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Distributions and risks of Cu, Cd, Pb and Zn in soils and rice in the North River Basin, South China

  • Jing BAI (a1) (a2), Wenyan LI (a1), Yulong ZHANG (a1), Ling XIAO (a1), Weisheng LU (a1) and Yongtao LI (a1)...


As the largest industrial and population centre in China, the Pearl River Delta is facing a growing threat of heavy metal pollution from local mining and power industries. This study investigates the distribution and potential health risks of copper (Cu), cadmium (Cd), lead (Pb) and zinc (Zn) in paddy soils and rice at four typical sites. The Nemerow synthetic pollution index (PN) of soils from Fogang, Dabao Mountain, Shaoguan and Lechang were 8.40, 9.10, 4.64 and 10.28, respectively, indicating serious pollution at all four sampling sites. The average concentrations of Cu, Cd, Pb and Zn in rice grains were 2.23, 10.98, 29.84 and 1.62 times their corresponding maximum allowable levels, indicating potential health risks to humans. Cd has greater bioavailability because of its high mobility from soil to roots, and its subsequent transfer to grains. Pb mainly accumulates in roots because of its lower translocation rate from roots to grains. The greatest health risk index for Cd and Pb for adults and children was at the Shaoguan site, probably due to pollution from atmospheric deposition. Cd and Pb had greater health risk indices than Cu and Zn at almost all sites, indicating a major health risk to local people.


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Ackah, M., Anim, A. K., Gyamfi, E. T., Zakaria, N., Hanson, J., Tulasi, D., Enti-Brown, S., Saah-Nyarko, E., Bentil, N. O. & Osei, J. 2014. Uptake of heavy metals by some edible vegetables irrigated using wastewater: a preliminary study in Accra, Ghana. Environmental Monitoring and Assessment 186, 621634.
Bai, J. M. & Liu, X. P. 2014. Heavy metal pollution in surface soils of Pearl River Delta, China. Environmental Monitoring and Assessment 186, 80518061.
Banat, K. M., Howari, F. M. & Al-Hamad, A. A. 2005. Heavy metals in urban soils of central Jordan: should we worry about their environmental risks? Environmental Research 97(3), 258273.
Ben Fredj, F., Wali, A., Khadhraoui, M., Han, J., Funamizu, N., Ksibi, M. & Isoda, H. 2014. Risk assessment of heavy metal toxicity of soil irrigated with treated wastewater using heat shock proteins stress responses: case of El Hajeb, Sfax, Tunisia. Environmental Science and Pollution Research 21, 47164726.
Bošković-Rakočević, L., Milivojević, J., Milošević, T. & Paunović, G. 2014. Heavy metal content of soils and plum orchards in an uncontaminated area. Water, Air, & Soil Pollution 225, 113.
Bosso, S. T. & Enzweiler, J. 2008. Bioaccessible lead in soils, slag, and mine wastes from an abandoned mining district in Brazil. Environmental Geochemistry and Health 30, 219229.
Cao, S. Z., Duan, X. L., Zhao, X. G., Ma, J., Dong, T., Huang, N., Sun, C. Y., He, B. & Wei, F. S. 2014. Health risks from the exposure of children to As, Se, Pb and other heavy metals near the largest coking plant in China. Science of The Total Environment 472, 10011009.
Chang, C. Y., Yu, H. Y., Chen, J. J., Li, F. B., Zhang, H. H. & Liu, C. P. 2014. Accumulation of heavy metals in leaf vegetables from agricultural soils and associated potential health risks in the Pearl River Delta, South China. Environmental Monitoring and Assessment 186(3), 15471560.
Chen, H. Y., Teng, Y. G., Lu, S. J., Wang, Y. Y. & Wang, J. S. 2015. Contamination features and health risk of soil heavy metals in China. Science of The Total Environment , 143153.
Chen, Y., Huang, B., Hu, W. Y., Weindorf, D. C., Liu, X. X. & Niedermann, S. 2014. Assessing the risks of trace elements in environmental materials under selected greenhouse vegetable production systems of China. Science of The Total Environment , 11401150.
Cheng, J. L., Shi, Z. & Zhu, Y. W. 2007. Assessment and mapping of environmental quality in agricultural soils of Zhejiang Province, China. Journal of Environmental Sciences 19, 5054.
Cheng, S. 2003. Heavy metal pollution in China: origin, pattern and control. Environmental Science and Pollution Research 10(3), 192198.
Fernandez-Turiel, J. L., de Carvalho, W. & Cabanas, M. 1994. Mobility of heavy metals from coal fly ash. Environmental Geology 23, 264270.
