Abstract
The construction of cascade reservoirs on the Lancang River (the upper Mekong) has an important influence on the distribution and accumulation of heavy metals. Heavy metal contents in porewater provide vital information about their bioavailability, studies on this aspect are rare until now. In this study, sediment cores were collected from four adjacent cascade reservoirs in the upper Mekong River to study the distribution, potential sources, diffusive fluxes and toxicity of heavy metals in porewater. The findings indicated that the average contents of Mn, Fe, As, Ni, Cu, Zn, Cd, and Pb in the sediment porewater were 6442, 644, 11.50, 2.62, 1.23, 3.95, 0.031, and 0.24 µg/L, respectively; these contents varied as the sediment depth increased. Correlation analysis and principal component analysis showed that Cu, Zn, Cd and Pb were mainly associated with anthropogenic sources, As, Mn and Fe were primarily affected by natural inputs, and Ni was affected by a combination of natural and anthropogenic effects. The diffusive fluxes of Mn, Fe, As, Ni, Cu, Zn, Cd, and Pb in the cascade reservoirs of the Lancang River were 919 – 35,022, 2.12 – 2881, 0.17 – 750, 0.71 – 7.70, 2.30 – 31.18, (-3.35) – 6.40, 0.06 – 0.54, and (-0.52) – 4.08 µg/(m2 day), respectively. The results of toxic units suggested that the contamination and toxicity of heavy metals in porewater were not serious. Overall, in the cascade reservoirs, the content and toxicity of heavy metals in porewater of the upstream reservoirs were higher than that of the downstream reservoirs. The operation of the cascade reservoirs enabled greater accumulation of contaminants in sediments of the upstream reservoirs. This research gives strong support for the prevention of heavy metal contamination and the sustainability of water resources under the running condition of cascade reservoirs on such a large international river (the Lancang-Mekong River).
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References
Bai JH, Jia J, Zhang GL, Zhao QQ, Lu QQ, Cui BS, Liu XH (2016) Spatial and temporal dynamics of heavy metal pollution and source identification in sediment cores from the short-term flooding riparian wetlands in a Chinese delta. Environ Pollut 219:379–388. https://doi.org/10.1016/j.envpol.2016.05.016
Bao LI, Shiming D, Chengxin FAN, Xiuling BAI, Hongbin YIN (2008) Estimation of diffusion fluxes on trace heavy metals at sediment-water interface in Fubao Bay of Dianchi Lake. Environ Chem 27:800–804 ((In Chinese with English abstract))
Berner RA (1984) Sedimentary pyrite formation: An update. Geochim Cosmochim Acta 48:605–615. https://doi.org/10.1016/0016-7037(84)90089-9
Binh DV, Kantoush S, Sumi T (2020) Changes to long-term discharge and sediment loads in the Vietnamese Mekong Delta caused by upstream dams. Geomorphology 353:14. https://doi.org/10.1016/j.geomorph.2019.107011
Blasco J, Saenz V, Gomez-Parra A (2000) Heavy metal fluxes at the sediment-water interface of three coastal ecosystems from south-west of the Iberian Peninsula. Sci Total Environ 247:189–199. https://doi.org/10.1016/s0048-9697(99)00490-8
Bufflap SE, Allen HE (1995) Sediment pore-water collection methods for trace-metal analysis: a review. Water Res 29:165–177. https://doi.org/10.1016/0043-1354(94)e0105-f
Burgess RM, Berry WJ, Mount DR, Di Toro DM (2013) Mechanistic sediment quality guidelines based on contaminant bioavailability: equilibrium partitioning sediment benchmarks. Environ Toxicol Chem 32:102–114. https://doi.org/10.1002/etc.2025
Campanha MB, Moreira AB, Bisinoti MC (2012) Metal fluxes at the sediment-water interface in rivers in the Turvo/Grande drainage basin, So Paulo State, Brazil. J Soils Sediments 12:1508–1516. https://doi.org/10.1007/s11368-012-0591-0
Carraro A, Fabbri P, Giaretta A, Peruzzo L, Tateo F, Tellini F (2015) Effects of redox conditions on the control of arsenic mobility in shallow alluvial aquifers on the Venetian Plain (Italy). Sci Total Environ 532:581–594. https://doi.org/10.1016/j.scitotenv.2015.06.003
Chatterjee M, Silva EV, Sarkar SK, Sella SM, Bhattacharya A, Satpathy KK, Prasad MVR, Chakraborty S, Bhattacharya BD (2007) Distribution and possible source of trace elements in the sediment cores of a tropical macrotidal estuary and their ecotoxicological significance. Environ Int 33:346–356. https://doi.org/10.1016/j.envint.2006.11.013
Chen J, Wang PF, Wang C, Wang X, Miao LZ, Liu S, Yuan QS (2019) Dam construction alters function and community composition of diazotrophs in riparian soils across an environmental gradient. Soil Biol Biochem 132:14–23. https://doi.org/10.1016/j.soilbio.2019.01.020
China, EPA (Environmental Protection Agency), 2002. Environmental Quality Standards for Surface Water (GB 3838–2002).
