Phenylurea herbicides, first marketed in the mid-20 th century, have become one of the most important classes of herbicides and have been widely used for controlling both annual grasses and broad-leaf weeds. With the continuous application of phenylurea herbicides, the residue of these herbicides in the environment was beyond the threshold concentration imposed by legislation, and their environmental hazards gradually became more and more serious. Thus, the environmental behaviors of phenylurea herbicides, ...