Gimbert, F., Mench, M., Coeurdassier, M. L., Badot, P. & de Vaufleury, A. 2008. Kinetic and dynamic aspects of soil–plant–snail transfer of cadmium in the field. Environmental Pollution 152, 736745.
Guangdong Statistics Bureau. 2015. Statistical yearbook of Guangdong, China. Beijing: China Statistics.
Harmanescu, M., Alda, L. M., Bordean, D. M., Gogoasa, I. & Gergen, I. 2011. Heavy metals health risk assessment for population via consumption of vegetables grown in old mining area; a case study: Banat County, Romania. Chemistry Central Journal 5, 6474.
Hettiarachchi, G. M., Ryan, J. A., Chaney, R. L. & La Fleur, C. M. 2003. Sorption and desorption of cadmium by different fractions of biosolids-amended soils. Journal of Environmental Quality 32, 16841693.
Hu, Y. N., Liu, X. P., Bai, J. M., Shih, K. M., Zeng, E. Y. & Cheng, H. F. 2013. Assessing heavy metal pollution in the surface soils of a region that had undergone three decades of intense industrialization and urbanization. Environmental Science and Pollution Research 20, 61506159.
Jallad, K. N. 2015. Heavy metal exposure from ingesting rice and its related potential hazardous health risks to humans. Environmental Science and Pollution Research 22, 1544915458.
Joint FAO/WHO Expert Committee on Food Additives (JECFA). 1993. Toxicological evaluation of certain food additives and contaminants. WHO Technical Report Series, no. 837. Geneva: Joint FAO/WHO Expert Committee on Food Additives.
Kabata-Pendias, A. & Mukherjee, A. B. 2007. Trace elements from soil to human. Berlin: Springer.
Kachenko, A. & Singh, B. 2006. Heavy metals contamination in vegetables grown in urban and metal smelter contaminated sites in Australia. Water, Air, & Soil Pollution 169, 101123.
Kashem, A. & Singh, B. R. 1999. Heavy metal contamination of soil and vegetation in the vicinity of industries in Bangladesh. Water, Air, & Soil Pollution 115, 347361.
Khan, M. A., Islam, M. R., Panaullah, G. M., Duxbury, J. M., Jahiruddin, M. & Loeppert, R. H. 2010. Accumulation of arsenic in soil and rice under wetland condition in Bangladesh. Plant and Soil 333, 263274.
Kharlamova, E. N. & Val'Tseva, E. A. 2014. Assessment of the impact of environmental factors on the morbidity rate of respiratory and cardiovascular diseases in adolescents of the city of Samara. Gigiena i Sanitariia 93, 8791.
Kim, Y. Y., Yang, Y. Y. & Lee, Y. S. 2002. Pb and Cd uptake in rice roots. Physiologia Plantarum 116, 368372.
Kirkham, M. B. 2006. Cadmium in plants on polluted soils: effects of soil factors, hyperaccumulation, and amendments. Geoderma 137, 1932.
Komarnicki, G. J. K. 2005. Lead and cadmium in indoor air and the urban environment. Environmental Pollution 136, 4761.
Kuang, Y. W., Zhou, G. Y., Wen, D. Z. & Liu, S. Z. 2007. Heavy metals in bark of Pinus massoniana (Lamb.) as an indicator of atmospheric deposition near a smeltery at Qujiang, China. Environmental Science and Pollution Research 14, 270275.
Li, Q. S., Chen, Y., Fu, H. B., Cui, Z. H., Shi, L., Wang, L. L. & Liu, Z. F. 2012. Health risk of heavy metals in food crops grown on reclaimed tidal flat soil in the Pearl River Estuary, China. Journal of Hazardous Materials 227, 148154.
Li, Y. T., Becquer, T., Dai, J., Quantin, C. & Benedetti, M. F. 2009a. Ion activity and distribution of heavy metals in acid mine drainage polluted subtropical soils. Environmental Pollution 157, 12491257.
Li, Y. T., Rouland, C., Benedetti, M., Li, F. B., Pando, A., Lavelle, P. & Dai, J. 2009b. Microbial biomass, enzyme and mineralization activity in relation to soil organic C, N and P turnover influenced by acid metal stress. Soil Biology and Biochemistry 41, 969977.
Liu, C. P., Luo, C. L., Gao, Y., Li, F. B., Lin, L. W., Wu, C. A. & Li, X. D. 2010. Arsenic contamination and potential health risk implications at an abandoned tungsten mine, southern China. Environmental Pollution 158, 820826.
