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Overvejende falsk Overfortolket Evidensens sikkerhed: moderat foreløbig C-EGG-08

Industriel (kommerciel, burbaseret) ægproduktion har gjort ægget til en bærer af dioxiner, PCB'er, PFAS og tungmetaller.

Kort fortalt: Denne påstand er overvejende falsk: forurening forekommer ved enkelthændelser, i forurenede områder og med visse fodertyper, men almindelige kommercielle æg på overvågede markeder ligger for det meste under de lovlige grænser, og frilandshøns eller høns i baghaver er ofte mere udsat for forurenende stoffer i jorden end burhøns.
Konklusion: Forurening af æg forekommer ved enkelthændelser og i forurenede områder, ofte mere hos frilandshøns end hos burhøns; det er ikke et generelt træk ved industriæg.
  1. Oprindeligt udsagn
  2. Videnskabelig vurdering
  3. Videnskabelig evidens i detaljer
  4. På almindeligt sprog
  5. Studier om denne påstand
  6. Regional kontekst
  7. Hvad gælder i mit land?
  8. Referencer

Oprindeligt udsagn

فأعلاف الدواجن، وقربها من مصادر التلوث الصناعي، والاكتظاظ في الأقفاص، حوّلته إلى ناقل صامت للديوكسينات وثنائيات الفينيل متعدد الكلور ومركّبات PFAS الأبدية والمعادن الثقيلة

ordret ifølge kilden. Oversættelse ved projektet; den arabiske ordlyd er gældende.

Oversættelse

Industriel (kommerciel, burbaseret) ægproduktion har gjort ægget til en bærer af dioxiner, PCB'er, PFAS og tungmetaller.

Oprindelse

Kildestatus
Arkivets redaktion
Tilskrivning
Archive editors (not Elawady)
Oprindelse
https://eltayebat.com/rule/industrial-eggs/
Usikkerhed om tilskrivningen
Narrative and study selection written by the archive operators; the archive states the forbidden section is documented independently of Dr. Diaa's words.
Påstået mekanisme

Contaminated feed, nearby industrial pollution and caged housing.

Påstået helbredseffekt

Cancer (dioxin/PCB), immune and developmental effects (PFAS), heavy-metal toxicity.

Berørt befolkningsgruppe

general population (not specified)

Geografisk afgrænsning hos Elawady

none found

Videnskabelig vurdering

Overvejende falsk – Væsentlige dele af udsagnet er ikke understøttet af evidensen eller er stærkt overdrevne.

Evidensens sikkerhed: moderat – Yderligere forskning kan stadig påvirke vurderingen.

1. Hvad blev der påstået?

Commercial industrial eggs are a 'silent carrier' of persistent pollutants and heavy metals because of feed, pollution and cages.

2. Hvad er påviseligt korrekt?

Eggs can concentrate fat-soluble pollutants from feed and soil. The 1999 Belgian feed incident caused very high dioxin/PCB levels in eggs (max 713 pg TEQ/g fat). Hotspot studies found exceedances of EU limits. EFSA (2020) named 'eggs and egg products' among the main contributors to dietary PFAS exposure and concluded that parts of the European population exceed the PFAS tolerable weekly intake.

3. Hvad er forkert eller overdrevet?

Most cited studies blame outdoor/free-range or backyard hens with soil access, not cages: the Vietnamese study found higher dioxins in free-range eggs; the German review (A-EGG-05) states that outdoor laying hens are especially sensitive to soil contamination; the Tanzanian and Chinese studies concern backyard/free-range eggs; the Danish PFAS problem concerned organic eggs (free-range and barn eggs had absent or low PFAS) and stopped after fishmeal was removed. The Indian study found metal levels below Indian standards except some metals in chicken meat. Incident and hotspot data are presented as typical of commercial eggs.

4. Hvad er stadig uklart?

Current background levels of PFAS and dioxins in routine EU/Egyptian eggs were not systematically reviewed here.

5. Hvilke studier understøtter det?

A-EGG-01 (incident), A-EGG-06 (PFAS via fishmeal, organic), I-EGG-16 (EFSA PFAS: eggs one of main contributors).

6. Hvilke studier modsiger det?

A-EGG-03, A-EGG-04, A-EGG-02, A-EGG-05 (higher burden in free-range/backyard/outdoor hens); A-EGG-08 (levels below national standards); A-EGG-06 itself (free-range and barn eggs low/absent).

7. Hvad gælder i Tyskland og Europa?

EU maximum levels for dioxins and dl-PCBs in eggs apply (e.g., 5 pg WHO-TEQ/g fat for the sum, cited in A-EGG-04 from Regulation (EU) 1259/2011). EFSA's 2018 occurrence data (I-FSH-17) show EU 'eggs and egg products' at a mean of 1.17/1.30 and a 95th percentile of 4.38/4.39 pg TEQ/g fat (sum of PCDD/Fs and DL-PCBs), i.e. mostly well below the limit; the main dietary contributors to dioxin exposure were fish, cheese and meat. Germany's Environment Agency work (A-EGG-05) concerns soil-related contamination of outdoor hens.

8. Hvad vides om Egypten?

No Egyptian monitoring data on dioxins/PFAS in eggs were found. Market surveys of commercial eggs in Saudi Arabia (Pb, Cd and As not detected; I-EGG-121) and Iran (Pb and Cd below limits, no estimated risk; I-EGG-122) do not show heavy-metal problems in commercial eggs. Hotspot-type risks (waste burning, industrial soils) for backyard hens are plausible but not quantified.

