Historical records of trace metals in two sediment cores of Jiaozhou Bay, north China

被引：7

作者：

Gu, Xiang ^{[1
]}

Xin, Ming ^{[2
]}

Wang, Jing ^{[3
]}

Lu, Shuang ^{[1
]}

Lian, Maoshan ^{[1
]}

Lin, Chunye ^{[1
]}

Ouyang, Wei ^{[1
,4
]}

He, Mengchang ^{[1
]}

Liu, Xitao ^{[1
]}

Wang, Baodong ^{[2
]}

机构：

[1] Beijing Normal Univ, Sch Environm, Beijing 100875, Peoples R China

[2] Minist Nat Resources, MNR Key Lab Marine Ecoenvironm Sci & Technol, Inst Oceanog 1, Qingdao 266061, Peoples R China

[3] Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China

[4] Beijing Normal Univ, Adv Interdisciplinary Inst Environm & Ecol, Zhuhai 519087, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2022年 / 175卷

基金：

中国国家自然科学基金;

关键词：

Trace metals; Sediment core; Anthropogenic activities; Jiaozhou Bay; Contamination factor; Ecological risk; POTENTIALLY TOXIC ELEMENTS; ECOLOGICAL RISK-ASSESSMENT; GEOCHEMICAL BASE-LINE; HEAVY-METALS; SURFACE SEDIMENTS; BOHAI SEA; SOURCE IDENTIFICATION; COASTAL SEDIMENTS; POLLUTION STATUS; ORGANIC-CARBON;

D O I：

10.1016/j.marpolbul.2022.113400

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

To investigate the long-term effects of urbanization and industrialization on coastal trace metal contamination, two sediment cores, Q21 (representing 1965-2018) and Q23 (representing 1986-2018), collected from the adjacent coasts of the east old town and west new area of Qingdao were analyzed. Although the concentrations of As, Cd, Co, Cr, Cu, Ni, Pb, Sc, and Zn were higher in Core Q21, the increasing trends in their concentrations and contamination levels were more obvious in Q23, especially since the 2000s. Moreover, the urbanization rates of the new area (1978-2017) were significantly positively correlated with the historical metal concentrations in Q23. Affected by the rapid socio-economic development in the new area, the combined excessive concentrations of the eight metals (excluding Sc) increased faster in Q23 (0.14-78.4 mg/kg) than Q21 (0.58-45.3 mg/kg). Overall, the sediment Core Q23 experienced higher trace metal contamination and ecological risks than Core Q21.

引用

页数：11

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