Trong m\u00f9a \u0111\u00f4ng r\u00e9t m\u01b0\u1edbt, ng\u01b0\u1eddi ta th\u01b0\u1eddng th\u00edch m\u1eb7c \u00e1o l\u00f4ng t\u01a1 \u0111\u1ec3 ch\u1ed1ng r\u00e9t. V\u00ec sao \u00e1o l\u00f4ng t\u01a1 l\u1ea1i \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng nh\u1ec9? Ngo\u00e0i nh\u1eefng t\u00ednh ch\u1ea5t m\u1eb7c v\u00e0o ng\u01b0\u1eddi nh\u1eb9 nh\u00e0ng ti\u1ec7n l\u1ee3i, d\u1ec5 ch\u1ecbu ra, \u00e1o l\u00f4ng t\u01a1 c\u00f2n c\u00f3 t\u00ednh n\u0103ng gi\u1eef \u1ea5m t\u1ed1t h\u01a1n \u00e1o b\u00f4ng th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n
Trong \u0111\u1eddi s\u1ed1ng h\u1eb1ng ng\u00e0y, c\u00e1c lo\u1ea1i v\u1eadt ch\u1ea5t c\u00f3 nh\u1eefng ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n nhi\u1ec7t kh\u00e1c nhau. Trong ch\u1ea5t r\u1eafn, ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n nhi\u1ec7t ch\u1ee7 y\u1ebfu l\u00e0 d\u1eabn nhi\u1ec7t. D\u1ef1a v\u00e0o m\u1ee9c \u0111\u1ed9 nhanh ch\u1eadm c\u1ee7a s\u1ef1 d\u1eabn nhi\u1ec7t, ng\u01b0\u1eddi ta chia v\u1eadt ch\u1ea5t th\u1ec3 r\u1eafn ra th\u00e0nh ch\u1ea5t d\u1eabn nhi\u1ec7t t\u1ed1t (nh\u01b0 s\u1eaft) v\u00e0 ch\u1ea5t d\u1eabn nhi\u1ec7t kh\u00f4ng t\u1ed1t (nh\u01b0 g\u1ed7). So v\u1edbi ch\u1ea5t r\u1eafn, t\u00ednh n\u0103ng d\u1eabn nhi\u1ec7t c\u1ee7a ch\u1ea5t l\u1ecfng k\u00e9m h\u01a1n. Khi \u0111un s\u00f4i m\u1ed9t si\u00eau n\u01b0\u1edbc tr\u00ean b\u1ebfp l\u00f2, nhi\u1ec7t l\u01b0\u1ee3ng ch\u1ee7 y\u1ebfu c\u1ee7a b\u1ebfp l\u00e0 d\u1ef1a v\u00e0o ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ed1i l\u01b0u nhi\u1ec7t \u0111\u1ec3 truy\u1ec1n t\u1edbi kh\u1eafp c\u1ea3 c\u00e1i si\u00eau n\u01b0\u1edbc. \u0110\u1eb7c tr\u01b0ng c\u1ee7a n\u00f3 l\u00e0 n\u01b0\u1edbc b\u1ecb \u0111un n\u00f3ng \u0111i l\u00ean b\u00ean trong si\u00eau, c\u00f2n n\u01b0\u1edbc ch\u01b0a \u0111un n\u00f3ng ch\u00ecm xu\u1ed1ng, c\u1ee9 l\u1eb7p l\u1ea1i nh\u01b0 th\u1ebf cho \u0111\u1ebfn khi c\u1ea3 si\u00eau n\u01b0\u1edbc s\u00f4i l\u00ean. S\u1ef1 truy\u1ec1n nhi\u1ec7t l\u01b0\u1ee3ng trong kh\u00f4ng kh\u00ed ngo\u00e0i c\u00e1ch \u0111\u1ed1i l\u01b0u nhi\u1ec7t ra, c\u00f2n c\u00f3 ph\u01b0\u01a1ng th\u1ee9c b\u1ee9c x\u1ea1 nhi\u1ec7t, t\u1ee9c l\u00e0 ngu\u1ed3n nhi\u1ec7t tr\u1ef1c ti\u1ebfp ph\u00e1t t\u00e1n nhi\u1ec7t l\u01b0\u1ee3ng v\u00e0o kh\u00f4ng kh\u00ed xung quanh, qua \u0111\u00f3 m\u00e0 \u0111\u1ea1t \u0111\u1ebfn m\u1ee5c \u0111\u00edch truy\u1ec1n nhi\u1ec7t.<\/p>\n\n\n\n
Trong m\u00f9a \u0111\u00f4ng, nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 ng\u01b0\u1eddi cao h\u01a1n nhi\u1ec7t \u0111\u1ed9 ngo\u00e0i tr\u1eddi. C\u01a1 th\u1ec3 ng\u01b0\u1eddi nh\u01b0 l\u00e0 m\u1ed9t ngu\u1ed3n nhi\u1ec7t, ch\u1ee7 y\u1ebfu th\u00f4ng qua ph\u01b0\u01a1ng th\u1ee9c \u0111\u1ed1i l\u01b0u nhi\u1ec7t v\u00e0 b\u1ee9c x\u1ea1 nhi\u1ec7t m\u00e0 t\u00e1n ph\u00e1t nhi\u1ec7t l\u01b0\u1ee3ng v\u00e0o kh\u00f4ng kh\u00ed xung quanh. \u0110\u1ec3 gi\u1eef \u1ea5m, ng\u01b0\u1eddi ta ph\u1ea3i t\u00ecm c\u00e1ch ng\u0103n c\u1ea3n ho\u1eb7c ch\u1eb7n l\u1ed1i \u0111i c\u1ee7a hai lo\u1ea1i ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n nhi\u1ec7t \u0111\u00f3, v\u1ec1 m\u1eb7t n\u00e0y, \u00e1o l\u00f4ng c\u00f3 \u0111\u01b0\u1ee3c t\u00ednh n\u0103ng \u01b0u vi\u1ec7t h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i y ph\u1ee5c kh\u00e1c.<\/p>\n\n\n\n
