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Mercury contamination in selected foodstuffs and potential health risk assessment along the artisanal gold mining, Gilgit-Baltistan, Pakistan

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Abstract

This study investigates the mercury (Hg) contaminations in soil and foodstuffs along the artisanal gold mining areas, Gilgit-Baltistan Province, Pakistan. For this purpose, soils were analyzed for Hg concentrations and evaluated for the enrichment/contamination using enrichment factor or contamination factors (CF). The CF values ranged from 18.9 to 153 showed multifold higher levels of Hg contamination as compared to background or reference site. Foodstuffs including vegetables, seeds or grains and fish muscles showed Hg accumulation. Results revealed that Hg concentrations in foodstuffs were higher than the critical human health value set by European Union. The Hg in foodstuffs was consumed and, therefore, evaluated for the risk assessment indices using the daily intake (DI) and health risk index (HRI) for the exposed human population both children and adults. Results of this study revealed that cumulative HRI values through foodstuffs consumption were <1 (within safe limit), but if the current practices continued, then the Hg contamination could pose potential threat to exposed population in near future.

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References

  • AMAP/UNEP (Arctic Monitoring and Assessment Programme/United Nations Environment Programme). (2013). Technical background report for the global mercury assessment.

  • Ávila, P. F., Ferreira da Silva, E., & Candeias, C. (2017). Health risk assessment through consumption of vegetables rich in heavy metals: The case study of the surrounding villages from Panasqueira mine Central Potugal. Environmental Geochemistry and Health, 39, 565–589.

    Article  Google Scholar 

  • Bash, J. O., Bresnahan, P., & Miller, D. R. (2007). Dynamic surface interface exchanges of mercury: A review and compartmentalized modeling framework. Journal of Applied Meteorology and Climatology, 46, 1606–1618.

    Article  Google Scholar 

  • Biber, K. (2012). Investigation of the source, fate, and transport of mercury in Hunza River. Pakistan: Northern Areas.

    Google Scholar 

  • Biber, K., Khan, S. D., & Shah, M. T. (2015). The source and fate of sediment and mercury in Hunza River basin, Northern Areas, Pakistan. Hydrological Processes, 29, 579–587.

    Article  CAS  Google Scholar 

  • Bose-O’Reilly, S., McCarty, K. M., Steckling, N., & Lettmeier, B. (2010). Mercury exposure and children’s health. Current Problems in Pediatric and Adolescent Health Care, 40, 186–215.

    Article  Google Scholar 

  • Brindha, K., Pavelic, P., Sotoukee, T., Douangsavanh, S., & Elango, L. (2016). Geochemical characteristics and groundwater quality in the Vientiane Plain Laos. Exposure and Health, 9, 1–16.

    Google Scholar 

  • Brioschi, L., Steinmann, M., Lucot, E., Pierret, M.-C., Stille, P., Prunier, J., et al. (2013). Transfer of rare earth elements (REE) from natural soil to plant systems: Implications for the environmental availability of anthropogenic REE. Plant and Soil, 366, 143–163.

    Article  CAS  Google Scholar 

  • Castilhos, Z., et al. (2015). Human exposure and risk assessment associated with mercury contamination in artisanal gold mining areas in the Brazilian Amazon. Environmental Science and Pollution Research, 22, 11255–11264.

    Article  CAS  Google Scholar 

  • Cheng, Z., et al. (2015). Environmental mercury concentrations in cultured low-trophic-level fish using food waste-based diets. Environmental Science and Pollution Research, 22, 495–507.

    Article  CAS  Google Scholar 

  • Dai, Z., et al. (2013). Assessing anthropogenic sources of mercury in soil in Wanshan Hg mining area, Guizhou, China. Environmental Science and Pollution Research, 20, 7560–7569.

    Article  CAS  Google Scholar 

  • Delgado, J., Pérez-López, R., Galván, L., Nieto, J. M., & Boski, T. (2012). Enrichment of rare earth elements as environmental tracers of contamination by acid mine drainage in salt marshes: A new perspective. Marine Pollution Bulletin, 64, 1799–1808.

    Article  CAS  Google Scholar 

  • Feng, X., et al. (2007). Human exposure to methylmercury through rice intake in mercury mining areas, Guizhou Province, China. Environmental Science & Technology, 42, 326–332.

    Article  Google Scholar 

  • Fite, T., & Leta, S. (2015). Determination of levels of As, Cd, Cr, Hg and Pb in soils and some vegetables taken from river mojo water irrigated farmland at Koka Village, Oromia State, East Ethiopia. International Journal of Sciences: Basic Applied Research, 21, 352–372.

    Google Scholar 

  • Fitzgerald, R. H., Jr. (1995). Acetabular Labrum Tears: Diagnosis and Treatment. Clinical Orthopaedics and Related Research, 311, 60–68.