9. Hvilken praktisk konklusion er passende?

Forurening af æg er reel, men knyttet til specifikke hændelser, forurenede steder og foderingredienser; det er ikke en generel egenskab ved buræg eller kommercielle æg.

Detaljer om vurderingen

Begrundelse for evidensens sikkerhed

The cited contamination studies are real, but they document a single feed-contamination incident (Belgium 1999), local pollution hotspots (e-waste site China, airbase Vietnam, gold/copper mines Thailand/India, backyard burning Tanzania) and an organic-feed fishmeal problem (Denmark). Several show HIGHER levels in free-range/backyard eggs, i.e. the opposite of the 'industrial/caged' attribution. EFSA identifies eggs as one of several contributors to PFAS exposure, which supports a limited, non-production-specific concern.

Kildekvalitet

Archive editorial; numbers are taken correctly from abstracts, but the selection and framing (industrial cages) are not supported by the studies themselves.

Regional overførbarhed

Hotspot results (China, Vietnam, Tanzania, Thailand, India) do not transfer to routine EU supply; the Belgian incident led to stricter EU feed controls; the Danish PFAS case was resolved by removing fishmeal from feed.

Individuelle undtagelser

Households keeping hens on contaminated soil (old industrial sites, near burning of waste) can have high exposure; this concerns backyard/free-range hens rather than caged hens.

Påstandens regionale rækkevidde
afhænger af produktionsforholdene
Senest gennemgået
26. oktober 2026 foreløbig

Videnskabelig evidens i detaljer

Overfortolket – Der findes et reelt fund, men påstanden udleder mere af det, end data tillader (f.eks. sammenhæng tolket som årsag, dyredata overført til mennesker, lille effekt fremstillet som stor).

Forskningsspørgsmål: Are commercial (industrial, caged) eggs generally contaminated with dioxins, PCBs, PFAS and heavy metals at levels of health concern, compared with other eggs?

Forskningsspørgsmål i detaljer (PECO)
Population
Consumers of commercial eggs (EU, Middle East, Egypt)
Intervention eller eksponering
Commercial/caged eggs
Sammenligning
Free-range/backyard eggs; legal maximum levels; tolerable intakes
Geografisk rækkevidde
production- and location-dependent
Effektmål
  • contaminant concentrations vs legal limits
  • estimated exposure vs TWI/TDI

Studieresultater som rapporteret af forfatterne. Vores vurdering følger nedenfor.

Hvad taler for påstanden?

  • EFSA on PFAS in food

    EFSA CONTAM Panel. EFSA J 2020 · PMID 32994824 · DOI 10.2903/j.efsa.2020.6223 Risikovurderingabstract kontrolleret

    EFSA 2020: eggs are among the main contributors to dietary PFAS exposure, and parts of the population exceed the PFAS TWI.

    Faktisk resultat
    TWI 4.4 ng/kg bw/week; fish, fruit and eggs main contributors.
    Metodisk kvalitet
    high (EFSA risk assessment)
    Relevans
    partly direct (eggs in general, not 'industrial' eggs)
    Begrænsninger
    Not production-system-specific.

    Original publikation

  • Belgian 1999 feed scandal: dioxins and PCBs in food

    van Larebeke N et al.. Environ Health Perspect 2001 · PMID 11333188 · DOI 10.1289/ehp.01109265 Måle- / restkoncentrationsstudieabstract kontrolleret

    Belgian 1999 feed incident: very high dioxin/PCB levels in eggs.

    Faktisk resultat
    Egg dioxin mean 32.0, max 713.3 pg TEQ/g fat.
    Metodisk kvalitet
    moderate (incident exposure data)
    Relevans
    incident, not routine
    Begrænsninger
    Single incident.

    Original publikation

Hvad taler imod påstanden?

  • EFSA: dioxins in food (2018)

    EFSA Panel on Contaminants in the Food Chain (CONTAM) et al.. EFSA J 2018 · PMID 32625737 · DOI 10.2903/j.efsa.2018.5333 Risikovurderingabstract kontrolleret

    EFSA 2018 dioxin opinion: EU 'eggs and egg products' sum PCDD/F + DL-PCB mean 1.17/1.30 and P95 4.38/4.39 pg TEQ/g fat; main dietary contributors are fish, cheese and meat.

    Faktisk resultat
    Mean about 26% and P95 about 88% of the EU maximum level of 5 pg TEQ/g fat (recalculated).
    Metodisk kvalitet
    high (EU monitoring data)
    Relevans
    direct for routine EU eggs
    Begrænsninger
    EU data; Egypt not covered.

    Original publikation

  • Dioxins in eggs near a former airbase in Vietnam

    Nghiem TX et al.. Bull Environ Contam Toxicol 2022 · PMID 35037074 · DOI 10.1007/s00128-021-03419-w Måle- / restkoncentrationsstudieabstract kontrolleret

    Vietnam hotspot: free-range eggs had higher dioxins than non-free-range eggs.

    Faktisk resultat
    Higher dioxins in free-range eggs; egg-soil TEQ correlation rho 0.671.
    Metodisk kvalitet
    moderate
    Relevans
    direct for the cage vs free-range comparison
    Begrænsninger
    Hotspot.

