Fig 1.
Map showing location of commercial mills, with points colored by sampling cluster.
Table 1.
Calendar of data collection visits for aflatoxin monitoring in ten urban areas.
Fig 2.
Number of samples of unique packaged maize flour brands collected, by round and mill location.
Table 2.
Total maize flour samples analyzed for aflatoxin contamination across all rounds, disaggregated by flour source.
Fig 3.
Distribution of total aflatoxin contamination levels in maize flour samples.
Note: samples with aflatoxin below the lower limit of detection are excluded from this figure.
Fig 4.
Mean aflatoxin contamination levels in maize flour samples, disaggregated by flour source.
Fig 5.
Share of maize flour samples exceeding the national regulatory standard for aflatoxin (>10ppb), disaggregated by flour source.
Fig 6.
Mean aflatoxin levels in packaged and informally processed maize flour, disaggregated by sampling round.
Fig 7.
Share of packaged and informally processed maize flour samples exceeding the national regulatory standard for aflatoxin (>10ppb), disaggregated by sampling round.
Fig 8.
Mean aflatoxin levels in packaged and informally processed maize flour, disaggregated by mill location.
Fig 9.
Share of packaged and informally processed maize flour samples exceeding the national regulatory standard for aflatoxin (>10ppb), disaggregated by mill location.
Fig 10.
Mean aflatoxin levels for packaged and informally processed maize flour, disaggregated by level of processing (Sampling Rounds 5 & 6).
Fig 11.
Share of packaged and informally processed maize flour samples exceeding the national regulatory standard for aflatoxin (>10ppb), disaggregated by level of processing (Sampling Rounds 5 & 6).
Table 3.
Relative levels of key micronutrients in whole maize vs. fortified flour (mg/kg).