scopus记录号: 2-s2.0-84951065699
论文题名: Metal release from contaminated coastal sediments under changing pH conditions: Implications for metal mobilization in acidified oceans
作者: Wang Z. ; Wang Y. ; Zhao P. ; Chen L. ; Yan C. ; Yan Y. ; Chi Q.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2015
卷: 101, 期: 2 起始页码: 707
结束页码: 715
语种: 英语
英文关键词: CO2-induced acidification
; Contaminated sediment
; Metal mobilization
; Release rate
; Water quality
Scopus关键词: Acidification
; Carbon
; Carbon dioxide
; Contamination
; Ecology
; Ecosystems
; Health risks
; Metal analysis
; Metals
; pH
; Seawater
; Water quality
; Adverse side effects
; Contaminated sediment
; Contamination levels
; Metal concentrations
; Metal mobilizations
; Pressurized chambers
; Release rate
; Sequential extraction
; Sediments
; cadmium
; copper
; nickel
; sea water
; zinc
; carbon dioxide
; metal
; water pollutant
; acidification
; carbon dioxide
; coastal sediment
; marine pollution
; metal
; mobilization
; pH
; sediment pollution
; water quality
; acidification
; Article
; chemical analysis
; chemical composition
; chemical procedures
; coastal waters
; environmental impact assessment
; geographic distribution
; health hazard
; pH measurement
; physical parameters
; pollution transport
; sea
; sediment
; total organic carbon
; water analysis
; water pollution
; water quality
; water sampling
; analysis
; chemistry
; China
; ecosystem
; pH
; sediment
; water pollutant
; China
; Fujian
; Maluan Bay
; Carbon Dioxide
; China
; Ecosystem
; Geologic Sediments
; Hydrogen-Ion Concentration
; Metals
; Oceans and Seas
; Seawater
; Water Pollutants, Chemical
; Water Quality
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: To investigate the impacts and processes of CO2-induced acidification on metal mobilization, laboratory-scale experiments were performed, simulating the scenarios where carbon dioxide was injected into sediment-seawater layers inside non-pressurized chambers. Coastal sediments were sampled from two sites with different contamination levels and subjected to pre-determined pH conditions. Sediment samples and overlying water were collected for metal analysis after 10-days. The results indicated that CO2-induced ocean acidification would provoke increased metal mobilization causing adverse side-effects on water quality. The mobility of metals from sediment to the overlying seawater was correlated with the reduction in pH. Results of sequential extractions of sediments illustrated that exchangeable metal forms were the dominant source of mobile metals. Collectively, our data revealed that high metal concentrations in overlying seawater released from contaminated sediments under acidic conditions may strengthen the existing contamination gradients in Maluan Bay and represent a potential risk to ecosystem health in coastal environments. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86281
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Boulevard, Xiamen City, China; Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; School of Environment, Northeast Normal University, Changchun, China
Recommended Citation:
Wang Z.,Wang Y.,Zhao P.,et al. Metal release from contaminated coastal sediments under changing pH conditions: Implications for metal mobilization in acidified oceans[J]. Marine Pollution Bulletin,2015-01-01,101(2)