M\u00e1y photocopy ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i. Ng\u00e0y nay kh\u00e1 nhi\u1ec1u c\u01a1 quan x\u00ed nghi\u1ec7p, tr\u01b0\u1eddng h\u1ecdc l\u1eadp c\u00e1c ph\u00f2ng in photocopy \u0111\u1ec3 in ch\u1ee5p c\u00e1c t\u00e0i li\u1ec7u chuy\u00ean m\u00f4n c\u1ea7n thi\u1ebft. C\u00f3 \u0111\u01b0\u1ee3c m\u00e1y photocopy ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 sao ch\u1ee5p t\u00e0i li\u1ec7u, b\u00e1o c\u00e1o, v\u0103n b\u1ea3n, h\u00ecnh v\u1ebd th\u1eadt ti\u1ec7n l\u1ee3i.<\/p>\n\n\n\n
Nh\u01b0ng khi l\u00e0m vi\u1ec7c trong ph\u00f2ng photocopy ph\u1ea3i h\u1ebft s\u1ee9c ch\u00fa \u00fd \u0111\u1ebfn vi\u1ec7c th\u00f4ng gi\u00f3 c\u0103n ph\u00f2ng. T\u1ea1i sao v\u1eady?<\/p>\n\n\n\n
Ch\u00fang ta \u0111\u1ec1u bi\u1ebft khi m\u00e1y photocopy l\u00e0m vi\u1ec7c th\u01b0\u1eddng x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng ph\u00f3ng \u0111i\u1ec7n cao \u00e1p, do \u0111\u00f3 c\u00f3 th\u1ec3 sinh ra kh\u00ed ozon, \u0111\u00f3 ch\u00ednh l\u00e0 ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m h\u1ebft s\u1ee9c nguy hi\u1ec3m cho s\u1ee9c kho\u1ebb. Ozon l\u00e0 “ng\u01b0\u1eddi th\u00e2n” c\u1ee7a oxy, l\u00e0 c\u00f9ng m\u1ed9t nguy\u00ean t\u1ed1 nh\u01b0ng kh\u00e1c h\u00ecnh d\u00e1ng. Oxy l\u00e0 ch\u1ea5t kh\u00ed kh\u00f4ng m\u00f9i v\u1ecb, ph\u00e2n t\u1eed oxy do hai nguy\u00ean t\u1eed oxy t\u1ea1o th\u00e0nh, c\u00f4ng th\u1ee9c ph\u00e2n t\u1eed l\u00e0 O2. C\u00f2n ozon l\u00e0 ch\u1ea5t kh\u00ed c\u00f3 m\u00f9i h\u1eafc. Ph\u00e2n t\u1eed ozon c\u00f3 3 nguy\u00ean t\u1eed oxy, c\u00f4ng th\u1ee9c ph\u00e2n t\u1eed l\u00e0 O3. Kh\u00ed ozon kh\u00f4ng ch\u1ec9 c\u00f3 m\u00f9i h\u1eafc m\u00e0 c\u00f2n c\u00f3 t\u00ednh ch\u1ea5t ho\u00e1 h\u1ecdc r\u1ea5t ho\u1ea1t \u0111\u1ed9ng. Ozon c\u00f3 t\u00ednh oxy ho\u00e1 r\u1ea5t m\u1ea1nh.<\/p>\n\n\n\n
M\u00e1y phototopy d\u00f9ng \u0111i\u1ec7n \u00e1p d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u, khi ph\u00f3ng \u0111i\u1ec7n cao \u00e1p s\u1ebd gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng l\u1edbn c\u00f3 th\u1ec3 bi\u1ebfn oxy th\u00e0nh ozon. Ph\u1ea3n \u1ee9ng x\u1ea3y ra nh\u01b0 sau: 3O2 = 2O3.<\/p>\n\n\n\n
Kh\u00f4ng ch\u1ec9 \u1edf m\u00e1y photocopy, m\u00e0 c\u00f2n c\u00f3 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00e1c nh\u01b0 m\u00e1y chi\u1ebfu b\u00f3ng, m\u00e1y thu h\u00ecnh c\u00f9ng c\u00e1c thi\u1ebft b\u1ecb ph\u00f3ng \u0111i\u1ec7n cao \u00e1p, thi\u1ebft b\u1ecb ph\u00e1t tia t\u1eed ngo\u1ea1i, m\u00e1y ph\u00e1t tia X\u2026 \u0111\u1ec1u c\u00f3 th\u1ec3 sinh ra ozon.<\/p>\n\n\n\n
