Groundwater Quality, Health Risk Assessment, and Source Distribution of Heavy Metals Contamination around Chromite Mines: Application of GIS, Sustainable Groundwater Management, Geostatistics, PCAMLR, and PMF Receptor Model
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Published:2023-01-24
Issue:3
Volume:20
Page:2113
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ISSN:1660-4601
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Container-title:International Journal of Environmental Research and Public Health
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language:en
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Short-container-title:IJERPH
Author:
Rashid Abdur12ORCID, Ayub Muhammad3, Ullah Zahid1, Ali Asmat1ORCID, Sardar Tariq4ORCID, Iqbal Javed1, Gao Xubo1ORCID, Bundschuh Jochen5, Li Chengcheng1, Khattak Seema Anjum2, Ali Liaqat2, El-Serehy Hamed A.6ORCID, Kaushik Prashant7ORCID, Khan Sardar8
Affiliation:
1. State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Studies, China University of Geosciences, Wuhan 430074, China 2. National Centre of Excellence in Geology, University of Peshawar, Peshawar 25130, Pakistan 3. Department of Botany, Hazara University, Dhodial P.O. Box 21120, Pakistan 4. Department of Environmental Sciences, Kohat University of Science and Technology, Kohat 26000, Pakistan 5. School of Civil Engineering and Surveying, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, QLD 4350, Australia 6. Department of Zoology, College of Science, King Saud University, Riyadh l1451, Saudi Arabia 7. Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, 46022 Valencia, Spain 8. Department of Environmental Sciences, University of Peshawar, Peshawar P.O. Box 25120, Pakistan
Abstract
Groundwater contamination by heavy metals (HMs) released by weathering and mineral dissolution of granite, gneisses, ultramafic, and basaltic rock composition causes human health concerns worldwide. This paper evaluated the heavy metals (HMs) concentrations and physicochemical variables of groundwater around enriched chromite mines of Malakand, Pakistan, with particular emphasis on water quality, hydro-geochemistry, spatial distribution, geochemical speciation, and human health impacts. To better understand the groundwater hydrogeochemical profile and HMs enrichment, groundwater samples were collected from the mining region (n = 35), non-mining region (n = 20), and chromite mines water (n = 5) and then analyzed using ICPMS (Agilent 7500 ICPMS). The ranges of concentrations in the mining, non-mining, and chromite mines water were 0.02–4.5, 0.02–2.3, and 5.8–6.0 mg/L for CR, 0.4–3.8, 0.05–3.6, and 3.2–5.8 mg/L for Ni, and 0.05–0.8, 0.05–0.8, and 0.6–1.2 mg/L for Mn. Geochemical speciation of groundwater variables such as OH−, H+, Cr+2, Cr+3, Cr+6, Ni+2, Mn+2, and Mn+3 was assessed by atomic fluorescence spectrometry (AFS). Geochemical speciation determined the mobilization, reactivity, and toxicity of HMs in complex groundwater systems. Groundwater facies showed 45% CaHCO3, 30% NaHCO3, 23.4% NaCl, and 1.6% Ca-Mg-Cl water types. The noncarcinogenic and carcinogenic risk of HMs outlined via hazard quotient (HQ) and total hazard indices (THI) showed the following order: Ni > Cr > Mn. Thus, the HHRA model suggested that children are more vulnerable to HMs toxicity than adults. Hierarchical agglomerative cluster analysis (HACA) showed three distinct clusters, namely the least, moderately, and severely polluted clusters, which determined the severity of HMs contamination to be 66.67% overall. The PCAMLR and PMF receptor model suggested geogenic (minerals prospects), anthropogenic (industrial waste and chromite mining practices), and mixed (geogenic and anthropogenic) sources for groundwater contamination. The mineral phases of groundwater suggested saturation and undersaturation. Nemerow’s pollution index (NPI) values determined the unsuitability of groundwater for domestic purposes. The EC, turbidity, PO4−3, Na+, Mg+2, Ca+2, Cr, Ni, and Mn exceeded the guidelines suggested by the World Health Organization (WHO). The HMs contamination and carcinogenic and non-carcinogenic health impacts of HMs showed that the groundwater is extremely unfit for drinking, agriculture, and domestic demands. Therefore, groundwater wells around the mining region need remedial measures. Thus, to overcome the enrichment of HMs in groundwater sources, sustainable management plans are needed to reduce health risks and ensure health safety.
Funder
King Saud University, Riyadh, Saudi Arabia National Natural Science Foundation of China State Administration of Foreign Experts Affairs and the Ministry of Education of China China Postdoctoral Science Foundation
Subject
Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health
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