Influence of different organic geo-sorbents on Spinacia oleracea grown in chromite mine-degraded soil: a greenhouse study
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Potentially toxic element (PTE) concentrations in mine-degraded soil and their bioaccumulation in food crops is a public health concern worldwide. The current study investigates the influence of organic geo-sorbents including biochar (B), farmyard manure (FYM), and peat moss (PTM) on PTE in chromite mine-degraded soil and their subsequent effects on spinach biomass, PTE uptake, average dietary intake (ADI), and health risk (HRI) associated with PTE via spinach consumption.
Materials and methods
Chromite mine-degraded soil samples were collected from different mining sites in Kohistan region. Pot experiments were carried out in the greenhouse environment. The selected geo-sorbents (B, FYM and PTM) were mixed at application rates of 1%, 2%, and 5%. Contaminated soil without geo-sorbents (control treatment) was also included in each batch of the experiments. Local FYM and PTM were used in this experiment, while B was provided by the Institute of Urban Environment (CAS) Xiamen, China. The total carbon (C), total nitrogen (N), and total sulfur (S) contents in mine-degraded soil and organic geo-sorbents were measured using a macro-elementor (VarioMax CNS, Germany). Total (acid digestion) and bioavailable PTE (As, Cd, Cr, Ni, Zn, and Pb) concentrations in mine-degraded soil and spinach were determined using inductive coupled plasma mass spectrophotometer (ICP-MS 7500 CX, Agilent Technologies, USA).
Results and discussion
The addition of organic geo-sorbents effectively immobilized the PTE concentrations in mine-degraded soil, and increased the major nutrient contents and thereby reduced the bioaccumulation of PTE (Cr, As, Ni, Cd, Zn, and Pb) in spinach. Consequently, B2, B5, FYM2, FYM5, PTM2, and PTM5 amendments significantly (p < 0.001) increased the biomass, whereas the B1, FYM1, and PTM1 addition showed no significant increase in spinach biomass as compared to the control treatment. The results showed that all the organic geo-sorbents had significantly (p < 0.001) reduced the As uptake in spinach, while B2, B5, FYM2, FYM5, and PTM5 significantly (p < 0.001) decreased PTE bioaccumulation as compared to the control treatment.
The highest application rate (5%) showed the best result in increasing the spinach growth and biomass as well as reducing the PTE mobility in soil, and their bioaccumulation in spinach, as compared to 1% and 2% application rates and also with the control treatment. Furthermore, the average dietary intake (ADI) of PTE and health risk indices (HRIs) reduced via spinach consumption for both the children and adults, due to the addition of selected organic geo-sorbents used for soil amendments.
KeywordsBioaccumulation Health risk Mine-degraded soil Potentially toxic element Spinach
The financial support was provided by the Chinese Academy of Sciences (CAS), China, under CAS (PIFI) postdoctoral research (Grant No. 2017PB0062) to the first author.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no competing interest.
- Ahmad M, Ok YS, Rajapaksha AU, Lim JE, Kim BY, Ahn JH, Lee YH, Al-Wabel MI, Lee SE, Lee SS (2016) Lead and copper immobilization in a shooting range soil using soybean stover- and pine needle-derived biochars: chemical, microbial and spectroscopic assessments. J Hazard Mater 301:179–186CrossRefGoogle Scholar
- Ali K, Arif M, Jan M et al (2015) Biochar: a novel tool to enhance wheat productivity and soil fertility on sustainable basis under wheat-maize-wheat cropping pattern. Pak J Bot 47:1023–1031Google Scholar
- Angelova V, Ivanov R, Pevicharova G, Ivanov K (2010) Effect of organic geo-sorbents on PTE uptake by potato plants. 19th World Congress of Soil Science. Soil Solutions for a Changing World Brisbane, Australia. Published on DVDGoogle Scholar
