“…2,3 In recent decades, the emergence of steroid hormones in water resources received global attention because they can mimic or block the endogenous hormones at low concentrations of ng•l −1 , leading to a number of health problems, [4][5][6][7] such as obesity, lower sperm counts in men, testicular cancer, prostate cancer, ovarian cancer, breast cancer, etc. 8,9 Unfortunately, the steroid hormones have been detected in freshwater in different countries, such as America, Germany, Japan, Brazil and China. 5,8,10 As reported, these contaminants are mainly derived from the human and animal excretion or pharmaceutical industrial wastewater.…”