Environment and Climate Change Canada provides a dataset reconstructing anthropogenic depositional fluxes of 45 elements, including mercury and heavy metals, over approximately 150 years. The data is derived from multiple lake sediment cores in Kejimkujik National Park, Nova Scotia, a region sensitive to long-range atmospheric contamination. The dataset is associated with a 2019 scientific publication detailing methods, quality assurance, and interpretations.
Use Cases
- Reconstructing historical pollution trends based on sediment core data mentioned in the description
- Analyzing the response of lake ecosystems to changing atmospheric mercury sources based on the described depositional fluxes
- Investigating links between acidification and mercury methylation in lakes as described in the region's limnological conditions
- Assessing the impact of local gold mining and distant industrial sources on metal accumulation as referenced in the description
Strengths
- Focuses on 45 elements, including mercury and heavy metals of concern
- Provides a reconstruction spanning approximately 150 years
- Data is subject to a peer-reviewed publication with full QA/QC and method details
Limitations
- Column-level documentation is absent; field semantics must be inferred after download
- Row count is unknown, which may limit suitability assessment
Provenance
- Source
- Environment and Climate Change Canada
- Collection Method
- Reconstructed from multiple lake sediment cores
- Time Range
- Approximately 150 years
- Freshness
- Last updated 2026-03-16 15:01:12.587287; freshness should be verified
- Geography
- Kejimkujik National Park, Nova Scotia, Canada