{"id":59672,"date":"2022-05-03T15:49:34","date_gmt":"2022-05-03T08:49:34","guid":{"rendered":"https:\/\/shopee.vn\/blog\/?p=59672"},"modified":"2022-06-07T18:42:40","modified_gmt":"2022-06-07T11:42:40","slug":"tai-sao-buc-xa-uv-cao-hon-vao-mua-he","status":"publish","type":"post","link":"https:\/\/shopee.vn\/blog\/tai-sao-buc-xa-uv-cao-hon-vao-mua-he\/","title":{"rendered":"Gi\u1ea3i \u0111\u00e1p th\u1eafc m\u1eafc t\u1ea1i sao b\u1ee9c x\u1ea1 UV cao h\u01a1n v\u00e0o m\u00f9a h\u00e8?"},"content":{"rendered":"

Tia UV hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi v\u1edbi c\u00e1i t\u00ean tia t\u1eed ngo\u1ea1i hay tia c\u1ef1c t\u00edm, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u00e0 m\u1ed9t lo\u1ea1i tia do m\u1eb7t tr\u1eddi sinh ra. Lo\u1ea1i tia n\u00e0y c\u00f3 t\u00e1c d\u1ee5ng t\u1ed5ng h\u1ee3p v\u00e0 cung c\u1ea5p l\u01b0\u1ee3ng Vitamin D cho c\u01a1 th\u1ec3. Tuy nhi\u00ean khi ti\u1ebfp x\u00fac trong kho\u1ea3ng th\u1eddi gian d\u00e0i c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn s\u1ee9c kh\u1ecfe. H\u00e3y c\u00f9ng Shopee gi\u1ea3i \u0111\u00e1p th\u1eafc m\u1eafc <\/b>t\u1ea1i sao b\u1ee9c x\u1ea1 UV cao h\u01a1n v\u00e0o m\u00f9a h\u00e8<\/b><\/a> nh\u00e9.<\/b><\/p>\n

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Tia UV l\u00e0 g\u00ec? Nh\u1eefng t\u00e1c h\u1ea1i nghi\u00eam tr\u1ecdng c\u1ee7a tia UV?<\/b><\/h2>\n

T\u00ecm hi\u1ec3u v\u1ec1 tia UV<\/b><\/h3>\n

Tia UV hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi v\u1edbi t\u00ean g\u1ecdi kh\u00e1c l\u00e0 tia t\u1eed ngo\u1ea1i ho\u1eb7c tia c\u1ef1c t\u00edm \u0111\u01b0\u1ee3c s\u1ea3n sinh b\u1edfi m\u1eb7t tr\u1eddi, k\u1ec3 c\u1ea3 khi b\u1ea7u tr\u1eddi c\u00f3 m\u01b0a ho\u1eb7c \u00e2m u th\u00ec n\u00f3 v\u1eabn xu\u1ea5t hi\u1ec7n. \u0110\u00e2y l\u00e0 m\u1ed9t lo\u1ea1i tia c\u00f3 b\u01b0\u1edbc s\u00f3ng r\u1ea5t th\u1ea5p, t\u1ea7n s\u1ed1 cao, m\u1eaft th\u01b0\u1eddng kh\u00f4ng th\u1ec3 n\u00e0o nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c.\u00a0<\/span><\/p>\n

Tia c\u1ef1c t\u00edm bao g\u1ed3m 3 lo\u1ea1i: A, B v\u00e0 C. Trong \u0111\u00f3 ph\u1ea3i k\u1ec3 \u0111\u1ebfn tia UVC l\u00e0 tia c\u00f3 n\u0103ng l\u01b0\u1ee3ng l\u1edbn nh\u1ea5t, c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i nghi\u00eam tr\u1ecdng cho c\u01a1 th\u1ec3 con ng\u01b0\u1eddi. Tuy nhi\u00ean, do \u0111\u01b0\u1ee3c h\u1ea5p th\u1ee5 b\u1edfi t\u1ea7ng kh\u00ed quy\u1ec3n ozone n\u00ean lo\u1ea1i tia n\u00e0y g\u1ea7n nh\u01b0 b\u1ecb ng\u0103n ch\u1eb7n ho\u00e0n to\u00e0n. Ngo\u00e0i ra, tia UVA chi\u1ebfm \u0111\u1ebfn 95% v\u00e0 tia UVB chi\u1ebfm 5% t\u1ed5ng l\u01b0\u1ee3ng tia c\u1ef1c t\u00edm chi\u1ebfu xu\u1ed1ng tr\u00e1i \u0111\u1ea5t.\u00a0<\/span><\/p>\n

\"T\u1ea1i
T\u1ea1i sao b\u1ee9c x\u1ea1 UV cao h\u01a1n v\u00e0o m\u00f9a h\u00e8? (Ngu\u1ed3n: exson.com.vn).<\/figcaption><\/figure>\n

T\u00e1c h\u1ea1i t\u1eeb tia UV<\/b><\/h3>\n

Tia UV v\u1eeba c\u00f3 t\u00e1c \u0111\u1ed9ng t\u00edch c\u1ef1c, v\u1eeba c\u00f3 t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c \u0111\u1ed1i v\u1edbi <\/span>s\u1ee9c kh\u1ecfe<\/span><\/a>. \u1ede c\u01b0\u1eddng \u0111\u1ed9 v\u1eeba ph\u1ea3i (ch\u1ec9 s\u1ed1 tia UV t\u1eeb 0 \u0111\u1ebfn 2) v\u00e0 ti\u1ebfp x\u00fac trong kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh, tia UV c\u00f3 th\u1ec3 gi\u00fap th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh t\u1ed5ng h\u1ee3p Vitamin D c\u1ee7a c\u01a1 th\u1ec3, l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a t\u1ebf b\u00e0o da, ch\u1ed1ng c\u00f2i x\u01b0\u01a1ng, h\u1ed7 tr\u1ee3 \u0111i\u1ec1u tr\u1ecb m\u1ed9t s\u1ed1 b\u1ec7nh ngo\u00e0i da,…<\/span><\/p>\n

B\u00ean c\u1ea1nh nh\u1eefng \u1ea3nh h\u01b0\u1edfng t\u00edch c\u1ef1c, tia UV c\u0169ng g\u00e2y ra nh\u1eefng \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c n\u1ebfu ti\u1ebfp x\u00fac th\u01b0\u1eddng xuy\u00ean v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 cao trong kho\u1ea3ng th\u1eddi gian d\u00e0i. C\u01b0\u1eddng \u0111\u1ed9 tia UV t\u1eeb 3 \u0111\u1ebfn 5 ch\u1ec9 g\u00e2y m\u1ed9t v\u00e0i t\u1ed5n h\u1ea1i th\u1ea5p. Tuy nhi\u00ean n\u1ebfu ch\u1ec9 s\u1ed1 tia UV \u1edf m\u1ee9c cao v\u00e0 ti\u1ebfp x\u00fac trong th\u1eddi gian c\u00f3 th\u1ec3 g\u00e2y nh\u1eefng \u1ea3nh h\u01b0\u1edfng v\u00f4 c\u00f9ng nghi\u00eam tr\u1ecdng. M\u1ed9t trong s\u1ed1 \u0111\u00f3 ph\u1ea3i k\u1ec3 \u0111\u1ebfn nh\u01b0:<\/span><\/p>\n