Nh\u1ef1a l\u00e0 lo\u1ea1i nguy\u00ean li\u1ec7u m\u1edbi, ch\u00fang c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m nh\u01b0: nh\u1eb9, kh\u00f4ng th\u1ea5m n\u01b0\u1edbc, b\u1ec1n v\u00e0 gi\u00e1 r\u1ebb. T\u1eeb ng\u00e0y \u0111\u1ed3 nh\u1ef1a ra \u0111\u1eddi \u0111\u1ebfn nay ch\u00fang \u0111\u01b0\u1ee3c d\u00f9ng r\u1ed9ng r\u00e3i trong c\u00f4ng nghi\u1ec7p, n\u00f4ng nghi\u1ec7p, \u0111\u1eddi s\u1ed1ng v\u00e0 \u0111\u01b0\u1ee3c m\u1ecdi ng\u01b0\u1eddi \u01b0a th\u00edch.<\/p>\n\n\n\n
N\u0103m 1952, \u1edf M\u1ef9 l\u1ea7n \u0111\u1ea7u ti\u00ean ng\u01b0\u1eddi ta d\u00f9ng t\u00fai nilon \u0111\u1ec3 l\u00e0m t\u00fai \u0111\u1ef1ng c\u00e1c m\u1ea7m \u01b0\u01a1m d\u00f9ng trong n\u00f4ng nghi\u1ec7p, \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 r\u1ea5t r\u00f5 r\u1ec7t l\u00e0 qu\u1ea3 c\u00e2y ch\u00edn s\u1edbm v\u00e0 s\u1ea3n l\u01b0\u1ee3ng cao. Do \u0111\u00f3 t\u00fai nilon \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u00e1t minh khoa h\u1ecdc k\u0129 thu\u1eadt trong vi\u1ec7c \u1ee9ng d\u1ee5ng \u0111\u1ec3 l\u00e0m t\u00fai \u01b0\u01a1m c\u00e2y v\u00e0 \u0111\u01b0\u1ee3c nhi\u1ec1u n\u01a1i tr\u00ean th\u1ebf gi\u1edbi \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i, \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t cu\u1ed9c \u201cc\u00e1ch m\u1ea1ng m\u00e0u tr\u1eafng\u201d v\u0129 \u0111\u1ea1i trong l\u0129nh v\u1ef1c k\u0129 thu\u1eadt n\u00f4ng nghi\u1ec7p. T\u00fai nh\u1ef1a nh\u1edd \u0111\u1eb7c \u0111i\u1ec3m \u01b0u vi\u1ec7t c\u1ee7a m\u00ecnh m\u00e0 n\u1ed5i ti\u1ebfng tr\u00ean th\u1ebf gi\u1edbi, l\u01b0\u1ee3ng d\u00f9ng m\u1ed7i n\u0103m c\u00e0ng t\u0103ng. T\u1eeb n\u0103m 1990 \u2013 1995, b\u00ecnh qu\u00e2n t\u1ec9 l\u1ec7 t\u0103ng h\u00e0ng n\u0103m l\u00e0 8,9%. Nh\u01b0ng d\u00f9ng xong, vi\u1ec7c x\u1eed l\u00ed \u0111\u1ed3 nh\u1ef1a c\u0169 h\u1ecfng v\u00e0 t\u00fai nilon ph\u1ebf th\u1ea3i r\u1ea5t kh\u00f3 kh\u0103n. \u0110\u1ed3 nh\u1ef1a v\u00e0 t\u00fai nilon l\u00e0 s\u1ea3n ph\u1ea9m h\u00f3a h\u1ecdc c\u1ee7a d\u1ea7u m\u1ecf, n\u00f3 kh\u00f3 b\u1ecb vi sinh v\u1eadt ph\u00e2n gi\u1ea3i. Do \u0111\u00f3 n\u1ebfu x\u1eed l\u00ed kh\u00f4ng th\u00edch h\u1ee3p s\u1ebd g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng. T\u00fai nilon ph\u1ea7n nhi\u1ec1u m\u00e0u tr\u1eafng, cho n\u00ean ng\u01b0\u1eddi ta g\u1ecdi s\u1ef1 \u00f4 nhi\u1ec5m do ch\u00fang g\u00e2y ra l\u00e0 \u201c\u00f4 nhi\u1ec5m m\u00e0u tr\u1eafng\u201d.<\/p>\n\n\n\n
\u00d4 nhi\u1ec5m m\u00e0u tr\u1eafng ch\u1ee7 y\u1ebfu c\u00f3 nh\u1eefng t\u00e1c h\u1ea1i sau: t\u00fai nilon c\u0169, ho\u1eb7c c\u00e1c h\u1ed9p c\u01a1m b\u1eb1ng nh\u1ef1a khi l\u1eabn v\u1edbi \u0111\u1ea5t s\u1ebd g\u00e2y kh\u00f3 kh\u0103n cho vi\u1ec7c canh t\u00e1c \u0111\u1ed3ng th\u1eddi \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e2y c\u1ed1i h\u1ea5p thu c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng v\u00e0 n\u01b0\u1edbc, g\u00e2y n\u00ean s\u1ea3n l\u01b0\u1ee3ng gi\u1ea3m th\u1ea5p. Khi t\u00fai nilon b\u1ecb v\u1ee9t b\u1eeba b\u00e3i, \u0111\u1ed9ng v\u1eadt d\u1ec5 \u0103n ph\u1ea3i khi\u1ebfn cho ch\u00fang m\u1eafc b\u1ec7nh v\u00e0 ch\u1ebft. Nh\u1eefng t\u00fai nilon v\u1ee9t xu\u1ed1ng n\u01b0\u1edbc m\u1ed9t khi b\u1ecb chim ho\u1eb7c c\u00e1 \u0103n nh\u1ea7m th\u00ec nh\u1eefng \u0111\u1ed9ng v\u1eadt n\u00e0y s\u1ebd ng\u1ed9 \u0111\u1ed9c. Ngo\u00e0i ra, n\u1ebfu trong n\u01b0\u1edbc c\u00f3 nhi\u1ec1u t\u00fai nilon ch\u00fang c\u00f3 th\u1ec3 b\u1ecb cu\u1ed1n v\u00e0o c\u00e1nh ch\u00e2n v\u1ecbt l\u00e0m cho xu\u1ed3ng m\u00e1y rung l\u00ean, g\u00e2y kh\u00f3 kh\u0103n cho giao th\u00f4ng \u0111\u01b0\u1eddng th\u1ee7y.<\/p>\n\n\n\n