Cleveland D, Brumbaugh WG, MacDonald DD (2017) A comparison of four porewater sampling methods for metal mixtures and dissolved organic carbon and the implications for sediment toxicity evaluations. Environ Toxicol Chem 36:2906–2915. https://doi.org/10.1002/etc.3884
Couture RM, Gobeil C, Tessier A (2010a) Arsenic, iron and sulfur co-diagenesis in lake sediments. Geochim Cosmochim Acta 74:1238–1255. https://doi.org/10.1016/j.gca.2009.11.028
Couture, R.M., Shafei, B., Van Cappellen, P., Tessier, A., Gobeil, C., 2010b. Non-Steady State Modeling of Arsenic Diagenesis in Lake Sediments. Environmental Science & Technology 44, 197–203. https://doi-org.yorku.80599.net/https://doi.org/10.1021/es902077q
Deng L, Liu SL, Zhao QH, Yang JJ, Wang C, Liu Q (2017) Variation and accumulation of sediments and associated heavy metals along cascade dams in the Mekong River, China. Environ Eng Manag J 16:2075–2087
Deng TL, Wu Y, Yu XP, Guo YF, Chen YW, Belzile N (2014) Seasonal variations of arsenic at the sediment-water interface of Poyang Lake, China. Appl Geochem 47:170–176. https://doi.org/10.1016/j.apgeochem.2014.06.002
Fan H, He DM, Wang HL (2015) Environmental consequences of damming the mainstream Lancang-Mekong River: a review. Earth-Sci Rev 146:77–91. https://doi.org/10.1016/j.earscirev.2015.03.007
Geng JJ, Wang YP, Luo HJ (2015) Distribution, sources, and fluxes of heavy metals in the Pearl River Delta, South China. Mar Pollut Bull 101:914–921. https://doi.org/10.1016/j.marpolbul.2015.10.066
Guan JN, Wang J, Pan H, Yang C, Qu J, Lu N, Yuan X (2018) Heavy metals in Yinma River sediment in a major Phaeozems zone, Northeast China: distribution, chemical fraction, contamination assessment and source apportionment. Sci Rep 8:11. https://doi.org/10.1038/s41598-018-30197-z
Guan, Z.H., Chen, C.Y., Ou, Y.X., Fan, Y.Q., Zhang, Y.S., Cheng, Z.M., et al. (1984). Tibetan rivers and lakes (in Chinese). Beijing: Science
Guo XJ, Zhu XS, Yang ZJ, Ma J, Xiao SB, Ji DB, Liu DF (2020) Impacts of cascade reservoirs on the longitudinal variability of fine sediment characteristics: a case study of the Lancang and Nu Rivers. J Hydrol 581:10. https://doi.org/10.1016/j.jhydrol.2019.124343
Ji HB, Li HX, Zhang Y, Ding HJ, Gao Y, Xing YX (2018) Distribution and risk assessment of heavy metals in overlying water, porewater, and sediments of Yongding River in a coal mine brownfield. J Soils Sediments 18:624–639. https://doi.org/10.1007/s11368-017-1833-y
Keimowitz AR, Zheng Y, Chillrud SN, Mailloux B, Jung HB, Stute M, Simpson HJ (2005) Arsenic redistribution between sediments and water near a highly contaminated source. Environ Sci Technol 39:8606–8613. https://doi.org/10.1021/es050727t
Lei P, Zhang H, Shan BQ, Zhang BZ (2016) Distribution, diffusive fluxes, and toxicity of heavy metals and PAHs in pore water profiles from the northern bays of Taihu Lake. Environ Sci Pollut Res 23:22072–22083. https://doi.org/10.1007/s11356-016-7467-6
Li J, Cheng D, Zhao A, Dong S, You X (2019) The characteristics and the assessment of heavy metal and nutrient pollution in sediments of cascading hydropower dams in Lancang River. Acta Sci Circum 39:2791–2799 ((In Chinese with English abstract))
Li YH, Gregory S (1974) Diffusion of ions in sea-water and in deep-sea sediments. Geochim Cosmochim Acta 38:703–714
Li YY, Gao B, Xu DY, Peng WQ, Liu XB, Qu XD, Zhang M (2020) Hydrodynamic impact on trace metals in sediments in the cascade reservoirs, North China. Sci Total Environ 716:9. https://doi.org/10.1016/j.scitotenv.2020.136914
Liu Q, Liu SL, Zhao HD, Deng L, Wang C, Zhao QH, Dong SK (2015) The phosphorus speciations in the sediments up- and down-stream of cascade dams along the middle Lancang River. Chemosphere 120:653–659. https://doi.org/10.1016/j.chemosphere.2014.10.012
