{"id":28562,"date":"2019-01-27T18:48:00","date_gmt":"2019-01-27T11:48:00","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=28562"},"modified":"2021-10-03T18:49:19","modified_gmt":"2021-10-03T11:49:19","slug":"cac-nha-khoa-hoc-canh-bao-hiem-hoa-tu-qua-trinh-khu-muoi","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/cac-nha-khoa-hoc-canh-bao-hiem-hoa-tu-qua-trinh-khu-muoi\/","title":{"rendered":"C\u00e1c nh\u00e0 khoa h\u1ecdc c\u1ea3nh b\u00e1o hi\u1ec3m h\u1ecda t\u1eeb qu\u00e1 tr\u00ecnh kh\u1eed mu\u1ed1i"},"content":{"rendered":"\n

Vi\u1ec7c x\u1eed l\u00fd n\u01b0\u1edbc si\u00eau m\u1eb7n, s\u1ea3n ph\u1ea9m ph\u1ee5 c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t n\u01b0\u1edbc ng\u1ecdt \u0111ang l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 nan gi\u1ea3i v\u1edbi c\u00e1c nh\u00e0 khoa h\u1ecdc.<\/strong><\/p>\n\n\n\n

\"khu
Nh\u00e0 m\u00e1y kh\u1eed mu\u1ed1i \u1edf \u1ea2 R\u1eadp X\u00ea \u00dat n\u1eb1m s\u00e1t b\u1edd bi\u1ec3n \u0111\u1ec3 d\u1ec5 d\u00e0ng b\u01a1m h\u00fat, v\u00e0 sau khi kh\u1eed mu\u1ed1i, x\u1ea3 n\u01b0\u1edbc si\u00eau m\u1eb7n tr\u1edf l\u1ea1i \u0111\u1ea1i d\u01b0\u01a1ng. \u1ea2nh: Wzued Alzuhair\/Flickr\/Cc By-Nc-Sa 2.0<\/figcaption><\/figure>\n\n\n\n

M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi cho th\u1ea5y m\u1ed7i ng\u00e0y, c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t n\u01b0\u1edbc ng\u1ecdt b\u1eb1ng c\u00e1ch kh\u1eed mu\u1ed1i t\u1eeb n\u01b0\u1edbc bi\u1ec3n, th\u1ea3i ra kho\u1ea3ng 142 t\u1ef7 l\u00edt n\u01b0\u1edbc si\u00eau m\u1eb7n g\u1ecdi l\u00e0 n\u01b0\u1edbc mu\u1ed1i \u0111\u1eadm \u0111\u1eb7c v\u00e0o m\u00f4i tr\u01b0\u1eddng. <\/p>\n\n\n\n

Nh\u1eefng s\u1ea3n ph\u1ea9m ph\u1ee5 n\u00e0y c\u1ee7a qu\u00e1 tr\u00ecnh kh\u1eed mu\u1ed1i c\u00f3 th\u1ec3 gi\u1ebft ch\u1ebft nhi\u1ec1u lo\u00e0i sinh v\u1eadt bi\u1ec3n v\u00e0 l\u00e0m suy y\u1ebfu c\u00e1c \u0111\u1ea1i d\u01b0\u01a1ng c\u1ee7a h\u00e0nh tinh ch\u00fang ta, theo b\u00e1o c\u00e1o ng\u00e0y 14 th\u00e1ng 1 tr\u00ean T\u1ea1p ch\u00ed Science of the Total Environment.<\/p>\n\n\n\n

\u201cM\u1ed9t m\u1eb7t, ch\u00fang t\u00f4i \u0111ang c\u1ed1 g\u1eafng gi\u00fap ng\u01b0\u1eddi d\u00e2n – nh\u1ea5t l\u00e0 \u1edf nh\u1eefng v\u00f9ng kh\u00f4 h\u1ea1n – c\u00f3 \u0111\u1ee7 n\u01b0\u1edbc s\u1ea1ch. Nh\u01b0ng \u0111\u1ed3ng th\u1eddi ch\u00fang t\u00f4i c\u0169ng b\u1ed5 sung th\u00eam y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t\u201d, Manzoor Qadir, chuy\u00ean gia v\u00e0 l\u00e0 nh\u00e0 m\u00f4i tr\u01b0\u1eddng h\u1ecdc t\u1ea1i Vi\u1ec7n N\u01b0\u1edbc, M\u00f4i tr\u01b0\u1eddng v\u00e0 S\u1ee9c kh\u1ecfe thu\u1ed9c \u0110\u1ea1i h\u1ecdc Li\u00ean H\u1ee3p Qu\u1ed1c t\u1ea1i Hamilton, Canada cho bi\u1ebft.<\/p>\n\n\n\n

