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Assessment of the metal contamination evolution in the Loire estuary using Cu and Zn stable isotopes and geochemical data in sediments

1. Introduction
2. Methods
2.1. Study area
2.2. Sampling and sample preparation
2.3. Analytical methods
2.4. Enrichment factor
3. Results
3.1. Isotope and geochemical data of sediments
4. Discussion
4.1. Assessing temporal and spatial contamination of trace metals
4.2. Identifying anthropogenic and natural sources using Cu and Zn isotopes
5. Conclusions
Aknowledgments
References