VIEN 0 ! A LY VIEN KHOCN VIET NAM KOE e i A LY VIET NAM NGUYEN NHAN GAY 6 NHIEM MOI TRU''''ONG NU''''OC LU''''U VU''''C SONG HUONG Nguyen Vdn Mudn , Bd Nam'''' SUMMARY Not only Huong river basin has important purl w[.]
VIEN ! A LY - VIEN K H O C N VIET NAM KOE e i A LY VIET NAM NGUYEN NHAN GAY NHIEM MOI TRU'ONG NU'OC LU'U VU'C SONG HUONG Nguyen Vdn Mudn , Bd Nam' SUMMARY Not only Huong river basin has important purl with Thua Thien flue province but also with centre of Viet Num ureas und Viet Nam At the moment fluong river basin has high pressures: population growth, urbanise, socio-economic actiyities, specific is tourism und service uclivities which made general environmenlul and water environinentul of Huong river basin hecuin evil und Beside thut there are many purls of Ihiong river hus polulted wurning.Cuuse of LLiiong river bus in wuter environmenlul polulted hud determined by waste ^vuter resources from urbun and resident ureas, industry und agrilculure IVaste water resources from enterprises, product, service, uhatloirs, pesticide, untibiotic for uquiciilure will rivers polutled danger increase and day if human have noi put forward effective prevent solutions I MO DAU Luu vuc sdng Fluo'ng cd dien tich khoiing 3.223 km^ chiem xap xi 64% dien tich tu nhien linh Thira 44iicn Hue, thugc dja biin ciia 134 xii, phudng tren tdng sd 152 xa, phudng ciia huyen vii Ihanh phd eiia linh Luu VUC ' sdng Fluong cd vai trd quan trgng khdng chi vdi tinh Thira Thien Flue mil vdi khu vuc mien Trung va ca nude, vi nd cd tiii nguyen thien nhien phong plui, cd cac he sinh thiii dac thii, dac biet cd nhiing gia trj Ijch sir, van hoii, tam linh dugc Qudc te thira nhan Song bien niiy luu vuc sdng Huong dang chiu iip lire manh ciia sir gia lang diin sd, qua trinh dd thj boa, cac boat ddng kinh te - xa hdi, diic biet lii boat ddng du Ijch, djch vu dii liim cho mdi trudng ndi chung vii mdi trudng nude tren luu viic sdng Fluong ndi rieng cang xiu di, nhieu doan sdng bj d nhicni tdi nuic biio ddng Cimg vdi xu IhS phiit IriSn kinh t& - xii bdi, dudi tac ddng ciia cac yen td tu nhien va hoat ddng cua ngudi, tinh hinh dien bien mdi trudng nude luu vuc sdng Huang da niiy sinh hang loai ciic vin dh d nhi^m dac biet lii d nhiem ngudn nird'c Trudc \eu ciu phiit trien ben viing kinh te - xii bdi cho thimh phd Hue ndi rieng, cho luu vuc sdng Fluong Vii tinh Thira Thien Hue ndi chung, tbi viec xiic djnh nguyen nhiin gay d nhieni moi trudng nude luu virc sdng Huong cd y ngiiia khoa hgc vii thuc lien to Idn II TINH TRANG MOI TRU'OXG NUOC LUU VUC SONG HUONG 2.L Mdi trudng nude cac sdng luu vuc sdng Huong Theo kk quii nghien cuu ve mdi trudng nude ciic sdng luu virc sdng Huang [2] [4| [5] [7] cho thiy ham lugng mudi nude kha cao vao miia kiet tinh trang " Vien Diet ly, Vien Khoa hoc&Cong nghe ViCfi Nam '' SaKhoa hoc vd Cong nghe linh Thira Thien Hue Hgi nghi Khoa hgc Dia ly Todn quoc idn th&o - Hd Ngi, 2010 339 VIEN BIA LY - VIEN KHfc^CN VIET NAM HOI P I A LY VIET NAM nhiem man mot so nai cd ham lugng cac chat huu ca Idn, mat vi khuiin gay bcnh va ham lugng phot cao Su xam nhap man tu' bien vao sdng Fluong tang nhanh vao miia kiet nhat la tir Ouang den thiing nam, dao dong tir 17 mg/l - 12.650 mg/1 Tai niia ba Tuin, vao miia kiet, nude sdng Huong bi nhiem miin d tang nude sau 0.3m man nim khoang 11 7-394 mg/1, d tang sau 3m man nam khoang 994 - 2.294 mg/1 va d tang sau 5m man len tdi 1.170 - 7.570 mg/1 Ngudn nude song Huone bj nhiem man lam cho ngudn nude cac chi luu ciia nd nhu sdng Ddng,Ba, sdng Bach Yen sdng Ke Van va sdng Lgi Ndng cung bj nbiem man theo [5] Hien tugng d nhiem chat huu ca cua nude sdng Huong chua den mire dang lo ngai Chi sd COD tang dan tir nga ba Tuan (