BfR 2009 — Lead and cadmium do not belong in toys (BfR Opinion No. 048/2009)

This Bundesinstitut für Risikobewertung (BfR, German Federal Institute for Risk Assessment) formal Opinion, issued as BfR Opinion No. 048/2009 on 1 June 2009, is the agency’s health risk assessment of children’s exposure to lead and cadmium in toys in the context of the then-new European Toy Safety Directive (TSD) 2009/48/EC. The Opinion synthesises ATSDR, EFSA, IARC, JECFA, WHO, DFG, and German HBM Commission evaluations and concludes that (i) because no scientific safe-effect threshold can be established for lead’s neurotoxic and endocrine effects in children, the ALARA principle (as low as reasonably achievable) should govern lead in toys and other consumer products and the prior, tighter migration limit values of Directive 88/378/EEC should not be loosened; (ii) the cadmium migration limits in TSD 2009/48/EC, derived from the older JECFA 2003 PTWI of 7 µg Cd/kg bw/week, must be lowered to align with EFSA 2009’s revised TWI of 2.5 µg Cd/kg bw/week; and (iii) because children’s dietary cadmium intake already exceeds the new EFSA TWI by 100% on a regular basis, toys should contribute at most 5% of the EFSA TWI across all three TSD toy-material categories combined (dry/brittle, liquid/sticky, scraped-off). The Opinion does not report any primary contamination measurements; it is a regulatory-opinion derivation of recommended migration-limit positions from upstream toxicological reference values.

Key numbers

Tolerable-intake reference values reviewed

• JECFA PTWI for Pb (1986, reaffirmed 2002): 25 µg/kg bw/week (≈3.5 µg/kg bw/day), derived under the assumption of a safe-effect threshold. The Opinion notes that EFSA was at the time re-evaluating lead and that WHO/JECFA would likely also re-evaluate this PTWI because the safe-threshold assumption underlying it no longer holds (p. 2, 3).
• JECFA PTWI for Cd (2003): 7 µg/kg bw/week (p. 6).
• EFSA TWI for Cd (2009): 2.5 µg/kg bw/week (≈0.35 µg/kg bw/day). Based on urinary β2-microglobulin (B2M) modelling; critical urinary Cd of 1 µg per g creatinine identified as correlate of tubular kidney damage. EFSA explicitly notes the revised TWI does not protect all population groups equally — children’s cadmium intake through foodstuffs alone regularly exceeds the new TWI by 100% (p. 6).

Lead in children: dietary intake, blood lead, and exposure pathways

• EU adult alimentary lead intake (SCOOP 2004): median 0.8 µg/kg bw/day (≈25% of the JECFA PTWI) (p. 4).
• EU children’s alimentary lead intake (SCOOP 2004): 1.3 µg/kg bw/day for 4-6 year-olds; 0.83 µg/kg bw/day for 10-12 year-olds; latter figure constitutes 35% of the PTWI (p. 4).
• Alternative dietary-intake estimates (JECFA 2006): 1-4 µg/kg bw/week (≈0.1-0.6 µg/kg bw/day) for children between 0.6 and 30 µg/kg bw/day (≈0.1-4.3 µg/kg bw/day) (p. 4).
• Tap-water lead intake in German children (Schulz et al. 2008, German Environmental Survey for Children): median 0.75 µg/day, maximum up to 1,000 µg/day (p. 4).
• Tap-water lead concentration (Lommel et al. 2002): mean 26 µg/L in some German surveys (p. 4).
• Blood lead in German children aged 3-14 years (Becker 2007 / HBM Commission 2009): mean 18.2 µg/L, maximum 100 µg/L, with a 35 µg/L reference value for the 3-14 year cohort; 5% of children exceed 35 µg/L. The Opinion notes these levels are “certainly in concentration ranges which have been known to produce adverse effects” (p. 5).
• Threshold of biological effect: “Today it is an accepted fact that even low dosages, i.e. of lead concentrations < 100 µg/L in blood, impair the intellectual development of children considerably” (citing ATSDR 2007, Chen 2007, Lanphear et al. 2005, Schnaas 2006). Hyperkinetic-syndrome risk in children 4-15 years is higher for blood Pb >20 µg/L than for blood Pb <10 µg/L (citing Braun et al. 2006, HBM 2009). At blood Pb <100 µg/L, adverse effects on sexual maturity in girls (delayed first menstruation, pubic hair growth, breast development) have been observed (Selevan et al. 2003, Wu et al. 2003) (p. 3).
• Lead intestinal absorption asymmetry: “For children it is known that the resorption of lead from the intestines is higher than for adults by a factor of 5” (citing ATSDR 2007). Resorption rate ≈50% in children vs ≈10% in adults (p. 2, 5).
• HBM Commission position (2009): the Commission deferred setting human biomonitoring reference values for lead in blood for children, women, and men because “the definition of an effect threshold concerning blood lead levels is arbitrary and not justifiable” (HBM Commission 2009, p. 3, German original quoted in footnote).

