Abstract
The bioavailability and potential uptake of heavy metals by crops is fundamentally influenced by the forms of metals in soils. Organic matter plays an important role in controlling the transformation of heavy metal fractionations in soils. However, long-term effects of organic matter on heavy metal speciation remains highly uncertain. In this study, rice straw was introduced to a subtropical Pb-contaminated soil for 2-year period so as to clarify the redistribution of Pb fractions and their correlations with soil properties. By combining sequential extraction and X-ray absorption fine structure spectroscopy, we find that lead is predominantly presented in Fe oxide-bound, surface adsorbed, and residual fractions in the soil. The incorporation of rice straw can effectively reduce the labile species of Pb by promoting the binding of Pb to iron oxides. Furthermore, aging leads to the transfer of considerable amounts of Pb to the association with Fe oxides and this transformation is enhanced by the presence of organic matter. Organic matter input and soil aging tend to shift Pb to amorphous Fe oxides than crystalline Fe oxides. The correlation analysis shows that Fe oxide fractions play vital roles in controlling the forms of Pb in soil. This study presents the first result regarding the long-term effect of organic matter on the redistribution of Pb in naturally polluted soil, which is useful for understanding the fate of Pb and developing remediation strategies for Pb-polluted soils.
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References
Bataillard P, Cambier P, Picot C (2003) Short-term transformations of lead and cadmium compounds in soil after contamination. Eur J Soil Sci 54:365–376. https://doi.org/10.1046/j.1365-2389.2003.00527.x
Beesley L, Moreno-Jiménez E, Gomez-Eyles JL (2010) Effects of biochar and greenwaste compost amendments on mobility, bioavailability and toxicity of inorganic and organic contaminants in a multi-element polluted soil. Environ Pollut 158:2282–2287. https://doi.org/10.1016/j.envpol.2010.02.003
Bolan N, Kunhikrishnan A, Thangarajan R, Kumpiene J, Park J, Makino T, Kirkham MB, Scheckel K (2014) Remediation of heavy metal(loid)s contaminated soils – to mobilize or to immobilize? J Hazard Mater 266:141–166. https://doi.org/10.1016/j.jhazmat.2013.12.018
Chen CM, Dynes JJ, Wang J, Sparks DL (2014) Properties of Fe-organic matter associations via coprecipitation versus adsorption. Environ Sci Technol 48:13751–13759. https://doi.org/10.1021/es503669u
Clemente R, Bernal MP (2006) Fractionation of heavy metals and distribution of organic carbon in two contaminated soils amended with humic acids. Chemosphere 64:1264–1273. https://doi.org/10.1016/j.chemosphere.2005.12.058
Cooperative Research Group on Chinese Soil Taxonomy (2001) Chinese soil taxonomy. Science Press, Beijing, China (in Chinese)
Gräfe M, Donner E, Collins RN, Lombi E (2014) Speciation of metal(loid)s in environmental samples by X-ray absorption spectroscopy: a critical review. Anal Chim Acta 822:1–22. https://doi.org/10.1016/j.aca.2014.02.044
Gu B, Schmitt J, Chen Z, Liang L, McCarthy JF (1995) Adsorption and desorption of different organic matter fractions on iron oxide. Geochim Cosmochim Ac 59:219–229. https://doi.org/10.1016/0016-7037(94)00282-Q
Hass A, Fine P (2010) Sequential selective extraction procedures for the study of heavy metals in soils, sediments, and waste materials—a critical review. Crit Rev Env Sci Tec 40:365–399. https://doi.org/10.1080/10643380802377992
Jalali M, Khanlari ZV (2008) Effect of aging process on the fractionation of heavy metals in some calcareous soils of Iran. Geoderma 143:26–40. https://doi.org/10.1016/j.geoderma.2007.10.002
Juhasz AL, Scheckel KG, Betts AR, Smith E (2016) Predictive capabilities of in vitro assays for estimating Pb relative bioavailability in phosphate amended soils. Environ Sci Technol 50:13086–13094. https://doi.org/10.1021/acs.est.6b04059
Karna RR, Noerpel M, Betts AR, Scheckel KG (2017) Lead and arsenic bioaccessibility and speciation as a function of soil particle size. J Environ Qual 46:1225–1235. https://doi.org/10.2134/jeq2016.10.0387
Krishnamurti GSR, Huang PM, Van Rees KCJ, Kozak LM, Rostad HPW (1995) Speciation of particulate-bound cadmium of soils and its bioavailability. Analyst 120:659–665. https://doi.org/10.1039/an9952000659
Lalonde K, Mucci A, Ouellet A, Gélinas Y (2012) Preservation of organic matter in sediments promoted by iron. Nature 483:198–200. https://doi.org/10.1038/nature10855
Li L, Scheckel KG, Zheng L, Liu G, Xing W, Xiang G (2014) Immobilization of lead in soil influenced by soluble phosphate and calcium: lead speciation evidence. J Environ Qual 43:468–474. https://doi.org/10.2134/jeq2013.07.0272
Liang S, Guan DX, Ren JH, Zhang M, Luo J, Ma LQ (2014) Effect of aging on arsenic and lead fractionation and availability in soils: coupling sequential extractions with diffusive gradients in thin-films technique. J Hazard Mater 273:272–279. https://doi.org/10.1016/j.jhazmat.2014.03.024
Liu Y, Wen C, Liu X (2013) China’s food security soiled by contamination. Science 339:1382–1383. https://doi.org/10.1126/science.339.6126.1382-b
