{"id":9724,"date":"2021-11-21T18:11:39","date_gmt":"2021-11-21T11:11:39","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=9724"},"modified":"2021-11-21T18:36:20","modified_gmt":"2021-11-21T11:36:20","slug":"tai-sao-co-mot-so-thuc-vat-lai-co-the-phan-giai-doc-tinh-trong-nuoc-o-nhiem","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tai-sao-co-mot-so-thuc-vat-lai-co-the-phan-giai-doc-tinh-trong-nuoc-o-nhiem\/","title":{"rendered":"T\u1ea1i sao c\u00f3 m\u1ed9t s\u1ed1 th\u1ef1c v\u1eadt l\u1ea1i c\u00f3 th\u1ec3 ph\u00e2n gi\u1ea3i \u0111\u1ed9c t\u00ednh trong n\u01b0\u1edbc \u00f4 nhi\u1ec5m?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">N\u01b0\u1edbc \u00f4 nhi\u1ec5m th\u01b0\u1eddng c\u00f3 \u0111\u1ed9c t\u00ednh. Nh\u01b0ng c\u00f3 m\u1ed9t lo\u1ea1i th\u1ef1c v\u1eadt g\u1ecdi l\u00e0 h\u00e0nh n\u01b0\u1edbc, n\u00f3 v\u1eeba c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 ch\u1ea5t c\u00f3 \u0111\u1ed9c \u1edf trong n\u01b0\u1edbc l\u1ea1i v\u1eeba c\u00f3 th\u1ec3 gi\u1ebft ch\u1ebft vi khu\u1ea9n trong n\u01b0\u1edbc. Ch\u1ea5t h\u1eefu c\u01a1 trong \u0111\u1ea7m l\u1ea7y b\u1ecb \u00f4 nhi\u1ec5m \u0111\u1ee7 \u0111\u1ec3 gi\u1ebft ch\u1ebft lo\u00e0i c\u00e1 c\u00f3 m\u01b0\u1eddi m\u1ea5y lo\u1ea1i, n\u1ebfu tr\u1ed3ng v\u00e0o n\u01b0\u1edbc \u0111\u00f3 lo\u1ea1i h\u00e0nh n\u01b0\u1edbc, ch\u1ea5t h\u1eefu c\u01a1 c\u00f3 \u0111\u1ed9c \u0111\u00f3 s\u1ebd b\u1ecb n\u00f3 h\u1ea5p th\u1ee5 h\u1ebft. V\u00ed d\u1ee5 trong n\u01b0\u1edbc \u00f4 nhi\u1ec5m khi n\u1ed3ng \u0111\u1ed9 ch\u1ea5t phenol \u0111\u1ea1t t\u1edbi 400 miligam\/l\u00edt (mg\/l) th\u00ec c\u00e2y h\u00e0nh n\u01b0\u1edbc trong m\u1ed9t th\u00e1ng c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 h\u1ebft to\u00e0n b\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i c\u00e2y h\u00e0nh n\u01b0\u1edbc ra c\u00f2n c\u00f3 m\u1ed9t s\u1ed1 c\u00e2y c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng s\u1ea1ch h\u00f3a n\u01b0\u1edbc b\u1ecb \u00f4 nhi\u1ec5m t\u01b0\u01a1ng \u0111\u1ed1i hi\u1ec7u qu\u1ea3 nh\u01b0 lo\u00e0i lau s\u1eady, c\u00e2y c\u1ecf n\u1ebfn, b\u00e8o Nh\u1eadt B\u1ea3n, c\u1ea7n, t\u1ea3o kim ng\u01b0, l\u1ee5c b\u00ecnh\u2026 \u0110\u1eb7c bi\u1ec7t c\u00e2y b\u00e8o Nh\u1eadt B\u1ea3n khi n\u1ed3ng \u0111\u1ed9 n\u01b0\u1edbc b\u1ecb \u00f4 nhi\u1ec5m k\u1ebdm l\u00e0 10 mg\/l th\u00ec ch\u1ec9 c\u1ea7n h\u01a1n m\u1ed9t th\u00e1ng, l\u01b0\u1ee3ng k\u1ebdm trong c\u01a1 th\u1ec3 c\u00e2y s\u1ebd t\u0103ng 133% so v\u1edbi c\u00e2y b\u00e8o tr\u1ed3ng \u1edf v\u00f9ng n\u01b0\u1edbc kh\u00f4ng b\u1ecb \u00f4 nhi\u1ec5m k\u1ebdm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 ch\u1ea5t c\u00f3 \u0111\u1ed9c trong n\u01b0\u1edbc c\u1ee7a th\u1ef1c v\u1eadt r\u1ea5t