Ha\u0300ng n\u0103m m\u00f4\u0303i khi \u0111\u00f4\u0309i mu\u0300a chu\u0301ng ta th\u01b0\u01a1\u0300ng pha\u0309i gi\u0103\u0323t sa\u0323ch se\u0303, g\u00e2\u0301p go\u0323n nh\u01b0\u0303ng b\u00f4\u0323 qu\u00e2\u0300n a\u0301o cu\u0303 va\u0300 c\u00e2\u0301t va\u0300o tu\u0309 cho n\u0103m sau, \u0111\u00ea\u0309 qu\u00e2\u0300n a\u0301o kh\u00f4ng bi\u0323 m\u00f4\u0301i mo\u0323t va\u0300 th\u01b0\u01a1\u0300ng \u0111\u0103\u0323t va\u0300o tu\u0309 qu\u00e2\u0300n a\u0301o m\u00f4\u0323t va\u0300i vi\u00ean b\u0103ng phi\u00ea\u0301n. Ta\u0323i sao pha\u0309i nh\u01b0 v\u00e2\u0323y?<\/p>\n\n\n\n
Nh\u01b0 ta \u0111a\u0303 bi\u00ea\u0301t, trong ho\u0300m va\u0300 tu\u0309 \u0111\u01b0\u0323ng qu\u00e2\u0300n a\u0301o co\u0301 r\u00e2\u0301t nhi\u00ea\u0300u m\u00f4\u0301i mo\u0323t, chu\u0301ng chuy\u00ean \u0103n nh\u01b0\u0303ng s\u01a1\u0323i xenlul\u00f4 t\u01b0\u0323 nhi\u00ean, vi\u0300 th\u00ea\u0301 chu\u0301ng c\u0103\u0301n tha\u0300nh nh\u01b0\u0303ng l\u00f4\u0303 nho\u0309 tr\u00ean qu\u00e2\u0300n a\u0301o. B\u0103ng phi\u00ea\u0301n co\u0301 th\u00ea\u0309 toa\u0309 ra m\u00f4\u0323t mu\u0300i r\u00e2\u0301t \u0111\u0103\u0323c bi\u00ea\u0323t, m\u00f4\u0301i mo\u0323t r\u00e2\u0301t s\u01a1\u0323 nh\u01b0\u0303ng mu\u0300i na\u0300y, do \u0111o\u0301 qu\u00e2\u0300n a\u0301o co\u0301 \u0111\u0103\u0323t b\u0103ng phi\u00ea\u0301n se\u0303 kh\u00f4ng s\u01a1\u0323 bi\u0323 la\u0300m ho\u0309ng.<\/p>\n\n\n\n
B\u0103ng phi\u00ea\u0301n la\u0300 m\u00f4\u0323t ch\u00e2\u0301t \u0111\u01b0\u01a1\u0323c chi\u00ea\u0301t xu\u00e2\u0301t t\u01b0\u0300 ca\u0300nh va\u0300 la\u0301 c\u00e2y long na\u0303o. B\u0103ng phi\u00ea\u0301n tinh khi\u00ea\u0301t co\u0301 vi\u0323 \u0111\u0103\u0301ng, h\u01b0\u01a1ng th\u01a1m, co\u0301 da\u0323ng r\u0103\u0301n trong su\u00f4\u0301t kh\u00f4ng ma\u0300u va\u0300 d\u00ea\u0303 bay h\u01a1i. Ngoa\u0300i vi\u00ea\u0323c du\u0300ng ch\u00f4\u0301ng m\u00f4\u0301i mo\u0323t cho qu\u00e2\u0300n a\u0301o, b\u0103ng phi\u00ea\u0301n co\u0300n \u0111\u01b0\u01a1\u0323c la\u0300m nguy\u00ean li\u00ea\u0323u trong c\u00f4ng nghi\u00ea\u0323p \u0111\u00ea\u0309 ch\u00ea\u0301 ta\u0323o thu\u00f4\u0301c n\u00f4\u0309, h\u01b0\u01a1ng li\u00ea\u0323u ch\u00e2\u0301t ba\u0309o qua\u0309n. Nh\u01b0\u0303ng vi\u00ean b\u0103ng phi\u00ea\u0301n \u0111\u01b0\u01a1\u0323c ba\u0301n tr\u00ean thi\u0323 tr\u01b0\u01a1\u0300ng \u0111\u00ea\u0300u la\u0300 da\u0323ng t\u00f4\u0309ng h\u01a1\u0323p. Nguy\u00ean li\u00ea\u0323u ch\u00ea\u0301 ta\u0323o l\u00ean chu\u0301ng la\u0300 m\u00f4\u0323t loa\u0323i ch\u00e2\u0301t \u0111\u01b0\u01a1\u0323c ch\u01b0ng c\u00e2\u0301t t\u01b0\u0300 nh\u01b0\u0323a th\u00f4ng, \u0111o\u0301 chi\u0301nh la\u0300 d\u00e2\u0300u th\u00f4ng.<\/p>\n\n\n\n