    Original publikation

  • Saudi market eggs: no lead, cadmium or arsenic detected

    Korish MA, Attia YA. Animals (Basel) 2020 · PMID 32331361 · DOI 10.3390/ani10040727 Måle- / restkoncentrationsstudieabstract kontrolleretnyligt tilføjet

    Saudi commercial table eggs: Pb, Cd and As not detected.

    Faktisk resultat
    Not detected; liver had the highest metals.
    Metodisk kvalitet
    low (small market survey)
    Relevans
    direct, regional
    Begrænsninger
    Small sample.

    Original publikation

Hvad siger den samlede evidens?

Redaktionel vurdering på grundlag af studierne ovenfor – ikke selv et studieresultat.

Hvilken position er bedst underbygget?

Egg contamination is real in incidents, near pollution hotspots and with specific feed ingredients (e.g., fishmeal), and eggs contribute to PFAS exposure; but routine commercial eggs in monitored markets are mostly below legal limits, and outdoor/backyard hens are often more exposed through soil than caged hens.

Hvorfor nogle studier vejer tungere

Systematic monitoring data (EFSA) and market surveys represent routine supply; hotspot and incident studies represent exceptions.

Er en årsagssammenhæng påvist? Ikke relevant The claim concerns contamination levels, not a health outcome trial.

Resterende usikkerhed

No Egyptian monitoring data on dioxins/PFAS in eggs were found.

Begrundet konklusion

Contamination is not a general property of industrial or caged eggs.

Hvorfor ser studierne ud til at være uenige?

Incident/hotspot data vs routine monitoring: they describe different situations, not contradictory findings.

Afhænger det af landet?
Generelle biologiske virkninger
Fat-soluble pollutants transfer from feed and soil into egg yolk.
Spisevaner
Not relevant.
Fødevarens oprindelse
Backyard hens with soil access near waste burning or industry are most exposed.
Forurenende stoffer
Dioxins, PCBs, PFAS, metals.
Nationale produktionsforhold
Egyptian backyard production is common; hotspot risks plausible but unquantified.
Retsregler
EU maximum levels for dioxins/DL-PCBs in eggs (5 pg TEQ/g fat for the sum).
Faktiske overvågningsdata
EU: EFSA occurrence data; Gulf/Iran market surveys low; Egypt: none found.

En regional forskel, der ændrer konklusionen, er ikke understøttet af robuste data.

Statistisk genberegning
  • Routine levels vs EU maximum level – EU egg mean UB 1.30 = 26% of 5 pg TEQ/g fat; P95 4.39 = 88%; Belgian incident mean 6.4x and max 143x the limit. genberegnet
Sikkerheden af den samlede evidens (GRADE, forenklet)
Primært effektmål
Contaminant levels in routine commercial eggs vs limits
Udgangsniveau
høj (randomiserede forsøg)
Grunde til nedgradering
  • indirectness (no Egyptian data)
Resultat
moderat

Forenklet vurdering ved én bedømmer efter GRADE-tilgangen; ikke et formelt GRADE-panel. GRADE vurderer den samlede evidens for ét effektmål, ikke enkelte studier.

Søgestrategi

Dokumenterede litteratursøgninger til denne gennemgang (søgestrenge i databasens originale syntaks).

DatabaseDatoSøgningSøgt efterHitsInkluderet
Europe PMC26. oktober 2026TITLE:(egg*) AND (TITLE:dioxin* OR TITLE:PCB* OR TITLE:"persistent organic" OR TITLE:PFAS OR TITLE:perfluoro*) AND (TITLE:"free-range" OR TITLE:cage* OR TITLE:"housing" OR TITLE:organic OR TITLE:"production system")begge retninger37
Europe PMC26. oktober 2026(TITLE:egg* OR TITLE:"table eggs") AND (Egypt* OR Egyptian) AND (TITLE:"heavy metal*" OR TITLE:lead OR TITLE:cadmium OR TITLE:dioxin* OR TITLE:pesticide* OR TITLE:residue* OR TITLE:aflatoxin*)begge retninger24
PubMed26. oktober 2026"EFSA J"[ta] AND dioxins dioxin-like PCBs feed food risk human health 2018retningslinjer1

Åbne spørgsmål

Egyptian monitoring of dioxins, PFAS and metals in commercial and backyard eggs.

Hvor grundigt blev dette kontrolleret?

12 tilknyttede studier: 0 kontrolleret i fuldtekst (heraf 0 med en struktureret vurdering af risiko for bias), 12 på grundlag af abstractet, 0 kun bibliografisk. Der har endnu ikke fundet en formel vurdering med to uafhængige bedømmere sted, og heller ingen uafhængig menneskelig ekspertgennemgang.

Seneste videnskabelige gennemgang: 26. oktober 2026

Vurderingens historik
  1. 25. oktober 2026 · Fase 1 · Første vurdering: Overvejende falsk (moderat)
  2. 26. oktober 2026 · Fase 4 (systematisk evidensgennemgang) · Undersøgt igen med udvidet evidens; vurdering uændret: Overvejende falsk (moderat)
    EU monitoring data (EFSA 2018) and regional market surveys (Saudi Arabia, Iran) confirm that routine commercial eggs are mostly within limits. Verdict and certainty unchanged.
    Nye kilder: I-EGG-121 I-EGG-122

På almindeligt sprog

Arkivet nævner studier, der fandt giftige forurenende stoffer i æg. Disse studier er reelle, men de fleste af dem stammer fra én foderskandale i Belgien i 1999 eller fra stærkt forurenede steder som tidligere elektronikaffaldspladser eller miner. Flere studier fandt flere forurenende stoffer i æg fra frilandshøns eller høns i baghaver, fordi disse høns optager forurenet jord. Et dansk problem med PFAS i økologiske æg forsvandt, efter at fiskemel blev fjernet fra foderet. Studierne viser altså ikke, at almindelige kommercielle æg generelt er forurenede.