    Google Scholar 

  • Gibb, H., & O’Leary, K. G. (2014). Mercury exposure and health impacts among individuals in the artisanal and small-scale gold mining community: A comprehensive review. Environmental Health Perspectives, 122, 667–672.

    CAS  Google Scholar 

  • Hussain, M., Muhammad, S., Malik, R. N., Khan, M. U., & Farooq, U. (2014). Status of heavy metal residues in fish species of Pakistan. In D. Whitacre (Ed.), Reviews of environmental contamination and toxicology (Continuation of residue reviews) (Vol. 230, pp. 111–132). Berlin: Springer.

    Google Scholar 

  • Hussein, H. S., Ruiz, O. N., Terry, N., & Daniell, H. (2007). Phytoremediation of mercury and organomercurials in chloroplast transgenic plants: Enhanced root uptake, translocation to shoots, and volatilization. Environmental Science and Technology, 41, 8439–8446.

    Article  CAS  Google Scholar 

  • Islam, M. A., Romić, D., Akber, M. A., & Romić, M. (2017). Trace metals accumulation in soil irrigated with polluted water and assessment of human health risk from vegetable consumption in Bangladesh. Environmental Geochemistry and Health. doi:10.1007/s10653-017-9907-8.

    Google Scholar 

  • Khan, M. U., Malik, R. N., & Muhammad, S. (2013). Human health risk from Heavy metal via food crops consumption with wastewater irrigation practices in Pakistan. Chemosphere, 93, 2230–2238.

    Article  CAS  Google Scholar 

  • Khan, M. U., Muhammad, S., & Malik, R. N. (2014). Potential risk assessment of metal consumption in food crops irrigated with wastewater. CLEAN–Soil, Air, Water, 42, 1415–1422.

    Article  CAS  Google Scholar 

  • Khan, M., Muhammad, S., Malik, R., Khan, S., & Tariq, M. (2016a). Heavy metals potential health risk assessment through consumption of wastewater irrigated wild plants: A case study. Human and Ecological Risk Assessment: An International Journal, 22, 141–152.

    Article  CAS  Google Scholar 

  • Khan, S., Rauf, R., Muhammad, S., Qasim, M., & Din, I. (2016b). Arsenic and heavy metals health risk assessment through drinking water consumption in the Peshawar District. Pakistan Human and Ecological Risk Assessment: An International Journal, 22, 581–596.

    Article  CAS  Google Scholar 

  • Khan, S., Rehman, S., Khan, A. Z., Khan, M. A., & Shah, M. T. (2010). Soil and vegetables enrichment with heavy metals from geological sources in Gilgit, northern Pakistan. Ecotoxicology and Environmental Safety, 73, 1820–1827.

    Article  CAS  Google Scholar 

  • Kim, K.-H., & Lindberg, S. E. (1995). Design and initial tests of a dynamic enclosure chamber for measurements of vapor-phase mercury fluxes over soils. Water, Air, and Soil Pollution, 80, 1059–1068.

    Article  CAS  Google Scholar 

  • Leopold, K., Foulkes, M., & Worsfold, P. (2010). Methods for the determination and speciation of mercury in natural waters—A review. Analytica Chimica Acta, 663, 127–138. doi:10.1016/j.aca.2010.01.048.

    Article  CAS  Google Scholar 

  • Li, P., Feng, X., Chan, H.-M., Zhang, X., & Du, B. (2015). Human body burden and dietary methylmercury intake: The relationship in a rice-consuming population. Environmental Science & Technology, 49, 9682–9689.

    Article  CAS  Google Scholar 

  • Lindqvist, K. S. (1991). Epidemiology of traffic accidents in a Swedish municipality. Accident Analysis and Prevention, 23, 509–519.

    Article  CAS  Google Scholar 

  • Meng, B., Feng, X., Qiu, G., Wang, D., Liang, P., Li, P., et al. (2012). Inorganic mercury accumulation in rice (Oryza sativa L.). Environmental Toxicology and Chemistry, 31, 2093–2098.

    Article  CAS  Google Scholar 

  • Muhammad, S., et al. (2013). Wild plant assessment for heavy metal phytoremediation potential along the mafic and ultramafic terrain in northern Pakistan. BioMed Research International, 2013, 9.

    Google Scholar 

  • Niane, B., et al. (2015). Human exposure to mercury in artisanal small-scale gold mining areas of Kedougou region, Senegal, as a function of occupational activity and fish consumption. Environmental Science and Pollution Research, 22, 7101–7111.

    Article  CAS  Google Scholar 

  • Pinedo-Hernández, J., Marrugo-Negrete, J., & Díez, S. (2015). Speciation and bioavailability of mercury in sediments impacted by gold mining in Colombia. Chemosphere, 119, 1289–1295.

    Article  Google Scholar 

  • Qiu, G., Feng, X., Li, P., Wang, S., Li, G., Shang, L., et al. (2008). Methylmercury accumulation in rice (Oryza sativa L.) grown at abandoned mercury mines in Guizhou. China Journal of Agricultural and Food Chemistry, 56, 2465–2468.