- Brennan A, Jiménez EM, Alburquerque JA, Knapp CW, Switzer C (2014) Effects of biochar and activated carbon amendment on maize growth and the uptake and measured availability of polycyclic aromatic hydrocarbons (PAHs) and potentially toxic elements (PTE). Environ Pollut 193:79–87CrossRefGoogle Scholar
- Downie A, Crosky A, Munroe P (2009) Physical properties of biochar. Biochar for environmental management. Sci Tech pp 13–32Google Scholar
- Eisler R (2004) Arsenic hazards to humans, plants, and animals from gold mining. Rev Environ Contam Toxicol 180:133–165Google Scholar
- Gomez-Eyles JL, Beesley L, Moreno-Jiménez E, Ghosh U, Sizmur T (2013) The potential of biochar geo-sorbents to remediate contaminated soils. In: Ladygina N, Rineau F (eds) Biochar and Soil Biota. CRC Press, pp 100–133Google Scholar
- Gondek K (2010) Zinc and cadmium accumulation in maize (Zea mays L) and the concentration of mobile forms of these metals in soil after application of farmyard manure and sewage sludge. J Elem 15:639–652Google Scholar
- Igwe JC, Abia AA (2006) A bio separation process for removing heavy metals from waste water using biosorbents. Afr J Biotechnol 5:1167–1179Google Scholar
- Khan MJ, Azeem MT, Jan MT, Perveen S (2012) Effect of amendments on chemical immobilization of heavy metals in sugar mill contaminated soils. Soil Environ 31:55–66Google Scholar
- Lee SJ, Lee ME, Chung JW, Park JH, Huh KY, Jun GI (2013) Immobilization of lead from Pb-contaminated soil amended with peat moss. Hindawi Publishing Corporation. J Chem Article ID 509520Google Scholar
- Lehmann J, Joseph S (2009) Biochar for environmental management: an introduction. In: Lehmann J, Joseph S (eds) Biochar for environmental management: science and technology. Earthscan, London, pp 1–12Google Scholar
- Namgay T, Singh B, and Singh BP (2010) Influence of biochar application to soil on the availability of As, Cd, Cu, Pb, and Zn to maize (Zea mays L.). J Aust Soil Res 48:638–647Google Scholar
- Nawab J, Ghani J, Khan S, Xiaoping W (2018a) Minimizing the risk to human health due to the ingestion of arsenic and toxic metals in vegetables by the application of biochar, farmyard manure and peat moss. J Environ Manage 214:172–183. https://doi.org/10.1016/j.jenvman.2018.02.093
- Nawab J, Farooqi S, Wang XP, Khan S, Khan A (2018b) Levels, dietary intake, and health risk of potentially toxic metals in vegetables, fruits, and cereal crops in Pakistan. Environ Sci Pollut Res 25:5558–5571Google Scholar
- Novak JM, Spokas KA, Cantrell KB et al (2014) Effects of biochars and hydrochars produced from lignocellulosic and animal manure on fertility of a Mollisol and Entisol. Soil Use Manag 30:175–181Google Scholar
- Park JH, Choppala G, Lee SJ, Bolan N, Chung JW, Edraki M (2013) Comparative sorption of Pb and Cd by biochars and its implication for metal immobilization in soils. Water Air Soil Pollut 224:1711Google Scholar
- Pipoyan D, Beglaryan M, Costantini L, Molinari R, Merendino N (2017) Risk assessment of population exposure to toxic trace elements via consumption of vegetables and fruits grown in some mining areas of Armenia. Hum Ecol Risk Assess. https://doi.org/10.1080/10807039.2017.1381019
- SEPA (1995) Environmental quality standard for soils. State Environmental Protection Administration, ChinaGoogle Scholar
- Verheijen F, Jeffery S, Bastos AC, Van der Velde M, Diafas I (2010) Biochar application to soils: a critical scientific review of effects of soil properties, processes and functions. JRC Scientific and Technical Reports, EUR 24099- EN, ItalyGoogle Scholar
- Wang ZQ, Liu TT, Wang SZ, Meng XM, Wu LH (2007) Review and prospect applied of peat in environmental remediation. Bull Sci Technol 23:278–281Google Scholar
- Younis U, Qayyum MF, Shah MHR, Danish S, Shahzad AN, Mahmood S, Malik SA (2015) Growth, survival and heavy metal (Cd and Ni) uptake of spinach (Spinacia oleracea) and fenugreek (Trigonella corniculata) in a biochar-amended sewage-irrigated contaminated soil. J Plant Nutr Soil Sci 178:209–217CrossRefGoogle Scholar