Fig. 2.

Comparison of measured and predicted MS2 inactivation rate constants for stored urine, sludge and manure. For comparison, data from lab solutions (Decrey et al.;¹⁵ grey circles) are also shown. Values of k_pred were determined from eqn (3) and (4). The solid line represents a 1 : 1 relation between measurement and prediction (k_pred/k_obs = 1). Dashed lines indicate 80% and 120% of k_pred/k_obs (i.e., k_pred/k_obs = 0.8 and 1.2 respectively). The inset shows k_pred versus k_obs for different dilutions of urine. The urine : water ratio for each data point is indicated.