Loeppert RH, Inskeep WP (1996) Iron. In: Sparks DL, Page AL, Helmke PA, Loeppert RH, Soltanpour PN (eds) Methods of soil analysis part 3—chemical methods. Soil Science Society of America, Madison, WI, pp 639–664. https://doi.org/10.2136/sssabookser5.3.c23
Lu A, Zhang S, Shan XQ (2005) Time effect on the fractionation of heavy metals in soils. Geoderma 125:225–234. https://doi.org/10.1016/j.geoderma.2004.08.002
Ma Y, Lombi E, Oliver IW, Nolan AL, McLaughlin MJ (2006) Long-term aging of copper added to soils. Environ Sci Technol 40:6310–6317. https://doi.org/10.1021/es060306r
Malinowski ER (1978) Theory of error for target factor analysis with applications to mass spectrometry and nuclear magnetic resonance spectrometry. Anal Chim Acta 103:339–354. https://doi.org/10.1016/S0003-2670(01)83099-3
Pichtel J, Bradway DJ (2008) Conventional crops and organic amendments for Pb, Cd and Zn treatment at a severely contaminated site. Bioresource Technol 99:1242–1251. https://doi.org/10.1016/j.biortech.2007.02.042
Pichtel J, Kuroiwa K, Sawyerr HT (2000) Distribution of Pb, Cd and Ba in soils and plants of two contaminated sites. Environ Pollut 110:171–178. https://doi.org/10.1016/S0269-7491(99)00272-9
Ravel B, Newville M (2005) Athena, Artemis, Hephaestus : data analysis for X-ray absorption spectroscopy using IFEFFIT. J Synchrotron Radiat 12:537–541. https://doi.org/10.1107/S0909049505012719
Shaheen SM, Tsadilas CD, Rinklebe J (2013) A review of the distribution coefficients of trace elements in soils: influence of sorption system, element characteristics, and soil colloidal properties. Adv Colloid Interfac 201–202:43–56. https://doi.org/10.1016/j.cis.2013.10.005
Shuman LM (1985) Fractionation method for soil microelements. Soil Sci 140:11–22. https://doi.org/10.1097/00010694-198507000-00003
Sparks DL (2003) Chemistry of soil organic matter. In: Sparks DL (ed) Environmental soil chemistry, 2nd edn. Academic Press, Burlington, pp 75–113. https://doi.org/10.1016/B978-012656446-4/50003-7
Tang X, Li X, Liu X, Hashmi MZ, Xu J, Brookes PC (2015) Effects of inorganic and organic amendments on the uptake of lead and trace elements by Brassica chinensis grown in an acidic red soil. Chemosphere 119:177–183. https://doi.org/10.1016/j.chemosphere.2014.05.081
Teng Y, Wu J, Lu S, Wang Y, Jiao X, Song L (2014) Soil and soil environmental quality monitoring in China: a review. Environ Int 69:177–199. https://doi.org/10.1016/j.envint.2014.04.014
Tessier A, Campbell PGC, Bisson M (1979) Sequential extraction procedure for the speciation of particulate trace metals. Anal Chem 51:844–851. https://doi.org/10.1021/ac50043a017
Walkley A, Black IA (1934) An examination of the degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method. Soil Sci 37:29–38. https://doi.org/10.1097/00010694-193401000-00003
Wang Y, Wang H, He JS, Feng X (2017) Iron-mediated soil carbon response to water-table decline in an alpine wetland. Nat Commun 8:15972. https://doi.org/10.1038/ncomms15972
Webb SM (2005) SIXpack: a graphical user interface for XAS analysis using IFEFFIT. Phys Scripta T115:1011–1014. https://doi.org/10.1238/Physica.Topical.115a01011
Xiong J, Koopal LK, Weng L, Wang M, Tan W (2015) Effect of soil fulvic and humic acid on binding of Pb to goethite–water interface: linear additivity and volume fractions of HS in the stern layer. J Colloid Interf Sci 457:121–130. https://doi.org/10.1016/j.jcis.2015.07.001
Yang QW, Shu WS, Qiu JW, Wang HB, Lan CY (2004) Lead in paddy soils and rice plants and its potential health risk around Lechang lead/zinc mine, Guangdong, China. Environ Int 30:883–889. https://doi.org/10.1016/j.envint.2004.02.002
Zeng F, Ali S, Zhang H, Ouyang Y, Qiu B, Wu F, Zhang G (2011) The influence of pH and organic matter content in paddy soil on heavy metal availability and their uptake by rice plants. Environ Pollut 159:84–91. https://doi.org/10.1016/j.envpol.2010.09.019
Zhao FJ, Ma Y, Zhu YG, Tang Z, McGrath SP (2015) Soil contamination in China: current status and mitigation strategies. Environ Sci Technol 49:750–759. https://doi.org/10.1021/es5047099
Zhou YF, Haynes RJ, Naidu R (2012) Use of inorganic and organic wastes for in situ immobilisation of Pb and Zn in a contaminated alkaline soil. Environ Sci Pollut R 19:1260–1270. https://doi.org/10.1007/s11356-011-0648-4
Acknowledgements
The authors sincerely thank the Beijing Synchrotron Radiation Facility and workers at beamline 1W1B. Data of several XAFS standard spectra were kindly provided by Dr. K. G. Scheckel from United States Environmental Protection Agency and Dr. L. P. Li from Henan University of Technology.
Funding
This work was funded by the National Key Research and Development Program (2017YFA0605001), National Natural Science Foundation of China (41230854), and NSFC–RS (Royal Society) joint project (No. 41611130184).
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Wan, D., Zhang, N., Chen, W. et al. Organic matter facilitates the binding of Pb to iron oxides in a subtropical contaminated soil. Environ Sci Pollut Res 25, 32130–32139 (2018). https://doi.org/10.1007/s11356-018-3173-x
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DOI: https://doi.org/10.1007/s11356-018-3173-x