The ranking of environmental engineering major in Hohai University largely determines the difficulty of taking the college entrance examination in Hohai University, so many college entrance examination students and parents will know the ranking of environmental engineering major in Hohai University before choosing to apply for the environmental engineering major in Hohai University. On the other hand, many college entrance examination students want to apply for a university with a very good academic atmosphere, so the ranking data of environmental engineering major in Hohai University is very important.