M\u00f4\u0323t th\u01a1\u0300i gian sau, vi\u00ean b\u0103ng phi\u00ea\u0301n se\u0303 t\u01b0\u0323 “th\u0103ng hoa”. Th\u0103ng hoa la\u0300 hi\u00ea\u0323n t\u01b0\u01a1\u0323ng ch\u00e2\u0301t r\u0103\u0301n bay h\u01a1i ma\u0300 kh\u00f4ng qua giai \u0111oa\u0323n no\u0301ng cha\u0309y. Kh\u00f4ng chi\u0309 co\u0301 b\u0103ng phi\u00ea\u0301n ma\u0300 i\u00f4\u0301t trong c\u00f4\u0300n i\u00f4\u0301t, v\u00f4nfram la\u0300m d\u00e2y to\u0301c bo\u0301ng \u0111e\u0300n, cacbon \u0111i\u00f4xi\u0301t da\u0323ng r\u0103\u0301n khan n\u01b0\u01a1\u0301c cu\u0303ng co\u0301 ti\u0301nh ch\u00e2\u0301t th\u0103ng hoa.<\/p>\n\n\n\n
M\u00f4\u0301i mo\u0323t th\u01b0\u01a1\u0300ng chi\u0309 \u0103n s\u01a1\u0323i xenlul\u00f4 t\u01b0\u0323 nhi\u00ean, n\u00ean chi\u0309 co\u0301 nh\u01b0\u0303ng sa\u0309n ph\u00e2\u0309m d\u00ea\u0323t may t\u01b0\u0300 lu\u0323a, l\u00f4ng c\u01b0\u0300u, b\u00f4ng, m\u01a1\u0301i bi\u0323 mo\u0323t \u0103n do \u0111o\u0301 c\u00e2\u0300n \u0111\u0103\u0323t b\u0103ng phi\u00ea\u0301n. Nh\u01b0\u0303ng loa\u0323i s\u01a1\u0323i t\u00f4\u0309ng h\u01a1\u0323p th\u01b0\u01a1\u0300ng kh\u00f4ng bi\u0323 m\u00f4\u0301i mo\u0323t \u0103n n\u00ean kh\u00f4ng c\u00e2\u0300n du\u0300ng b\u0103ng phi\u00ea\u0301n.<\/p>\n\n\n\n
Tr\u01b0\u01a1\u0301c \u0111\u00e2y, ng\u01b0\u01a1\u0300i ta th\u01b0\u01a1\u0300ng du\u0300ng ho\u0300m la\u0300m t\u01b0\u0300 g\u00f4\u0303 long na\u0303o\u0111\u00ea\u0309 \u0111\u01b0\u0323ng qu\u00e2\u0300n a\u0301o vi\u0300 ch\u00e2\u0301t sinh ho\u0301a co\u0301 trong g\u00f4\u0303 long na\u0303o cu\u0303ng gi\u00f4\u0301ng nh\u01b0 b\u0103ng phi\u00ea\u0301n co\u0301 ta\u0301c du\u0323ng ng\u01b0\u0300a m\u00f4\u0301i mo\u0323t.<\/p>\n\n\n\n
Ngoa\u0300i ra, ng\u01b0\u01a1\u0300i ta th\u01b0\u01a1\u0300ng du\u0300ng m\u00f4\u0323t loa\u0323i d\u01b0\u01a1\u0323c ph\u00e2\u0309m \u0111\u01b0\u01a1\u0323c ch\u00ea\u0301 ta\u0323o t\u01b0\u0300 na\u0301ptalin \u0111\u00ea\u0309 ch\u00f4\u0301ng m\u00f4\u0301i mo\u0323t. Na\u0301ptalin la\u0300 m\u00f4\u0323t loa\u0323ich\u00e2\u0301t kha\u0301c v\u01a1\u0301i b\u0103ng phi\u00ea\u0301n. No\u0301 \u0111\u01b0\u01a1\u0323c \u0111i\u00ea\u0300u ch\u00ea\u0301 b\u0103\u0300ng ca\u0301ch: du\u0300ng than \u0111\u00ea\u0309 sa\u0309n xu\u00e2\u0301t ra khi\u0301 \u0111\u00f4\u0301t va\u0300 cacbon co\u0301 sa\u0309n ph\u00e2\u0309m phu\u0323 la\u0300 h\u0103\u0301c i\u0301n. T\u01b0\u0300 h\u0103\u0301c i\u0301n ng\u01b0\u01a1\u0300i ta co\u0301 th\u00ea\u0309 ch\u01b0ng c\u00e2\u0301t ra nguy\u00ean li\u00ea\u0323u na\u0301ptalin. Na\u0301ptalin la\u0300 m\u00f4\u0323t loa\u0323i tinh th\u00ea\u0309 ma\u0300u tr\u0103\u0301ng, d\u00ea\u0303 bay h\u01a1i, co\u0301 mu\u0300i \u0111\u0103\u0323c tr\u01b0ng cu\u0303ng co\u0301 th\u00ea\u0309 ch\u00f4\u0301ng