Dahal, BM; Fuerhacker, M; Mentler, A; Karki, KB; Shrestha, RR; Blum, WE; .
(2008):
Arsenic contamination of soils and agricultural plants through irrigation water in Nepal.
Environ Pollut. 2008; 155(1):157-163
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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)). (C) 2007 Elsevier Ltd. All rights reserved.