H\u00ecnh \u1ea2nh: C\u00e1c lo\u1ea1i ch\u1ea5t kh\u00ed c\u00f3 th\u1ec3 g\u00e2y t\u1ed5n h\u1ea1i t\u1edbi h\u1ec7 th\u1ed1ng sinh s\u1ea3n<\/em><\/p>\nM\u1ed9t s\u1ed1 nghi\u00ean c\u1ee9u khoa h\u1ecdc c\u0169ng ch\u1ec9 ra r\u1eb1ng nh\u1eefng ng\u01b0\u1eddi lao \u0111\u1ed9ng trong ng\u00e0nh h\u00e0n c\u00f3 nguy c\u01a1 h\u00f4 h\u1ea5p nghi\u00eam tr\u1ecdng, v\u1ea5n \u0111\u1ec1 th\u1ea7n kinh, sinh s\u1ea3n v\u00e0 ti\u00eau h\u00f3a. N\u0103m 2003, NIOSH c\u00f4ng b\u1ed1 m\u1ed9t b\u1ea3n b\u00e1o c\u00e1o ti\u1ebft l\u1ed9 c\u00f3 ti\u00eau \u0111\u1ec1 “\u1ea3nh h\u01b0\u1edfng s\u1ee9c kh\u1ecfe c\u1ee7a h\u00e0n”. N\u00f3 cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 cho ch\u00fang ta bi\u1ebft qu\u00e1 kh\u1ee9 \u0111\u00e3 t\u00ecm th\u1ea5y vi\u00eam ph\u1ebf qu\u1ea3n, kh\u00ed qu\u1ea3n v\u00e0 k\u00edch th\u00edch kh\u00e1c Nickel v\u00e0 hexavalent chromium b\u1ec7nh \u0111\u01b0\u1eddng h\u00f4 h\u1ea5p v\u1edbi s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u1ee7a ng\u01b0\u1eddi th\u1ee3 h\u00e0n. Kh\u00f3i h\u00e0n c\u00f3 nguy c\u01a1 t\u1ea1o ra ung th\u01b0 ph\u1ed5i v\u00e0 g\u00e2y t\u1ed5n h\u1ea1i cho h\u1ec7 th\u1ea7n kinh. Trong kh\u00f3i h\u00e0n c\u00f3 ch\u1ee9a niken, cr\u00f4m v\u00e0 mangan, c\u00e1c ch\u1ea5t \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 ch\u1ea5t g\u00e2y ung th\u01b0 ngh\u1ec1 nghi\u1ec7p ti\u1ec1m n\u0103ng. \u0110\u1eb7c bi\u1ec7t, ti\u1ebfp x\u00fac m\u00e3n t\u00ednh mangan c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c b\u1ec7nh nh\u01b0 b\u1ec7nh Parkinson.<\/p>\n
C\u0169ng theo nh\u01b0 b\u1ea3n b\u00e1o c\u00e1o n\u00e0y kh\u00f3i h\u00e0n l\u00e0 m\u1ed9t h\u1ed7n h\u1ee3p c\u1ee7a c\u00e1c h\u1ea1t r\u1ea5t nh\u1ecf (h\u01a1i) v\u00e0 c\u00e1c ch\u1ea5t kh\u00ed. Ch\u00fang c\u00f3 th\u1ec3 ch\u1ee9a cr\u00f4m, niken, asen, ami\u0103ng, mangan, cadmium, vv, c\u00f3 trong c\u00e1c lo\u1ea1i h\u1ee3p kim, v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c ch\u1ea5t trong s\u1ed1 \u0111\u00f3 l\u00e0 c\u1ef1c k\u1ef3 \u0111\u1ed9c h\u1ea1i v\u00e0 c\u00f3 th\u1ec3 \u0111e d\u1ecda t\u00ednh m\u1ea1ng. N\u00f3i chung, kh\u00f3i v\u00e0 c\u00e1c lo\u1ea1i ch\u1ea5t kh\u00ed n\u1ed5i l\u00ean t\u1eeb c\u01a1 s\u1edf v\u1eadt ch\u1ea5t ho\u1eb7c ch\u1ea5t ph\u1ee5. \u0110\u00e2y c\u00f3 th\u1ec3 l\u00e0 t\u1eeb s\u01a1n v\u00e0 ch\u1ea5t ph\u1ee7 tr\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i ho\u1eb7c v\u1eadt li\u1ec7u bao g\u1ed3m c\u00e1c \u0111i\u1ec7n c\u1ef1c, che ch\u1eafn kh\u00ed, ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc t\u1eeb h\u1ed3 quang, tia c\u1ef1c t\u00edm v\u00e0 nhi\u1ec7t, ho\u1eb7c trong c\u00e1c qu\u00e1 tr\u00ecnh kh\u00e1c , v\u1eadt t\u01b0 ti\u00eau hao, v\u00e0 ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m.<\/p>\n
