Trace Metal Elements (Pb, Cd and As), 15N Nitrogen and Phosphorus Isotopes Accumulation in Three Varieties of Tomato from Conventional and Agro-Ecological Farming Systems in Burkina Faso
Tomato
is a market gardening product that plays an important nutritional and economic
role in Burkina Faso. However, the bad use of pesticides for its production
could have negative impacts consumers’ health. The objective of the present study was to assess the concentration of
trace metal elements (Pb, Cd and As), 15N
isotopes (NO2-, NO3-, NH4+) and
phosphorus (PO42-) in
tomatoes according to cultivation practices. Thus, three tomato varieties (Mongal F1, F1 Cobra 26 and Roma F1) were grown using organic and conventional production methods on 2
sites at Nongr Massom, (commune of Kadiogo province). The trace metal elements
were analyzed using atomic absorption spectrophotometry, the isotopes 15N (NO2-, NO3-, NH4+) and
phosphorus (PO43-) using
standardized methods. Tomatoes from conventional agriculture had higher levels
of trace metal elements (0.163
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