Figure 17From: Importance of factors determining the effective lifetime of a mass, long-lasting, insecticidal net distribution: a sensitivity analysisDensity of insecticide concentration over time, with all parameters at central values. Three dimensional plot with the proportional distribution (density) of nets over categories of insecticide concentration in 10 mg.m-2 intervals, with lines at category mid-points. At time zero, the insecticide concentration is Gaussian distributed over the nets with mean 68.4 and standard deviation 14, but as the insecticide decays over time, the distribution is no longer Gaussian due to heterogeneity in the insecticideDecay rate. After 20 years, 77% of the nets has a concentration of 0-10 mg.m-2.Back to article page