Liu WX, Wang ZJ, Wen XH, Tang HX (1999) The application of preliminary sediment quality criteria to metal contamination in the Le An River. Environ Pollut 105:355–366. https://doi.org/10.1016/s0269-7491(99)00041-x
Lopez DL, Gierlowski-Kordesch E, Hollenkamp C (2010) Geochemical mobility and bioavailability of heavy metals in a lake affected by acid mine drainage: Lake Hope, Vinton County, Ohio. Water Air Soil Pollut 213:27–45. https://doi.org/10.1007/s11270-010-0364-6
Lourino-Cabana B, Lesven L, Charriau A, Billon G, Ouddane B, Boughriet A (2011) Potential risks of metal toxicity in contaminated sediments of Deule river in Northern France. J Hazard Mater 186:2129–2137. https://doi.org/10.1016/j.jhazmat.2010.12.124
Lu XX, Siew RY (2006) Water discharge and sediment flux changes over the past decades in the Lower Mekong River: possible impacts of the Chinese dams. Hydrol Earth Syst Sci 10:181–195. https://doi.org/10.5194/hess-10-181-2006
Ni ZX, Zhang L, Yu S, Jiang ZJ, Zhang JP, Wu YC, Zhao CY, Liu SL, Zhou CH, Huang XP (2017) The porewater nutrient and heavy metal characteristics in sediment cores and their benthic fluxes in Daya Bay, South China. Mar Pollut Bull 124:547–554. https://doi.org/10.1016/j.marpolbul.2017.07.069
Nikolaidis NP, Dobbs GM, Chen J, Lackovic JA (2004) Arsenic mobility in contaminated lake sediments. Environ Pollut 129:479–487. https://doi.org/10.1016/j.envpol.2003.11.005
Palma P, Ledo L, Alvarenga P (2015) Assessment of trace element pollution and its environmental risk to freshwater sediments influenced by anthropogenic contributions: The case study of Alqueva reservoir (Guadiana Basin). CATENA 128:174–184. https://doi.org/10.1016/j.catena.2015.02.002
Perez-Esteban J, Escolastico C, Masaguer A, Vargas C, Moliner A (2014) Soluble organic carbon and pH of organic amendments affect metal mobility and chemical speciation in mine soils. Chemosphere 103:164–171. https://doi.org/10.1016/j.chemosphere.2013.11.055
Shi WQ, Chen QW, Zhang JY, Liu DS, Yi QT, Chen YC, Ma HH, Hu LM (2020) Nitrous oxide emissions from cascade hydropower reservoirs in the upper Mekong River. Water Res 173:8. https://doi.org/10.1016/j.watres.2020.115582
Sullivan P, Taylor KG (2003) Sediment and porewater geochemistry in a metal contaminated estuary, Dulas Bay, Anglesey. Environ Geochem Health 25:115–122. https://doi.org/10.1023/a:1021233923423
Sun Q, Ding SM, Wang Y, Xu L, Wang D, Chen J, Zhang CS (2016) In-situ characterization and assessment of arsenic mobility in lake sediments. Environ Pollut 214:314–323. https://doi.org/10.1016/j.envpol.2016.04.039
Sun XS, Fan DJ, Liu M, Tian Y, Pang Y, Liao HJ (2018) Source identification, geochemical normalization and influence factors of heavy metals in Yangtze River Estuary sediment. Environ Pollut 241:938–949. https://doi.org/10.1016/j.envpol.2018.05.050
Tang WZ, Duan SH, Shan BQ, Zhang H, Zhang WQ, Zhao Y, Zhang C (2016) Concentrations, diffusive fluxes and toxicity of heavy metals in pore water of the Fuyang River, Haihe Basin. Ecotoxicol Environ Saf 127:80–86. https://doi.org/10.1016/j.ecoenv.2016.01.013
Tang WZ, Zhang H, Zhang WQ, Shan BQ, Zhu XL, Song ZX (2015) Dynamics of heavy metals and phosphorus in the pore water of estuarine sediments following agricultural intensification in Chao Lake Valley. Environ Sci Pollut Res 22:7948–7953. https://doi.org/10.1007/s11356-014-3945-x
Toevs, G., Morra, M.J., Winowiecki, L., Strawn, D., Polizzotto, M.L., Fendorf, S., 2008. Depositional influences on porewater arsenic in sediments of a mining-contaminated freshwater lake. Environmental Science & Technology 42, 6823–6829. https://yorku.80599.nethttps://doi.org/10.1021/es800937t.
