{"id":28415,"date":"2019-06-10T09:11:00","date_gmt":"2019-06-10T02:11:00","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=28415"},"modified":"2021-10-03T16:11:58","modified_gmt":"2021-10-03T09:11:58","slug":"cac-nha-khoa-hoc-danh-gia-muc-do-vi-hat-nhua-ma-chung-ta-nuot-vao-co-the","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/cac-nha-khoa-hoc-danh-gia-muc-do-vi-hat-nhua-ma-chung-ta-nuot-vao-co-the\/","title":{"rendered":"C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 vi h\u1ea1t nh\u1ef1a m\u00e0 ch\u00fang ta nu\u1ed1t v\u00e0o c\u01a1 th\u1ec3"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">C\u00e1c nh\u00e0 m\u00f4i tr\u01b0\u1eddng Canada \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng, h\u00e0ng n\u0103m, trung b\u00ecnh m\u1ed7i ng\u01b0\u1eddi h\u00edt, u\u1ed1ng ho\u1eb7c nu\u1ed1t h\u01a1n 75.000 vi h\u1ea1t nh\u1ef1a x\u00e2m nh\u1eadp v\u00e0o c\u01a1 th\u1ec3 c\u00f9ng v\u1edbi c\u00e1 bi\u1ec3n, c\u00e1c s\u1ea3n ph\u1ea9m th\u1ef1c ph\u1ea9m kh\u00e1c ho\u1eb7c n\u01b0\u1edbc \u0111\u00f3ng chai. \u1ea2nh h\u01b0\u1edfng s\u1ee9c kh\u1ecfe c\u00f3 th\u1ec3 c\u1ee7a vi\u1ec7c n\u00e0y \u0111\u01b0\u1ee3c ti\u1ebft l\u1ed9 tr\u00ean t\u1ea1p ch\u00ed ES&amp;T.<\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/icdn.dantri.com.vn\/thumb_w\/640\/2019\/06\/10\/nhua-1560122706191.jpg\" alt=\"C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 vi h\u1ea1t nh\u1ef1a m\u00e0 ch\u00fang ta nu\u1ed1t v\u00e0o c\u01a1 th\u1ec3 - 1\" title=\"C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 vi h\u1ea1t nh\u1ef1a m\u00e0 ch\u00fang ta nu\u1ed1t v\u00e0o c\u01a1 th\u1ec3 - 1\"\/><\/figure><\/div>\n\n\n\n<p>\u201cC\u00e1ch d\u1ec5 nh\u1ea5t \u0111\u1ec3 tr\u00e1nh t\u00edch t\u1ee5 nh\u1ef1a trong c\u01a1 th\u1ec3 l\u00e0 ng\u1eebng u\u1ed1ng n\u01b0\u1edbc t\u1eeb chai nh\u1ef1a. M\u1eb7t kh\u00e1c, c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u00f3 \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00f4ng th\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c h\u1ea1t polymer trong h\u1ec7 sinh th\u00e1i. Ch\u00fang s\u1ebd s\u1edbm c\u00f3 m\u1eb7t trong t\u1ea5t c\u1ea3 c\u00e1c s\u1ea3n ph\u1ea9m. \u0110i\u1ec1u duy nh\u1ea5t c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c \u0111\u00f3 l\u00e0 b\u1eaft \u0111\u1ea7u s\u1ea3n xu\u1ea5t \u00edt nh\u1ef1a h\u01a1n&#8221;, c\u00e1c nh\u00e0 khoa h\u1ecdc vi\u1ebft.<\/p>\n\n\n\n<p>Ng\u00e0y nay, h\u00e0ng n\u0103m c\u00f3 kho\u1ea3ng 300 tri\u1ec7u t\u1ea5n ch\u1ea5t th\u1ea3i nh\u1ef1a, ph\u1ea7n l\u1edbn kh\u00f4ng ph\u00e2n h\u1ee7y b\u1edfi c\u00e1c vi khu\u1ea9n \u0111\u1ea5t, v\u1eabn t\u1ed3n t\u1ea1i trong c\u00e1c b\u00e3i ch\u00f4n l\u1ea5p c\u1ee7a Tr\u00e1i \u0111\u1ea5t v\u00e0 v\u1eabn \u1edf d\u1ea1ng g\u1ea7n nh\u01b0 nguy\u00ean v\u1eb9n trong h\u00e0ng ch\u1ee5c v\u00e0 th\u1eadm ch\u00ed h\u00e0ng tr\u0103m n\u0103m. Khi r\u00e1c n\u00e0y r\u01a1i xu\u1ed1ng c\u00e1c \u0111\u1ea1i d\u01b0\u01a1ng th\u1ebf gi\u1edbi, n\u00f3 t\u1ea1o th\u00e0nh nh\u1eefng \u0111\u1ed1ng l\u1edbn, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1i g\u1ecdi l\u00e0 \u201cv\u1ec7t r\u00e1c l\u1edbn \u1edf Th\u00e1i B\u00ecnh D\u01b0\u01a1ng&#8221;.