Lead in toys: TSD 2009/48/EC migration limits and per-day exposure

• Directive 88/378/EEC (the TSD predecessor): bioavailability of lead ingested through toys limited to 0.7 µg/day (p. 4).
• Directive 2009/48/EC (new TSD): migration limits for Pb in three toy-material categories (dry/brittle/powder-like/pliable, liquid/sticky, scraped-off). Maximum permitted daily lead intake of 1.3 µg/day per material category; for a child playing with all three material types on the same day the maximum total permitted oral Pb intake from toys is 3.9 µg/day (p. 4).
• Per-kg-bw scaling under TSD assumptions (child body weight 7.5 kg): 3.9 µg/day = ≈0.5 µg/kg bw/day permitted oral Pb intake from toys, equivalent to about 50% of the estimated alimentary lead intake of children (p. 2, 4).
• The migration-limit derivation: values were back-calculated from the WHO/JECFA PTWI of 25 µg/kg bw/week (assumed safe-threshold). BfR position: because the safe-threshold assumption no longer holds, the PTWI cannot serve as a reliable basis for risk assessment of lead exposure today; ALARA must therefore apply to toys (p. 4-5).

Cadmium in children: dietary intake, exposure pathways, classification

• Cd intestinal resorption: documented at an average of 5% of oral intake, varying 1-20% with food composition and nutritional status (WHO 1992). Accumulation potential high; biological half-life in kidneys 10-30 years (p. 6).
• EFSA 2009 cadmium intake estimates:
  • Adults: 1.9-3.9 µg/kg bw/week (median 2.3 µg/kg bw/week) (p. 7).
  • Children 1-12 years: 0.49-7.9 µg/kg bw/week (median 2.71 µg/kg bw/week); “intake is higher for younger children” (p. 7).
  • Young children (1.5-4.5 years): cadmium intake exceeds adult intake by 165% (EFSA 2009) (p. 7).
• WHO/JECFA estimate for foodstuffs (cited 2.8-4.2 µg/kg bw/week or 24-36 µg/day): broadly consistent with the EFSA range above (p. 7).
• U.S. Total Diet Study (ATSDR 1999) average dietary Cd: 30 µg/day (p. 7).
• IARC classification: Group 1 human carcinogen (IARC 1993) (p. 6).
• DFG (German Research Foundation) Senate Commission classification: Category 2 carcinogen (substances to be considered carcinogenic for humans), DFG 2003 (p. 6).
• In vitro endocrine activity: cadmium acts as an oestrogen-response inducer in vitro and is classified as an endocrine-modulating substance (Hofer et al. 2009). Cadmium and lead may also act via epigenetic mechanisms (Baccarelli & Bollati 2009) (p. 6).

Cadmium in toys: TSD 2009/48/EC migration limits and BfR’s per-material-category position

• Directive 2009/48/EC (new TSD) Cd migration limits: derived from the old JECFA 2003 PTWI of 7 µg Cd/kg bw/week. Maximum permitted daily oral Cd intake 0.2 µg/day per toy-material category (dry, liquid, scraped-off). For a child playing with all three material types on the same day, total permitted oral Cd intake from toys = 0.6 µg/day (p. 7).
• Per-kg-bw scaling (child body weight 7.5 kg, TSD assumption): 0.6 µg/day = 0.56 µg/kg bw/week (p. 7).
• Percentage of EFSA 2009 TWI permitted via toys under TSD: 0.56 / 2.5 = ≈20% of the EFSA TWI of 2.5 µg/kg bw/week (p. 2, 7).
• BfR position on cadmium in toys: because children’s dietary Cd intake alone already exceeds the EFSA TWI by 100% on a regular basis, toys should contribute at most 5% of the EFSA TWI across all three TSD material categories combined. The migration limits for cadmium in toys should be promptly adjusted to the EFSA TWI value of 2.5 µg/kg bw/week (p. 2, 7-8, 9).

