This Costa Rican official-gazette source publishes Decreto Ejecutivo No. 34687-MAG, RTCR 409:2008, which sets maximum microbiological, veterinary-drug-residue, and contaminant limits for fishery and aquaculture products and subproducts intended for human consumption.
The routeable heavy-metal rows are in section 3, “Contaminantes quimicos.” Section 3.1 lists mercury limits for fishery products, section 3.2 lists cadmium limits, section 3.3 lists lead limits, and section 3.4 lists a tin limit for canned fishery products. The source heading says mercury without a methylmercury qualifier, so HMI records those rows as tHg rather than MeHg.
Values are recorded in data/evidence/regulatory_limits.csv in ug/kg, converted from the source’s mg/kg limits by multiplying by 1000. The source table does not state a wet-weight or dry-weight qualifier, so the structured rows preserve the legal basis as product placed on the market and note the missing wet/dry qualifier.
Update history
The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and 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.
| Commit | Date | Change | Description |
|---|---|---|---|
| a8052bb | 2026-08-09 | minor | Narrative text revised |