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Accumulation and interaction of fluoride and cadmium in the soil-wheat plant system from the wastewater irrigated soil of an oasis region in northwest China.
- Source :
-
Science of the Total Environment . Oct2017, Vol. 595, p344-351. 8p. - Publication Year :
- 2017
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Abstract
- Contamination of agricultural soil with high concentrations of fluorine (F) and cadmium (Cd) have raised significant concerns regarding their impacts on human health but the relationship between F and Cd in soil-wheat plant system in an oasis region has not been investigated. This paper aims to study the accumulation and interaction of F and total Cd in the soil-wheat plant system while considering the potential risks of F and Cd to human health. Soil samples were collected from wastewater-irrigated oasis regions, Dongdagou and Xidagou. The concentrations of total F (F T ) and Cd in soils from the Dongdagou and Xidagou stream basins were higher than those in uncontaminated soils (F = 270.25 mg kg − 1 , Cd = 0.10 mg kg − 1 ). Water-soluble F (F W ) and F T contributed to F concentrations in underground parts of wheat when the samples were collected from Dongdagou, however, F in aboveground parts may be mainly influenced by atmospheric F. The main source of F in wheat plants collected from the Xidagou site may be mainly controlled by atmospheric F, including aboveground and underground parts. Soils in the studied region pose a potentially severe health risk for humans via bioaccumulation of toxic metals through the food chain, and therefore, are not suitable for planting wheat meant for human consumption. Cd had a significantly negative effect on F accumulation in wheat root from Dongdagou ( P < 0.01). This field study provided F-Cd interactions that occur in soils from an oasis region at environmentally relevant concentrations. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00489697
- Volume :
- 595
- Database :
- Academic Search Index
- Journal :
- Science of the Total Environment
- Publication Type :
- Academic Journal
- Accession number :
- 122799565
- Full Text :
- https://doi.org/10.1016/j.scitotenv.2017.03.288