Studier om denne påstand

Studier, der understøtter påstanden (4)

  • Belgian 1999 feed scandal: dioxins and PCBs in food

    van Larebeke N et al.. Environ Health Perspect 2001 · PMID 11333188 · DOI 10.1289/ehp.01109265
    Måle- / restkoncentrationsstudieciteret af Tayebat-arkivetabstract kontrolleret★ nøglestudie

    After contaminated feed was distributed, some eggs reached very high dioxin and PCB levels; modelled extra cancers ranged from 40 to 8,000.

    Industrial (commercial, caged) egg production has turned the egg into a carrier of dioxins, PCBs, PFAS and heavy metals.

    Understøtter studiet den konkrete påstand? Delvist · Metodisk kvalitet: moderat · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    What were PCB and dioxin levels in food after the 1999 Belgian feed incident, and what health impact can be expected?

    Hvordan blev studiet udført?

    Exposure assessment and risk estimate based on 20,491 food/feed samples from the Belgian federal database after a feed contamination incident

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    20,491 samples; Belgian food chain (feed, cattle, pork, poultry, eggs, milk, fat-containing foods); population of 10 million

    Hvad blev der faktisk fundet?

    Eggs: dioxin mean 32.0 +/- 104.4 pg TEQ/g fat, max 713.3 pg; PCBs mean 392.7 +/- 2883.5 ng/g fat, max 46,000 ng. Chicken: dioxin max 2613.4 pg TEQ/g fat, PCBs max 51,059 ng/g fat. Estimated total excess cancers 40-8,000.

    Hvor stor var den observerede effekt?

    Descriptive (means, SD, maxima); intake and cancer estimates by modelling

    Hvad betyder resultaterne i hverdagen?

    Shows what happens when feed is contaminated, not what is in eggs normally.

    Hvilke begrænsninger har studiet?

    Incident-specific; maxima are not representative of normal supply; Cancer estimate is a model with a 200-fold range; Sampling targeted suspected farms

    Hvad siger det om Elawadys konkrete påstand?

    Supports that eggs can carry pollutants after feed incidents; not that commercial eggs generally do.

    Gælder resultaterne for Tyskland og Europa?

    Historical EU incident; directly relevant to the EU feed-safety history but not to current routine exposure.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    Cannot show current contamination levels or actual cancer cases.

    Videnskabelige detaljer →

  • PFAS in Danish organic eggs from fishmeal feed

    Granby K et al.. Chemosphere 2024 · PMID 37944762 · DOI 10.1016/j.chemosphere.2023.140553
    Måle- / restkoncentrationsstudieciteret af Tayebat-arkivetabstract kontrolleret★ nøglestudie

    Organic eggs had PFAS from fishmeal; ordinary free-range and barn eggs had little or none; removing fishmeal solved the problem.

    Industrial (commercial, caged) egg production has turned the egg into a carrier of dioxins, PCBs, PFAS and heavy metals.

    Understøtter studiet den konkrete påstand? Delvist · Metodisk kvalitet: moderat · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    What PFAS levels occur in Danish commercial eggs and where do they come from?

    Hvordan blev studiet udført?

    Survey of PFAS in commercial eggs plus fishmeal analysis and exposure assessment

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    Eggs from eight organic farms; two fishmeal samples; ten follow-up organic samples (total survey size not in abstract); Commercial eggs from larger Danish farms (free-range, barn, organic)

    Hvad blev der faktisk fundet?

    Free-range and barn eggs: absent or low PFAS. Organic eggs: nine PFAS, e.g. PFOS 2.62 +/- 0.11 ng/g yolk (farm 11-13). 95th percentile exposure of sum4PFAS from 311 g (~5-6) organic eggs/week for children 4-9 y: 10.4 ng/kg bw, exceeding TWI 4.4. After fishmeal removal, 8/10 samples had no PFAS.

    Hvor stor var den observerede effekt?

    Descriptive; ANOVA-type comparison (p = 1.4E-25)

    Hvad betyder resultaterne i hverdagen?

    Feed ingredients can bring pollutants into eggs; controls can fix it.

    Hvilke begrænsninger har studiet?

    Exposure at 95th percentile and solely from eggs; Small number of farms

    Hvad siger det om Elawadys konkrete påstand?

    Supports egg PFAS risk via feed; contradicts the industrial framing.

    Gælder resultaterne for Tyskland og Europa?

    High (EU country, EFSA TWI), but a specific feed issue.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    Cannot show that eggs in general exceed PFAS limits.

    Videnskabelige detaljer →

  • Heavy metals in eggs near a Thai gold mine

    Aendo P et al.. Foods 2022 · PMID 36140919 · DOI 10.3390/foods11182791
    Måle- / restkoncentrationsstudieciteret af Tayebat-arkivetabstract kontrolleret

    Eggs from free-grazing ducks near the mine had more mercury and lead.

