New Microsoft Office Word Document

New Microsoft Office Word Document - 1. V n nhi m mi tr ng...

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Unformatted text preview: 1. V n nhi m mi tr ng l u v c sng y: L u v c sng Nhu - y, c di n tch 8657,21km 2 , dn s 8.849.991 ng i, bao g m 4 t nh: H Ty, H Nam, Nam nh, Ninh Bnh v m t ph n c a TP. H N i. L u v c sng Nhu - y l m t trong 3 l u v c sng ang b nhi m nghim tr ng n c ta. K t qu nghin c u c a nhi u ti nghin c u trong v ngai n c, l u v c sng Nhu y nhi m ch y u do ph i ti p nh n ngu n n c th i, ch t th i r n t khu v c H N i, H Ty. T i cc con sng trong n i thnh H N i, cc thng s o c u v t nhi u l n tiu chu n cho php i v i n c m t (TCVN 5942-1985, lo i B), th m ch cn v t c tiu chu n cho php i v i n c th i sinh ho t (TCVN 6772-2000, m c IV). K t qu t quan tr c cu i nm 2005 c a B Ti nguyn v Mi tr ng cho th y gi tr DO t r t th p, gi tr CDO v t 7-8 l n, BOD5 v t 7 l n . . . Hi n sng y b nhi m c c b v i m c ngy cng gia tng, c bi t n c sng cn ch u nh h ng c a nhi m sng Nhu , ch t l gn n c sng di n bi n ph c t p v m c nhi m t ng o n sng r t khc bi t. 2. nh gi th c tr ng qu n l ch t th i r n l u v c sng y Theo k t qu i u tra kh o st t i cc t nh t 1 (thng 6,7/2007) do nhm nghin c u tr ng HKT th c hi n, t 2 (10/2007) do nhm nghin c u Tr ng i h c Ki n Trc ph i k t h p v i nhm nghin c u Trung Tm Mi tr ng - Vi n QH th V Nng thn B Xy d ng th c hi n cho th y: T ng l ng CTR sinh ho t pht sinh t i cc t nh thu c l u v c sng Nhu y (M t ph n c a TP. H N i, t nh Ha Bnh) l 2618,5 t n/ngy; trong l ng CTR th (t nh, l ) l 743 t n/ngy nh ng m i thu gom, v n chuy n v a i x l 74,7% v khu v c cc th tr n huy n, vng nng thn l ng CTR sinh h at pht sinh 1875,5 t n/ ngy nh ng h u nh ch a c thu gom v x l ng quy cch. B ng 1. Cc bi chn l p CTR ang ho t ng, cc d n xy d ng khu x l CTR ng tri n khai t i cc th thu c l u v c sng Nhu - y. T nh/ TP...
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New Microsoft Office Word Document - 1. V n nhi m mi tr ng...

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