Page 73 - البيئة والتنمية المستدامة
P. 73
??????? ???????? ??????????
?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
???????? ????????Heavy metals??
???????? ??????? ??? ?????? ??????? ?????????? ???????? ?? ????? ??? ????
????? ????? ????? ????? ?? ????? ?????? ?????? ????????.??
????? ??????? ?????? ??? ??? ??????? ??? ???? ????? ?????? ??? ????????
???????? ?????? ????.??
?????? ?????? ??????? ??????? ?? ????? ???? ?? ??????? ????? ????????
??????? ?? ????????? ???? ??????? ????? ?????? ??? ?? ?????.??
????? ???? ??????? ??????? ?? ?????? ???????? ?????????? ???????? ?????????
???????? ??????? ?????? ????? ??????? ????????? ?????????? ???? ?????????
??????????
?????? ??????? ???? ?? ????? ?????? ?? ??????? ??? ????? ? ????? ? ???????.??
??????? ????????? ?????? ??????? ??????? ???
??????? ???? ???? ???????????? ??? ??????? ?•?
??????? ?????? ?•?
????? ?????? ?•?
???? ?????? ?•?
?•?
???? ?????? ?•?
???? ??????? ????????? ?????? ?•?
?????? ????? ???????.??
??65??