    Industrial (commercial, caged) egg production has turned the egg into a carrier of dioxins, PCBs, PFAS and heavy metals.

    Understøtter studiet den konkrete påstand? Delvist · Metodisk kvalitet: lav · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    Are eggs from farms near a closed gold mine contaminated with heavy metals, and what is the cancer risk?

    Hvordan blev studiet udført?

    Cross-sectional measurement of heavy metals in eggs, blood, feed, soil and water with cancer risk estimation

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    Not stated in abstract; Chicken farms, duck farms and free-grazing duck farms <25 km and >25 km from a gold mine

    Hvad blev der faktisk fundet?

    Hg, Pb, Mn in free-grazing duck eggs significantly higher <25 km; ILCR for Pb and Cd exceeded 10^-4 for all age groups in both areas, highest for chicken eggs <25 km.

    Hvor stor var den observerede effekt?

    Group comparisons (p<0.05); correlation

    Hvad betyder resultaterne i hverdagen?

    Mining pollution can enter local eggs.

    Hvilke begrænsninger har studiet?

    Mining hotspot; ILCR model assumptions (Pb carcinogenicity slope); Sample sizes not in abstract

    Hvad siger det om Elawadys konkrete påstand?

    Shows hotspot contamination only.

    Gælder resultaterne for Tyskland og Europa?

    Very low.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    Cannot describe commercial eggs elsewhere.

    Videnskabelige detaljer →

  • EFSA on PFAS in food

    EFSA CONTAM Panel. EFSA J 2020 · PMID 32994824 · DOI 10.2903/j.efsa.2020.6223
    Risikovurderinguafhængig krydstjekabstract kontrolleret

    EFSA set a safe weekly intake for PFAS and named fish, fruit and eggs as main dietary sources.

    Industrial (commercial, caged) egg production has turned the egg into a carrier of dioxins, PCBs, PFAS and heavy metals.

    Understøtter studiet den konkrete påstand? Delvist · Metodisk kvalitet: høj · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    Risks from PFASs in food

    Hvordan blev studiet udført?

    EFSA risk assessment

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    Not applicable; European population

    Hvad blev der faktisk fundet?

    TWI 4.4 ng/kg bw/week. Fish meat, fruit and fruit products, and eggs and egg products contributed most to exposure. Parts of the population exceed the TWI.

    Hvor stor var den observerede effekt?

    BMDL; PBPK

    Hvad betyder resultaterne i hverdagen?

    PFAS come from many foods, eggs among them.

    Hvilke begrænsninger har studiet?

    Lower-bound vs upper-bound uncertainty

    Hvad siger det om Elawadys konkrete påstand?

    Partly supports.

    Gælder resultaterne for Tyskland og Europa?

    Directly EU.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    Does not single out industrial eggs.

    Videnskabelige detaljer →

Studier, der modsiger eller begrænser påstanden (6)

  • Dioxins in eggs near a former airbase in Vietnam

    Nghiem TX et al.. Bull Environ Contam Toxicol 2022 · PMID 35037074 · DOI 10.1007/s00128-021-03419-w
    Måle- / restkoncentrationsstudieciteret af Tayebat-arkivetabstract kontrolleret★ nøglestudie

    Some eggs, especially from free-range hens, had dioxin levels well above EU limits; the typical (median) egg was much lower.

    Industrial (commercial, caged) egg production has turned the egg into a carrier of dioxins, PCBs, PFAS and heavy metals.

    Understøtter studiet den konkrete påstand? Delvist · Metodisk kvalitet: moderat · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    What are dioxin levels in eggs and soils in Dong Nai Province, and how do raising methods and nearby pollution sources affect them?

    Hvordan blev studiet udført?

    Cross-sectional measurement of PCDD/Fs and dl-PCBs in paired egg and soil samples

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    Not stated in abstract; Chicken eggs and soils near Bien Hoa Airbase and industrial areas

    Hvad blev der faktisk fundet?

    PCDD/F 5.74-1320 (median 350) pg/g lw; dl-PCB 120-51,200 (median 1470) pg/g lw; TEQ 0.817-245 (median 10.8) pg TEQ/g lw. Higher dioxin levels in free-range than non-free-range eggs. Egg-soil TEQ correlation rho = 0.671 (p<0.05).

    Hvor stor var den observerede effekt?

    Ranges, medians; Spearman correlation

    Hvad betyder resultaterne i hverdagen?

    Hens with access to polluted soil can lay contaminated eggs.

    Hvilke begrænsninger har studiet?

    Hotspot area (former Agent Orange airbase); Sample size not in abstract; No health outcome

    Hvad siger det om Elawadys konkrete påstand?

    Supports egg contamination at hotspots; contradicts the industrial framing.

    Gælder resultaterne for Tyskland og Europa?

    Low; hotspot in Vietnam. Similar soil-egg pathway is described for Germany (A-EGG-05).

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    Cannot describe eggs sold in other countries.

    Videnskabelige detaljer →

  • Where dioxins in German eggs and meat come from

    Weber R et al.. Environ Sci Eur 2018 · PMID 30464877 · DOI 10.1186/s12302-018-0166-9
    Narrativt reviewciteret af Tayebat-arkivetabstract kontrolleret

    In Germany, contaminated soils and old PCB materials are the main sources; outdoor hens can exceed EU limits even at low soil levels.

    Industrial (commercial, caged) egg production has turned the egg into a carrier of dioxins, PCBs, PFAS and heavy metals.

