industrial pollution and food safety in kigali, rwanda

نویسندگان

a. etale

d.c. drake

چکیده

we determined the concentrations of lead and cadmium in edible parts of colocasiaesculenta,amaranthusspp. and ipomoea batata cultivated on farms in industrially polluted sections of nyabugogomarsh (kigali, rwanda) and quantified metal intake by consumers of these crops. we report that metalconcentrations in crops were within eu limits. the highest metal concentrations were found in amaranthusspp. leaves (lead = 0.31 mg/kg and cadmium = 0.03 mg/kg) and the lowestin i. batata (lead = 0.02 mg/kg and cadmium = 0.01 mg/kg). conversely, metal intake through these crops by adults in a surveyed community exceeded thresholds prescribed by the world health organization (who). based on crop consumption quantities, dietary lead intake by adults exceeded the recommended maximum by as much as seven and four orders of magnitude through amaranthusspp and c. esculenta,respectively. cadmium intake exceeded the who recommended maximum by two (amaranthusspp and c. esculenta)and three (i. batata) orders of magnitude.

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عنوان ژورنال:
international journal of environmental research

ناشر: university of tehran

ISSN 1735-6865

دوره 7

شماره 2 2013

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