V\u1edbi m\u1ed9t \u00edt l\u01b0\u1ee3ng ozon trong kh\u00f4ng kh\u00ed th\u00ec c\u00f3 t\u00e1c d\u1ee5ng di\u1ec7t khu\u1ea9n, di\u1ec7t vi tr\u00f9ng. \u1ede c\u00e1c r\u1eebng th\u00f4ng, kh\u00f4ng kh\u00ed trong l\u00e0nh do trong r\u1eebng th\u00f4ng c\u00f3 b\u1ea7u kh\u00f4ng kh\u00ed c\u00f3 m\u1ed9t \u00edt ozon do nh\u1ef1a th\u00f4ng ti\u1ebft ra. Nh\u01b0ng n\u1ebfu l\u01b0\u1ee3ng ozon l\u1ea1i v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n ti\u00eau chu\u1ea9n v\u1ec7 sinh s\u1ebd g\u00e2y t\u1ed5n h\u1ea1i cho \u0111\u1ea1i n\u00e3o, ph\u00e1 ho\u1ea1i c\u00f4ng n\u0103ng mi\u1ec5n d\u1ecbch b\u1ec7nh, g\u00e2y m\u1ea5t tr\u00ed nh\u1edb, g\u00e2y s\u1ef1 thay \u0111\u1ed5i m\u00e9o m\u00f3 cho nhi\u1ec5m s\u1eafc th\u1ec3 c\u1ee7a t\u1ebf b\u00e0o, g\u00e2y qu\u00e1i thai v\u1edbi c\u00e1c ph\u1ee5 n\u1eef c\u00f3 thai\u2026 Th\u1eadm ch\u00ed ozon c\u00f2n l\u00e0 ch\u1ea5t g\u00e2y ung th\u01b0, n\u00ean t\u00e1c h\u1ea1i c\u1ee7a ozon th\u1eadt kh\u00f4ng th\u1ec3 k\u1ec3 h\u1ebft \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n
\u0110\u01b0\u01a1ng nhi\u00ean l\u00e0 l\u01b0\u1ee3ng ozon do m\u00e1y photocoy sinh ra r\u1ea5t b\u00e9 n\u00ean n\u1ebfu ng\u1eabu nhi\u00ean m\u00e0 ti\u1ebfp x\u00fac v\u1edbi n\u00f3 th\u00ec ch\u01b0a c\u00f3 th\u1ec3 g\u00e2y nguy h\u1ea1i cho c\u01a1 th\u1ec3. Nh\u01b0ng n\u1ebfu ti\u1ebfp x\u00fac v\u1edbi ozon trong th\u1eddi gian d\u00e0i v\u00e0 n\u1ebfu kh\u00f4ng ch\u00fa \u00fd l\u00e0m th\u00f4ng gi\u00f3 c\u0103n ph\u00f2ng th\u00ec do ozon t\u1eadp h\u1ee3p nhi\u1ec1u trong ph\u00f2ng, \u0111\u1ebfn m\u1ee9c v\u01b0\u1ee3t ti\u00eau chu\u1ea9n an to\u00e0n th\u00ec s\u1ebd c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kho\u1ebb con ng\u01b0\u1eddi. Cho n\u00ean khi s\u1eed d\u1ee5ng m\u00e1y photocopy c\u1ea7n ph\u1ea3i ch\u00fa \u00fd \u0111\u1ebfn vi\u1ec7c th\u00f4ng gi\u00f3 cho ph\u00f2ng m\u00e1y.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Ozon; M\u00e1y photocpy.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
M\u00e1y photocopy ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i. Ng\u00e0y nay kh\u00e1 nhi\u1ec1u c\u01a1 quan x\u00ed nghi\u1ec7p, tr\u01b0\u1eddng h\u1ecdc l\u1eadp c\u00e1c ph\u00f2ng in photocopy \u0111\u1ec3 in ch\u1ee5p c\u00e1c t\u00e0i li\u1ec7u chuy\u00ean m\u00f4n c\u1ea7n thi\u1ebft. C\u00f3 \u0111\u01b0\u1ee3c m\u00e1y photocopy ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 sao ch\u1ee5p t\u00e0i li\u1ec7u, b\u00e1o c\u00e1o, v\u0103n b\u1ea3n, h\u00ecnh v\u1ebd th\u1eadt ti\u1ec7n l\u1ee3i. […]<\/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":[8,15],"tags":[],"class_list":["post-7966","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7966","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=7966"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7966\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7966"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7966"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7966"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}