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  • Title: Arsenic contamination of soils and agricultural plants through irrigation water in Nepal.
    Author: Dahal BM, Fuerhacker M, Mentler A, Karki KB, Shrestha RR, Blum WE.
    Journal: Environ Pollut; 2008 Sep; 155(1):157-63. PubMed ID: 18068879.
    Abstract:
    This study monitored the influence of arsenic-contaminated irrigation water on alkaline soils and arsenic uptake in agricultural plants at field level. The arsenic concentrations in irrigation water ranges from <0.005 to 1.014 mg L(-1) where the arsenic concentrations in the soils were measured from 6.1 to 16.7 mg As kg(-1). The arsenic content in different parts of plants are found in the order of roots>shoots>leaves>edible parts. The mean arsenic content of edible plant material (dry weight) were found in the order of onion leaves (0.55 mg As kg(-1))>onion bulb (0.45 mg As kg(-1))>cauliflower (0.33 mg As kg(-1))>rice (0.18 mg As kg(-1))>brinjal (0.09 mg As kg(-1))>potato (<0.01 mg As kg(-1)).
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