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Fig. 4 | Malaria Journal

Fig. 4

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. 4

Comparison of IRS concentrations between March and June by operator. The average residual pesticide concentration from spray operators is presented for the March and June IRS operations. The solid lines represent operators that were either below the recommended level and improved performance to meet the 0.5 g/m2 dose (left, blue), or those that met the 0.5 g/m2 dose and decreased performance to below the 0.5 g/m2 dose (right, red). Dotted lines represent operators either increased (left, blue), or decreased concentration (right, red) between operations that maintained the minimum dose of 0.5 g/m2 on both operations

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