Skip to main content


Fig. 1 | Malaria Journal

Fig. 1

From: Improving the performance of spray operators through monitoring and evaluation of insecticide concentrations of pirimiphos-methyl during indoor residual spraying for malaria control on Bioko Island

Fig. 1

Distribution of IRS pesticide concentrations from household surfaces. Histogram of residual concentration of pesticide sampled from 119 households after organized malaria elimination efforts. Concentrations sampled from surfaces (n = 714) were determined by HPLC and presented with reference lines for samples below 0.5 g/m2 (sup-optimal dose) and above 1.5 g/m2 (no additional benefit)

Back to article page