Do s\u1ef1 gia t\u0103ng d\u00e2n s\u1ed1 c\u1ee7a con ng\u01b0\u1eddi v\u00e0 bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu, n\u01b0\u1edbc ng\u00e0y c\u00e0ng tr\u1edf n\u00ean khan hi\u1ebfm. C\u00f4ng ngh\u1ec7 kh\u1eed m\u1eb7n tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p kh\u1ea3 thi cho v\u1ea5n \u0111\u1ec1 n\u00e0y v\u00e0 \u0111\u00e3 ph\u00e1t tri\u1ec3n theo c\u1ea5p s\u1ed1 nh\u00e2n k\u1ec3 t\u1eeb nh\u1eefng n\u0103m 1980. G\u1ea7n 16.000 nh\u00e0 m\u00e1y kh\u1eed mu\u1ed1i hi\u1ec7n \u0111ang ho\u1ea1t \u0111\u1ed9ng tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi.<\/p>\n\n\n\n

Vi\u1ec7c kh\u1eed mu\u1ed1i ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 bay h\u01a1i, d\u00f9ng m\u00e0ng chuy\u00ean d\u1ee5ng \u0111\u1ec3 t\u00e1ch n\u01b0\u1edbc tinh khi\u1ebft (h\u00f3a h\u1ecdc ho\u1eb7c \u0111i\u1ec7n h\u00f3a) t\u1eeb n\u01b0\u1edbc m\u1eb7n. Nh\u01b0ng d\u00f9 l\u00e0 h\u1ec7 th\u1ed1ng hay quy tr\u00ecnh n\u00e0o, lu\u00f4n c\u00f3 hai \u0111\u01b0\u1eddng \u1ed1ng: m\u1ed9t ch\u1ea3y ra n\u01b0\u1edbc ng\u1ecdt d\u00f9ng trong sinh ho\u1ea1t h\u00e0ng ng\u00e0y, v\u00e0 m\u1ed9t ch\u1ea3y ra n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c, th\u1ea3i tr\u1ef1c ti\u1ebfp v\u00e0o m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

Nh\u1eefng nghi\u00ean c\u1ee9u tr\u01b0\u1edbc \u0111\u00e2y kh\u00f4ng \u0111\u00e1nh gi\u00e1 ch\u00ednh x\u00e1c l\u01b0\u1ee3ng n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c m\u00e0 c\u00e1c nh\u00e0 m\u00e1y n\u00e0y th\u1ea3i ra, Qadir n\u00f3i. C\u00e1c nh\u00e0 khoa h\u1ecdc t\u1eebng cho r\u1eb1ng c\u00e1c nh\u00e0 m\u00e1y kh\u1eed mu\u1ed1i n\u00f3i chung cho ra n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c v\u00e0 n\u01b0\u1edbc ng\u1ecdt theo t\u1ec9 l\u1ec7 ngang nhau – m\u1ed9t l\u00edt n\u01b0\u1edbc m\u1ed7i lo\u1ea1i. Trong khi n\u01b0\u1edbc ng\u1ecdt c\u00f3 h\u00e0m l\u01b0\u1ee3ng mu\u1ed1i l\u00e0 0.05% tr\u1edf xu\u1ed1ng, con s\u1ed1 n\u00e0y \u1edf n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn 28,1% – t\u1ee9c l\u00e0 c\u00f3 391 gram mu\u1ed1i trong m\u1ed9t l\u00edt n\u01b0\u1edbc. <\/p>\n\n\n\n

Tuy nhi\u00ean, b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng d\u1eef li\u1ec7u v\u1ec1 ngu\u1ed3n n\u01b0\u1edbc v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a c\u00e1c nh\u00e0 m\u00e1y kh\u1eed mu\u1ed1i tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi, Qadir v\u00e0 c\u00e1c \u0111\u1ed3ng nghi\u1ec7p l\u1ea7n \u0111\u1ea7u ti\u00ean \u01b0\u1edbc t\u00ednh \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c \u0111\u01b0\u1ee3c th\u1ea3i ra h\u00e0ng ng\u00e0y: v\u1edbi m\u1ed7i l\u00edt n\u01b0\u1edbc ng\u1ecdt \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t, m\u1ed9t l\u00edt r\u01b0\u1ee1i n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c s\u1ebd \u0111\u01b0\u1ee3c th\u1ea3i tr\u1edf l\u1ea1i m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