\u00d4 nhi\u1ec5m m\u00e0u tr\u1eafng \u0111\u00e3 g\u00e2y s\u1ef1 quan t\u00e2m r\u1ed9ng r\u00e3i \u0111\u1ed1i v\u1edbi c\u00e1c n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi. Ng\u01b0\u1eddi ta lu\u00f4n t\u00ecm c\u00e1ch \u0111\u1ec3 x\u1eed l\u00ed ch\u00fang. Ban \u0111\u1ea7u ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00ed \u0111\u1ed3 nh\u1ef1a v\u00e0 t\u00fai nilon l\u00e0 \u0111\u1ed1t ch\u00e1y, nh\u01b0ng nh\u01b0 v\u1eady s\u1ebd s\u1ea3n sinh ra c\u00e1c ch\u1ea5t kh\u00ed c\u00f3 h\u1ea1i, g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng. V\u1ec1 sau ng\u01b0\u1eddi ta d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p ch\u00f4n s\u00e2u, nh\u01b0ng \u0111\u1ed3 nh\u1ef1a v\u00e0 t\u00fai nilon ch\u00f4n xu\u1ed1ng l\u00e2u ng\u00e0y kh\u00f4ng th\u1ec3 t\u1ef1 ph\u00e2n h\u1ee7y. Ng\u00e0y nay ng\u01b0\u1eddi ta ch\u1ee7 y\u1ebfu d\u00f9ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p sau \u0111\u1ec3 kh\u1ed1ng ch\u1ebf v\u00e0 x\u1eed l\u00ed \u00f4 nhi\u1ec5m m\u00e0u tr\u1eafng: m\u1ed9t l\u00e0 thu h\u1ed3i \u0111\u1ec3 t\u1eadn d\u1ee5ng; hai l\u00e0 gi\u1ea3m \u00edt ho\u1eb7c c\u1ea5m s\u1eed d\u1ee5ng nh\u1eefng lo\u1ea1i nilon kh\u00f3 ph\u00e2n h\u1ee7y; ba l\u00e0 khai th\u00e1c v\u00e0 m\u1edf r\u1ed9ng s\u1eed d\u1ee5ng t\u00fai l\u00e0m b\u1eb1ng gi\u1ea5y ho\u1eb7c l\u00e0 ch\u1ebf ph\u1ea9m nh\u1ef1a c\u00f3 th\u1ec3 t\u1ef1 ph\u00e2n h\u1ee7y v.v.. \u0111\u1ec3 thay th\u1ebf nh\u1eefng t\u00fai nh\u1ef1a kh\u00f4ng d\u1ec5 b\u1ecb ph\u00e2n h\u1ee7y.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: \u00d4 nhi\u1ec5m m\u00e0u tr\u1eafng. Ch\u1ebf ph\u1ea9m nh\u1ef1a; Nh\u1ef1a t\u1ef1 ph\u00e2n h\u1ee7y.<\/p>\n","protected":false},"excerpt":{"rendered":"
Nh\u1ef1a l\u00e0 lo\u1ea1i nguy\u00ean li\u1ec7u m\u1edbi, ch\u00fang c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m nh\u01b0: nh\u1eb9, kh\u00f4ng th\u1ea5m n\u01b0\u1edbc, b\u1ec1n v\u00e0 gi\u00e1 r\u1ebb. T\u1eeb ng\u00e0y \u0111\u1ed3 nh\u1ef1a ra \u0111\u1eddi \u0111\u1ebfn nay ch\u00fang \u0111\u01b0\u1ee3c d\u00f9ng r\u1ed9ng r\u00e3i trong c\u00f4ng nghi\u1ec7p, n\u00f4ng nghi\u1ec7p, \u0111\u1eddi s\u1ed1ng v\u00e0 \u0111\u01b0\u1ee3c m\u1ecdi ng\u01b0\u1eddi \u01b0a th\u00edch. N\u0103m 1952, \u1edf M\u1ef9 l\u1ea7n \u0111\u1ea7u ti\u00ean ng\u01b0\u1eddi ta […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,17],"tags":[],"class_list":["post-9510","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-moi-truong"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9510","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=9510"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9510\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9510"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9510"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}