Past 140-year environmental record in the northern South China Sea: evidence from coral skeletal trace metal variations.
About 140-year changes in the trace metals in Porites coral samples from two locations in the northern South China Sea were investigated. Results of PCA analyses suggest that near the coast, terrestrial input impacted behavior of trace metals by 28.4%, impact of Sea Surface Temperature (SST) was 19.0%, contribution of war and infrastructure were 14.4% and 15.6% respectively. But for a location in the open sea, contribution of War and SST reached 33.2% and 16.5%, while activities of infrastructure and guano exploration reached 13.2% and 14.7%. While the spatiotemporal change model of Cu, Cd and Pb in seawater of the north area of South China Sea during 1986-1997 were reconstructed. It was found that in the sea area Cu and Cd contaminations were distributed near the coast while areas around Sanya, Hainan had high Pb levels because of the well-developed tourism related activities.
Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Xingang West Road 164, Guangzhou 510301, Guangdong Province, PR China; Radiogenic Isotope Facility, Centre for Microscopy and Microanalysis, University of Queensland, Brisbane, QLD 4072, Australia; Discipline of Nanotechnology and Molecular Sciences, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane, QLD 4001, Australia. Electronic address: songyinxian@gmail.com.
Yinxian
Y
Song
Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Xingang West Road 164, Guangzhou 510301, Guangdong Province, PR China; Radiogenic Isotope Facility, Centre for Microscopy and Microanalysis, University of Queensland, Brisbane, QLD 4072, Australia.
Kefu
K
Yu
Radiogenic Isotope Facility, Centre for Microscopy and Microanalysis, University of Queensland, Brisbane, QLD 4072, Australia.
Jianxin
J
Zhao
Radiogenic Isotope Facility, Centre for Microscopy and Microanalysis, University of Queensland, Brisbane, QLD 4072, Australia.
Yuexing
Y
Feng
Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Xingang West Road 164, Guangzhou 510301, Guangdong Province, PR China.
Qi
Q
Shi
Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Xingang West Road 164, Guangzhou 510301, Guangdong Province, PR China.
Huiling
H
Zhang
Discipline of Nanotechnology and Molecular Sciences, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane, QLD 4001, Australia.
Godwin A
GA
Ayoko
Discipline of Nanotechnology and Molecular Sciences, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, GPO Box 2434, Brisbane, QLD 4001, Australia.
Ray L
RL
Frost
D000818:Animals; D037421:Anthozoa / Q000737:chemistry*; D002681:China; D004784:Environmental Monitoring / Q000379:methods; D008670:Metals / Q000032:analysis*; D009792:Oceans and Seas; D012623:Seawater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data*
D008670:Metals; D014874:Water Pollutants, Chemical
Chemometrics; Coral; South China Sea; Spatiotemporal change model; Trace metals