m\u00f4\u0301i mo\u0323t. Th\u00f4ng th\u01b0\u01a1\u0300ng na\u0301ptalin kh\u00f4ng ph\u00e2n hu\u0309y h\u00ea\u0301t. Sau khi “th\u0103ng hoa”, ta\u0323p ch\u00e2\u0301t l\u01b0u la\u0323i tr\u00ean qu\u00e2\u0300n a\u0301o se\u0303 g\u00e2y nh\u01b0\u0303ng v\u00ea\u0301t \u00f4\u0301 va\u0300ng, a\u0309nh h\u01b0\u01a1\u0309ng t\u01a1\u0301i ve\u0309 \u0111e\u0323p cu\u0309a qu\u00e2\u0300n a\u0301o. Vi\u0300 th\u00ea\u0301 ng\u01b0\u01a1\u0300i ta pha\u0309i du\u0300ng gi\u00e2\u0301y \u0111\u00ea\u0309 bo\u0323c na\u0301ptalin tr\u01b0\u01a1\u0301c khi cho va\u0300o tu\u0309 ho\u0103\u0323c ho\u0300m \u0111\u01b0\u0323ng qu\u00e2\u0300n a\u0301o. Nh\u01b0\u0303ng nghi\u00ean c\u01b0\u0301u nga\u0300y nay \u0111a\u0303 cho th\u00e2\u0301y mu\u0300i na\u0301ptalin kh\u00f4ng t\u00f4\u0301t v\u01a1\u0301i c\u01a1 th\u00ea\u0309. Vi\u0300 th\u00ea\u0301 ta\u0323i nhi\u00ea\u0300u qu\u00f4\u0301c gia ng\u01b0\u01a1\u0300i ta \u0111a\u0303 c\u00e2\u0301m s\u01b0\u0309 du\u0323ng na\u0301ptalin \u0111\u00ea\u0309 ch\u00f4\u0301ng m\u00f4\u0301i mo\u0323t cho qu\u00e2\u0300n a\u0301o.<\/p>\n\n\n\n
Co\u0300n b\u0103ng phi\u00ea\u0301n la\u0300 m\u00f4\u0323t loa\u0323i thu\u00f4\u0301c tinh khi\u00ea\u0301t, khi cho va\u0300o tu\u0309 qu\u00e2\u0300n a\u0301o no\u0301 kh\u00f4ng \u0111\u00ea\u0309 la\u0323i nh\u01b0\u0303ng v\u00ea\u0301t ma\u0300u, do \u0111o\u0301 co\u0301 th\u00ea\u0309 tr\u01b0\u0323c ti\u00ea\u0301p \u0111\u0103\u0323t l\u00ean qu\u00e2\u0300n a\u0301o.<\/p>\n","protected":false},"excerpt":{"rendered":"
Ha\u0300ng n\u0103m m\u00f4\u0303i khi \u0111\u00f4\u0309i mu\u0300a chu\u0301ng ta th\u01b0\u01a1\u0300ng pha\u0309i gi\u0103\u0323t sa\u0323ch se\u0303, g\u00e2\u0301p go\u0323n nh\u01b0\u0303ng b\u00f4\u0323 qu\u00e2\u0300n a\u0301o cu\u0303 va\u0300 c\u00e2\u0301t va\u0300o tu\u0309 cho n\u0103m sau, \u0111\u00ea\u0309 qu\u00e2\u0300n a\u0301o kh\u00f4ng bi\u0323 m\u00f4\u0301i mo\u0323t va\u0300 th\u01b0\u01a1\u0300ng \u0111\u0103\u0323t va\u0300o tu\u0309 qu\u00e2\u0300n a\u0301o m\u00f4\u0323t va\u0300i vi\u00ean b\u0103ng phi\u00ea\u0301n. Ta\u0323i sao pha\u0309i nh\u01b0 v\u00e2\u0323y? Nh\u01b0 ta \u0111a\u0303 bi\u00ea\u0301t, […]<\/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":[1,15],"tags":[],"class_list":["post-11575","post","type-post","status-publish","format-standard","hentry","category-general","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11575","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=11575"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11575\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=11575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=11575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=11575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}