Ahmed and Kurosawa 2017 - Arsenic in vegetables in an industrial area of Bangladesh
This study measured arsenic in irrigation water, soils, and vegetables in an agricultural area affected by industrial wastewater in Gazipur District, Bangladesh. It is routeable for vegetable arsenic evidence because it reports edible-crop concentrations by vegetable group.
Key numbers
- The study collected 27 vegetable samples from three areas, with five common vegetable types represented.
- Average arsenic concentrations in vegetables varied from 0.63 to 1.07 mg/kg dry weight by area.
- Taro root had the highest average arsenic concentration, ranging from 1.26 to 2.31 mg/kg.
- Helencha leaf ranged from 1.85 to 2.02 mg/kg.
- Root vegetables averaged 1.84 mg/kg arsenic.
- Leafy vegetables averaged 0.77 mg/kg arsenic.
- Fruit vegetables averaged 0.14 mg/kg arsenic.
- The authors report that root vegetables exceeded the FAO 1.0 mg/kg permissible limit cited in the paper, while leafy and fruit vegetables did not.
Methods
Vegetables were washed, separated into edible fractions, digested with concentrated nitric acid and hydrogen peroxide, and analyzed for arsenic. Values are reported on a dry-weight basis.
Implications
The source supports arsenic occurrence context for vegetables grown with contaminated irrigation water. It should not be pooled silently with ordinary retail-market vegetables because the exposure setting is an industrial wastewater-affected agricultural system.
Wiki pages this source may touch
- root-vegetables
- leafy-vegetables
- non-root-vegetables
- vegetables
- root-tuber-vegetables
- leafy-vegetables-other
- non-root-vegetables
- arsenic-total
Verification notes
The source reports arsenic as As without speciation, so this page routes it as total arsenic rather than inorganic arsenic.
Page history
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