ISSN: 2354-0575 H I E N TRANG N H I E M DAU THAI HUYEN K H O A I C H A U , T I N H H U N G Y ^ N ACTUAL SITUATION O F WASTE O I L P O L L U T I O N EV KHOAI CHAU DISTRICT, HUNG Y E N P R O V I N C E Phan Thi Uyln Nhung, L l T h a n h Huy, Nguyin Vigt Diing Truang Dgt hpc Suphgm Ky thudt Hung Yen Tom tat: , -, - • u