Abstract
The heavy metal cadmium (Cd) is considered an important health risk, which may cause kidney dysfunction and affect the mineral metabolism of the skeleton (Elinder & Järup, 1996). Cereal flour is one of the main sources of this element for human intake. The content of Cd in wheat grain has been shown to vary with a number of factors. Important and well studied factors are the soil content of Cd and the pH of the soil (Eriksson, 1990). Both factors depend partly on the use of artificial fertilizers and other nutrient sources. Certain types of artificial phosphorus fertilizers constitute an important input of Cd to arable soils, which has contributed to a general increase in the cadmium content of wheat grain in some areas (Andersson & Bingefors, 1985). In addition, contamination of soils with Cd and other potentially toxic metals may occur for a number of reasons. Furthermore, the geological mother material of the soil may strongly influence the content of Cd in the soil (Söderström, 1995). Less attention has, however, been paid to the importance of atmospheric factors affecting the flux of Cd from soil to the cereal grain, although the possible importance of rainfall and evapotranspiration has been discussed by, for instance, Andersson & Bingefors (1985) and Eriksson et al. (1990).
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Pleijel, H., Danielsson, H., Gelang, J., Selldén, G. (2000). Effects of Transpiration, Carbon Dioxide and Ozone on the Content of Cadmium and Zinc in Spring Wheat Grain. In: Yunus, M., Singh, N., de Kok, L.J. (eds) Environmental Stress: Indication, Mitigation and Eco-conservation. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9532-2_19
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DOI: https://doi.org/10.1007/978-94-015-9532-2_19
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