{"id":735,"date":"2023-04-29T11:56:46","date_gmt":"2023-04-29T09:56:46","guid":{"rendered":"http:\/\/pont-dain.meteo01.fr\/mag\/?p=735"},"modified":"2023-07-29T12:52:49","modified_gmt":"2023-07-29T10:52:49","slug":"que-sont-les-pluies-acides","status":"publish","type":"post","link":"http:\/\/pont-dain.meteo01.fr\/mag\/2023\/04\/29\/que-sont-les-pluies-acides\/","title":{"rendered":"Que sont les pluies acides ?."},"content":{"rendered":"<p>Les pluies acides sont des pr\u00e9cipitations (pluie, neige, brouillard, ros\u00e9e) dont le pH est inf\u00e9rieur \u00e0 la normale, c\u2019est-\u00e0-dire inf\u00e9rieur \u00e0 5,6. Elles se forment lorsqu\u2019il y a une augmentation de l\u2019acidit\u00e9 dans l\u2019air en raison des \u00e9missions de gaz tels que le dioxyde de soufre (SO2) et les oxydes d\u2019azote (NOx) qui se combinent avec l\u2019oxyg\u00e8ne et l\u2019eau dans l\u2019atmosph\u00e8re pour former de l\u2019acide sulfurique (H2SO4) et de l\u2019acide nitrique (HNO3). Ces acides se m\u00e9langent ensuite avec l\u2019eau pour former des pr\u00e9cipitations acides. Les pluies acides peuvent avoir des effets nocifs sur les sols, les plantes, les animaux et les mat\u00e9riaux tels que les b\u00e2timents et les ponts.<\/p>\n<p>Elles ne sont pas rares et peuvent se produire dans diff\u00e9rentes parties du monde, mais leur fr\u00e9quence et leur intensit\u00e9 peuvent varier en fonction de divers facteurs tels que les \u00e9missions de polluants atmosph\u00e9riques, la topographie, les conditions m\u00e9t\u00e9orologiques, etc.<\/p>\n<p>Les r\u00e9gions les plus touch\u00e9es sont celles o\u00f9 les \u00e9missions de polluants atmosph\u00e9riques cit\u00e9es plus haut sont \u00e9lev\u00e9es. Les r\u00e9gions industrielles, les grandes villes et les r\u00e9gions situ\u00e9es \u00e0 proximit\u00e9 de centrales thermiques au charbon sont souvent touch\u00e9es par les pluies acides.<\/p>\n<p>Les pluies acides ont tout de m\u00eame diminu\u00e9 dans de nombreux pays en raison de l\u2019adoption de r\u00e9glementations et de technologies pour r\u00e9duire les \u00e9missions de polluants atmosph\u00e9riques. Cependant, dans certaines r\u00e9gions du monde, elles peuvent encore \u00eatre relativement courantes.<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>Les pluies acides sont des pr\u00e9cipitations (pluie, neige, brouillard, ros\u00e9e) dont le pH est inf\u00e9rieur \u00e0 la normale, c\u2019est-\u00e0-dire inf\u00e9rieur \u00e0 5,6. Elles se forment lorsqu\u2019il y a une augmentation de l\u2019acidit\u00e9 dans l\u2019air en <a class=\"mh-excerpt-more\" href=\"http:\/\/pont-dain.meteo01.fr\/mag\/2023\/04\/29\/que-sont-les-pluies-acides\/\" title=\"Que sont les pluies acides ?.\">[Lire la suite]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":664,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[48],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Que sont les pluies acides ?. - Le Mag - M\u00e9t\u00e9o Vall\u00e9e de l&#039;Ain - Suran<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/pont-dain.meteo01.fr\/mag\/2023\/04\/29\/que-sont-les-pluies-acides\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Que sont les pluies acides ?. - Le Mag - M\u00e9t\u00e9o Vall\u00e9e de l&#039;Ain - Suran\" \/>\n<meta property=\"og:description\" content=\"Les pluies acides sont des pr\u00e9cipitations (pluie, neige, brouillard, ros\u00e9e) dont le pH est inf\u00e9rieur \u00e0 la normale, c\u2019est-\u00e0-dire inf\u00e9rieur \u00e0 5,6. 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