Distribution, risk assessment, and quantitative source apportionment of heavy metals in surface sediments from the shelf of the northern South China Sea

被引：16
|
作者：
Cai, Pengjie [1 ,2 ]
Cai, Guanqiang [1 ,3 ]
Yang, Jingsui [1 ,2 ,3 ]
Li, Xuejie [1 ,3 ]
Lin, Jie [1 ]
Li, Shun [1 ]
Zhao, Li [1 ]
机构：
[1] China Geol Survey, Guangzhou Marine Geol Survey, Guangzhou 510760, Peoples R China
[2] Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China
[3] Southern Marine Sci & Engn Guangdong Lab Guang Zho, Guangzhou 511458, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 2023年 / 187卷
基金：
中国国家自然科学基金;
关键词：
Distribution characteristics; Heavy metals; Positive matrix factorization; Marine sediment; Northern South China Sea; PEARL RIVER ESTUARY; POSITIVE MATRIX FACTORIZATION; TRACE-ELEMENTS; WASTE-WATER; GUANGDONG PROVINCE; NORTHWESTERN SHELF; COASTAL SEDIMENTS; CONTINENTAL-SHELF; MARINE-SEDIMENTS; CONTAMINATION;
D O I：
10.1016/j.marpolbul.2023.114589
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The concentration of heavy metals (Cu, Pb, Zn, Cr, Co, and Ni) from 421 sediment samples from the shelf of the northern margin of the South China Sea (SNSCS) was analyzed. The heavy metal content and calculated potential ecological indicators (Eri < 40 and RI < 160) indicate that there is low potential ecological risk of heavy metal pollution in the SNSCS. The mean effects range-median quotient (M-ERM-Q) and hazard quotient (HQ) values of sediment toxicological characteristics indicate that heavy metals are a potential toxicological risk. The high-risk area is mainly distributed in the southwest of the nearshore SNSCS. The positive matrix factorization (PMF) analysis results showed that major contributors to heavy metal pollution were natural sources and anthropogenic activities in the SNSCS. The government should pay particular attention to the monitoring of heavy metals in the nearshore southwest of the SNSCS.
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页数：10
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