Ng\u00e0y nay 99% \u00f4 t\u00f4 tr\u00ean th\u1ebf gi\u1edbi \u0111\u1ec1u s\u1eed d\u1ee5ng \u0111\u1ed9ng c\u01a1 x\u0103ng. \u00d4 t\u00f4 th\u00f4ng qua \u0111\u1ed1t x\u0103ng ho\u1eb7c d\u1ea7u diezel m\u00e0 \u0111\u01b0\u1ee3c \u0111\u1ea9y l\u00ean ph\u00eda tr\u01b0\u1edbc. Nh\u01b0ng khi \u0111\u1ed1t x\u0103ng ho\u1eb7c d\u1ea7u diezel \u0111\u1ec1u s\u1ea3n sinh ra nh\u1eefng lo\u1ea1i kh\u00ed c\u00f3 h\u1ea1i. Kh\u00ed th\u1ea3i c\u1ee7a \u00f4 t\u00f4 c\u00f2n g\u1ecdi l\u00e0 \u201ckh\u00f3i xe \u00f4 t\u00f4\u201d, n\u00f3i chung ch\u1ee9a c\u00e1c th\u00e0nh ph\u1ea7n sau: kh\u00ed CO (cacbon monoxit), c\u00e1c h\u1ee3p ch\u1ea5t cacbuahi\u0111ro, nitric, kh\u00f3i than, CO2 (cacbon \u0111ioxit), SO2 (sunfur\u01a1).<\/p>\n\n\n\n
CO l\u00e0 lo\u1ea1i kh\u00ed do x\u0103ng ch\u00e1y ch\u01b0a ho\u00e0n to\u00e0n. S\u1ee9c h\u1ea5p thu oxi c\u1ee7a n\u00f3 r\u1ea5t m\u1ea1nh. N\u00f3 k\u1ebft h\u1ee3p v\u1edbi h\u1ed3ng c\u1ea7u c\u1ee7a m\u00e1u trong c\u01a1 th\u1ec3, khi\u1ebfn cho m\u1ed9t l\u01b0\u1ee3ng l\u1edbn kh\u00ed oxi \u0111i v\u00e0o c\u01a1 th\u1ec3 b\u1ecb ch\u00fang h\u1ea5p thu, do \u0111\u00f3 r\u1ea5t c\u00f3 h\u1ea1i cho s\u1ee9c kh\u1ecfe. N\u1ebfu con ng\u01b0\u1eddi h\u00edt ph\u1ea3i nhi\u1ec1u kh\u00ed CO s\u1ebd c\u1ea3m th\u1ea5y \u0111au \u0111\u1ea7u, m\u1ec7t m\u1ecfi, th\u1eadm ch\u00ed h\u00f4n m\u00ea, t\u1eed vong. Ng\u1ed9 \u0111\u1ed9c kh\u00ed than t\u1ee9c l\u00e0 do h\u00edt ph\u1ea3i m\u1ed9t l\u01b0\u1ee3ng l\u1edbn kh\u00ed CO m\u00e0 g\u00e2y n\u00ean.<\/p>\n\n\n\n
C\u00e1c h\u1ee3p ch\u1ea5t cacbuahi\u0111ro l\u00e0 do nhi\u00ean li\u1ec7u c\u1ee7a \u00f4 t\u00f4 b\u1ed1c h\u01a1i, ho\u1eb7c do nhi\u00ean li\u1ec7u ch\u00e1y kh\u00f4ng ho\u00e0n to\u00e0n m\u00e0 sinh ra, n\u00f3 ch\u1ee9a 200 lo\u1ea1i ch\u1ea5t, trong \u0111\u00f3 c\u00f3 nhi\u1ec1u lo\u1ea1i g\u00e2y nguy hi\u1ec3m.<\/p>\n\n\n\n
C\u00e1c h\u1ee3p ch\u1ea5t c\u1ee7a kh\u00ed nit\u01a1 l\u00e0 nh\u1eefng h\u1ee3p ch\u1ea5t do nit\u01a1 v\u00e0 oxi d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao trong xilanh ph\u00e1t sinh ra c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc m\u00e0 th\u00e0nh. C\u00e1c h\u1ee3p ch\u1ea5t n\u00e0y c\u00f3 \u0111\u1ed9 \u0111\u1ed9c r\u1ea5t m\u1ea1nh, \u1ea3nh h\u01b0\u1edfng kh\u00f4ng t\u1ed1t \u0111\u1ebfn ng\u01b0\u1eddi v\u00e0 th\u1ef1c v\u1eadt, n\u00f3 c\u00f2n g\u00e2y ra m\u01b0a axit v\u00e0 s\u01b0\u01a1ng m\u00f9 quang h\u00f3a h\u1ecdc. S\u1ef1 ki\u1ec7n s\u01b0\u01a1ng m\u00f9 quang h\u00f3a h\u1ecdc l\u00e0m ch\u1ea5n \u0111\u1ed9ng th\u1ebf gi\u1edbi ph\u00e1t sinh n\u0103m 1955 \u1edf th\u00e0nh ph\u1ed1 Los Angeles, M\u1ef9 ch\u00ednh l\u00e0 do c\u00e1c h\u1ee3p ch\u1ea5t c\u1ee7a nit\u01a1 g\u00e2y n\u00ean.<\/p>\n\n\n\n