Methods (brief)

This is a regulatory-opinion document. No primary analytical work was carried out and no LOD/LOQ is applicable. BfR’s risk-assessment workflow: (i) compile authoritative tolerable-intake reference values for Pb and Cd from ATSDR (1999, 2007), EFSA (2004, 2009), IARC (1993, 2004, 2006), JECFA (1986, 2002, 2003, 2006), and WHO (1992, 1995, 2000, 2007); (ii) compile children’s-specific exposure data — dietary, drinking-water, dust/soil, mouthing of consumer products — from SCOOP (2004), the German Environmental Survey for Children KUS 2003/06 (Schulz et al. 2008; Becker 2007), the HBM Commission (2009), and UBA (2007); (iii) derive the per-pathway and per-material-category exposure burden that would result under the new TSD 2009/48/EC migration limits, expressed both as µg/day and as a percentage of the operative tolerable-intake reference; (iv) compare to the share already consumed by dietary intake; (v) issue an Opinion. The document is structured in three sections: (1) Subject of the Assessment, (2) Results (the agency’s findings statement), and (3) Reasons (the underlying toxicology, exposure, and risk-characterisation evidence for lead and cadmium separately). A “Scope for action / measures” closing section (3.3) records BfR’s specific policy recommendations to the European Commission.

Implications

• Regulatory baseline (Pb in toys, EU). This Opinion is one of the formal national-agency contributions that shaped the EU’s downstream review of TSD 2009/48/EC migration limits for lead and cadmium. BfR’s position — that the prior 88/378/EEC bioavailability limit (0.7 µg Pb/day) should not be loosened, and that the ALARA principle should apply to lead in toys — is the operative German-agency framing on this question as expressed in this Opinion.

• Regulatory baseline (Cd in toys, EU). BfR’s recommended cap — toys to contribute at most 5% of the EFSA 2009 TWI of 2.5 µg Cd/kg bw/week (≈0.0019 µg/kg bw/day, or ≈14 ng/day for a 7.5 kg child summed across all three TSD material categories) — is substantially tighter than the TSD 2009/48/EC values in force at the time of this Opinion (≈20% of the older JECFA PTWI). This is the agency position the EU’s subsequent TSD migration-limit amendment process for Cd had to address.

• HMTc audit implications. For HMTc certification work on children’s-product categories that include toys (and on mouthed sub-categories such as pacifiers and teething aids), this Opinion is the German federal-agency anchor demonstrating two things relevant to threshold-setting governance: (i) the agency-level position that no safe-effect threshold for lead in children can be defended scientifically and that the ALARA principle is the operative regulatory principle (consistent with the wiki’s Part 2 ratcheting frame); (ii) the agency-level position that dietary cadmium intake in young children already exceeds the EFSA TWI on a regular basis, meaning the entire non-food exposure budget (including toys, packaging, drinking water, dust) must be tightened relative to the toy-isolated TSD migration limits to avoid systemic over-exposure. HMTc threshold-setting for pacifiers/teething-aids/toys-painted/toys-substrate-materials categories can cite this Opinion as the regulatory-alignment anchor for either of these positions.

• App. Not directly relevant to ingredient contamination_profile data because no food-matrix occurrence values are reported. Relevant to a future toys/children’s-product screening surface that explains the regulatory logic behind Pb/Cd migration-limit values to consumers and brand-QA users.

• Courses. Worked example for the regulatory-history module of (i) how a national regulatory agency derives its position on a forthcoming EU directive from upstream tolerable-intake reference values and downstream exposure-pathway data; (ii) how the ALARA principle is invoked in the absence of a defensible safe-effect threshold; (iii) how a regulator quantifies the cumulative-exposure consequence of a permissive per-pathway limit (here, the demonstration that the TSD-permissive 3.9 µg Pb/day from toys is ≈50% of the typical alimentary Pb intake of children, an immediately interpretable framing for non-toxicologist audiences). Also a primary-source illustration of the regulatory tension between feasibility-driven migration limits and the agency’s preferred ALARA position — directly relevant to the wiki’s Part 19 rationale-tag vocabulary (feasibility-driven vs regulatory-alignment vs precautionary).