Ullman WJ, Sandstrom MW (1987) Dissloved nutrient fluxes from the nearshore sediments of Bowling Green Bay, central Great-Barrier-Reef Lagoon (Australia). Estuar Coast Shelf Sci 24:289–303. https://doi.org/10.1016/0272-7714(87)90051-5
United States Environmental Protection Agency (USEPA) (2009) National recommended water quality criteria. US Environmental Protection Agency, Washington, DC
Varol M (2019) Arsenic and trace metals in a large reservoir: seasonal and spatial variations, source identification and risk assessment for both residential and recreational users. Chemosphere 228:1–8. https://doi.org/10.1016/j.chemosphere.2019.04.126
Wang C, Liu SL, Zhao QH, Deng L, Dong SK (2012) Spatial variation and contamination assessment of heavy metals in sediments in the Manwan Reservoir, Lancang River. Ecotoxicol Environ Saf 82:32–39. https://doi.org/10.1016/j.ecoenv.2012.05.006
Wang C, Yao Y, Wang PF, Hou J, Qian J, Yuan Y, Fan XL (2016) In situ high-resolution evaluation of labile arsenic and mercury in sediment of a large shallow lake. Sci Total Environ 541:83–91. https://doi.org/10.1016/j.scitotenv.2015.09.037
Wen SF, Shan BQ, Zhang H (2012) Metals in sediment/pore water in Chaohu Lake: distribution, trends and flux. J Environ Sci 24:2041–2050. https://doi.org/10.1016/s1001-0742(11)61065-6
Wu ZH, Jiao LX, Wang SR, Xu YZ (2016) Multi-metals measured at sediment-water interface (SWI) by diffusive gradients in thin films (DGT) technique for geochemical research. Arch Environ Contam Toxicol 70:429–437. https://doi.org/10.1007/s00244-015-0184-1
Xiao X, Long J, Zhang R, Chen J, Zou Y, Wu Q, Wu J (2019) Diffusion fluxes of heavy metals at the sediment-water interface during summer and winter from Aha Reservoir, Guiyang. Chin J Ecol 38:1508–1519
Xu DY, Gao B, Peng WQ, Qu XD, Zhang M, Wang JK (2019) Novel insights into Pb source apportionment in sediments from two cascade reservoirs, North China. Sci Total Environ 689:1030–1036. https://doi.org/10.1016/j.scitotenv.2019.06.368
Yuan S, Zhang W, Zheng B (2014) Heavy metal contaminant distribution features and the diffusion flux estimation in the sediments of Shahe Reservoir, Beijing. J Saf Environ 14:244–249 ((In Chinese with English abstract))
Zeng J, Han GL, Yang KH (2020) Assessment and sources of heavy metals in suspended particulate matter in a tropical catchment, northeast Thailand. J Clean Prod 265:121898. https://doi.org/10.1016/j.jclepro.2020.121898
Zhao QH, Liu SL, Deng L, Dong SK, Wang C (2013) Longitudinal distribution of heavy metals in sediments of a canyon reservoir in Southwest China due to dam construction. Environ Monit Assess 185:6101–6110. https://doi.org/10.1007/s10661-012-3010-5
Zhao, Z.J., Li, S.H., Xue, L.L, Liao, J., Zhao, J.J., Wu, M., Wang, M.G., Sun, J., Zheng, Y., Yang, Q., 2020. Effects of dam construction on arsenic mobility and transport in two large rivers in Tibet, China. Science of The Total Environment, 140406 https://doi.org/10.1016/j.scitotenv.2020.140406
Zhu XL, Shan BQ, Tang WZ, Li SS, Rong N (2016) Distributions, fluxes, and toxicities of heavy metals in sediment pore water from tributaries of the Ziya River system, northern China. Environ Sci Pollut Res 23:5516–5526. https://doi.org/10.1007/s11356-015-5709-7
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This work was supported by National Natural Science Foundation of China (Nos. 41673137, 41273146) and State Key Laboratory of Environmental Geochemistry (SKLEG2019713).
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Zhenjie Zhao: conceptualization, resources, formal analysis, writing — original draft, writing — review and editing; Shehong Li: conceptualization, supervision, writing — original draft, writing — review and editing; Shilu Wang: resources; Jie Liao: formal analysis; Weiqi Lu: resources; Di Tan: resources; Dan Yang: resources.
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Zhao, Z., Li, S., Wang, S. et al. Heavy metal characteristics in porewater profiles, their benthic fluxes, and toxicity in cascade reservoirs of the Lancang River, China. Environ Sci Pollut Res 29, 36013–36022 (2022). https://doi.org/10.1007/s11356-022-18652-x
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DOI: https://doi.org/10.1007/s11356-022-18652-x