Liu, J., Zhang, X. H., Tran, H., Wang, D. Q. & Zhu, Y. N. 2011. Heavy metal contamination and risk assessment in water, paddy soil, and rice around an electroplating plant. Environmental Science and Pollution Research 18, 16231632.
Liu, J. G., Mei, C. C., Cai, H. & Wang, M. X. 2015. Relationships between subcellular distribution and translocation and grain accumulation of Pb in different rice cultivars. Water, Air, & Soil Pollution 226, 93.
Liu, J. L., Li, Y. L., Zhang, B., Cao, J. L., Cao, Z. G. & Domagalski, J. 2009. Ecological risk of heavy metals in sediments of the Luan River source water. Ecotoxicology 18, 748758.
Lu, Y., Gong, Z. T., Zhang, G. L. & Burghardt, W. 2003. Concentrations and chemical speciations of Cu, Zn, Pb and Cr of urban soils in Nanjing, China. Geoderma 115, 101111.
Luo, C. L., Liu, C. P., Wang, Y., Liu, X., Li, F. B., Zhang, G. & Li, X. D. 2011. Heavy metal contamination in soils and vegetables near an e-waste processing site, south China. Journal of Hazardous Materials 186, 481490.
Luo, Y., Liu, S., Fu, S. L., Liu, J. S., Wang, G. Q. & Zhou, G. Y. 2008. Trends of precipitation in Beijiang River Basin, Guangdong Province, China. Hydrological Processes 22, 23772386.
Mark, T. 1990. Tansley review No. 21 plant ion channels: whole-cell and single channel studies. New Phytologist 114, 305340.
McBride, M. B. 2007. Trace metals and sulfur in soils and forage of a chronic wasting disease locus. Environmental Chemistry 4(2), 134139.
Meharg, A. A., Norton, G., Deacon, C., Williams, P., Adomako, E. E., Price, A., Zhu, Y., Li, G. Zhao, F. J. & Mcgrath, S. 2013. Variation in rice cadmium related to human exposure. Environmental Science & Technology 47, 56135618.
Muehlbachova, G., Simon, T. & Pechova, M. 2005. The availability of Cd, Pb and Zn and their relationships with soil pH and microbial biomass in soils amended by natural clinoptilolite. Plant, Soil and Environment 51, 2633.
Neumann, R. B., St Vincent, A. P., Roberts, L. C., Badruzzaman, A. B. M., Ali, M. A. & Harvey, C. F. 2011. Rice field geochemistry and hydrology: An explanation for why groundwater irrigated fields in Bangladesh are net sinks of arsenic from groundwater. Environmental Science & Technology 45, 20722078.
Nishijo, M., Nakagawa, H., Morikawa, Y., Tabata, M., Senma, M., Miura, K., Takahara, H., Kawano, S., Nishi, M., Mizukoshi, K. & Et, A. 1995. Mortality of inhabitants in an area polluted by cadmium: 15 year follow up. Occupational and Environmental Medicine 52, 181184.
Omar, N. A., Praveena, S. M., Aris, A. Z. & Hashim, Z. 2015. Health risk assessment using in vitro digestion model in assessing bioavailability of heavy metal in rice: a preliminary study. Food Chemistry 188, 4650.
Pansu, M. & Gautheyrou, J. 2006. Handbook of soil analysis: mineralogical, organic and inorganic methods. Berlin and Heidelberg: Springer.
Pence, N. S., Larsen, P. B., Ebbs, S. D., Letham, D. L. D., Lasat, M. M., Garvin, D. F., Eide, D. & Kochian, A. L. V. 2000. The molecular physiology of heavy metal transport in the Zn/Cd hyperaccumulator Thlaspi caerulescens. Proceedings of the National Academy of Sciences 97, 49564960.
Pruvot, C., Douay, F., Herve, F. & Waterlot, C. 2006. Heavy metals in soil, crops and grass as a source of human exposure in the former mining areas. Journal of Soils and Sediments 6, 215220.
Qian, Y. Z., Chen, C., Zhang, Q., Li, Y., Chen, Z. J. & Li, M. 2010. Concentrations of cadmium, lead, mercury and arsenic in Chinese market milled rice and associated population health risk. Food Control 21, 17571763.
Qiu, Y., Guan, D. S., Song, W. W. & Huang, K. Y. 2009. Capture of heavy metals and sulfur by foliar dust in urban Huizhou, Guangdong Province, China. Chemosphere 75, 447452.
Quan, S. X., Yan, B., Lei, C., Yang, F., Li, N., Xiao, X. M. & Fu, J. M. 2014. Distribution of heavy metal pollution in sediments from an acid leaching site of e-waste. Science of The Total Environment 499, 349355.
