N\u0103m 1968, \u1edf B\u1eafc C\u1eedu, Nh\u1eadt B\u1ea3n, m\u1ecdi ng\u01b0\u1eddi l\u00e2m v\u00e0o m\u1ed9t tr\u1eadn kh\u1ee7ng ho\u1ea3ng v\u00ec g\u1eb7p m\u1ed9t c\u0103n b\u1ec7nh qu\u00e1i d\u1ecb ch\u01b0a t\u1eebng th\u1ea5y. Lo\u1ea1i b\u1ec7nh n\u00e0y \u0111\u1ebfn r\u1ea5t \u1ed3 \u1ea1t, b\u1eaft \u0111\u1ea7u t\u1eeb th\u00e1ng 3, s\u1ed1 b\u1ec7nh nh\u00e2n t\u0103ng l\u00ean r\u1ea5t nhanh, \u0111\u1ea1t \u0111\u1ebfn con s\u1ed1 1.400 ng\u01b0\u1eddi, \u0111\u1ebfn th\u00e1ng 7, s\u1ed1 b\u1ec7nh nh\u00e2n v\u01b0\u1ee3t qu\u00e1 5.000 ng\u01b0\u1eddi.<\/p>\n\n\n\n
B\u1ec7nh d\u1ecbch n\u00e0y r\u1ea5t \u0111\u1eb7c bi\u1ec7t. B\u1ec7nh nh\u00e2n ban \u0111\u1ea7u ch\u1ec9 s\u01b0ng m\u00ed m\u1eaft, qu\u1ea7ng m\u1eaft \u0111en, n\u01b0\u1edbc m\u1eaft ch\u1ea3y li\u00ean t\u1ee5c, l\u00f2ng b\u00e0n tay ra m\u1ed3 h\u00f4i, ti\u1ebfp theo l\u00e0 to\u00e0n th\u00e2n n\u1ed5i m\u1ea9n \u0111\u1ecf, ng\u1ee9a kh\u00f4ng th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c, nghi\u00eam tr\u1ecdng h\u01a1n c\u00f2n c\u1ea3m th\u1ea5y bu\u1ed3n n\u00f4n. M\u1ea5y ch\u1ee5c v\u1ea1n ng\u01b0\u1eddi b\u1ecb l\u00e2m b\u1ec7nh, trong \u0111\u00f3 c\u00f3 16 ng\u01b0\u1eddi ch\u1ebft r\u1ea5t nhanh.<\/p>\n\n\n\n
Qua \u0111i\u1ec1u tra v\u00e0 th\u1ef1c nghi\u1ec7m nhi\u1ec1u l\u1ea7n, c\u00e1c nh\u00e0 khoa h\u1ecdc cu\u1ed1i c\u00f9ng \u0111\u00e3 l\u00e0m s\u00e1ng t\u1ecf nguy\u00ean nh\u00e2n l\u00e0 do m\u1ed9t nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t d\u1ea7u th\u1ef1c ph\u1ea9m \u1edf v\u00f9ng n\u00e0y, v\u00ec mu\u1ed1n h\u1ea1 gi\u00e1 th\u00e0nh n\u00ean khi s\u1ea3n xu\u1ea5t \u0111\u00e3 s\u1eed d\u1ee5ng m\u1ed9t ch\u1ea5t ho\u00e1 h\u1ecdc \u0111\u1ed9c h\u1ea1i, \u0111\u00f3 l\u00e0 benzen poliflorua (benzen ch\u1ee9a nhi\u1ec1u flo). V\u00ec qu\u1ea3n l\u00ed kh\u00f4ng nghi\u00eam ng\u1eb7t, n\u00ean trong qu\u00e1 tr\u00ecnh kh\u1eed m\u00f9i, thi\u1ebft b\u1ecb \u0111\u00e3 b\u1ecb r\u00f2 r\u1ec9, khi\u1ebfn cho ch\u1ea5t benzen nhi\u1ec1u flo l\u1eabn v\u00e0o trong d\u1ea7u c\u00e1m. Do \u0111\u00f3 d\u1ea7u bi\u1ebfn th\u00e0nh thu\u1ed1c \u0111\u1ed9c. V\u00ec \u0103n ph\u1ea3i lo\u1ea1i d\u1ea7u n\u00e0y n\u00ean r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi b\u1ecb b\u1ec7nh. V\u1ec1 sau ng\u01b0\u1eddi ta g\u1ecdi s\u1ef1 ki\u1ec7n \u00f4 nhi\u1ec5m l\u00e0m ch\u1ea5n \u0111\u1ed9ng th\u1ebf gi\u1edbi n\u00e0y l\u00e0 ” s\u1ef1 ki\u1ec7n d\u1ea7u c\u00e1m “.<\/p>\n\n\n\n