H\u00e0ng ng\u00e0y, s\u1ed1 n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c th\u1ea3i ra nhi\u1ec1u h\u01a1n m\u1ed9t n\u1eeda l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ee7a th\u00e1c Niagara (th\u00e1c n\u01b0\u1edbc l\u1edbn th\u1ee9 2 th\u1ebf gi\u1edbi), v\u1edbi 70% l\u00e0 t\u1eeb c\u00e1c nh\u00e0 m\u00e1y kh\u1eed mu\u1ed1i \u1edf nh\u1eefng v\u00f9ng kh\u00f4 c\u1eb1n thu\u1ed9c B\u1eafc Phi v\u00e0 Trung \u0110\u00f4ng.<\/p>\n\n\n\n

\"khu
Bi\u1ec3u \u0111\u1ed3 l\u01b0\u1ee3ng n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c th\u1ea3i ra m\u1ed7i ng\u00e0y, \u0111\u01a1n v\u1ecb t\u00ednh l\u00e0 tri\u1ec7u m\u00e9t kh\u1ed1i. B\u1ed1n qu\u1ed1c gia \u1edf Trung \u0110\u00f4ng x\u1ea3 ra 55% s\u1ed1 n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c c\u1ee7a to\u00e0n th\u1ebf gi\u1edbi. Ngu\u1ed3n: L E. Jones et al\/Science of the Total Environment 2019.<\/figcaption><\/figure>\n\n\n\n

Khi n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c tr\u1edf l\u1ea1i \u0111\u1ea1i d\u01b0\u01a1ng, n\u00f3 t\u1ea1o ra m\u1ed9t v\u00f9ng m\u00f4i tr\u01b0\u1eddng ri\u00eang, Qadir n\u00f3i. Ch\u1ea5t th\u1ea3i l\u1ecfng d\u1ea1ng n\u00e0y c\u00f3 th\u1ec3 ch\u1ee9a kim lo\u1ea1i v\u00e0 ch\u1ea5t ch\u1ed1ng g\u1ec9 do s\u1ef1 \u0103n m\u00f2n, v\u00e0 v\u00ec \u0111\u1eadm \u0111\u1eb7c h\u01a1n n\u01b0\u1edbc bi\u1ec3n n\u00ean n\u00f3 tr\u00f4i \u0111i nh\u01b0 m\u1ed9t v\u0169ng n\u01b0\u1edbc m\u1eb7n d\u01b0\u1edbi \u0111\u00e1y bi\u1ec3n v\u00e0 c\u00f3 th\u1ec3 \u0111\u1ea7u \u0111\u1ed9c c\u00e1c sinh v\u1eadt bi\u1ec3n \u1edf khu v\u1ef1c \u0111\u00f3. <\/p>\n\n\n\n

M\u1ed9t s\u1ed1 n\u01b0\u1edbc th\u1ea3i ra v\u1eabn gi\u1eef l\u1ea1i nhi\u1ec7t c\u1ee7a qu\u00e1 tr\u00ecnh kh\u1eed mu\u1ed1i. Do kh\u1ea3 n\u0103ng h\u00f2a tan c\u1ee7a oxy gi\u1ea3m \u0111i khi nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 m\u1eb7n t\u0103ng l\u00ean, c\u00e1c khu v\u1ef1c d\u01b0\u1edbi bi\u1ec3n n\u01a1i n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c x\u1ea3 v\u00e0o c\u00f3 th\u1ec3 b\u1ecb c\u1ea1n ki\u1ec7t oxy.<\/p>\n\n\n\n

