Nuclear power plants produce:
a. radioactive waste that must be stored properly.
b. it is very impossible for a nuclear power plant to have no waste at all since lots of chemicals are used to create the process as it gives energy to other machines.
c. radioactive waste can not be released into local water supplies since the wastes are very radioactive and may cause mutation to the fishes and bioaccumulation which will affect humans as well.
d. it will also cause air pollution if the chemicals are not stored properly.