[en] Soils irrigated with raw wastewater for many years accumulate trace metals, especially in the surface horizon. We do not know, however, to what extent the metals migrate down the profile and whether they accumulate in deeper horizons. We assessed the migration of trace metals in the suburbs of Paris where market gardens had been irrigated with wastewater for more than 100 years. Within a soil series, we compared metals in the polluted soils with those of a reference soil of the same kind. We sampled by horizons three representative Luvisol profiles in the irrigated area and a fourth profile selected as a reference just outside the irrigated area. Large quantities of Zn, Pb, Cd and Cu appeared to have accumulated in the topsoil, at the base of which concentrations diminished markedly. There appeared to be appreciable migration into the subsoil only at the most intensely irrigated site. By relating the total trace metal contents to the total iron contents we could detect anomalous values and identify migration into the subsurface horizons more sensitively. This approach was tested first with the endogenous metal Cr, then with metal pollutants. We showed that Zn, Pb, Cd and Cu migrated downwards in all three irrigated soils.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Lamy, Isabelle; INRA Versailles > Unité de Science du Sol
van Oort, Folkert; INRA Versailles > Unité de Science du Sol
AFNOR1996. Qualité des sols. Recueil de normes françaises. AFNOR, Paris.
Baize, D. 1997. Teneurs totales en éléments traces métalliques dans les sols (France). INRA Éditions, Paris.
Baize, D. & Girard, M.C. 1998. A sound reference base for soils: the Référentiel Pédologique. INRA Éditions, Paris.
Baize, D., Lamy, I., van Oort, F., Dère, C., Chaussod, R., Sappin-Didier, V. et al. 2002. 100 years spreading of urban wastewater on market-garden soils close to Paris (France): subsequent impacts and hazards. CD-Rom Transactions 17th World Congress of Soil Science, 14-21 August, Bangkok, Thailand, 204, 1-10.
Bourennane, H., Dère, C., Lamy, I., Cornu, S., Baize, D., van Oort, F. & King, D. 2005. Enhancing spatial estimates of metal pollutants in raw wastewater irrigated fields using a topsoil organic carbonmap predicted from aerial photography. Science of the Total Environment, in press.
Chen, Y., Wang, C., Wang, Z. & Huang, S. 2004. Assessment of the contamination and genotoxicity of soils irrigated with wastewater. Plant and Soil, 261, 189-196.
FitzPatrick, E. 1970. A technique for the preparation of large thin sections of soils and unconsolidated material. In: Micromorphological Techniques and Applications (eds D.A. Osmond & P. Bullock), pp. 3-13. Technical Monograph 2, Soil Survey of England and Wales, Rothamsted Experimental Station, Harpenden.
Flores, L., Blas, G., Hernandez, G. & Alcala, R. 1997. Distribution and sequential extraction of some heavy metals from soils irrigated with wastewater from Mexico city. Water, Air and Soil Pollution, 98, 105-117.
Haiyan, W. & Stuanes, A.O. 2003. Heavy metal pollution in air water soil plant system of Zhuzhou city, Hunan province, China. Water, Air and Soil Pollution, 147, 79-107.
Jiries, A.G., Al Nasir, F.M. & Besse, F. 2002. Pesticide and heavy metal residue in wastewater, soil and plants in wastewater disposal site near Al-Lajoun Valley, Karak/Jordan. Water, Air and Soil Pollution, 133, 97-107.
Lamy, I., Denaix, L., Chaussod, R., Schwartz, C., Baize, D. & Bermond, A. 2004. Etude d'un secteur agricole pollué par des épandages d'eaux usées: bilan environnemental et possibilités de reconversions végétales. In: Rapport final, document de synthèse, pp. 1-33. Unité de Science du Sol, INRA, Versailles.
Manceau, A., Lanson, B., Schlegel, M.L., Hargé, J.-C., Musso, M., Eybert-Bérard, L. et al. 2000. Quantitative Zn speciation in smeltercontaminated soils by EXAFS spectroscopy. American Journal of Science, 300, 289-343.
McBride, M.B., Richards, B.K., Steenhuis, T., Russo, J.J. & Sauvé, S. 1997. Mobility and solubility of toxic metals and nutrients in soil fifteen years after sludge application. Soil Science, 162, 487-500.
Nan, Z., Zhao, C., Li, J., Chen, F. & Sun, W. 2002. Relations between soil properties and selected heavy metal concentrations in spring wheat (Triticum aestivum L.) grown in contaminated soils. Water, Air and Soil Pollution, 133, 205-213.
Richards, B.K., Steenhuis, T.S., Peverly, J.H. & McBride, M.B. 1998. Metal mobility at an old, heavily loaded sludge application site. Environmental Pollution, 99, 365-377.
Schalscha, B. & Ahumada, I. 1998. Heavy metals in rivers and soils of central Chile. Water Science Technology, 37, 251-255.
Schirado, T., Vergara, I., Schalscha, E.B. & Pratt, P.F. 1986. Evidence for movement of heavy metals in a soil irrigated with untreated wastewater. Journal of Environmental Quality, 15, 9-12.
Shahalam, A., Abu Zahra, B.M. & Jaradat, A. 1998. Wastewater irrigation effect on soil, crop and environment: a pilot scale study at Irbid, Jordan. Water, Air and Soil Pollution, 106, 425-445.
Tarchitzky, J., Golobati, Y., Keren, R. & Chen, Y. 1999. Wastewater effects on montmorillonite suspensions and hydraulic properties of sandy soils. Soil Science Society of America Journal, 63, 554-560.
Van Oort, F., Jongmans, A.G., Citeau, L., Lamy, I. & Chevallier, P. 2005. Microscale Zn and Pb distribution patterns in subsurface soil horizons: an indication for metal transport dynamics. European Journal of Soil Science. doi:10.1111/j.1365-2389.2005.00725.x
Yadav, R.K., Goyal, B., Sharma, R.K., Dubey, S.K. & Minhas, P.S. 2002. Post-irrigation impact of domestic sewage effluent on composition of soils, crops and ground water - a case study. Environment International, 28, 481-486.