G.R. Quadra's dataset supports a scientific article analyzing water quality in the Doce River basin. It contains publicly available records from July 1997 to March 2025, covering six key parameters at sites affected and not affected by the dam breach. The data was last updated on May 19, 2026, via the DANS Data Station Life Sciences Collection.
Use Cases
- Analyzing long-term trends in dissolved aluminium and iron concentrations to assess basin-wide water quality issues.
- Comparing pre- and post-breach levels of total dissolved solids and turbidity near the dam breach site.
- Evaluating the suitability of total arsenic and manganese as indicators for the specific dam breach event versus broader environmental factors.
- Modeling water quality recovery over a decade following a major environmental disaster.
Strengths
- Covers a long temporal range from July 1997 to March 2025, enabling pre- and post-event analysis.
- Focuses on six consistently monitored parameters (dissolved Al, Fe, total As, Mn, TDS, turbidity) across the basin.
- Includes data from both affected sites and non-affected reference sites for comparative analysis.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Description metadata is limited; actual data quality requires manual inspection after download.
Provenance
- Source
- DANS Data Station Life Sciences Collection, author G.R. Quadra.
- Collection Method
- Analysis of publicly available water quality records.
- Time Range
- July 1997 to March 2025
- Freshness
- Last updated 2026-05-19 05:10:43; freshness should be verified.
- Geography
- Doce River basin, Brazil.