“Results showed that NRR time, measured at day 28, was significantly reduced (… < 0.05) after exposure to environmental concentrations of each pharmaceutical caffeine = 15 μg·L−1; carbamazepine = 1 μg·L−1; ibuprofen = 5 μg·L−1; and novobiocin = 0.1 μg·L−1) when compared with control organisms.”