Perchlorate Levels in Canadian Fruits, Vegetables, Dairy, and Infant Formula

611 food samples collected from Canadian retail stores in 2010-11 were analyzed for perchlorate contamination. The Canadian Food Inspection Agency conducted this targeted survey to establish baseline data, finding detectable perchlorate in 65% of fruits/vegetables, 87% of dairy, and 63% of infant formula. Results were shared with Health Canada for future risk assessments.

Use Cases

• Analyze perchlorate concentration distributions across commodity types like cucumbers, tomatoes, cheese, yogurt, and soy-based infant formula.
• Compare contamination levels (in parts per billion) between fresh produce, dairy products, and infant formulae using the sample results.
• Identify foods with the highest average perchlorate levels, such as cucumbers (48.6 ppb) and tomatoes (44.9 ppb), for targeted risk monitoring.
• Assess detection frequency metrics (e.g., 65% of fruit/vegetable samples) to understand perchlorate prevalence in the Canadian retail market.

Strengths

• 611 total samples provide a substantial baseline for three major food categories.
• Detailed results include specific average concentration levels for high-risk items like cucumbers (48.6 ppb) and soy-based infant formula (16.7 ppb).
• Data collection followed a targeted government surveillance initiative, ensuring methodological rigor.

Limitations

• Data is from a single survey year (2010-11) and may not reflect current contamination levels.
• Sample sizes vary by category (433 fruits/vegetables, 89 dairy, 89 infant formula), limiting granular subgroup analysis.
• No maximum levels or compliance standards existed for comparison, limiting regulatory context.

Provenance

Source

Canadian Food Inspection Agency

Collection Method

Samples collected from Canadian retail stores and analyzed for perchlorate levels.

Time Range

2010-2011

Freshness

Data collection occurred in 2010-11; the record was last updated in 2026.

Geography

Canada