Fish Contaminant Levels Across Ontario for Consumption Advice

Ontario-wide data on chemical contaminants in fish, including mercury, PCBs, dioxins, furans, and organochlorine pesticides. The Government of Ontario collects this data to track long-term trends, provide site-specific assessments, and evaluate remedial measures. The dataset is used to generate fish consumption advice, such as the Guide to Eating Sportfish.

Use Cases

• Track long-term trends in fish contaminant levels across Ontario based on province-wide monitoring
• Provide site-specific risk assessments for fish consumption based on contaminant concentrations
• Evaluate the success of remedial measures to reduce contaminants in waterbodies
• Generate fish consumption advice (e.g., Guide to Eating Sportfish) based on contaminant data

Strengths

• Data covers multiple contaminants including mercury, PCBs, dioxins/furans, and organochlorine pesticides
• Last updated 2026-04-17, indicating planned future maintenance
• Published by the Government of Ontario, an authoritative source

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data may reflect geographic bias inherent to Ontario-only coverage

Provenance

Source

Government of Ontario

Collection Method

Data collected across Ontario waterbodies

Freshness

Last updated 2026-04-17 15:41:49.913947

Geography

Ontario, Canada