Kh\u00ed th\u1ea3i \u00f4 t\u00f4 c\u00f2n ch\u1ee9a nhi\u1ec1u lo\u1ea1i vi h\u1ea1t c\u1ee7a kh\u00f3i than, trong \u0111\u00f3 c\u00f3 h\u1ea1t than, c\u00e1c h\u00f3a ch\u1ea5t c\u1ee7a l\u01b0u hu\u1ef3nh, h\u1ee3p ch\u1ea5t c\u1ee7a ch\u00ec, nh\u1eefng lo\u1ea1i n\u00e0y l\u00e0 nh\u1eefng ch\u1ea5t g\u00e2y ra kh\u1ed1i u. Ngo\u00e0i kh\u00ed sunfur\u01a1 ra, kh\u00ed th\u1ea3i \u00f4 t\u00f4 \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng h\u00f4 h\u1ea5p c\u1ee7a ng\u01b0\u1eddi g\u00e2y nguy h\u1ea1i r\u1ea5t l\u1edbn, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c b\u1ec7nh vi\u00eam kh\u00ed qu\u1ea3n v\u00e0 b\u1ec7nh hen.<\/p>\n\n\n\n
Ngo\u00e0i ra, kh\u00ed th\u1ea3i \u00f4 t\u00f4 c\u00f2n s\u1ea3n sinh ra m\u1ed9t l\u01b0\u1ee3ng l\u1edbn kh\u00ed CO2. To\u00e0n th\u1ebf gi\u1edbi h\u00e0ng n\u0103m th\u1ea3i ra 30 t\u1ec9 t\u1ea5n kh\u00ed CO2, trong \u0111\u00f3 kh\u00ed do \u00f4 t\u00f4 th\u1ea3i ra chi\u1ebfm 7%. Kh\u00ed CO2 l\u00e0 nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu g\u00e2y n\u00ean hi\u1ec7u \u1ee9ng nh\u00e0 k\u00ednh.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Kh\u00ed th\u1ea3i \u00f4 t\u00f4; Kh\u00ed CO; C\u00e1c h\u1ee3p ch\u1ea5t c\u1ee7a nit\u01a1; S\u01b0\u01a1ng m\u00f9 quang<\/p>\n","protected":false},"excerpt":{"rendered":"
Ng\u00e0y nay 99% \u00f4 t\u00f4 tr\u00ean th\u1ebf gi\u1edbi \u0111\u1ec1u s\u1eed d\u1ee5ng \u0111\u1ed9ng c\u01a1 x\u0103ng. \u00d4 t\u00f4 th\u00f4ng qua \u0111\u1ed1t x\u0103ng ho\u1eb7c d\u1ea7u diezel m\u00e0 \u0111\u01b0\u1ee3c \u0111\u1ea9y l\u00ean ph\u00eda tr\u01b0\u1edbc. Nh\u01b0ng khi \u0111\u1ed1t x\u0103ng ho\u1eb7c d\u1ea7u diezel \u0111\u1ec1u s\u1ea3n sinh ra nh\u1eefng lo\u1ea1i kh\u00ed c\u00f3 h\u1ea1i. Kh\u00ed th\u1ea3i c\u1ee7a \u00f4 t\u00f4 c\u00f2n g\u1ecdi l\u00e0 \u201ckh\u00f3i xe […]<\/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-9348","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\/9348","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=9348"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9348\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}