Hung th\u1ee7 c\u1ee7a s\u1ef1 ki\u1ec7n d\u1ea7u c\u00e1m l\u00e0 ch\u1ea5t benzen poliflorua. Ch\u1ea5t n\u00e0y l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t nh\u00e2n t\u1ea1o, t\u00ednh ch\u1ea5t ho\u00e1 h\u1ecdc c\u1ee7a n\u00f3 r\u1ea5t \u1ed5n \u0111\u1ecbnh, kh\u00f4ng d\u1ec5 b\u1ecb oxi ho\u00e1, do \u0111\u00f3 c\u00f3 th\u1ec3 d\u00f9ng l\u00e0m ch\u1ea5t c\u00e1ch \u0111i\u1ec7n cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n, d\u1ea7u b\u00f4i tr\u01a1n v\u00e0 l\u00e0m ch\u1ea5t ph\u1ee5 gia. Ch\u1ea5t benzen poliflorua kh\u00f3 b\u1ecb sinh v\u1eadt ph\u00e2n hu\u1ef7, c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i l\u00e2u d\u00e0i trong n\u01b0\u1edbc. Th\u00f4ng qua t\u00e1c d\u1ee5ng l\u00e0m gi\u00e0u trong chu\u1ed7i th\u1ee9c \u0103n n\u01b0\u1edbc, ch\u1ea5t n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00edch lu\u1ef9 l\u1ea1i m\u1ed9t l\u01b0\u1ee3ng l\u1edbn trong c\u01a1 th\u1ec3 c\u00e1 v\u00e0 \u1ed1c. Ng\u01b0\u1eddi \u0103n ph\u1ea3i c\u00e1 v\u00e0 \u1ed1c \u0111\u00e3 b\u1ecb \u00f4 nhi\u1ec5m s\u1ebd ng\u1ed9 \u0111\u1ed9c. \u0110\u1ed9c t\u00ednh c\u1ee7a ch\u1ea5t benzen poliflorua r\u1ea5t l\u1edbn. N\u00f3 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn da, th\u1ea7n kinh v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a gan trong c\u01a1 th\u1ec3. Ngo\u00e0i ra, n\u00f3 c\u00f2n ph\u00e1 ho\u1ea1i s\u1ef1 h\u1ea5p thu \u0111\u00e0o th\u1ea3i c\u1ee7a x\u01b0\u01a1ng, g\u00e2y t\u1ed5n h\u1ea1i \u0111\u1ebfn x\u01b0\u01a1ng v\u00e0 r\u0103ng.<\/p>\n\n\n\n
S\u1ef1 ki\u1ec7n d\u1ea7u c\u00e1m \u0111\u00e3 g\u00e2y n\u00ean \u00fd th\u1ee9c c\u1ea3nh gi\u00e1c cho m\u1ecdi ng\u01b0\u1eddi. Ng\u01b0\u1eddi ta ph\u00e1t hi\u1ec7n n\u1ebfu h\u1eb1ng ng\u00e0y m\u1ed7i kil\u00f4gam th\u1ec3 tr\u1ecdng h\u1ea5p thu 67 \u00b5g th\u00ec ch\u1ec9 c\u1ea7n t\u1eeb 3 – 5 th\u00e1ng s\u1ebd b\u1ecb ng\u1ed9 \u0111\u1ed9c. Ng\u00e0y nay ch\u1ea5t benzen poliflorua \u0111\u00e3 b\u1ecb c\u1ea5m trong ph\u1ea1m vi to\u00e0n th\u1ebf gi\u1edbi kh\u00f4ng cho ph\u00e9p s\u1ea3n xu\u1ea5t, ti\u00eau th\u1ee5 v\u00e0 s\u1eed d\u1ee5ng.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: “S\u1ef1 ki\u1ec7n d\u1ea7u c\u00e1m”. Ch\u1ea5t benzen li\u00ean k\u1ebft nhi\u1ec1u flo.<\/p>\n","protected":false},"excerpt":{"rendered":"
N\u0103m 1968, \u1edf B\u1eafc C\u1eedu, Nh\u1eadt B\u1ea3n, m\u1ecdi ng\u01b0\u1eddi l\u00e2m v\u00e0o m\u1ed9t tr\u1eadn kh\u1ee7ng ho\u1ea3ng v\u00ec g\u1eb7p m\u1ed9t c\u0103n b\u1ec7nh qu\u00e1i d\u1ecb ch\u01b0a t\u1eebng th\u1ea5y. Lo\u1ea1i b\u1ec7nh n\u00e0y \u0111\u1ebfn r\u1ea5t \u1ed3 \u1ea1t, b\u1eaft \u0111\u1ea7u t\u1eeb th\u00e1ng 3, s\u1ed1 b\u1ec7nh nh\u00e2n t\u0103ng l\u00ean r\u1ea5t nhanh, \u0111\u1ea1t \u0111\u1ebfn con s\u1ed1 1.400 ng\u01b0\u1eddi, \u0111\u1ebfn th\u00e1ng 7, s\u1ed1 b\u1ec7nh […]<\/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":[15,17],"tags":[],"class_list":["post-9566","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-moi-truong"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9566","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=9566"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9566\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}