C\u00f3 chu\u1ea9n qu\u1ed1c t\u1ebf v\u1ec1 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i, c\u0169ng nh\u01b0 y\u00eau c\u1ea7u s\u1eed d\u1ee5ng c\u00e1c h\u00f3a ch\u1ea5t th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng trong qu\u00e1 tr\u00ecnh kh\u1eed mu\u1ed1i, Yoram Cohen, k\u1ef9 s\u01b0 h\u00f3a h\u1ecdc t\u1ea1i Vi\u1ec7n \u0110\u1ea1i h\u1ecdc California cho bi\u1ebft. \u201cTuy nhi\u00ean, t\u00f4i kh\u00f4ng ch\u1eafc m\u1ecdi ng\u01b0\u1eddi c\u00f3 tu\u00e2n th\u1ee7 n\u00f3 \u0111\u1ea7y \u0111\u00f9 hay kh\u00f4ng\u201d, \u00f4ng n\u00f3i. Qadir x\u00e1c nh\u1eadn r\u1eb1ng ch\u01b0a c\u00f3 n\u1ed7 l\u1ef1c n\u00e0o \u1edf c\u1ea5p ch\u00ednh ph\u1ee7 h\u1ed7 tr\u1ee3 c\u00e1c nghi\u00ean c\u1ee9u khoa h\u1ecdc gi\u1ea3m chi ph\u00ed.<\/p>\n\n\n\n

Vi\u1ec7c t\u00e1i s\u1eed d\u1ee5ng n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c \u0111a ph\u1ea7n r\u1ea5t t\u1ed1n k\u00e9m, k\u1ec3 c\u1ea3 vi\u1ec7c cho n\u00f3 ch\u1ea3y v\u00e0o h\u1ed3 ch\u1ee9a \u0111\u1ec3 ch\u1edd thu h\u1ed3i mu\u1ed1i th\u00f4. T\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ecba \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 s\u1eed d\u1ee5ng, chi ph\u00ed cho m\u1ed9t quy tr\u00ecnh kh\u1eed mu\u1ed1i dao \u0111\u1ed9ng t\u1eeb 0,5 \u0111\u00f4la \u0111\u1ebfn h\u01a1n 2 \u0111\u00f4la M\u1ef9 \u0111\u1ec3 t\u1ea1o ra 1.000 l\u00edt n\u01b0\u1edbc s\u1ea1ch, \u0111\u1ee7 cho 2 ng\u01b0\u1eddi M\u1ef9 d\u00f9ng m\u1ed7i ng\u00e0y. B\u1ed5 sung kh\u00e2u x\u1eed l\u00fd n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c s\u1ebd l\u00e0m t\u0103ng gi\u00e1 th\u00e0nh s\u1ea3n xu\u1ea5t.                     <\/p>\n\n\n\n

Nh\u1eefng c\u00f4ng ngh\u1ec7 kh\u1eed mu\u1ed1i hi\u1ec7n \u0111\u1ea1i nh\u1ea5t, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eed d\u1ee5ng oxit graphene, cho hi\u1ec7u qu\u1ea3 cao v\u00e0 \u00edt x\u1ea3 ra n\u01b0\u1edbc mu\u1ed1i \u0111\u1eb7c h\u01a1n. Nh\u01b0ng n\u00f3 ch\u01b0a ph\u1ed5 bi\u1ebfn v\u00e0 \u00edt \u0111\u01b0\u1ee3c d\u00f9ng \u1edf Trung \u0110\u00f4ng, n\u01a1i t\u1eadp trung \u0111a s\u1ed1 c\u00e1c nh\u00e0 m\u00e1y kh\u1eed mu\u1ed1i l\u1edbn c\u1ee7a th\u1ebf gi\u1edbi.<\/p>\n\n\n\n

T\u00f9ng Anh\/D\u00e2n Tr\u00ed<\/strong><\/p>\n\n\n\n

Theo Sciencenews<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Vi\u1ec7c x\u1eed l\u00fd n\u01b0\u1edbc si\u00eau m\u1eb7n, s\u1ea3n ph\u1ea9m ph\u1ee5 c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t n\u01b0\u1edbc ng\u1ecdt \u0111ang l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 nan gi\u1ea3i v\u1edbi c\u00e1c nh\u00e0 khoa h\u1ecdc. M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi cho th\u1ea5y m\u1ed7i ng\u00e0y, c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t n\u01b0\u1edbc ng\u1ecdt b\u1eb1ng c\u00e1ch kh\u1eed mu\u1ed1i t\u1eeb n\u01b0\u1edbc bi\u1ec3n, th\u1ea3i ra kho\u1ea3ng 142 t\u1ef7 […]<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-28562","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=28562"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28562\/revisions"}],"predecessor-version":[{"id":28563,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28562\/revisions\/28563"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=28562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=28562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=28562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}