<\/p>\n\n\n\n<p>V\u00ec l\u00fd do n\u00e0y, giai \u0111o\u1ea1n 50-70 n\u0103m v\u1eeba qua b\u1ecb c\u00e1c nh\u00e0 h\u1ea3i d\u01b0\u01a1ng h\u1ecdc g\u1ecdi \u0111\u00f9a l\u00e0&nbsp;&#8220;th\u1eddi k\u1ef3 ch\u1ea5t d\u1ebbo&#8221;&nbsp;v\u00ec s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c vi h\u1ea1t polymer trong v\u00f9ng n\u01b0\u1edbc \u0111\u1ea1i d\u01b0\u01a1ng th\u1ebf gi\u1edbi. Theo quan s\u00e1t c\u1ee7a c\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f4ng b\u1ed1 n\u0103m 2014, c\u00e1c h\u1ea1t n\u00e0y kh\u00f4ng t\u1ed3n t\u1ea1i l\u00e2u trong n\u01b0\u1edbc v\u00e0 r\u00f5 r\u00e0ng l\u00e0 b\u1ecb c\u00e1 v\u00e0 \u0111\u1ed9ng v\u1eadt bi\u1ec3n \u0103n, g\u00e2y ra m\u1ed1i \u0111e d\u1ecda \u0111\u1ed1i v\u1edbi h\u1ec7 sinh th\u00e1i v\u00e0 s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi.<\/p>\n\n\n\n<p>\u00d4ng Kieran Cox t\u1eeb \u0110\u1ea1i h\u1ecdc Victoria (Canada) v\u00e0 c\u00e1c \u0111\u1ed3ng nghi\u1ec7p \u0111\u00e3 th\u1ef1c hi\u1ec7n b\u01b0\u1edbc h\u1ee3p l\u00fd ti\u1ebfp theo &#8211; h\u1ecd c\u1ed1 g\u1eafng \u0111\u00e1nh gi\u00e1 c\u00f3 bao nhi\u00eau h\u1ea1t nh\u01b0 v\u1eady x\u00e2m nh\u1eadp v\u00e0o c\u01a1 th\u1ec3 con ng\u01b0\u1eddi.<\/p>\n\n\n\n<p>\u0110\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e2n t\u00edch t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng tr\u00ecnh khoa h\u1ecdc v\u1ec1 n\u1ed3ng \u0111\u1ed9 nh\u1ef1a \u01b0\u1edbc t\u00ednh trong c\u00e1 bi\u1ec3n v\u00e0 s\u00f4ng, c\u0169ng nh\u01b0 trong m\u00f4 c\u1ee7a c\u00e1c \u0111\u1ea1i di\u1ec7n kh\u00e1c c\u1ee7a h\u1ec7 \u0111\u1ed9ng v\u1eadt v\u00e0 th\u1ef1c v\u1eadt m\u00e0 th\u1ecbt, tr\u00e1i ho\u1eb7c h\u1ea1t \u0111\u01b0\u1ee3c con ng\u01b0\u1eddi s\u1eed d\u1ee5ng. Ngo\u00e0i ra, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e2n t\u00edch ch\u1ebf \u0111\u1ed9 \u0103n \u0111i\u1ec3n h\u00ecnh c\u1ee7a ng\u01b0\u1eddi M\u1ef9 hi\u1ec7n \u0111\u1ea1i v\u00e0 c\u1ed1 g\u1eafng t\u00ecm c\u00e1c ngu\u1ed3n h\u1ea1t polymer ti\u1ec1m n\u0103ng kh\u00e1c trong \u0111\u00f3.<\/p>\n\n\n\n<p>Ph\u00e2n t\u00edch n\u00e0y ti\u1ebft l\u1ed9 m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 th\u00fa v\u1ecb. \u0110\u1ea7u ti\u00ean, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng c\u01b0 d\u00e2n Hoa K\u1ef3 v\u00e0 c\u00e1c n\u01b0\u1edbc ph\u00e1t tri\u1ec3n kh\u00e1c \u0111ang nu\u1ed1t v\u00e0 u\u1ed1ng m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c ph\u1ea7n t\u1eed nh\u1ef1a, t\u1eeb 40.000-60.000 h\u1ea1t vi m\u00f4 nh\u1ef1a. Th\u1ecb ph\u1ea7n l\u1edbn nh\u1ea5t c\u00f3 trong ba lo\u1ea1i s\u1ea3n ph\u1ea9m l\u00e0 sinh v\u1eadt bi\u1ec3n, n\u01b0\u1edbc \u0111\u00f3ng chai v\u00e0 \u0111\u01b0\u1eddng.