Sublethal toxicity test results for effluent from metal and diamond mines in Canada, collected under the Metal and Diamond Mining Effluent Regulations. The data is published as reported by mines and has not been verified for accuracy and completeness. It was last updated on 2026-05-12 by Environment and Climate Change Canada.
Use Cases
- Assessing effluent quality based on reported lethal or inhibition concentrations (LC50, IC25, EC25).
- Monitoring chronic exposure effects on survival, growth, and reproduction of test organisms.
- Analyzing compliance with regulatory testing frequency and species sensitivity requirements.
- Comparing toxicity results across different mine sites and discharge environments.
Strengths
- Data is collected under a specific federal regulation (MDMER), providing a standardized legal framework.
- Testing follows a defined schedule: twice yearly for three years initially, then quarterly for the most sensitive species.
- Results are reported using standardized toxicity metrics (LC50, IC25, EC25).
Limitations
- Data is published as reported by mines and has not been verified for accuracy and completeness.
- 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
- Reported by mines as part of mandatory Environmental Effects Monitoring studies under the MDMER.
- Freshness
- Last updated 2026-05-12 19:52:03.390529; freshness should be verified.
- Geography
- Canada (metal and diamond mine sites)