nearly significantp = 0.067
Biovolumes of green algae increased significantly in the 10 mg·L −1 HP dose compared to the control [Figure 7B ; df = 2, Q (0, 10) = 6.81, p = 0.006], where the 2.5 mg·L −1 dose and the 5 mg·L −1 dose already showed substantial and nearly significant increased compared to the control biovolume [ df = 2, Q (0, 2.5) = 4.24, p = 0.067] and [ df = 2, Q (0, 5) = 4.38, p = 0.058], respectively.