{"id":8698,"date":"2023-05-26T09:06:25","date_gmt":"2023-05-26T07:06:25","guid":{"rendered":"https:\/\/green-gate.eu\/blog\/uncategorized-cs\/uv-filtry\/"},"modified":"2024-03-15T00:57:59","modified_gmt":"2024-03-14T23:57:59","slug":"uv-filtry","status":"publish","type":"post","link":"https:\/\/green-gate.eu\/cs\/blog\/skodlive-latky\/uv-filtry\/","title":{"rendered":"UV filtry"},"content":{"rendered":"

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Je l\u00e9to a vy se chyst\u00e1te na pl\u00e1\u017e. Uv\u011bdom\u00edte si, \u017ee doma \u017e\u00e1dn\u00fd opalovac\u00ed kr\u00e9m nem\u00e1te, ale v\u00edte, \u017ee bez n\u011bj nem\u016f\u017eete vyj\u00edt na slunce. Jdete do obchodu s kosmetikou a m\u00e1te pocit, \u017ee je mo\u017en\u00e1 na\u010dase p\u0159estat sahat po obvykl\u00e9m SPF 50 (ochrann\u00fd faktor proti slune\u010dn\u00edmu z\u00e1\u0159en\u00ed), ani\u017e byste si p\u0159e\u010detli seznam slo\u017eek, a mo\u017en\u00e1 s\u00e1hnout po n\u011b\u010dem, co by mohlo b\u00fdt pro va\u0161i poko\u017eku m\u00e9n\u011b toxick\u00e9. Pou\u017e\u00edv\u00e1te ho p\u0159ece cel\u00e9 l\u00e9to. Tak\u017ee pro ty z v\u00e1s, kte\u0159\u00ed nejsou obezn\u00e1meni se sv\u011btem SPF, jsem tu, abych v\u00e1m to objasnila a snad v\u00e1s jednu nebo dv\u011b v\u011bci nau\u010dila. <\/p>\n

Za prv\u00e9, UV filtry lze rozd\u011blit do dvou skupin: chemick\u00e9 (organick\u00e9) a miner\u00e1ln\u00ed (anorganick\u00e9\/fyzik\u00e1ln\u00ed). Nejzn\u00e1m\u011bj\u0161\u00ed chemick\u00e9 UV filtry jsou oktinox\u00e1t a oxybenzon (tak\u00e9 zn\u00e1m\u00fd jako BP-3), zat\u00edmco nejzn\u00e1m\u011bj\u0161\u00edmi miner\u00e1ln\u00edmi UV filtry jsou oxid zine\u010dnat\u00fd a oxid titani\u010dit\u00fd. <\/p>\n

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Zdroj obr\u00e1zku: pixabay.com<\/p>\n

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S rostouc\u00edm po\u010dtem v\u00fdzkum\u016f se objevuj\u00ed d\u016fkazy, \u017ee chemick\u00e9 UV filtry maj\u00ed nebezpe\u010dn\u00e9 vlastnosti.<\/p>\n

Podle V\u011bdeck\u00e9ho v\u00fdboru pro bezpe\u010dnost spot\u0159ebitel\u016f: \u201ePou\u017eit\u00ed BP-3 jako UV filtru a\u017e do maxim\u00e1ln\u00ed koncentrace 6 % v produktech na ochranu proti slune\u010dn\u00edmu z\u00e1\u0159en\u00ed, a\u0165 u\u017e ve form\u011b t\u011blov\u00e9ho kr\u00e9mu, spreje na ochranu proti slune\u010dn\u00edmu z\u00e1\u0159en\u00ed nebo spreje s pumpi\u010dkou, nen\u00ed bezpe\u010dn\u00e9 pro spot\u0159ebitele.“ [1]<\/a> Vid\u00edte? Nejste r\u00e1di, \u017ee jste se zastavili a p\u0159e\u010detli si tento blogov\u00fd p\u0159\u00edsp\u011bvek?<\/p>\n

Kdy\u017e se BP-3 dostane do kontaktu s na\u0161\u00ed k\u016f\u017e\u00ed, proch\u00e1z\u00ed vrstvami k\u016f\u017ee, do na\u0161eho krevn\u00edho ob\u011bhu a odch\u00e1z\u00ed spolu s mo\u010d\u00ed. BP-3 tak\u00e9 snadno vstupuje do placenty a to m\u016f\u017ee zp\u016fsobit komplikace v prenat\u00e1ln\u00edm obdob\u00ed. Nov\u00e9 studie zjistily, \u017ee BP-3 m\u016f\u017ee m\u00edt vliv na embryon\u00e1ln\u00ed bu\u0148ky a vyv\u00edjej\u00edc\u00ed se mozek. Nejznepokojiv\u011bj\u0161\u00edm zji\u0161t\u011bn\u00edm v\u0161ak je, \u017ee pou\u017eit\u00ed BP-3 je spojov\u00e1no se zv\u00fd\u0161enou mo\u017enost\u00ed v\u00fdvojov\u00fdch abnormalit [2]<\/a>. Krom\u011b toho n\u011bkolik r\u016fzn\u00fdch studi\u00ed proveden\u00fdch v roce 2020 podporuje p\u0159edchoz\u00ed objevy, \u017ee BP-3 m\u016f\u017ee fungovat jako endokrinn\u00ed disruptor a m\u016f\u017ee tak\u00e9 potenci\u00e1ln\u011b zv\u00fd\u0161it riziko rakoviny prsu a endometri\u00f3zy [3]<\/a>. Vysko\u010dilo v\u00e1m v hlav\u011b velk\u00e9 NE chemick\u00fdm filtr\u016fm? To je dobr\u00fd za\u010d\u00e1tek, ale to nen\u00ed v\u0161echno, poj\u010fme se pod\u00edvat na ty miner\u00e1ln\u00ed. <\/p>\n