m\u1ea1nh, c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 ch\u1ea5t c\u00f3 \u0111\u1ed9c cao h\u01a1n m\u1ea5y ch\u1ee5c l\u1ea7n, th\u1eadm ch\u00ed m\u1ea5y ngh\u00ecn l\u1ea7n n\u1ed3ng \u0111\u1ed9 trong n\u01b0\u1edbc th\u01b0\u1eddng, v\u00ed d\u1ee5 lau s\u1eady, n\u1ed3ng \u0111\u1ed9 h\u1ea5p th\u1ee5 mangan c\u00f3 th\u1ec3 l\u00e0 1.770 l\u1ea7n n\u1ed3ng \u0111\u1ed9 c\u00f3 trong n\u01b0\u1edbc, n\u1ed3ng \u0111\u1ed9 h\u1ea5p th\u1ee5 s\u1eaft l\u00e0 3.388 l\u1ea7n n\u1ed3ng \u0111\u1ed9 c\u00f3 trong n\u01b0\u1edbc; t\u1ea3o \u0111u\u00f4i c\u00e1o h\u1ea5p th\u1ee5 ch\u1ea5t c\u00f4ban l\u00e0 19 l\u1ea7n, h\u1ea5p th\u1ee5 k\u1ebdm l\u00e0 2.670 l\u1ea7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0ng c\u00f3 m\u1ed9t \u0111i\u1ec3m ph\u1ea3i ch\u00fa \u00fd l\u00e0, c\u00f3 m\u1ed9t s\u1ed1 ch\u1ea5t c\u00f3 \u0111\u1ed9c nh\u01b0 xianogien, th\u1ea1ch t\u00edn, crom, th\u1ee7y ng\u00e2n\u2026 ch\u00fang chuy\u1ec3n d\u1ecbch ch\u1eadm trong c\u01a1 th\u1ec3 th\u1ef1c v\u1eadt, th\u01b0\u1eddng t\u1eadp trung \u1edf ph\u1ea7n r\u1ec5 c\u1ee7a th\u1ef1c v\u1eadt; c\u00f2n nh\u1eefng nguy\u00ean t\u1ed1 nh\u01b0 cadimi v\u00e0 s\u00ealen\u2026 chuy\u1ec3n d\u1ecbch nhanh, c\u00f3 th\u1ec3 chuy\u1ec3n d\u1ecbch t\u1eeb ph\u1ea7n r\u1ec5 c\u1ee7a th\u1ef1c v\u1eadt l\u00ean ph\u1ea7n th\u00e2n v\u00e0 l\u00e1, h\u01a1n n\u1eefa c\u00f3 m\u1ed9t b\u1ed9 ph\u1eadn c\u00f2n v\u00e0o trong c\u1ea3 qu\u1ea3 v\u00e0 h\u1ea1t. Bi\u1ebft r\u00f5 \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y \u0111\u1ec3 ta \u0111\u1eb7c bi\u1ec7t ch\u00fa \u00fd, nh\u1eefng n\u01a1i \u00f4 nhi\u1ec5m xianogien, th\u1ea1ch t\u00edn, crom, th\u1ee7y ng\u00e2n tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng tr\u1ed3ng nh\u1eefng c\u00e2y l\u1ea5y th\u00e2n v\u00e0 r\u1ec5 \u0103n nh\u01b0 khoai n\u01b0\u1edbc, sen, m\u00e3 th\u1ea7y; c\u00f2n nh\u1eefng v\u00f9ng \u00f4 nhi\u1ec5m cadimi v\u00e0 s\u00ealen th\u00ec kh\u00f4ng tr\u1ed3ng rau \u0103n l\u00e1 v\u00e0 c\u00e1c lo\u1ea1i c\u00e2y \u0103n qu\u1ea3, h\u1ea1t nh\u01b0 ng\u0169 c\u1ed1c \u0111\u1ec3 tr\u00e1nh \u0111\u1ed9c g\u00e2y nguy hi\u1ec3m cho c\u01a1 th\u1ec3 con ng\u01b0\u1eddi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eady th\u1ef1c v\u1eadt h\u1ea5p th\u1ee5 ch\u1ea5t c\u00f3 \u0111\u1ed9c, t\u1ea1i sao l\u1ea1i kh\u00f4ng b\u1ecb h\u1ea1i? C\u01a1 th\u1ec3 th\u1ef1c v\u1eadt c\u00f3 th\u1ec3 ph\u00e2n gi\u1ea3i ch\u1ea5t c\u00f3 \u0111\u1ed9c chuy\u1ec3n th\u00e0nh ch\u1ea5t kh\u00f4ng \u0111\u1ed9c. Sau khi th\u1ef1c v\u1eadt h\u1ea5p th\u1ee5 ch\u1ea5t ph\u00eanol, \u0111\u1ea1i b\u1ed9 ph\u1eadn \u0111\u00e3 tham gia v\u00e0o qu\u00e1 tr\u00ecnh thay th\u1ebf c\u1ee7a \u0111\u01b0\u1eddng, sau khi k\u1ebft h\u1ee3p v\u1edbi \u0111\u01b0\u1eddng s\u1ebd t\u1ea1o ra \u0111\u01b0\u1eddng ph\u00eanol, l\u00fac n\u00e0y ch\u1ea5t phenol m\u1ea5t \u0111i t\u00ednh \u0111\u1ed9c. Th\u1ef1c v\u1eadt c\u0169ng c\u00f3 th\u1ec3 h\u1ea5p thu phenol, d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng c\u00f3 \u00e1nh s\u00e1ng, n\u00f3 s\u1ebd ph\u00e2n gi\u1ea3i phenol th\u00e0nh carbon dioxide, t\u1eeb \u0111\u00f3 m\u00e0 ti\u00eau tr\u1eeb \u0111\u1ed9c t\u00ednh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cyanogen sau khi v\u00e0o c\u01a1 th\u1ec3 th\u1ef1c v\u1eadt s\u1ebd k\u1ebft h\u1ee3p v\u1edbi serine t\u1ea1o th\u00e0nh axite lactanic r\u1ed3i chuy\u1ec3n h\u00f3a th\u00e0nh axit axetat amoni v\u00e0 axit aspartic, hai ch\u1ea5t n\u00e0y \u0111\u1ec1u c\u00f3 t\u00ednh kh\u00f4ng \u0111\u1ed9c. Th\u1ef1c v\u1eadt th\u1ef1c s\u1ef1 l\u00e0 \u201cb\u1ed9 m\u00e1y l\u00e0m s\u1ea1ch\u201d c\u1ee7a thi\u00ean nhi\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3n l\u0129nh l\u00e0m s\u1ea1ch ch\u1ea5t \u0111\u1ed9c trong n\u01b0\u1edbc \u00f4 nhi\u1ec5m c\u1ee7a th\u1ef1c v\u1eadt c\u00f3 m\u1ed9t \u00fd ngh\u0129a r\u1ea5t quan tr\u1ecdng trong c\u00f4ng t\u00e1c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng. C\u00f9ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i, c\u00e1c v\u00f9ng n\u01b0\u1edbc \u00f4 nhi\u1ec5m n\u1eb7ng, c\u00f3 th\u1ec3 nh\u1edd th\u1ef1c v\u1eadt gi\u1ea3i tr\u1eeb ho\u1eb7c gi\u1ea3m b\u1edbt \u0111\u1ed9c t\u00ednh trong n\u01b0\u1edbc \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng kh\u00f4ng b\u1ecb \u00f4 nhi\u1ec5m.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u01b0\u1edbc \u00f4 nhi\u1ec5m th\u01b0\u1eddng c\u00f3 \u0111\u1ed9c t\u00ednh. Nh\u01b0ng c\u00f3 m\u1ed9t lo\u1ea1i th\u1ef1c v\u1eadt g\u1ecdi l\u00e0 h\u00e0nh n\u01b0\u1edbc, n\u00f3 v\u1eeba c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 ch\u1ea5t c\u00f3 \u0111\u1ed9c \u1edf trong n\u01b0\u1edbc l\u1ea1i v\u1eeba c\u00f3 th\u1ec3 gi\u1ebft ch\u1ebft vi khu\u1ea9n trong n\u01b0\u1edbc. Ch\u1ea5t h\u1eefu c\u01a1 trong \u0111\u1ea7m l\u1ea7y b\u1ecb \u00f4 nhi\u1ec5m \u0111\u1ee7 \u0111\u1ec3 gi\u1ebft ch\u1ebft lo\u00e0i c\u00e1 c\u00f3 [&hellip;]<\/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":[15,19],"tags":[],"class_list":["post-9724","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tu-nhien"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9724","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=9724"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9724\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9724"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9724"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9724"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}