Rahman, S. H., Khanam, D., Adyel, T. M., Islam, M. S., Ahsan, M. A. & Akbor, M. A. 2012. Assessment of heavy metal contamination of agricultural soil around Dhaka export processing zone (DEPZ), Bangladesh: implication of seasonal variation and indices. Applied Sciences 2, 584601.
Shu, W. S., Ye, Z. H., Lan, C. Y., Zhang, Z. Q. & Wong, M. H. 2001. Acidification of lead/zinc mine tailings and its effect on heavy metal mobility. Environment International 26, 389394.
Soil General Survey Office of Guangdong Province. 1993. Soils in Guangdong. Beijing: Science Press.
Sparks, D. L., Page, A. L., Helmke, P. A., Loeppert, R. H., Soltanpour, P. N., Tabatabai, M. A., Johnston, C. T. & Sumner, M. E. 1996. Methods of soil analysis. part 3-chemical methods. Madison, WI: Soil Science Society of America Inc.
United States Environmental Protection Agency (USEPA). 2002. Region 9, preliminary remediation goals. (accessed 10 December 2015).
Uraguchi, S. & Fujiwara, T. 2012. Cadmium transport and tolerance in rice: perspectives for reducing grain cadmium accumulation. Rice 5, 5.
Vega, F. A., Covelo, E. F., Andrade, M. L. & Marcet, P. 2004. Relationships between heavy metals content and soil properties in minesoils. Analytica Chimica Acta 524(1-2), 141150.
Waisberg, M., Joseph, P., Hale, B. & Beyersmann, D. 2003. Molecular and cellular mechanisms of cadmium carcinogenesis. Toxicology 192, 95117.
Wang, A. S., Angle, J. S., Chaney, R. L., Delorme, T. A. & Reeves, R. D. 2006a. Soil pH effects on uptake of Cd and Zn by Thlaspi caerulescens. Plant and Soil 281, 325337.
Wang, G., Su, M. Y., Chen, Y. H., Lin, F. F., Luo, D. & Gao, S. F. 2006b. Transfer characteristics of cadmium and lead from soil to the edible parts of six vegetable species in southeastern China. Environmental Pollution 144, 127135.
Wong, C. S. C., Li, X. D., Zhang, G., Qi, S. H. & Peng, X. Z. 2003. Atmospheric deposition of heavy metals in the Pearl River Delta, China. Atmospheric Environment 37, 767776.
Wong, S. C., Li, X. D., Zhang, G., Qi, S. H. & Min, Y. S. 2002. Heavy metals in agricultural soils of the Pearl River Delta, South China. Environmental Pollution 119, 3344.
Yang, Q. W., Lan, C. Y., Wang, H. B., Zhuang, P. & Shu, W. S. 2006. Cadmium in soil–rice system and health risk associated with the use of untreated mining wastewater for irrigation in Lechang, China. Agricultural Water Management 84, 147152.
Yoon, J., Cao, X., Zhou, Q. & Ma, L. Q. 2006. Accumulation of Pb, Cu, and Zn in native plants growing on a contaminated Florida site. Science of The Total Environment 368, 456464.
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. Environmental Pollution 159, 8491.
Zhang, L., Guo, S. & Wu, B. 2015. The source, spatial distribution and risk assessment of heavy metals in soil from the pearl river Delta based on the national multi-purpose regional geochemical survey. PLoS ONE 10, e132040.
Zhao, H. R., Xia, B. C., Fan, C., Zhao, P. & Shen, S. L. 2012. Human health risk from soil heavy metal contamination under different land uses near Dabaoshan Mine, Southern China. Science of The Total Environment 417, 4554.
Zhao, H. T. & Li, X. Y. 2013. Risk assessment of metals in road-deposited sediment along an urban–rural gradient. Environmental Pollution 174, 297304.
Zhou, J. M., Dang, Z., Cai, M. F. & Liu, C. Q. 2007. Soil heavy metal pollution around the Dabaoshan Mine, Guangdong Province, China. Pedosphere 17, 588594.
Zhuang, P., McBride, M. B., Xia, H., Li, N. & Li, Z. 2009. Health risk from heavy metals via consumption of food crops in the vicinity of Dabaoshan mine, South China. Science of The Total Environment 407, 15511561.
Zhuang, P. L. Z. A., Zou, B., Xia, H. P. & Wang, G. 2013. Heavy metal contamination in soil and soybean near the Dabaoshan mine, South China. Pedosphere 23, 298304.
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