    Understøtter studiet den konkrete påstand? Nej · Metodisk kvalitet: moderat · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    Which sources cause PCDD/F and PCB contamination of food of animal origin, and how should they be managed?

    Hvordan blev studiet udført?

    Narrative review summarising a German Environment Agency project on PCDD/F and PCB sources for food of animal origin

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    Not applicable; Food-producing animals (laying hens outdoors, suckler calves, beef)

    Hvad blev der faktisk fundet?

    Outdoor laying hens can exceed EU egg limits at soil PCDD/F-PCB-TEQ below 5 ng/kg dm; soil-chicken-egg pathway is probably the most sensitive route for human exposure; exceedances in free-range chicken, sheep and beef often occur without a known source. Major German sources: contaminated soils, PCBs from buildings, PCBs present at farms.

    Hvor stor var den observerede effekt?

    Not applicable

    Hvad betyder resultaterne i hverdagen?

    Free-range hens on contaminated soil are a particular risk.

    Hvilke begrænsninger har studiet?

    Narrative, not systematic; Abstract only

    Hvad siger det om Elawadys konkrete påstand?

    Contradicts the claim that industrial production is the problem.

    Gælder resultaterne for Tyskland og Europa?

    High for Germany.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    Gives no prevalence data for German eggs.

    Videnskabelige detaljer →

  • Metals in chicken and eggs near Indian copper mines

    Giri S et al.. Arch Environ Occup Health 2019 · PMID 29236582 · DOI 10.1080/19338244.2017.1407284
    Måle- / restkoncentrationsstudieciteret af Tayebat-arkivetabstract kontrolleret

    Most metal levels were below national standards; combined risk index was slightly above 1 at some sites.

    Industrial (commercial, caged) egg production has turned the egg into a carrier of dioxins, PCBs, PFAS and heavy metals.

    Understøtter studiet den konkrete påstand? Nej · Metodisk kvalitet: lav · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    What metal levels occur in local chicken and eggs around copper mines and what is the health risk?

    Hvordan blev studiet udført?

    Cross-sectional measurement of metals in locally reared chicken and eggs with hazard index calculation

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    Not stated in abstract; Locally reared chicken and eggs

    Hvad blev der faktisk fundet?

    Concentrations below Indian standards except Cu, Ni and Zn in chicken at some locations; THQ suggested no individual metal risk; HI 0.62-1.66 across locations.

    Hvor stor var den observerede effekt?

    Risk indices

    Hvad betyder resultaterne i hverdagen?

    Only relevant to mining areas.

    Hvilke begrænsninger har studiet?

    Hotspot; HI above 1 only at some locations; Abstract-only

    Hvad siger det om Elawadys konkrete påstand?

    Does not support general egg contamination.

    Gælder resultaterne for Tyskland og Europa?

    Very low.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    Cannot be generalised.

    Videnskabelige detaljer →

  • EFSA: dioxins in food (2018)

    EFSA Panel on Contaminants in the Food Chain (CONTAM) et al.. EFSA J 2018 · PMID 32625737 · DOI 10.2903/j.efsa.2018.5333
    Risikovurderinguafhængig krydstjekabstract kontrolleret

    EFSA set a stricter weekly limit for dioxins (2 pg TEQ/kg/week), which many Europeans exceed from their whole diet.

    Understøtter studiet den konkrete påstand? Uklart · Metodisk kvalitet: høj · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    Set safe intake.

    Hvordan blev studiet udført?

    Risk assessment.

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    EU data.

    Hvad blev der faktisk fundet?

    TWI 2 pg TEQ/kg bw/week.

    Hvor stor var den observerede effekt?

    Intakes 2.1-10.5 (mean).

    Hvad betyder resultaterne i hverdagen?

    Dioxins are a whole-diet issue.

    Hvad siger det om Elawadys konkrete påstand?

    Context only.

    Gælder resultaterne for Tyskland og Europa?

    High.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    That farmed fish is the main source.

    Videnskabelige detaljer →

  • Saudi market eggs: no lead, cadmium or arsenic detected

    Korish MA, Attia YA. Animals (Basel) 2020 · PMID 32331361 · DOI 10.3390/ani10040727
    Måle- / restkoncentrationsstudieuafhængig krydstjekabstract kontrolleret

    Commercial table eggs had no detectable lead, cadmium or arsenic; chicken liver had the most metals.

    Pb, Cd, As not detected in commercial table eggs (Saudi Arabia).

    Understøtter studiet den konkrete påstand? Nej · Metodisk kvalitet: lav · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    Measure metals in poultry products.

    Hvordan blev studiet udført?

    Market sampling and analysis.

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    60 eggs, 45 meat items.

    Hvad blev der faktisk fundet?

    Toxic metals not detected in eggs.

    Hvor stor var den observerede effekt?

    Not applicable.

    Hvad betyder resultaterne i hverdagen?

    Ordinary commercial eggs were not a source of toxic metals in this survey.

    Hvilke begrænsninger har studiet?

    Small sample.

    Hvad siger det om Elawadys konkrete påstand?

    Contradicts general contamination of industrial eggs.

    Gælder resultaterne for Tyskland og Europa?

    Moderate.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    It cannot represent all producers or Egypt.

