{"id":65643,"date":"2020-12-17T04:14:03","date_gmt":"2020-12-16T22:44:03","guid":{"rendered":"https:\/\/www.pranaair.com\/blog\/clean-air-act-50-years\/"},"modified":"2023-01-16T12:41:05","modified_gmt":"2023-01-16T07:11:05","slug":"clean-air-act-50-years","status":"publish","type":"post","link":"https:\/\/www.pranaair.com\/blog\/pt-pt\/clean-air-act-50-years\/","title":{"rendered":"50 anos gloriosos da Lei do Ar Limpo dos EUA em retrospecto"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #161616;color:#161616\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #161616;color:#161616\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.pranaair.com\/blog\/pt-pt\/clean-air-act-50-years\/#O_que_exigiu_a_necessidade_da_Lei_do_Ar_Limpo\" >O que exigiu a necessidade da Lei do Ar Limpo?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.pranaair.com\/blog\/pt-pt\/clean-air-act-50-years\/#O_ato_foi_capaz_de_verificar_todas_as_caixas_em_termos_de_impacto\" >O ato foi capaz de verificar todas as caixas em termos de impacto?<\/a><\/li><\/ul><\/nav><\/div>\n<p><em>Dezembro de 2020 marca a conclus\u00e3o de cinco d\u00e9cadas desde o in\u00edcio da Ag\u00eancia de Prote\u00e7\u00e3o Ambiental dos EUA e sua decis\u00e3o hist\u00f3rica de aprovar a Lei do Ar Limpo. O presidente Nixon, em 31 de dezembro de 1970, colocou o selo formal no ato. \u00c9 sem d\u00favida uma das decis\u00f5es ambientais mais revolucion\u00e1rias e promissoras j\u00e1 tomadas. Portanto, antes de seu 50\u00ba anivers\u00e1rio, decidimos olhar para a jornada do ato em retrospecto.<\/em><\/p>\n<p>O final do s\u00e9culo XX testemunhou uma ruptura nos equil\u00edbrios ambientais em todo o mundo. Os Estados Unidos da Am\u00e9rica criaram uma refer\u00eancia para o mundo ao serem um dos primeiros pa\u00edses a acolher a conserva\u00e7\u00e3o ambiental em seu esqueleto legislativo. Os EUA julgaram a crescente preocupa\u00e7\u00e3o com a polui\u00e7\u00e3o do ar ao aprovar a Lei do Ar Limpo h\u00e1 50 anos. Este ato hist\u00f3rico levou a uma grande melhoria no mais terr\u00edvel risco ambiental que o l\u00edder mundial enfrentava.<\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #ffff99;\"><a class=\"dt-pswp-item\" style=\"color: #ffff99;\" href=\"https:\/\/www.pranaair.com\/wp-content\/uploads\/2020\/12\/Air-Pollution-in-USA.png\" data-dt-img-description=\"\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14295\" src=\"https:\/\/www.pranaair.com\/wp-content\/uploads\/2020\/12\/Air-Pollution-in-USA.png\" alt=\"Air Pollution in USA\" width=\"640\" height=\"640\" srcset=\"https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Air-Pollution-in-USA.png 640w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Air-Pollution-in-USA-180x180.png 180w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Air-Pollution-in-USA-100x100.png 100w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Air-Pollution-in-USA-300x300.png 300w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Air-Pollution-in-USA-150x150.png 150w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/span><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"O_que_exigiu_a_necessidade_da_Lei_do_Ar_Limpo\"><\/span><span style=\"background-color: #008000; color: #ffff99;\" data-preserver-spaces=\"true\">O que exigiu a necessidade da Lei do Ar Limpo? <\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">As ind\u00fastrias surgiram e floresceram na primeira metade do s\u00e9culo