{"id":1419,"date":"2026-09-22T01:42:45","date_gmt":"2026-09-22T05:42:45","guid":{"rendered":"https:\/\/canasanta.ca\/?p=1419"},"modified":"2026-09-22T01:43:44","modified_gmt":"2026-09-22T05:43:44","slug":"toronto-respira-el-peor-aire-del-mundo","status":"publish","type":"post","link":"https:\/\/canasanta.ca\/en\/ciencia\/toronto-respira-el-peor-aire-del-mundo\/","title":{"rendered":"TORONTO HAS THE WORST AIR QUALITY IN THE WORLD"},"content":{"rendered":"<h2><\/h2>\n<p>El 15 de julio de 2026 Toronto amaneci\u00f3 diferente. No era niebla. Tampoco una tormenta acerc\u00e1ndose desde el lago Ontario. Sobre la ciudad flotaba el humo transportado por los vientos desde los incendios que ard\u00edan en el noroeste de Ontario. A medida que avanz\u00f3 la ma\u00f1ana, la contaminaci\u00f3n aument\u00f3 hasta colocar a Toronto en el primer lugar del ranking en tiempo real de IQAir entre las principales ciudades monitorizadas del mundo, por delante en determinados momentos de urbes como Kinshasa, Delhi y Dub\u00e1i.<\/p>\n<p>La imagen resultaba casi absurda. Toronto, una ciudad rodeada por agua, parques y enormes extensiones verdes, aparec\u00eda convertida en una fotograf\u00eda propia de algunas de las capitales m\u00e1s contaminadas del planeta. Pero el enemigo no estaba en sus calles. Los incendios se encontraban muy lejos de all\u00ed.<\/p>\n<p>En el noroeste de Ontario hab\u00eda <strong>136 incendios activos<\/strong> la noche del 15 de julio; 63 estaban considerados fuera de control. Varias comunidades ind\u00edgenas recibieron \u00f3rdenes de evacuaci\u00f3n y algunas tuvieron que abandonar sus hogares mientras el fuego avanzaba. El humo, entretanto, sigui\u00f3 viajando hacia el sur hasta cubrir buena parte de Ontario y alcanzar regiones de Estados Unidos. <a href=\"https:\/\/globalnews.ca\/news\/11968132\/wildfire-smoke-toronto-july-16\/?utm_source=chatgpt.com\">Global News<\/a><\/p>\n<p>Ese detalle explica buena parte del problema. Las part\u00edculas producidas por un gran incendio forestal no respetan provincias, fronteras ni c\u00f3digos postales. Las m\u00e1s peque\u00f1as, conocidas como <strong>PM2.5<\/strong>, pueden permanecer suspendidas y desplazarse grandes distancias. Son precisamente una de las sustancias utilizadas para calcular el \u00edndice canadiense de riesgo de calidad del aire, junto con el ozono a nivel del suelo y el di\u00f3xido de nitr\u00f3geno. <a href=\"https:\/\/www.canada.ca\/en\/public-safety-canada\/news\/2026\/08\/responding-to-canadas-2026-wildfire-season.html?utm_source=chatgpt.com\">Canada<\/a><\/p>\n<p>Por eso aquel cielo naranja no era solamente un fen\u00f3meno visual espectacular. Environment Canada emiti\u00f3 advertencias de calidad del aire y recomend\u00f3 reducir el tiempo al aire libre. Entre los posibles efectos de la exposici\u00f3n al humo se encontraban irritaci\u00f3n de ojos, nariz y garganta, dolores de cabeza y tos, mientras que s\u00edntomas m\u00e1s graves pod\u00edan incluir dificultades respiratorias o dolor en el pecho. Los riesgos eran especialmente importantes para personas mayores, ni\u00f1os, embarazadas y quienes padec\u00edan determinadas enfermedades cr\u00f3nicas.<\/p>\n<p>La ciudad comenz\u00f3 entonces a adaptarse a algo que hasta hace pocos a\u00f1os muchos asociaban principalmente con regiones forestales remotas. Se cancelaron actividades al aire libre y el humo continu\u00f3 afectando Toronto durante el d\u00eda siguiente. Los servicios param\u00e9dicos informaron adem\u00e1s que, entre el 13 y el 15 de julio, las llamadas relacionadas con problemas respiratorios hab\u00edan aumentado un 24,1 % respecto del mismo per\u00edodo del a\u00f1o anterior, aunque advirtieron que esas emergencias pod\u00edan tener m\u00faltiples causas y no atribuyeron todas exclusivamente al humo.<\/p>\n<p>Hab\u00eda otro elemento inquietante: el calor. El episodio coincidi\u00f3 con temperaturas extraordinariamente elevadas. Posteriormente, el Gobierno de Canad\u00e1 describi\u00f3 las condiciones de mediados de julio en el noroeste de Ontario como un evento de calor extremo, con temperaturas superiores aproximadamente al 98 % de las registradas normalmente para ese per\u00edodo del a\u00f1o. El calor persistente, la baja humedad y las condiciones secas contribuyeron a crear el escenario para incendios intensos.