Wiki pages this source may touch

• lead
• cadmium
• toys-painted
• toys-substrate-materials
• pacifiers-and-sucking-teething-aids
• efsa-cadmium-twi
• jecfa-lead-ptwi-withdrawn

Verification notes

• Source identification. Bundesinstitut für Risikobewertung, “Lead and cadmium do not belong in toys,” BfR Opinion No. 048/2009, 1 June 2009. Eleven-page English-language Opinion. No DOI (BfR Opinions are agency publications, not journal articles). The Opinion is signed in the institutional voice (“BfR”) on the title page and throughout; no individual authors are credited.
• Author attribution. No individual staff are credited on the title page or in the body. Authors field uses the institutional author “Bundesinstitut für Risikobewertung (BfR)” rather than individual staff because the Opinion is an agency document issued in the institutional voice.
• Source-tier rationale. evidence_tier: A: per Part 13, A-tier covers government reports and authoritative meta-analyses. BfR is the German federal scientific risk-assessment agency under the Federal Ministry of Food and Agriculture; its formally-numbered Opinions are public regulatory determinations. Matches the A-tier handling of the SCHEER 2017 toys-aluminium opinion (scheer2017-aluminium-tolerable-intake-toys) and the CPSC 1997 toys-Pb/Cd staff report (cpsc1997-pvc-children-products).
• Source-type rationale. source_type: regulatory: matches the existing handling of national-agency Opinions and staff reports in the corpus. The Opinion is the agency’s formal scientific advice to the European Commission regarding the migration-limit values of TSD 2009/48/EC and an explicit policy recommendation to lower those values for cadmium and apply ALARA to lead.
• License rationale. public-domain: BfR public Opinions are German federal agency publications and are made available without licensing restriction at the agency’s discretion.
• Frontmatter products: field. Three slugs selected from the 2026-05-18 taxonomy snapshot that best match the Opinion’s scope:
  • toys-painted — paints and varnishes on toys are explicitly identified as the primary release pathway in Section 2 Results (“paints and varnishes used for toys can also contain these heavy metals such products constitute an additional possible source of exposure to children”, p. 1);
  • toys-substrate-materials — substrate materials of toys releasing Pb/Cd through dry/brittle/pliable, liquid/sticky, and scraped-off pathways are the three TSD material categories the Opinion analyses;
  • pacifiers-and-sucking-teething-aids — Section 3.2.2 explicitly addresses “Toy parts small enough to be swallowed constitute a relevant child-specific source of exposure. Stomach acids can release cadmium contained in these parts” (p. 7); this is the mouthing/swallowing pathway central to pacifiers and teething aids.
  • The Opinion is broadly about all toys covered by TSD 2009/48/EC, not a specific toy form. Per the Phase 1 broad-scope rule, slugs are not over-narrowed to specific sub-categories of toys (toys-balls, toys-rattles, toys-squeeze, etc.) that the Opinion does not separately analyse.
• Frontmatter ingredients: [] is correct — the Opinion is a children’s-article consumer-product risk assessment; no food ingredients are involved. Dietary intake of Pb and Cd is referenced as a comparison baseline (alimentary intake against which the toy contribution is measured), but no specific food commodity is in scope.
• Frontmatter matrices: [] is correct — no primary measurements are reported in any food or biological matrix. The Opinion synthesises external dietary-intake and blood-Pb data from SCOOP, EFSA, JECFA, HBM Commission, and the German Environmental Survey, but reports no new matrix measurements. Matches the matrices-empty handling of the analogous toy-related sources cpsc1997-pvc-children-products and cephed2013-heavy-metals-childrens-toys-nepal.
• Frontmatter metals: [Pb, Cd] is correct — the Opinion addresses lead and cadmium only. No speciation question arises: the Opinion reports dietary, drinking-water, and blood-lead intake/concentration values in total elemental Pb and total elemental Cd, consistent with how the upstream reference values (JECFA PTWI, EFSA TWI) are expressed.
• Brand-firewall (Part 12, strict reading locked 2026-05-17). Not applicable. The Opinion names no brands and discusses no brand-attributed contamination data; it is a category-level risk assessment of toys-as-a-product-class under TSD 2009/48/EC. No brand-by-brand ranking, percentile comparison, or competitive framing arises.
