?? PFOS???????????:????
????:1??????????:??????
2?????300?3??????
3???????????
4???????????
5?98?????
???????,????????????,??,?????????????
???????????????????:??????????,????????????,??,?????????????
???????????????????:???????:1??????????:??????
2?????300?3??????
3???????????
4???????????
5?98?????
???????,????????????,??,?????????????
???????????????????:???