    Videnskabelige detaljer →

  • Iranian supermarket eggs: lead and cadmium below safe limits

    Hoseini H et al.. Food Sci Nutr 2023 · PMID 37324917 · DOI 10.1002/fsn3.3268
    Risikovurderinguafhængig krydstjekabstract kontrolleret

    Lead and cadmium in eggs from 17 brands were below permitted levels; no health risk was estimated.

    Commercial Iranian eggs: Pb and Cd below limits; THQ < 1.

    Understøtter studiet den konkrete påstand? Nej · Metodisk kvalitet: moderat · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    Assess metal risk from eggs.

    Hvordan blev studiet udført?

    Lab analysis plus Monte Carlo risk model.

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    42 eggs, 17 brands.

    Hvad blev der faktisk fundet?

    Levels below limits; no risk.

    Hvor stor var den observerede effekt?

    THQ < 1.

    Hvad betyder resultaterne i hverdagen?

    Store-bought eggs were not a meaningful source of lead or cadmium.

    Hvilke begrænsninger har studiet?

    Small sample.

    Hvad siger det om Elawadys konkrete påstand?

    Contradicts it.

    Gælder resultaterne for Tyskland og Europa?

    Moderate.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    It cannot speak for polluted local areas.

    Videnskabelige detaljer →

Studier med blandede eller uklare resultater (2)

  • Flame retardants in backyard eggs at a Chinese e-waste site

    Huang CC et al.. Sci Total Environ 2018 · PMID 29631140 · DOI 10.1016/j.scitotenv.2018.03.386
    Måle- / restkoncentrationsstudieciteret af Tayebat-arkivetabstract kontrolleret

    Pollutant levels fell after regulation; in the worst case, exposure margins indicated possible concern.

    Industrial (commercial, caged) egg production has turned the egg into a carrier of dioxins, PCBs, PFAS and heavy metals.

    Understøtter studiet den konkrete påstand? Nej · Metodisk kvalitet: moderat · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    Did e-waste regulations reduce flame retardant levels in home-produced eggs at a former e-waste recycling site?

    Hvordan blev studiet udført?

    Repeated cross-sectional measurement of halogenated flame retardants in free-range eggs with dietary exposure assessment

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    Not stated in abstract; Free-range chicken eggs from Baihe village

    Hvad blev der faktisk fundet?

    Significant decrease of PBDEs, PBBs, HBCDs, DBDPE from 2010 to 2013/2016. Worst case BDE99 MOE adults/children 1.5 and 0.3 (2013) and 1.1 and 0.2 (2016), below 2.5 (CONTAM threshold).

    Hvor stor var den observerede effekt?

    Time comparison (p<0.05); MOE

    Hvad betyder resultaterne i hverdagen?

    Backyard hens on polluted ground can produce contaminated eggs.

    Hvilke begrænsninger har studiet?

    Single highly polluted site; Worst-case scenario (highly polluted eggs); Free-range/home eggs, not industrial

    Hvad siger det om Elawadys konkrete påstand?

    Contradicts the focus on industrial eggs.

    Gælder resultaterne for Tyskland og Europa?

    Very low transferability to EU routine supply.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    Cannot be generalised to commercial eggs elsewhere.

    Videnskabelige detaljer →

  • Pollutants in backyard eggs in Tanzania

    Polder A et al.. Sci Total Environ 2016 · PMID 26897409 · DOI 10.1016/j.scitotenv.2016.02.021
    Måle- / restkoncentrationsstudieciteret af Tayebat-arkivetabstract kontrolleret

    Some backyard eggs exceeded EU limits for dieldrin and dioxins; backyard fires were a likely source.

    Industrial (commercial, caged) egg production has turned the egg into a carrier of dioxins, PCBs, PFAS and heavy metals.

    Understøtter studiet den konkrete påstand? Nej · Metodisk kvalitet: moderat · Evidensens sikkerhed: se den samlede vurdering af påstanden

    Original publikation · Videnskabelige detaljer

    Studiet forklaret enkelt
    Hvad ville forskerne finde ud af?

    What POP levels occur in free-range backyard eggs in peri-urban Arusha and what are the health implications?

    Hvordan blev studiet udført?

    Cross-sectional measurement of POPs in pooled backyard eggs with intake and risk characterisation

    Hvor mange mennesker, dyr eller prøver blev undersøgt?

    159 eggs pooled into 28 composite samples; 159 eggs from households in five locations

    Hvad blev der faktisk fundet?

    Dieldrin 2-98,791 ng/g lw; EU dieldrin MRL exceeded in 4/28 samples; dioxins <LOQ-20 pg bio-TEQ/g lw; 4 samples (13%) exceeded the EU max level of 5 pg WHO-TEQ/g; dieldrin exceeded the PTDI in one sample.

    Hvor stor var den observerede effekt?

    Descriptive; exceedance counts

    Hvad betyder resultaterne i hverdagen?

    Burning waste near hens can contaminate eggs.

    Hvilke begrænsninger har studiet?

    Pooled samples; Backyard free-range eggs only; Single city

    Hvad siger det om Elawadys konkrete påstand?

    Does not support the claim about industrial eggs.

    Gælder resultaterne for Tyskland og Europa?

    Low.

    Hvad kan der udtrykkeligt ikke sluttes af dette studie?

    Cannot describe commercial eggs.