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Zdroj obr\u00e1zku: pixabay.com<\/p>\n

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Oxid zine\u010dnat\u00fd a oxid titani\u010dit\u00fd jsou miner\u00e1ln\u00ed UV filtry, kter\u00e9 se pou\u017e\u00edvaj\u00ed v miner\u00e1ln\u00edch opalovac\u00edch kr\u00e9mech nej\u010dast\u011bji ve form\u011b nano\u010d\u00e1stic. V sou\u010dasn\u00e9 dob\u011b nen\u00ed proveden dostate\u010dn\u00fd v\u00fdzkum, aby bylo mo\u017en\u00e9 dosp\u011bt k z\u00e1v\u011bru, zda nano\u010d\u00e1stice mohou zp\u016fsobit v\u00e1\u017en\u00e9 po\u0161kozen\u00ed na\u0161eho t\u011bla, a nav\u00edc neexistuje \u017e\u00e1dn\u00fd d\u016fkaz, \u017ee oxid zine\u010dnat\u00fd nebo oxid titani\u010dit\u00fd mohou pronikat p\u0159es na\u0161i k\u016f\u017ei ve velk\u00e9m mno\u017estv\u00ed. FDA a Evropsk\u00e1 unie proto dosp\u011bly k z\u00e1v\u011bru, \u017ee pou\u017eit\u00ed t\u011bchto dvou miner\u00e1l\u016f je bezpe\u010dn\u00e9. Mezin\u00e1rodn\u00ed agentura pro v\u00fdzkum rakoviny m\u00e1 jin\u00fd n\u00e1zor a klasifikovala oxid titani\u010dit\u00fd jako mo\u017en\u00fd karcinogen p\u0159i vdechov\u00e1n\u00ed. To je d\u016fvod, pro\u010d sprejov\u00e9 nebo pr\u00e1\u0161kov\u00e9 formy p\u0159\u00edpravk\u016f obsahuj\u00edc\u00edch oxid titani\u010dit\u00fd mohou p\u0159edstavovat riziko. To lze \u0159\u00edci i o sprejov\u00fdch nebo pr\u00e1\u0161kov\u00fdch produktech obsahuj\u00edc\u00edch oxid zine\u010dnat\u00fd [4]<\/a>. V\u00edm, \u017ee je to spousta informac\u00ed, ale v\u0161echny jsou velmi pot\u0159ebn\u00e9 a \u2026<\/p>\n

\u2026je\u0161t\u011b jsme neskon\u010dili! Maj\u00ed tak\u00e9 \u0161kodliv\u00fd vliv na na\u0161i planetu a zejm\u00e9na oce\u00e1ny! <\/p>\n

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Zdroj obr\u00e1zku: pixabay.com<\/p>\n

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Mnoho v\u00fdzkum\u016f proveden\u00fdch na UV filtrech, kter\u00e9 se pou\u017e\u00edvaj\u00ed v opalovac\u00edch kr\u00e9mech a dal\u0161\u00edch kosmetick\u00fdch produktech, nazna\u010duje dopad na zdrav\u00ed kor\u00e1l\u016f, od b\u011blen\u00ed a\u017e po zv\u00fd\u0161enou \u00famrtnost. Kv\u016fli t\u011bmto zji\u0161t\u011bn\u00edm p\u0159ijala Havaj v roce 2021 vl\u00e1dn\u00ed opat\u0159en\u00ed k z\u00e1kazu dvou chemick\u00fdch UV filtr\u016f, kter\u00e9 se b\u011b\u017en\u011b pou\u017e\u00edvaj\u00ed v opalovac\u00edch kr\u00e9mech (a o kter\u00fdch jsme mluvili) \u2013 oxybenzon a oktinox\u00e1t [5]<\/a>. P\u0159esto\u017ee jsme s rozhodnut\u00edm Havaje spokojeni, miner\u00e1ln\u00ed UV filtry, jako je oxid zine\u010dnat\u00fd, jsou extr\u00e9mn\u011b toxick\u00e9 pro kor\u00e1ly a vodn\u00ed organismy, a p\u0159esto je jejich pou\u017eit\u00ed st\u00e1le povoleno. <\/p>\n

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Informa\u010dn\u00ed list o UV filtrech<\/h4>\n
Co je to:<\/h5>\n