Nguy\u00ean li\u1ec7u ch\u1ee7 y\u1ebfu t\u1ea1o th\u00e0nh \u00e1o l\u00f4ng l\u00e0 l\u00f4ng \u0111\u1ed9ng v\u1eadt, nh\u01b0 l\u00f4ng v\u1ecbt. Tr\u1ea1ng th\u00e1i thi\u00ean nhi\u00ean c\u1ee7a ch\u00fang nh\u1eb9, m\u1ec1m, x\u1ed1p, kh\u00f4ng d\u1ec5 b\u1ecb d\u1ed3n n\u00e9n th\u00e0nh c\u1ee5c. M\u1eb7c \u00e1o l\u00f4ng v\u00e0o, l\u1edbp kh\u00f4ng kh\u00ed gi\u1eefa l\u00f4ng t\u01a1 ch\u1eb3ng nh\u1eefng c\u00f3 t\u00ednh n\u0103ng d\u1eabn nhi\u1ec7t k\u00e9m, m\u00e0 c\u00f2n do s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a l\u00f4ng, chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ed1i l\u01b0u trong l\u1edbp kh\u00f4ng kh\u00ed c\u0169ng ch\u1eadm l\u1ea1i r\u1ea5t nhi\u1ec1u, v\u00e0 l\u1eadp n\u00ean m\u1ed9t t\u1ea5m l\u00e1 ch\u1eafn xung quanh c\u01a1 th\u1ec3 ng\u01b0\u1eddi ng\u0103n c\u1ea3n b\u1ee9c x\u1ea1 nhi\u1ec7t, c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 t\u00e1n ph\u00e1t nhi\u1ec7t l\u01b0\u1ee3ng c\u01a1 th\u1ec3 ng\u01b0\u1eddi m\u1ed9t c\u00e1ch h\u1eefu hi\u1ec7u, gi\u00fap ch\u00fang ta duy tr\u00ec s\u1ef1 \u1ea5m \u00e1p c\u1ee7a th\u00e2n th\u1ec3.<\/p>\n\n\n\n
L\u1ee3i d\u1ee5ng nguy\u00ean l\u00ed gi\u1eef \u1ea5m c\u1ee7a \u00e1o l\u00f4ng, hi\u1ec7n nay ng\u01b0\u1eddi ta \u0111\u00e3 ch\u1ebf t\u1ea1o ra \u0111\u01b0\u1ee3c nhi\u1ec1u nguy\u00ean li\u1ec7u ho\u00e1 h\u1ecdc t\u1ed5ng h\u1ee3p, \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u0111\u1eddi s\u1ed1ng v\u00e0 trong th\u1ef1c ti\u1ec5n s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: \u00c1o l\u00f4ng t\u01a1; Gi\u1eef nhi\u1ec7t; D\u1eabn nhi\u1ec7t; \u0110\u1ed1i l\u01b0u nhi\u1ec7t; B\u1ee9c x\u1ea1 nhi\u1ec7t.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Trong m\u00f9a \u0111\u00f4ng r\u00e9t m\u01b0\u1edbt, ng\u01b0\u1eddi ta th\u01b0\u1eddng th\u00edch m\u1eb7c \u00e1o l\u00f4ng t\u01a1 \u0111\u1ec3 ch\u1ed1ng r\u00e9t. V\u00ec sao \u00e1o l\u00f4ng t\u01a1 l\u1ea1i \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng nh\u1ec9? Ngo\u00e0i nh\u1eefng t\u00ednh ch\u1ea5t m\u1eb7c v\u00e0o ng\u01b0\u1eddi nh\u1eb9 nh\u00e0ng ti\u1ec7n l\u1ee3i, d\u1ec5 ch\u1ecbu ra, \u00e1o l\u00f4ng t\u01a1 c\u00f2n c\u00f3 t\u00ednh n\u0103ng gi\u1eef \u1ea5m t\u1ed1t h\u01a1n \u00e1o b\u00f4ng th\u00f4ng th\u01b0\u1eddng. […]<\/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":[15,7],"tags":[],"class_list":["post-5668","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5668","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=5668"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5668\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}