Kumari, Anjali and Sinha, Alok and Singh, D.B. Source apportionment of heavy metals via positive matrix factorization and probabilistic health risk assessment in chromite mine soils, Sukinda, India. Journal of Environmental Chemical Engineering, 13 (5).
Full text not available from this repository.Abstract
his study systematically delineates the sources of toxic heavy metals and quantifies site-specific human health risks in Sukinda, India, through integrated application of multivariate statistical techniques, positive matrix factorization (PMF), and Monte Carlo simulation (MCS) based risk assessment. The distribution pattern of heavy metals i.e., Fe>Cr>Ni>Mn>Co>Zn>Cu>Cd, indicates a predominantly geogenic origin influenced by ultramafic sources such as serpentine, nickeliferous-limonite, and chromite ore, while the enrichment of Cu, Zn, and Cd is primarily associated with anthropogenic activities, including agriculture and vehicular emissions. The Cr(VI) concentration ranges from 7 to 176 mg/kg, resulting from mining activities and Mn-oxide-facilitated geogenic oxidation of Cr(III) under near-neutral pH. The spatial distribution map shows high chromium was mainly concentrated in the mining areas, while elevated copper and cadmium enrichment near agricultural and roadside areas. The pollution index highlights severe pollution of Cr (12) and Cr(VI) (10) in mining areas, with significant enrichment of Mn (12), Co (10), and Zn (12) in road and riverside areas. Ecological risk index varies from 2 to 199, displaying high risk related to Cr and Cd. PMF attributes the sources of contamination to geogenic origin with mixed inputs (44 %), mining activities and Cr (VI) origins (30 %), and agricultural/vehicular emissions (26 %). MCS reveal cancer risks up to 4.52E −03 (adults) and 2.10E-02 (children), with hazard indices exceeding safe limits by 6 and 19-fold, respectively with trends: Mine > River > Road > Agriculture. This combined research was essential for identifying contamination sources, evaluating health risks, and guiding effective pollution management strategies in mining-impacted areas.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Chromite miningSpatial distributionEcological risk indexFactor analysisRisk assessment |
| Subjects: | Enviornmental Management |
| Divisions: | UNSPECIFIED |
| Depositing User: | Mr. B. R. Panduranga |
| Date Deposited: | 10 Feb 2026 04:43 |
| Last Modified: | 10 Feb 2026 04:43 |
| URI: | https://cimfr.csircentral.net/id/eprint/2935 |
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