XX. A industrializa\u00e7\u00e3o mete\u00f3rica com regulamenta\u00e7\u00e3o m\u00ednima aliada \u00e0 urbaniza\u00e7\u00e3o prejudicou a sa\u00fade do ar. Tamb\u00e9m levou a um aumento nas morbidades de enfisema e asma. Em meados do s\u00e9culo, a qualidade do ar havia ca\u00eddo a tal ponto que v\u00e1rias cidades dos Estados Unidos se tornaram sin\u00f4nimo de polui\u00e7\u00e3o atmosf\u00e9rica. A polui\u00e7\u00e3o monstruosa e imprevista em Los Angeles, Calif\u00f3rnia (1943) foi um desses incidentes que abalou profundamente as autoridades. As mortes devido \u00e0 polui\u00e7\u00e3o do ar tamb\u00e9m estavam aumentando. A polui\u00e7\u00e3o atmosf\u00e9rica de Nova York em 1966, respons\u00e1vel por pelo menos 169 mortes, atingiu todo o pa\u00eds com a brutal realidade da polui\u00e7\u00e3o do ar.<\/p>\n<p style=\"text-align: justify;\"><a class=\"dt-pswp-item\" href=\"https:\/\/www.pranaair.com\/wp-content\/uploads\/2020\/12\/smog-in-LA.jpg\" data-dt-img-description=\"\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14293\" src=\"https:\/\/www.pranaair.com\/wp-content\/uploads\/2020\/12\/smog-in-LA.jpg\" alt=\"smog in LA\" width=\"1920\" height=\"1440\" srcset=\"https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/smog-in-LA.jpg 1333w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/smog-in-LA-300x225.jpg 300w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/smog-in-LA-1024x768.jpg 1024w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/smog-in-LA-768x576.jpg 768w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/smog-in-LA-1536x1152.jpg 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/p>\n<p>Os n\u00edveis crescentes de poluentes atmosf\u00e9ricos, particularmente NO2 e SO2, tamb\u00e9m mobilizaram e aceleraram a incid\u00eancia de chuva \u00e1cida. Todas essas raz\u00f5es colocam em risco a sa\u00fade da atmosfera e dos cidad\u00e3os. Como desfecho, a Lei do Ar Limpo surgiu em 1970. Assim come\u00e7ou um legado que literal e figurativamente deu vida ao povo da Am\u00e9rica. As autoridades controlaram as ind\u00fastrias e endureceram os regulamentos em 1977. Eles fizeram mais emendas \u00e0 lei em 1990.<\/p>\n<p>Conseq\u00fcentemente, a qualidade do ar melhorou drasticamente na \u00e9poca da incurs\u00e3o do pa\u00eds no s\u00e9culo XXI. As concentra\u00e7\u00f5es de SO2 e NO2 ficaram sob controle e seguiram-se restri\u00e7\u00f5es estritas \u00e0s perigosas toxinas do ar. Um aumento nos n\u00edveis de polui\u00e7\u00e3o aumenta a demanda por gerenciamento eficiente da qualidade do ar e mitiga\u00e7\u00e3o de amea\u00e7as \u00e0 sa\u00fade de uma forma que n\u00e3o prejudique o crescimento econ\u00f4mico.<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"O_ato_foi_capaz_de_verificar_todas_as_caixas_em_termos_de_impacto\"><\/span><span style=\"background-color: #008000; color: #ffff99;\">O ato foi capaz de verificar todas as caixas em termos de impacto? <\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Este ano marca o 50\u00ba ano da aprova\u00e7\u00e3o da Lei do Ar Limpo. Este legado de mais de cinco d\u00e9cadas produziu alguns resultados not\u00e1veis. Sua implementa\u00e7\u00e3o pontual pela Ag\u00eancia de Prote\u00e7\u00e3o Ambiental dos EUA (EPA) levou a uma redu\u00e7\u00e3o substancial na ocorr\u00eancia de chuva \u00e1cida. Os EUA conseguiram essa fa\u00e7anha reduzindo as concentra\u00e7\u00f5es de poluentes atmosf\u00e9ricos. Por exemplo, os n\u00edveis de \u00f3xido nitroso e oz\u00f4nio em Los Angeles diminu\u00edram de 70 a 80% entre 1962 e 2012. O decl\u00ednio nos n\u00edveis de NO2 tamb\u00e9m catalisou a conserva\u00e7\u00e3o da camada protetora de oz\u00f4nio.