vegetable Data Profile#33 of 34 in vegetables

Onions

Onions has a pesticide load score of 10 and a Food Compass 2.0 score of 91, based on 3,836 monitoring samples.

Moderate Evidence
Clean produce

Shopping Verdict: Conventional is fine. Low pesticide residue detected.

Compare on Live Compass ↗
Pesticide Load10Low load (0=clean, 100=max)
Food Compass 2.091exact nutritional match
Monitoring Samples3,83620112024 lab tests
Benchmark Coverage73.3%of detected residue load

Preparation & Safety

How to wash and prepare onions

For onions, pesticide penetration into the edible portion is relatively low. Wash thoroughly under cool running water for 30 seconds before peeling or slicing to prevent transferring surface contaminants onto clean kitchen tools.

Market Comparison

How onions varies by market

MarketLoad ScoreSamples TestedDetection RateReliability
US142,33720%✓ Solid (2337)
UK157139.4%✓ Solid (71)
DE2638534%✓ Solid (385)
FR660%⚠️ Sparse (6)
IT104774.4%✓ Solid (477)
ES551811.1%⚠️ Sparse (18)
PT225347.2%✓ Solid (53)
CA348919.2%✓ Solid (489)

⚠️ Data Note: Markets marked with Sparse have under 30 official laboratory samples in the public record. A 0% detection in sparse tests does not guarantee absolute absence of residue in that region.

Chemical Residue Breakdown

Primary chemicals detected on onions

Acephate

Detection Rate
0.2%
Benchmark Usage
0.019%
chronic toxicity benchmark

Fosetyl-Al (sum of fosetyl, phosphonic acid and their salts, expressed as fosetyl)

Detection Rate
1.4%
Benchmark Usage
0.0085%
chronic toxicity benchmark

Fluopyram

Detection Rate
1.7%
Benchmark Usage
0.0027%
chronic toxicity benchmark

Chlorpropham

Detection Rate
0.1%
Benchmark Usage
0.0008%
chronic toxicity benchmark

Public Evidence Trail

Official monitoring sources for onions

Explore Peer Produce

More vegetables in the guide

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