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H\u00ecnh \u1ea2nh: Kh\u00f3i h\u00e0n g\u00e2y c\u00e1c k\u00edch \u1ee9ng v\u1ec1 h\u1ec7 h\u00f4 h\u1ea5p, th\u1eadm ch\u00ed g\u00e2y ung th\u01b0 ph\u1ed5i<\/em><\/p>\nKh\u00f3i h\u00e0n c\u00f3 th\u1ec3 g\u00e2y c\u00e1c k\u00edch \u1ee9ng v\u1ec1 m\u1eaft, m\u0169i, ng\u1ef1c v\u00e0 h\u1ec7 h\u00f4 h\u1ea5p. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c b\u1ec7nh vi\u00eam ph\u1ebf qu\u1ea3n, ph\u00f9 ph\u1ed5i, vi\u00eam ph\u1ed5i, c\u00e1c hi\u1ec7u \u1ee9ng \u0111\u01b0\u1eddng ru\u1ed9t nh\u01b0 bu\u1ed3n n\u00f4n, ch\u00e1n \u0103n, n\u00f4n m\u1eeda, \u0111au b\u1ee5ng, ti\u00eau h\u00f3a ch\u1eadm,\u2026vv<\/p>\n
Th\u1ee3 h\u00e0n c\u00f3 nguy c\u01a1 m\u1eafc ung th\u01b0 ph\u1ed5i, thanh qu\u1ea3n v\u00e0 ung th\u01b0 c\u00f3 th\u1ec3 ung th\u01b0 c\u1ea3 \u0111\u01b0\u1eddng ti\u1ebft ni\u1ec7u. H\u1ecd c\u00f3 th\u1ec3 m\u1eafc c\u00e1c v\u1ea5n \u0111\u1ec1 m\u00e3n t\u00ednh v\u1ec1 \u0111\u01b0\u1eddng h\u00f4 h\u1ea5p nh\u01b0 hen suy\u1ec5n, vi\u00eam ph\u1ed5i, kh\u00ed th\u0169ng, b\u1ee5i ph\u1ed5i silic, v\u00e0 siderosis. M\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 kh\u00e1c c\u00f3 li\u00ean quan kh\u00e1c l\u00e0 b\u1ec7nh tim, c\u00e1c b\u1ec7nh v\u1ec1 da, m\u1ea5t th\u00ednh gi\u00e1c, vi\u00eam d\u1ea1 d\u00e0y m\u00e3n t\u00ednh , lo\u00e9t d\u1ea1 d\u00e0y, t\u00e1 tr\u00e0ng.<\/p>\n
Ngo\u00e0i ra kh\u00f3i h\u00e0n v\u00e0 c\u00e1c lo\u1ea1i ch\u1ea5t kh\u00ed g\u00e2y t\u1ed5n h\u1ea1i h\u1ec7 th\u1ed1ng sinh s\u1ea3n c\u0169ng c\u00f3. Ch\u00fang l\u00e0 nguy\u00ean nh\u00e2n t\u1ea1o ra c\u00e1c b\u1ec7nh c\u00f3 li\u00ean quan g\u00e2y ra b\u1ec7nh. T\u1ea5t c\u1ea3 nh\u1eefng r\u1ee7i ro nh\u01b0 v\u1eady c\u00f3 th\u1ec3 di\u1ec5n ra trong tr\u01b0\u1eddng h\u1ee3p m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c c\u1ee7a th\u1ee3 h\u00e0n \u1edf trong khu v\u1ef1c c\u1ea5m.<\/p>\n
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H\u00ecnh \u1ea2nh: Nhi\u1ec1u ch\u1ea5t kh\u00ed ph\u00e1t sinh trong qu\u00e1 tr\u00ecnh h\u00e0n c\u1ef1c k\u1ef3 \u0111\u1ed9c h\u1ea1i v\u00e0 c\u00f3 th\u1ec3 \u0111e d\u1ecda t\u00ednh m\u1ea1ng<\/em><\/p>\nCadmium c\u00f3 trong kh\u00f3i h\u00e0n c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y t\u1eed vong ngay c\u1ea3 trong th\u1eddi gian ng\u1eafn. B\u1ee9c x\u1ea1 c\u1ef1c t\u00edm sinh ra b\u1edfi h\u00e0n ph\u1ea3n \u1ee9ng v\u1edbi oxy v\u00e0 nit\u01a1 c\u00f3 s\u1eb5n trong h\u00ecnh th\u00e0nh ozone v\u00e0 nit\u01a1 oxit trong kh\u00f4ng kh\u00ed. Ch\u00fang g\u00e2y ra c\u00e1c k\u00edch \u1ee9ng m\u0169i v\u00e0 c\u1ed5 h\u1ecdng v\u00e0 c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c b\u1ec7nh ph\u1ed5i nghi\u00eam tr\u1ecdng m\u00e0 c\u00f3 th\u1ec3 th\u1ec3 g\u00e2y t\u1eed vong. Tia c\u1ef1c t\u00edm c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c dung m\u00f4i hydrocarbon clo nh\u01b0 trichloroethylene \u0111\u1ec3 t\u1ea1o th\u00e0nh kh\u00ed phosgene c\u00f3 th\u1ec3 g\u00e2y t\u1eed vong, th\u1eadm ch\u00ed v\u1edbi ch\u1ec9 v\u1edbi s\u1ed1 l\u01b0\u1ee3ng nh\u1ecf.<\/p>\n