Fig. 2From: Effect of irrigation water containing arsenic on elemental composition of bean and lettuce plants cultivated in calcareous sandy soilAs concentration in bean (a) and lettuce (b) plant parts at different As treatments: control, 0.1, 0.25, 0.5 mg L− 1 in the irrigation water. Different lowercase letter indicates significant differences among treatments in plant parts. Level of significance: p < 0.05. Bars indicate standard deviationBack to article page