<\/p>\n<p>Eso no significa que Toronto viva permanentemente bajo una nube t\u00f3xica. Ser\u00eda incorrecto afirmarlo. <strong>Hoy la situaci\u00f3n es completamente diferente:<\/strong> a las 12:00 a. m. del 22 de septiembre, Environment Canada registraba para Toronto un AQHI de <strong>2, \u201cLow Risk\u201d<\/strong>, y manten\u00eda ese mismo nivel previsto para el martes y el mi\u00e9rcoles.<\/p>\n<p>Precisamente ah\u00ed est\u00e1 lo extraordinario de aquella jornada. La misma ciudad que hoy puede respirar un aire considerado de bajo riesgo pudo aparecer, apenas unas semanas antes, encabezando durante horas una clasificaci\u00f3n mundial de contaminaci\u00f3n.<\/p>\n<p>Los incendios estaban lejos. El humo no.<\/p>\n<p>Y quiz\u00e1 esa sea la imagen que mejor resume lo ocurrido en Toronto: <em><strong>una ciudad que no estaba ardiendo descubri\u00f3 que tambi\u00e9n pod\u00eda respirar el incendio.<\/strong><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>El 15 de julio de 2026 Toronto amaneci\u00f3 diferente. No era niebla. Tampoco una tormenta acerc\u00e1ndose desde el lago Ontario. Sobre la ciudad flotaba el humo transportado por los vientos desde los incendios que ard\u00edan en el noroeste de Ontario. A medida que avanz\u00f3 la ma\u00f1ana, la contaminaci\u00f3n aument\u00f3 hasta colocar a Toronto en el [&hellip;]<\/p>\n","protected":false},"author":284226809,"featured_media":1424,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[3213,33205704],"tags":[33205733,33205747,33205744,33205707,33205732,33205708,33205734,33205740,33205725,33205742,33205736,33205746,33205738,33205735,33205748,33205743,33205728,33205737,33205741,33205745,33205618,33205739],"class_list":["post-1419","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia","category-medio-ambiente","tag-calidad-del-aire","tag-calidad-del-aire-toronto","tag-calor-extremo","tag-cambio-climatico","tag-canada","tag-clima-extremo","tag-contaminacion","tag-contaminacion-del-aire","tag-crisis-climatica","tag-environment-canada","tag-humo","tag-humo-de-incendios","tag-incendios-en-canada","tag-incendios-forestales","tag-incendios-ontario","tag-iqair","tag-medio-ambiente","tag-ontario","tag-pm2-5","tag-salud-ambiental","tag-toronto","tag-toronto-2026"],"acf":{"introduccion":"&nbsp;\r\n<h3><strong>Durante varias horas del 15 de julio, una de las ciudades m\u00e1s grandes y desarrolladas de Norteam\u00e9rica qued\u00f3 atrapada bajo una masa de humo procedente de incendios forestales que ard\u00edan a cientos de kil\u00f3metros. El cielo adquiri\u00f3 un color amarillento, la Torre CN comenz\u00f3 a desaparecer entre la bruma y Toronto lleg\u00f3 a encabezar el ranking de IQAir entre las grandes ciudades con peor calidad del aire del planeta. Dos meses despu\u00e9s, el aire ha vuelto a la normalidad. Pero lo ocurrido dej\u00f3 una advertencia dif\u00edcil de ignorar: para respirar el humo de un incendio ya no hace falta vivir cerca del fuego.<\/strong><\/h3>","fuentes_y_referencias":"<a href=\"https:\/\/weather.gc.ca\/airquality\/pages\/onaq-001_e.html?embed=true&amp;utm_source=chatgpt.com\">Environment Canada \u2014 Air Quality Health Index de Toronto<\/a>\r\n<a href=\"https:\/\/www.canada.ca\/en\/public-safety-canada\/news\/2026\/08\/the-government-of-canada-provides-an-update-regarding-the-2026-wildfire-season--august-update.html?utm_source=chatgpt.com\">Gobierno de Canad\u00e1 \u2014 balance de la temporada de incendios 2026<\/a>\r\n<a href=\"https:\/\/www.canada.ca\/en\/public-safety-canada\/news\/2026\/08\/responding-to-canadas-2026-wildfire-season.html?utm_source=chatgpt.com\">Gobierno de Canad\u00e1 \u2014 incendios, humo y AQHI<\/a>\r\n<a href=\"https:\/\/globalnews.ca\/news\/11966507\/toronto-air-quality-july-15\/?utm_source=chatgpt.com\">Global News \u2014 Toronto y el episodio del 15 de julio<\/a>\r\n<a href=\"https:\/\/globalnews.ca\/news\/11968132\/wildfire-smoke-toronto-july-16\/?utm_source=chatgpt.com\">Global News \u2014 persistencia del humo e incendios activos<\/a>","autor":[748]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>TORONTO RESPIRA EL PEOR AIRE DEL MUNDO - Ca\u00f1asanta<\/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:\/\/canasanta.ca\/en\/science\/toronto-respira-el-peor-aire-del-mundo\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TORONTO RESPIRA EL PEOR AIRE DEL MUNDO\" \/>\n<meta property=\"og:description\" content=\"El 15 de julio de 2026 Toronto amaneci\u00f3 diferente. 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