{"id":36740,"date":"2017-11-29T09:20:13","date_gmt":"2017-11-29T06:20:13","guid":{"rendered":"http:\/\/btv.md\/?p=36740"},"modified":"2017-11-28T17:23:13","modified_gmt":"2017-11-28T14:23:13","slug":"cresterea-nivelului-de-poluare-cu-ozon-amplifica-riscul-de-mortalitate","status":"publish","type":"post","link":"https:\/\/www.btv.md\/ro\/cresterea-nivelului-de-poluare-cu-ozon-amplifica-riscul-de-mortalitate\/","title":{"rendered":"Cre\u0219terea nivelului de poluare cu ozon amplific\u0103 riscul de mortalitate"},"content":{"rendered":"

Cre\u0219terea nivelului de poluare cu ozon \u00een mediul urban reprezint\u0103 un risc major pentru s\u0103n\u0103tate care conduce la \u00eenmul\u021birea deceselor ca urmare a accidentelor vasculare cerebrale \u0219i a afec\u021biunilor cardiace \u00een r\u00e2ndul locuitorilor vulnerabili, conform unui nou studiu realizat recent de o echip\u0103 de oameni de \u0219tiin\u021b\u0103 chinezi, informeaz\u0103 luni Xinhua.<\/strong><\/p>\n

Date prelevate din 272 de ora\u0219e din China \u00eentre anii 2013 \u0219i 2015 indic\u0103 ”dovezi concludente” care asociaz\u0103 situa\u021biile din ce \u00een ce mai frecvente de expunere pe termen scurt la poluarea cu ozon cu o \u00eenmul\u021bire a num\u0103rului de decese ca urmare a bolilor cardiovasculare, potrivit unei lucr\u0103ri publicate \u00een jurnalul ”Environmental Health Perspectives”, scrie\u00a0agerpres.ro<\/a>.<\/p>\n

Ozonul de la nivelul solului, cunoscut sub numele de smog fotochimic, este cauzat de interac\u021biunea luminii solare cu oxizii de nitrogen\/azot (NOx) \u0219i cu vaste cantit\u0103\u021bi de compu\u0219i organici volatili (COV) necontrola\u021bi rezulta\u021bi ca urmare a arderii combustibililor fosili sau a produc\u021biei de substan\u021be chimice.<\/p>\n

China duce un r\u0103zboi cu poluarea pentru a reduce \u0219i inversa daunele provocate mediului dup\u0103 aproape patru decenii de dezvoltare economic\u0103 sus\u021binut\u0103, \u00eens\u0103 cea mai mare parte a aten\u021biei s-a \u00eendreptat c\u0103tre reducerea concentra\u021biilor de particule \u00een suspensie din atmosfer\u0103, PM2,5, mai accentuate \u00een timpul iernii, precizeaz\u0103 sursa citat\u0103.<\/p>\n

Kan Haidong, director al Departamentului pentru s\u0103n\u0103tate public\u0103 \u00een cadrul Universit\u0103\u021bii Fudan din Shanghai, a declarat c\u0103 \u00een timp ce PM2,5 contribuie \u00eentr-o m\u0103sur\u0103 semnificativ\u0103 la num\u0103rul de cazuri de \u00eemboln\u0103viri din China, ozonul reprezint\u0103 la r\u00e2ndul s\u0103u un factor la fel de important \u00een regiuni precum delta r\u00e2ului Perla.<\/p>\n

”(Concentra\u021bia de) ozon a crescut \u00een ultimii ani \u00een China”, a spus Kan, care a fost implicat \u00een acest studiu. ”Spre deosebire de aceasta, (concentra\u021bia de) PM2,5 a sc\u0103zut cu circa 30% \u00een ultimii cinci ani”, a precizat el.<\/p>\n

Lauri Myllyvirta, reprezentant\u0103 din Beijing a organiza\u021biei de protec\u021bia mediului Greenpeace, a declarat c\u0103 o parte a cre\u0219terii considerabile a concentra\u021biei de ozon din atmosfer\u0103 poate fi explicat\u0103 tocmai prin succesul repurtat de China \u00een ceea ce prive\u0219te reducerea concentra\u021biei de particule \u00een suspensie PM2,5, fapt ce a determinat cre\u0219terea cantit\u0103\u021bii de lumin\u0103 solar\u0103 care a interac\u021bionat cu nivelurile ridicate de NOx \u0219i COV, pe fondul \u00eent\u00e2rzierii ac\u021biunilor pentru reducerea acestora.<\/p>\n

Expunerea medie la ozon \u00een China a crescut cu 17% \u00een perioada 2014-2017, fapt ce a condus la \u00eenmul\u021birea cu 12.000 a num\u0103rului de decese premature pe an, a estimat Greenpeace pe baza datelor de la Ministerul Mediului din China \u0219i din raportului Global Burden of Disease (GBD).<\/p>\n","protected":false},"excerpt":{"rendered":"

Cre\u0219terea nivelului de poluare cu ozon \u00een mediul urban reprezint\u0103 un risc major pentru s\u0103n\u0103tate care conduce la \u00eenmul\u021birea deceselor ca urmare a accidentelor vasculare cerebrale \u0219i a afec\u021biunilor cardiace \u00een r\u00e2ndul locuitorilor vulnerabili, conform unui nou studiu realizat recent de o echip\u0103 de oameni de \u0219tiin\u021b\u0103 chinezi, informeaz\u0103 luni Xinhua. Date prelevate din 272 […]<\/p>\n","protected":false},"author":4,"featured_media":35652,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6354],"tags":[],"class_list":["post-36740","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-externe-ro"],"yoast_head":"\nCre\u0219terea nivelului de poluare cu ozon amplific\u0103 riscul de mortalitate<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.btv.md\/ro\/cresterea-nivelului-de-poluare-cu-ozon-amplifica-riscul-de-mortalitate\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cre\u0219terea nivelului de poluare cu ozon amplific\u0103 riscul de mortalitate\" \/>\n<meta property=\"og:description\" content=\"Cre\u0219terea nivelului de poluare cu ozon \u00een mediul urban reprezint\u0103 un risc major pentru s\u0103n\u0103tate care conduce la \u00eenmul\u021birea deceselor ca urmare a accidentelor vasculare cerebrale \u0219i a afec\u021biunilor cardiace \u00een r\u00e2ndul locuitorilor vulnerabili, conform unui nou studiu realizat recent de o echip\u0103 de oameni de \u0219tiin\u021b\u0103 chinezi, informeaz\u0103 luni Xinhua. 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