All foods/Lemons

2023 · United Kingdom · UK Pesticide Residues in Food monitoring · Annual

Pesticide residues found on lemons

98.8% of standard-grown samples had at least one detected residue. Standard-grown means samples not identified as organic (called conventional in the source data). Detection does not, by itself, mean the food was unsafe.

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Any residue98.8%Higher organic-buying priority

86 samples, standard-grown

No quantified residue1.2%Higher organic-buying priority

All reported results below quantification

Multiple residues98.8%Higher organic-buying priority

Two or more residues detected

Median residue count5Higher organic-buying priority

Highest observed count: 9

Above published limit2.3%Moderate organic-buying priority

Parser-based MRL comparison

Organic: any residue0%Higher organic-buying priority

10 samples, interpret cautiously

Annual context

How monitored results changed

Each row is a separate targeted survey. Samples can differ by retailer, origin and season, so this is context rather than a trend claim.

YearStandard-grown samplesAny residueMultiple residuesOrganic samplesOrganic any residue
2023Annual8698.8%98.8%100%
2019Annual85100%92.9%110%

Residue detail

What was found on lemons?

The most frequently detected residues across all 96 samples. This is the complete available table for this monitoring entry.

96samples checked

Detection does not establish harm. Health risk depends on both toxicity and the amount a person is exposed to.

What do these types mean?
  • FungicideControls fungal diseases such as moulds and mildews.
  • InsecticideControls insects that damage crops or stored food.
  • HerbicideControls weeds competing with a crop.
  • Growth regulatorChanges plant growth, development or ripening.
  • Other / mixedCovers multiple substances or a role that cannot be reliably assigned from the published name.

These labels describe agricultural function, not a toxicity ranking.

ResidueTypeSamplesMedianHigher resultTypical published limit
imazalilFungicide79 (82.3%)1.2 mg/kg2.4 mg/kg5 mg/kg
Reviewed evidence

What regulators assessed: Regulatory limits were derived from animal studies that observed changes including body-weight gain, blood chemistry and liver weight at higher doses.

Reference values
Role
Fungicide, including post-harvest treatment
Long-term reference (ADI)
0–0.03 mg/kg body weight per day
Single-day reference (ARfD)
0.05 mg/kg body weight

Reviewed from WHO/FAO JMPR, 2018

pyrimethanilFungicide57 (59.4%)1.5 mg/kg4.8 mg/kg8 mg/kg
Reviewed evidence

What regulators assessed: The long-term reference value was based on liver and thyroid changes observed in animal studies at higher doses.

Reference values
Role
Fungicide
Long-term reference (ADI)
0–0.2 mg/kg body weight per day
Single-day reference (ARfD)
Not considered necessary by JMPR

Reviewed from WHO/FAO JMPR, 2007

thiabendazoleFungicide39 (40.6%)0.6 mg/kg1.4 mg/kg7 mg/kg
Reviewed evidence

What regulators assessed: The long-term guidance value was based on body-weight suppression and nephrosis observed in an animal study at higher doses.

Reference values
Role
Fungicide and veterinary anthelmintic
Long-term reference (ADI)
0–0.1 mg/kg body weight per day
Single-day reference (ARfD)
1 mg/kg body weight (general population); 0.3 mg/kg for women of child-bearing age

Reviewed from WHO/FAO JMPR, 2019

2,4-D (sum)Other / mixed37 (38.5%)0.3 mg/kg0.8 mg/kg1 mg/kg
Health summary pending

No reviewed substance-specific summary is available, so no health effect is inferred.

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Spirotetramat (partial sum)Insecticide34 (35.4%)0.02 mg/kg0.06 mg/kg1 mg/kg
Health summary pending

No reviewed substance-specific summary is available, so no health effect is inferred.

Search WHO/FAO JMPR ↗
pyriproxifenInsecticide33 (34.4%)0.03 mg/kg0.08 mg/kg0.6 mg/kg
Health summary pending

No reviewed substance-specific summary is available, so no health effect is inferred.

Search WHO/FAO JMPR ↗
pyraclostrobinFungicide25 (26%)0.04 mg/kg0.1 mg/kg2 mg/kg
Health summary pending

No reviewed substance-specific summary is available, so no health effect is inferred.

Search WHO/FAO JMPR ↗
hexythiazoxOther / mixed21 (21.9%)0.02 mg/kg0.07 mg/kg1 mg/kg
Health summary pending

No reviewed substance-specific summary is available, so no health effect is inferred.

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azoxystrobinFungicide14 (14.6%)0.2 mg/kg0.7 mg/kg15 mg/kg
Health summary pending

No reviewed substance-specific summary is available, so no health effect is inferred.

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fludioxonilFungicide14 (14.6%)1.65 mg/kg4 mg/kg10 mg/kg
Health summary pending

No reviewed substance-specific summary is available, so no health effect is inferred.

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carbendazim (sum)Fungicide12 (12.5%)0.02 mg/kg0.04 mg/kg0.7 mg/kg
Health summary pending

No reviewed substance-specific summary is available, so no health effect is inferred.

Search WHO/FAO JMPR ↗
dithiocarbamatesFungicide12 (12.5%)0.2 mg/kg0.3 mg/kg5 mg/kg
Health summary pending

No reviewed substance-specific summary is available, so no health effect is inferred.

Search WHO/FAO JMPR ↗

“Higher result” is an approximate 95th-percentile observed concentration, not a safety threshold. Amounts of different pesticides should not be added together or compared directly. Functional types describe their usual agricultural role; they are not hazard or toxicity rankings.

ADI and ARfD are intake reference values, not limits for one food sample. A personal assessment would also require consumption, body-weight and wider exposure data. Source programmes report legal Maximum Residue Level results separately.

What this tells you

A monitoring result, not a verdict.

The UK programme is risk-based and targets foods where residues may be expected. It is not a test of every lemons product sold in United Kingdom. This entry’s latest included annual release is from 2023.

Comparable annual records are available for 2023, 2019.

Published MRLs or tolerances are regulatory limits associated with pesticide use. Consumer-risk assessment is a separate process.

Broader sample coverage. At least 50 samples: broader monitoring coverage, but still targeted rather than random.

Compare organic and standard-grown results →

Common questions

How to read these lemons results

Were pesticide residues detected on lemons?

98.8% of 86 standard-grown samples in the 2023 UK Pesticide Residues in Food monitoring dataset had at least one quantified residue.

Does that mean lemons were unsafe?

No. A laboratory detection is not, by itself, a consumer-risk finding. Regulators assess dietary risk separately.

Should I buy organic lemons?

The monitored organic samples had a 0% detection rate, compared with 98.8% for standard-grown samples. This is a shopping-priority comparison, not a health-risk score.