<\/p>\n\n\n\n<p>Ngo\u00e0i ra, ph\u00e2n t\u00edch c\u00e1c \u1ea5n ph\u1ea9m g\u1ea7n \u0111\u00e2y \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng c\u00f3 m\u1ed9t l\u01b0\u1ee3ng c\u00e1c vi h\u1ea1t v\u00e0 s\u1ee3i polymer t\u01b0\u01a1ng \u0111\u01b0\u01a1ng x\u00e2m nh\u1eadp v\u00e0o c\u01a1 th\u1ec3 c\u1ee7a con ng\u01b0\u1eddi v\u00e0 \u0111\u1ed9ng v\u1eadt c\u00f9ng v\u1edbi kh\u00f4ng kh\u00ed. Trung b\u00ecnh, v\u1edbi ngu\u1ed3n n\u00e0y, c\u01b0 d\u00e2n Hoa K\u1ef3 h\u00edt, nu\u1ed1t v\u00e0 u\u1ed1ng t\u1eeb 75.000-20.000 h\u1ea1t nh\u1ef1a m\u1ed7i n\u0103m.<\/p>\n\n\n\n<p>Theo c\u00e1c nh\u00e0 khoa h\u1ecdc, nh\u1eefng \u01b0\u1edbc t\u00ednh n\u00e0y cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c n\u1ed7 l\u1ef1c tr\u01b0\u1edbc \u0111\u00e2y \u0111\u1ec3 t\u00ednh k\u00edch th\u01b0\u1edbc \u201ckh\u1ea9u ph\u1ea7n nh\u1ef1a d\u1ebbo\u201d c\u1ee7a lo\u00e0i ng\u01b0\u1eddi. Hi\u1ec7n v\u1eabn ch\u01b0a r\u00f5 c\u00e1c vi h\u1ea1t nh\u1ef1a n\u00e0y l\u1ecdt v\u00e0o h\u1ec7 th\u1ed1ng ti\u00eau h\u00f3a v\u00e0 ph\u1ed5i th\u00ec g\u00e2y ra h\u1eadu qu\u1ea3 nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n\n\n\n<p>\u00d4ng Kieran Cox v\u00e0 c\u00e1c \u0111\u1ed3ng nghi\u1ec7p hy v\u1ecdng r\u1eb1ng kh\u00e1m ph\u00e1 c\u1ee7a h\u1ecd s\u1ebd khuy\u1ebfn kh\u00edch c\u00e1c nh\u00f3m kh\u00e1c nghi\u00ean c\u1ee9u chi ti\u1ebft v\u1ec1 t\u00e1c h\u1ea1i c\u1ee7a vi h\u1ea1t nh\u1ef1a \u0111\u1ed1i v\u1edbi c\u01a1 th\u1ec3 v\u00e0 t\u00ednh n\u0103ng g\u00e2y ung th\u01b0 v\u00e0 \u0111\u1ed9c h\u1ea1i ti\u1ec1m t\u00e0ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c nh\u00e0 m\u00f4i tr\u01b0\u1eddng Canada \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng, h\u00e0ng n\u0103m, trung b\u00ecnh m\u1ed7i ng\u01b0\u1eddi h\u00edt, u\u1ed1ng ho\u1eb7c nu\u1ed1t h\u01a1n 75.000 vi h\u1ea1t nh\u1ef1a x\u00e2m nh\u1eadp v\u00e0o c\u01a1 th\u1ec3 c\u00f9ng v\u1edbi c\u00e1 bi\u1ec3n, c\u00e1c s\u1ea3n ph\u1ea9m th\u1ef1c ph\u1ea9m kh\u00e1c ho\u1eb7c n\u01b0\u1edbc \u0111\u00f3ng chai. \u1ea2nh h\u01b0\u1edfng s\u1ee9c kh\u1ecfe c\u00f3 th\u1ec3 c\u1ee7a vi\u1ec7c n\u00e0y \u0111\u01b0\u1ee3c ti\u1ebft [&hellip;]<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-28415","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\/28415","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\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=28415"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28415\/revisions"}],"predecessor-version":[{"id":28416,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28415\/revisions\/28416"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=28415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=28415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=28415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}