    Videnskabelige detaljer →

Regional kontekst

Tyskland / EU

EU maximum levels for dioxins and dl-PCBs in eggs apply (e.g., 5 pg WHO-TEQ/g fat for the sum, cited in A-EGG-04 from Regulation (EU) 1259/2011). EFSA's 2018 occurrence data (I-FSH-17) show EU 'eggs and egg products' at a mean of 1.17/1.30 and a 95th percentile of 4.38/4.39 pg TEQ/g fat (sum of PCDD/Fs and DL-PCBs), i.e. mostly well below the limit; the main dietary contributors to dioxin exposure were fish, cheese and meat. Germany's Environment Agency work (A-EGG-05) concerns soil-related contamination of outdoor hens.

Egypten

No Egyptian monitoring data on dioxins/PFAS in eggs were found. Market surveys of commercial eggs in Saudi Arabia (Pb, Cd and As not detected; I-EGG-121) and Iran (Pb and Cd below limits, no estimated risk; I-EGG-122) do not show heavy-metal problems in commercial eggs. Hotspot-type risks (waste burning, industrial soils) for backyard hens are plausible but not quantified.

Hvad gælder i mit land?

Generel videnskabelig vurdering

Overvejende falsk Forurening af æg forekommer ved enkelthændelser og i forurenede områder, ofte mere hos frilandshøns end hos burhøns; det er ikke et generelt træk ved industriæg.

Følgende områder af fødevaresikkerheden er relevante for dette udsagn:

  • Pesticider og pesticidrester
  • Veterinærlægemidler og antibiotika
  • Hormonelle vækstfremmere
  • Forurenende stoffer (tungmetaller, PFAS, PCB, dioxiner, nitrat)
  • Sygdomsfremkaldende mikroorganismer (Salmonella, Campylobacter m.fl.)
  • Dyrehold og foder
  • Kontrol, import, tilbagekaldelser, mærkning

Æg · Fjerkræ · Mejeriprodukter · Fisk og skaldyr · Rødt kød · Frugt og grøntsager

Vælg et land for at se de kontrollerede oplysninger for det.

Begrænsninger: retsregler beskriver, hvad der er tilladt, ikke hvad hver enkelt fødevare indeholder. Måledata stammer fra prøver og er kun meningsfulde sammen med deres metodeoplysninger.

Bopæls- eller købsland Sammenlign med et andet land

Referencer

  1. The Belgian PCB and dioxin incident of January-June 1999: exposure data and potential impact on health.. van Larebeke N et al.. Environ Health Perspect 2001 · PMID 11333188 · DOI 10.1289/ehp.01109265
  2. Per- and poly-fluoroalkyl substances in commercial organic eggs via fishmeal in feed.. Granby K et al.. Chemosphere 2024 · PMID 37944762 · DOI 10.1016/j.chemosphere.2023.140553
  3. Potential Health Effects of Heavy Metals and Carcinogenic Health Risk Estimation of Pb and Cd Contaminated Eggs from a Closed Gold Mine Area in Northern Thailand.. Aendo P et al.. Foods 2022 · PMID 36140919 · DOI 10.3390/foods11182791
  4. Risk to human health related to the presence of perfluoroalkyl substances in food.. EFSA CONTAM Panel. EFSA J 2020 · PMID 32994824 · DOI 10.2903/j.efsa.2020.6223
  5. PCDD/Fs and Dioxin-like PCBs in Chicken Eggs and Soils in Dong Nai Province, Southern Vietnam: Impacts of Raising Methods and Nearby Pollution Sources.. Nghiem TX et al.. Bull Environ Contam Toxicol 2022 · PMID 35037074 · DOI 10.1007/s00128-021-03419-w
  6. Reviewing the relevance of dioxin and PCB sources for food from animal origin and the need for their inventory, control and management.. Weber R et al.. Environ Sci Eur 2018 · PMID 30464877 · DOI 10.1186/s12302-018-0166-9
  7. Heavy metals in eggs and chicken and the associated human health risk assessment in the mining areas of Singhbhum copper belt, India.. Giri S et al.. Arch Environ Occup Health 2019 · PMID 29236582 · DOI 10.1080/19338244.2017.1407284
  8. Risk for animal and human health related to the presence of dioxins and dioxin-like PCBs in feed and food.. EFSA Panel on Contaminants in the Food Chain (CONTAM) et al.. EFSA J 2018 · PMID 32625737 · DOI 10.2903/j.efsa.2018.5333
  9. Evaluation of Heavy Metal Content in Feed, Litter, Meat, Meat Products, Liver, and Table Eggs of Chickens.. Korish MA, Attia YA. Animals (Basel) 2020 · PMID 32331361 · DOI 10.3390/ani10040727
  10. Risk assessment of lead and cadmium concentrations in hen's eggs using Monte Carlo simulations.. Hoseini H et al.. Food Sci Nutr 2023 · PMID 37324917 · DOI 10.1002/fsn3.3268
  11. Level changes and human dietary exposure assessment of halogenated flame retardant levels in free-range chicken eggs: A case study of a former e-waste recycling site, South China.. Huang CC et al.. Sci Total Environ 2018 · PMID 29631140 · DOI 10.1016/j.scitotenv.2018.03.386
  12. Dioxins, PCBs, chlorinated pesticides and brominated flame retardants in free-range chicken eggs from peri-urban areas in Arusha, Tanzania: Levels and implications for human health.. Polder A et al.. Sci Total Environ 2016 · PMID 26897409 · DOI 10.1016/j.scitotenv.2016.02.021

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