南中国海沉积柱中痕量金属的分布和污染评估
发布时间：2021-08-15 16:01
本研究以南中国海东北部为研究领域,分析该海域沉积柱中金属（如V,Cr,Mn,Fe,Co,Ni,Zn,Cu,Ba和U）和总有机碳（TOC）的浓度最后本文根据生态风险评估（如污染因子（Cf）和污染负载指标（PLI））,评价该海域分析各种金属的影响程度,并综合评估总体污染状况。具体研究结果如下:（1）南海沉积物的重金属污染并非主要问题,金属Cr,Pb,Cd的浓度均低于标准参考值。南海沉积柱中金属的浓度范围为Mn为0.291±0.69-10.80±1.26ppm（平均值为2.81 ppm）,V 为 50.53±1.84-120.1±0.67 ppb（平均值为 93.00 ppb）,Cr 为60.65±3.29-26.65±3.89 ppb（平均值 49.78 ppb）,Fe 63.77±0.17-22.60±1.35 ppm（平均值为44.69 ppm）,Ni为25.41±1.65-90.11±1.64 ppb（平均值为63.81 ppb）,Cu为16.93±3.44-56.59±1.44 ppb（平均值为41.06 ppb）,Zn为140.2±2.44-396.9±1.14ppb（平均值为 ...
【文章来源】：厦门大学福建省 211工程院校 985工程院校 教育部直属院校
【文章页数】：78 页
【学位级别】：硕士
【文章目录】：
摘要
Abstract
Chapter 1 Introduction
1.1 General introduction
1.2 Characteristics and effects of Heavy metals
1.2.1 Physical characteristics
1.2.2 Chemical characteristics
1.2.3 Effects of heavy metals
1.3 Environmental Behavior of heavy metals
1.4 Heavy metals in marine sediments
1.5 Importance of South China Sea as a marginal sea
1.6 Objectives of the present study
Chapter 2 Literature Review
2.1 Research Progress of heavy metals in sediments from marine areas
2.2 Research Progress of Heavy Metals in SCS sediments
2.3 Research significance and research content
Chapter 3 Materials and Methods
3.1 Sampling site
3.2 Sample collection
3.3 Sample treatment and analysis
3.3.1 Materials and reagents
3.3.2 Pre treatment
3.3.3 Sample analysis
3.3.4 Quality Assurance and Quality Control
3.4 Total organic carbon
3.5 Assessments of pollution status indicator for metals
3.5.1 Geo-accumulation index (Igeo):
3.5.2 Ecological risk assessment
3.5.3 Contamination factor (Cf) and Pollution load index (PLI):
Chapter 4 Results and Discussions
4.1 Basic Parameter
4.2 Metals concentration in sediment core
4.3 Distribution and comparison pattern
4.3.1 Metals distribution
4.3.2 Pb Isotope (~(208/206)Pb and ~(207/206) Pb) distribution
4.3.3 Results Discussion for Metals Distribution
4.4 Results for Pollution Status Indicator
4.4.1 Geo Accumulation Index (I_(geo))
4.4.2 Contamination factor (C_f), Degree of contamination (C_d) and Pollution LoadIndex (PLI)
4.4.3 Potential ecological risk (E_r~i) Ecological Risk Assessment (RI)
4.4.4 Results discussion for pollution index
Chapter 5 Conclusion
Chapter 6 References
Appendix
Acknowledgements
本文编号：3344856
【文章来源】：厦门大学福建省 211工程院校 985工程院校 教育部直属院校
【文章页数】：78 页
【学位级别】：硕士
【文章目录】：
摘要
Abstract
Chapter 1 Introduction
1.1 General introduction
1.2 Characteristics and effects of Heavy metals
1.2.1 Physical characteristics
1.2.2 Chemical characteristics
1.2.3 Effects of heavy metals
1.3 Environmental Behavior of heavy metals
1.4 Heavy metals in marine sediments
1.5 Importance of South China Sea as a marginal sea
1.6 Objectives of the present study
Chapter 2 Literature Review
2.1 Research Progress of heavy metals in sediments from marine areas
2.2 Research Progress of Heavy Metals in SCS sediments
2.3 Research significance and research content
Chapter 3 Materials and Methods
3.1 Sampling site
3.2 Sample collection
3.3 Sample treatment and analysis
3.3.1 Materials and reagents
3.3.2 Pre treatment
3.3.3 Sample analysis
3.3.4 Quality Assurance and Quality Control
3.4 Total organic carbon
3.5 Assessments of pollution status indicator for metals
3.5.1 Geo-accumulation index (Igeo):
3.5.2 Ecological risk assessment
3.5.3 Contamination factor (Cf) and Pollution load index (PLI):
Chapter 4 Results and Discussions
4.1 Basic Parameter
4.2 Metals concentration in sediment core
4.3 Distribution and comparison pattern
4.3.1 Metals distribution
4.3.2 Pb Isotope (~(208/206)Pb and ~(207/206) Pb) distribution
4.3.3 Results Discussion for Metals Distribution
4.4 Results for Pollution Status Indicator
4.4.1 Geo Accumulation Index (I_(geo))
4.4.2 Contamination factor (C_f), Degree of contamination (C_d) and Pollution LoadIndex (PLI)
4.4.3 Potential ecological risk (E_r~i) Ecological Risk Assessment (RI)
4.4.4 Results discussion for pollution index
Chapter 5 Conclusion
Chapter 6 References
Appendix
Acknowledgements
本文编号：3344856
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