Quinoa

Quinoa is a pseudocereal indigenous to the Andean highlands of Peru, Bolivia, and Ecuador. It is botanically distinct from true cereals (Poaceae) but functions as a grain in human diets and is regulated alongside cereals in most jurisdictions. The heavy-metal contamination signal for quinoa is dominated by cadmium, which it accumulates from Andean soils whose geochemistry is shaped by the same mining-belt minerology that drives Cd in regional cacao (see cocoa for the parallel pattern). Lead and arsenic are secondary concerns, primarily in samples sourced from mining-impacted watersheds (Moquegua, Huancavelica, certain altiplano basins).

The growing global popularity of quinoa as a gluten-free pseudocereal in infant and child foods, energy bars, and breakfast products makes its contamination profile increasingly relevant to certification: a product that substitutes quinoa for rice to lower iAs may simultaneously elevate Cd if the quinoa is sourced from a Cd-rich region. The Peru/Bolivia regional variance is large enough that origin-specific sourcing matters for HMTc Path A threshold setting.

Routing

Direct evidence for quinoa lands here. Andean-wide multi-crop surveys also touch cocoa and the cereals umbrella. Product-level routing will flow through breakfast cereal and infant cereal pages once Phase 2 ingest connects quinoa-bearing products to this commodity.

Contamination Profile State

All ten contamination_profile sub-blocks are pending. Cd will be the first synthesis target given six contributing source pages already in scope; geographic variance (Peru vs Bolivia vs Ecuador, valley vs altiplano, mining-proximate vs non-proximate) is the principal organizing axis for that synthesis.

Sources

Auto-generated from source-page frontmatter. The “Used on this page for” column is populated by the orchestrator’s POPULATE-SOURCE-LEGEND action; pending entries appear as *[awaiting synthesis]*.

#	Citation	Year	Type	Used on this page for
1	Ccopi et al. 2026. Bioaccumulation of heavy metals in high Andean crops of the Peruvian Andes: comparative evaluation between irrigated and dry systems, Journal of Agriculture and Food Research	2026	Peer-reviewed	Measured Cd, Pb, tAs, Cr, and Ni in quinoa grain and soil from Mantaro Valley, Peru (n=218); irrigated vs rainfed comparison with bioaccumulation factor data
2	Gül et al. 2024. Effects of cadmium and lead stress on quinoa (Chenopodium quinoa Willd.) plant growth and antioxidant enzyme activities, Turkish Journal of Nature and Science	2024	Peer-reviewed	Greenhouse pot study on Cd and Pb phytotoxicity and tissue accumulation in quinoa under spiked-soil conditions; phytotoxicity framing rather than ambient occurrence
3	Bedoya-Perales et al. 2023. Dataset of metals and metalloids in food crops and soils sampled across the mining region of Moquegua in Peru, Scientific Data	2023	Peer-reviewed	Open-access occurrence dataset for tAs, Cd, Pb, Cu, and Zn in food crops and soils from Moquegua mining region, Peru (341 sites); includes quinoa samples
4	Rosales-Huamani et al. 2023. Determination of Potentially Toxic Elements in Quinoa Crops Located in the Huacaybamba-Huanuco-Peru Area, International Journal of Membrane Science and Technology	2023	Peer-reviewed	Measured tAs, Pb, Cd, Cu, and Zn in 50 agricultural soil samples from a quinoa-producing area in Huancaybamba, Peru; 100% of Cd samples exceeded Peruvian soil quality standards
5	Román-Ochoa et al. 2021. Heavy metal contamination and health risk assessment in grains and grain-based processed food in Arequipa region of Peru, Chemosphere	2021	Peer-reviewed	Measured tAs, Cd, Sn, Pb, and tHg in quinoa and rice grains plus processed grain products from Arequipa, Peru (n=53); Pb dramatically elevated in processed vs raw grain
6	CR 2014. Analysis of Arsenic in Rice and Other Grains, Consumer Reports Food Safety and Sustainability Center	2014	Industry	697-sample iAs/tAs dataset covering rice types and alternative grains; quinoa showed significantly lower inorganic arsenic than rice of any type tested