Steroid hormone concentrations normalized to dry weight or total nitrogen content in the two studied biogas digestates (standard deviations, n ¼ 3). BG1 is a mesophilic
(37 C) biogas facility with 95% swine manure and 5% alcohol industry wastes as input source. BG2 is a thermophilic (52 C) plant using 75e80% swine manure, 10e20%
slaughterhouse and 5e10% restaurant wastes as input.