• Wiki/HMTc firewall (Part 2). The Implications section reports BfR’s policy recommendations (ALARA for Pb in toys; toys to contribute at most 5% of EFSA TWI for Cd) as the Opinion’s findings, not as wiki endorsements. The Opinion’s recommendations are the German federal agency’s regulatory position, and the wiki reports them as such; no HMTc threshold is endorsed or critiqued, and no synthesis claim (“the literature consensus is…”) is added on the wiki side. The gap between BfR’s preferred ALARA framing for Pb and the operative TSD 2009/48/EC migration values is stated as the Opinion itself states it.
• Speciation flag. N/A for Pb and Cd as referenced here — the Opinion deals in total elemental Pb and total elemental Cd, consistent with the JECFA PTWI / EFSA TWI reference-value vocabulary.
• Regulation-page mapping. The Opinion references three regulatory/health-guideline anchors: (1) EU Toy Safety Directive 2009/48/EC (TSD); (2) the predecessor Directive 88/378/EEC; (3) the EFSA 2009 cadmium TWI of 2.5 µg/kg bw/week. Of these, only the EFSA 2009 cadmium TWI is currently in wiki/regulations/ as a dedicated slug (efsa-cadmium-twi). The Pb anchor cited (WHO/JECFA PTWI of 25 µg/kg bw/week) is captured at jecfa-lead-ptwi-withdrawn in the current regulations taxonomy. TSD 2009/48/EC and Directive 88/378/EEC do not yet have dedicated regulation pages and are flagged here for future Part 10 regulation-page authoring; not created speculatively from this single source.
• Date and unit conventions. All values reported in the Opinion’s native units: µg/kg bw/week (for PTWI/TWI), µg/kg bw/day (for daily reference doses), µg/day (for permitted oral intake from toys), µg/L (for blood Pb and drinking-water Pb), and ppm/% (for migration limit values where they appear). The TSD scaling assumption (child body weight 7.5 kg) is preserved where the Opinion uses it.
• Folder context vs paper scope. The PDF lives under _extracted_infantcontact_02_Teethers_Pacifiers/02_Teethers_Pacifiers/ in the Kimi corruption-issue raw tree, but the Opinion itself does not separately analyse teethers or pacifiers; it addresses all toys covered by TSD 2009/48/EC. The folder name reflects the Kimi-agent’s batch-organization scheme, not the paper’s specific content. The pacifiers-and-sucking-teething-aids product slug is included because mouthing/swallowing of small toy parts is one of the three release pathways the Opinion explicitly analyses, not because the folder is named “Teethers/Pacifiers.”
• Near-duplicates. None identified. The Opinion is a stand-alone BfR document; no companion BfR Communication or Statement appears to be paired with it in the corpus at this writing.
• Raw integrity. raw_sha256 = aaf0493e6b7a29fc066e1236c51c7cbfa03fbb6dc134379c8caffc5123037e69 verified by shasum -a 256 against the file at raw_path. Matches the may21-kimi-novelty-2026-05-31.csv novelty-check record for the MFK_03-2009-lead-and-cadmium-do-not-belong-in-toys handle (status: no_doi_needs_claude, unprocessed).
• Audit subagent findings applied (2026-06-01). Fresh-context Agent subagent audit returned verdict REVISE with two findings, both verified against the PDF and applied:
  • Check 1 ⚠️ “exceeds adult median by 165%” — PDF p. 7 reads “Young children (1.5 to 4.5 years) thus exceed the cadmium intake of adults by 165% (EFSA 2009)”; the word “median” was a wiki-side interpolation (the source separately reports adult median 2.3 µg/kg bw/week but does not attribute the 165% figure to the median specifically). Reframed to “exceeds adult intake by 165%.”
  • Check 5 ⚠️ “BfR position prefigured the EU’s eventual tightening…EFSA 2010 lead Contam Panel BMDL01 ≈0.5 µg/kg bw/day” — this was a cross-source synthesis sentence linking the BfR 2009 Opinion to the downstream EFSA 2010 lead Opinion (not cited in this BfR Opinion). Per Part 2 wiki/HMTc firewall and per the audit-prompt Check 5 explicit failure mode (“synthesis claims that compare this paper to other literature”), the forward-synthesis sentence was removed; the bullet now reports BfR’s 2009 position as expressed in this Opinion only.
  • Check 5 also flagged the “HMTc audit implications” bullet as ⚠️ borderline because it names HMTc product slugs and the rationale-tag vocabulary. Not changed: the bullet describes what the source contributes to threshold work (“can cite this Opinion as the regulatory-alignment anchor”) without proposing any threshold value, which is the allowed side of the Part 2 boundary per audit-prompt.md; matches the established precedent of cpsc1997-pvc-children-products (HMTc audit implications bullet using the same regulatory-alignment rationale-tag framing passed audit).
  • Checks 1 (remaining 30+ numerical values), 2 (slug vocabulary), 3 (speciation and methods), 4 (Part 12 brand firewall) all returned ✅ clean.

Page history

The five most recent substantive edits to this page. The full version history lives in git; when DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.