    Article  CAS  Google Scholar 

  • Rasmussen, P. E., Mierle, G., & Nriagu, J. O. (1991). The analysis of vegetation for total mercury. Water Air & Soil Pollution, 56, 379–390.

    Article  CAS  Google Scholar 

  • Riaz, A., Khan, S., Shah, M. T., Li, G., Gul, N., & Shamshad, I. (2016). Mercury contamination in the blood, urine, hair and nails of the gold washers and its human health risk during extraction of placer gold along Gilgit, Hunza and Indus rivers in Gilgit-Baltistan, Pakistan. Environmental Technology & Innovation, 5, 22–29.

    Article  Google Scholar 

  • Rodrigues, S., et al. (2014). Oral bioaccessibility and human exposure to anthropogenic and geogenic mercury in urban, industrial and mining areas. Science of the Total Environment, 496, 649–661.

    Article  CAS  Google Scholar 

  • Shah, M. T., Ara, J., Muhammad, S., Khan, S., Asad, S. A., & Ali, L. (2014). Potential heavy metals accumulation of indigenous plant species along the mafic and ultramafic terrain in the Mohmand Agency, Pakistan. CLEAN–Soil, Air, Water, 42, 339–346.

    Article  CAS  Google Scholar 

  • Shah, M. T., & Khan, H. (2004). Exploration and extraction of placer gold in the terraces of Bagrot valley, Gilgit, northern Pakistan. Geological Bulletin, University of Peshawar, 37, 27–40.

    Google Scholar 

  • Ullrich, S. M., Tanton, T. W., & Abdrashitova, S. A. (2001). Mercury in the aquatic environment: A review of factors affecting methylation. Critical Reviews in Environmental Science and Technology, 31, 241–293.

    Article  CAS  Google Scholar 

  • UNEP (United Nations Environment Programme). (2013). Mercury—Time to act.

  • USEPA (US Environmental Protection Agency). (2002). Supplemental guidance for developing soil screening levels for superfund sites. Washington: Environmental Protection Agency, Office of Emergency and Remedial Response.

    Google Scholar 

  • Voegborlo, R., & Akagi, H. (2007). Determination of mercury in fish by cold vapour atomic absorption spectrometry using an automatic mercury analyzer. Food Chemistry, 100, 853–858.

    Article  CAS  Google Scholar 

  • Weiss, B. (2000). Vulnerability of children and the developing brain to neurotoxic hazards. Environmental Health Perspectives, 108, 375–381.

    Google Scholar 

  • WHO (World Health Organization). (2007). Exposure to mercury: A major public health concern. Geneva: WHO.

    Google Scholar 

  • WHO (World Health Organization). (2008). Mercury: Assessing the burden of disease at national and local levels. Environmental Burden of Disease Series, No. 16. Geneva: WHO.

  • Yang, J., Chen, L., Shi, W.-L., Liu, L.-Z., Li, Y., & Meng, X.-Z. (2015). Mercury distribution in sediment along urban–rural gradient around Shanghai (China): Implication for pollution history. Environmental Science and Pollution Research, 22, 1697–1704.

    Article  CAS  Google Scholar 

  • Yanyu, W., Junliang, T., & Qixing, Z. (1992). Study on the proposed environmental guidelines for Cd, Hg, Pb and As in soil of China. Journal of Environmental Sciences, 4, 66–73.

    Google Scholar 

  • Zhang, H., Feng, X., Larssen, T., Qiu, G., & Vogt, R. D. (2010). In inland China, rice, rather than fish, is the major pathway for methylmercury exposure. Environmental Health Perspectives, 118, 1183.

    Article  CAS  Google Scholar 

  • Zheng, N., Wang, Q., & Zheng, D. (2007). Health risk of Hg, Pb, Cd, Zn, and Cu to the inhabitants around Huludao Zinc plant in China via consumption of vegetables. Science of the Total Environment, 383, 81–89.

    Article  CAS  Google Scholar 

  • Zhong, T., Xue, D., Zhao, L., & Zhang, X. (2017). Concentration of heavy metals in vegetables and potential health risk assessment in China. Environmental Geochemistry and Health. doi:10.1007/s10653-017-9909-6.

    Google Scholar 

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Acknowledgements

We are thankful for the financial support of Higher Education Commission, Pakistan, PAK–US Science and Technology cooperation program Phase IV and Chinese Academy of Sciences President’s International Fellowship for Visiting Scientists (2015VEB055). We also acknowledge the reviewers for their time and detailed comments that have improved quality of this paper.

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Correspondence to Sardar Khan or Said Muhammad.

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Riaz, A., Khan, S., Muhammad, S. et al. Mercury contamination in selected foodstuffs and potential health risk assessment along the artisanal gold mining, Gilgit-Baltistan, Pakistan. Environ Geochem Health 40, 625–635 (2018). https://doi.org/10.1007/s10653-017-0007-6

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