Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Journal of Degraded and Mining Lands Management
Peregrino, Fern Rose A.
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pollution assessment and mercury leaching using environmentally friendly solvents from small-scale gold mine wastes in Camarines Norte Aglibot, Jan Melchor B.; Tanciongco, Alexandria M.; Quierrez, Rico Neil M.; Gervasio, John Henry C.; Rasay, Anie Felicia P.; Acampado, Jesica B.; Peregrino, Fern Rose A.; Estoque, Jessa Mae V.; Samaniego, Jessie O.
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.8139

Abstract

Potentially toxic elements (PTEs) have become a significant global concern due to their detrimental effects on both ecological and public health. Monitoring these elements is crucial in areas suspected of having high concentrations. In Camarines Norte, small-scale gold mining (SSGM) activities have been linked to elevated mercury levels in soils and sediments, as it is commonly used in the gold extraction process. In this study, six (6) SSGM wastes from Camarines Norte were collected, analyzed, characterized, and assessed for pollution by eight (8) PTEs: arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), zinc (Zn), and mercury (Hg). Analytical techniques such as energy dispersive x-ray fluorescence (EDXRF), x-ray diffraction (XRD), inductively coupled plasma – mass spectrometry (ICP-MS), and direct mercury analyzer (DMA) were utilized. Analysis shows quartz (SiO?) as the primary mineral among all samples, with some also containing albite, biotite, kaolinite, microcline, and sphalerite. Pollution was assessed using enrichment factor (EF) and index of geoaccumulation (Igeo), which showed that the SSGM waste samples were extremely enriched and contaminated with As, Cd, Cu, Hg, Pb, and Zn. Gold concentrations were also measured, revealing high levels of enrichment in the samples. Furthermore, one of the SSGM waste samples underwent Hg leaching using environmentally friendly solvents, including deep eutectic solvents (DES). The reduced mercury concentrations after leaching demonstrate the potential application of DES for mercury remediation.
Pollution assessment and mercury speciation of small-scale gold mine (SSGM) tailings, sediments, and ore from Camarines Norte, Philippines Dela Cruz, Kyla Mae T.; Madayag, Juniela Anne T.; Arpa, Maria Carmencita B.; Samaniego, Jessie O.; Peregrino, Fern Rose A.; Quierrez, Rico Neil M.; Tanciongco, Alexandria M.
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.8023

Abstract

The municipalities of Jose Panganiban and Paracale, Camarines Norte, are notable “mining districts,” where small-scale miners use mercury (Hg) to extract gold, despite its being banned under Republic Act 7076 of the People’s Small Scale Mining Act of 1991. In this study, 17 sediment samples from coastal/marine, river, and mine tailings were collected and analyzed for the following: (1) pollution assessment of potentially toxic elements (PTE), (2) total Hg concentration on particle size distribution, and (3) mercury speciation. The results showed that mercury (Hg) and arsenic (As) were the most significant pollutants and contaminants. Enrichment levels using Enrichment Factor (EF) ranked as Hg > Cr > Zn > Ni > As > Fe > Cu > V > Mn > Sr > Ca. Geoaccumulation Index (Igeo) and Potential Ecological Risk Factor (Er) confirmed that As and Hg posed the highest environmental threats, with Hg likely coming from mining and As naturally occurring but disturbed by mining activities. The mercury concentration patterns varied by location, where river sediments concentrated Hg in medium silt, coastal sediments had scattered Hg levels due to more extended transport, and mine tailings had irregular Hg distribution since they were the source. Moreover, the mercury speciation showed a consistent result of Hg (I) among all the samples and a remarkable peak for Hg0 with the tailings samples, suggesting incomplete oxidation from mining.
Co-Authors Acampado, Jesica B. Aglibot, Jan Melchor B. Arpa, Maria Carmencita B. Dela Cruz, Kyla Mae T. Estoque, Jessa Mae V. Gervasio, John Henry C. Madayag, Juniela Anne T. Quierrez, Rico Neil M. Rasay, Anie Felicia P. Samaniego, Jessie O. Tanciongco, Alexandria M.