Overview
This integrative study synthesizes secondary data on cadmium in agricultural soils of West Java and Central Java, computing contamination and ecological-risk indices and relating soil Cd to food-security risk. It is upstream soil-burden and exposure context for cadmium; it reports no primary retail food occurrence and is context-only for Heavy Metal Index purposes. It is exactly the kind of soil-contamination-assessment evidence the routing layer connects to crops grown on affected ground.
Key numbers
- Standardized soil Cd concentrations (mg/kg dry weight, from AAS and ICP-OES) synthesized for 2022-2024; Contamination Factor (CF) and Ecological Risk factor (Er) computed via the Hakanson (1980) model.
- Bandung Regency (West Java): highest soil Cd at 6.6 mg/kg with extreme ecological risk (Er = 990), linked to textile and electroplating industry and wastewater discharge.
- Brebes-Demak-Pati (Central Java): moderate-to-high contamination at 2.2 mg/kg (Er = 330), attributed to prolonged fertilizer and pesticide use.
- Despite soil contamination, Cd in rice from Semarang was reported below the detection limit — a soil-burden-does-not-equal-food-concentration illustration.
Methods (brief)
Quantitative descriptive-comparative synthesis of secondary data from indexed scientific publications and Statistics Indonesia (BPS); CF and Er indices and correlation analysis between soil Cd and the percentage of polluted villages.
Implications
Certification: Contributes nothing to HMT&C threshold pools (no primary food occurrence). Upstream soil-burden/exposure context for cadmium in an important growing region; route as exposure/regulatory context to Soil-to-plant transfer of heavy metals and Cadmium.
Courses: A clean teaching case that high soil Cd (and ecological risk) need not translate into elevated grain Cd (Semarang rice below detection), reinforcing the soil-is-not-food rule.
App: No contamination_profile blocks are touched.
Microbiome: Not a focus of this source.
Wiki pages this source may touch
Verification notes
- Evidence tier C: secondary-data descriptive synthesis, not primary measurement; regional soil values are reproduced from cited sources and should be re-verified before any downstream use.
- Page grounded in the published abstract and bibliographic metadata; values preserved as printed.
metals: [Cd];ingredients: []/products: []correct — soil/exposure context, not retail food occurrence.- This source is a concrete example of the literature the discovery filter previously excluded (“soil contamination assessment”); the 2026-06-18 scope fix restores its inclusion.
- Part 2 direction-of-edit check: adds upstream exposure context; neutral to HMT&C thresholds, moves toward the literature.
Update history
This page has no substantive edit history yet. Future revisions will be recorded here once the change lands in git.