Risk assessment of human exposure to lead and cadmium in maize grains cultivated in soils irrigated either with low-quality water or freshwater
| Autor: | Gomaa N. Abdel-Rahman, Essam M. Saleh, Magdy R. Samak, Yahia H. Abu-Sree, Adel S. El-Hassanin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Health
Toxicology and Mutagenesis chemistry.chemical_element Sewage Food contamination 010501 environmental sciences Toxicology 01 natural sciences Crop Industrial wastewater treatment 03 medical and health sciences 0302 clinical medicine lcsh:RA1190-1270 Maize grains lcsh:Toxicology. Poisons 0105 earth and related environmental sciences ComputingMethodologies_COMPUTERGRAPHICS Risk assessment Cadmium business.industry Regular Article chemistry Agronomy Lead Agriculture Soil water Environmental science business 030217 neurology & neurosurgery Groundwater Food contaminant |
| Zdroj: | Toxicology Reports Toxicology Reports, Vol 7, Iss, Pp 10-15 (2020) |
| ISSN: | 2214-7500 |
| Popis: | Graphical abstract Highlights • Levels of lead and cadmium in agriculture soil were affected by its levels in irrigation water. • Levels of lead and cadmium in maize grians irrigated with low-quality water were higher than that irrigated with freshwter (about 19-30 folds). • Levels of Pb and Cd concentrations in maize grains irrigated with low-quality water were above the permissible limits as 0.2 and 0.1 mg kg-1, respectively according to WHO/FAO. • The determined HRI values for both maize grains irrigated with low-quality water and freshwater were Maize is the third important cereal crop after wheat and rice, especially in Egyptian villages. It is used in baking as a substitution component in wheat products and a main component in snacks for children. The target of this study was to estimate the risk assessment of lead (Pb) and cadmium (Cd) in maize grains cultivated in the agricultural soil irrigated by the contaminated water in comparison with that irrigated by freshwater. Lead (Pb) and cadmium (Cd) levels in irrigation water, soils and maize grains collected from different sites in Egypt were determined using ICP-OES. The studied samples were collected from 5 agricultural sites irrigated with freshwater (Nile River water and groundwater) as well as 4 agricultural sites irrigated with low-quality water (contaminated by sewage and industrial wastewater). Results exhibited that the levels of Pb and Cd in soil and maize grains were significantly affected by their levels in irrigation water; where, the levels of Pb and Cd in soil and maize grains irrigated by low-quality water possessed the multiple concentrations in comparison with those irrigated by freshwater. Specific water sources such as Kafr-Dokhmais and Al-Nasiria sites, Kafr El-Sheikh governorate had the highest levels of metals in the samples of irrigation water, soil and maize grains (p |
| Databáze: | OpenAIRE |
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