<\/p>\n<p>Os EUA aprovaram a Lei do Ar Limpo com o objetivo central de reduzir a concentra\u00e7\u00e3o de poluentes nocivos. A Lei do Ar Limpo apresentou in\u00fameros outros benef\u00edcios econ\u00f4micos, ambientais e de sa\u00fade. De acordo com a EPA dos EUA, a Lei do Ar Limpo evitou mais de 230,000 mortes prematuras at\u00e9 2020. Houve uma diminui\u00e7\u00e3o na frequ\u00eancia de bronquite e asma. Os n\u00edveis de mon\u00f3xido de carbono e oz\u00f4nio ca\u00edram um fator de 74% e 21%, respectivamente, entre 1990 e 2018. A concentra\u00e7\u00e3o atmosf\u00e9rica de chumbo diminuiu 82% desde 2010. Essas redu\u00e7\u00f5es refletem na estrutura do solo mais saud\u00e1vel, corpos de \u00e1gua doce , e vegeta\u00e7\u00e3o.<\/p>\n<p>A lei tamb\u00e9m isentou os encargos financeiros que a crise a\u00e9rea vinha causando. A EPA estima benef\u00edcios no valor de aproximadamente US$ 2 trilh\u00f5es ao longo dos anos.<\/p>\n<p>A Lei do Ar Limpo tamb\u00e9m est\u00e1 em sincronia com seis dos dezessete Objetivos de Desenvolvimento Sustent\u00e1vel. Essas metas s\u00e3o definidas pelas Na\u00e7\u00f5es Unidas para tornar a Terra um lugar melhor para as pr\u00f3ximas gera\u00e7\u00f5es.<\/p>\n<p style=\"text-align: justify;\"><a class=\"dt-pswp-item\" href=\"https:\/\/www.pranaair.com\/wp-content\/uploads\/2020\/12\/Clean-Air-Act-Associated-Sustainable-development-goals-1.jpg\" data-dt-img-description=\"\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-14294\" src=\"https:\/\/www.pranaair.com\/wp-content\/uploads\/2020\/12\/Clean-Air-Act-Associated-Sustainable-development-goals-1.jpg\" alt=\"Clean Air Act - Associated Sustainable development goals (1)\" width=\"640\" height=\"640\" srcset=\"https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Clean-Air-Act-Associated-Sustainable-development-goals-1.jpg 640w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Clean-Air-Act-Associated-Sustainable-development-goals-1-180x180.jpg 180w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Clean-Air-Act-Associated-Sustainable-development-goals-1-100x100.jpg 100w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Clean-Air-Act-Associated-Sustainable-development-goals-1-300x300.jpg 300w, https:\/\/www.pranaair.com\/blog\/wp-content\/uploads\/2020\/12\/Clean-Air-Act-Associated-Sustainable-development-goals-1-150x150.jpg 150w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><em>Quer combater a polui\u00e7\u00e3o do ar? Confira nossa linha de produtos de qualidade do ar em <a href=\"https:\/\/www.pranaair.com\/pt-pt\/\" data-wplink-edit=\"true\">https:\/\/www.pranaair.com\/<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dezembro de 2020 marca a conclus\u00e3o de cinco d\u00e9cadas desde o in\u00edcio da Ag\u00eancia de Prote\u00e7\u00e3o Ambiental dos EUA e&hellip;<\/p>\n","protected":false},"author":6,"featured_media":65645,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[400,499,409],"tags":[],"class_list":["post-65643","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-pollution-pt-pt","category-article-pt-pt","category-outdoor-air-quality-pt-pt"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>50 anos gloriosos da Lei do Ar 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