{"id":4735,"date":"2025-12-01T13:36:42","date_gmt":"2025-12-01T13:36:42","guid":{"rendered":"https:\/\/www.andex-rhp.org\/?p=4735"},"modified":"2025-12-01T13:36:44","modified_gmt":"2025-12-01T13:36:44","slug":"tasa-de-acumulacion-de-microplasticos-atmosfericos-en-un-glaciar-tropical-andino-durante-un-ano-hidrologico","status":"publish","type":"post","link":"https:\/\/www.andex-rhp.org\/?p=4735","title":{"rendered":"Tasa de acumulaci\u00f3n de micropl\u00e1sticos atmosf\u00e9ricos en un glaciar tropical andino durante un a\u00f1o hidrol\u00f3gico"},"content":{"rendered":"\n

Por Julieth Chancay-S\u00e1nchez*\/<\/strong><\/p>\n\n\n\n

Este estudio analiza c\u00f3mo se est\u00e1n acumulando los micropl\u00e1sticos en la atm\u00f3sfera\u00a0 usando como \u201carchivo natural\u201d un glaciar de los Andes tropicales, el Antisana, en\u00a0 Ecuador. Los micropl\u00e1sticos son peque\u00f1os fragmentos de pl\u00e1stico, que se forman cuando\u00a0 los pl\u00e1sticos grandes se rompen en part\u00edculas diminutas. Debido a su tama\u00f1o y baja\u00a0 densidad, pueden viajar largas distancias por el aire y llegar incluso a lugares remotos\u00a0 como la Ant\u00e1rtida o los glaciares de alta monta\u00f1a.\u00a0\u00a0<\/p>\n\n\n\n

El Antisana es un volc\u00e1n cubierto por un casquete de hielo, ubicado a m\u00e1s de 5.500\u00a0 metros de altura. Aunque es un lugar aislado y lejos de grandes centros industriales,\u00a0 estudios anteriores ya hab\u00edan mostrado que en la superficie de su nieve hay\u00a0 micropl\u00e1sticos, lo que indica que el viento los transporta desde muy lejos.\u00a0\u00a0<\/p>\n\n\n\n

Para entender no solo si hay micropl\u00e1sticos, sino qu\u00e9 tan r\u00e1pido se acumulan en el aire  que respiramos, el equipo extrajo un n\u00facleo de hielo de 8 metros de profundidad en el  glaciar Antisana. Esta muestra de hielo funciona como una \u201chistoria en capas\u201d de lo que  ha ido cayendo desde la atm\u00f3sfera. Para saber cu\u00e1nto tiempo representaba ese n\u00facleo,  analizaron la composici\u00f3n isot\u00f3pica del agua (\u03b4\u00b9\u2078O), que cambia con las estaciones y  permite identificar un ciclo completo de lluvias y sequ\u00edas marcado por la climatolog\u00eda andina tropical. <\/p>\n\n\n\n

Se analizaron 35 secciones del n\u00facleo, cada una procesada mediante filtraci\u00f3n, flotaci\u00f3n  salina y espectroscop\u00eda micro-FTIR para identificar y clasificar las part\u00edculas pl\u00e1sticas. Se  hallaron 1762 micropl\u00e1sticos, entre fibras (81%) y fragmentos (19%).  <\/p>\n\n\n\n

Al relacionar la cantidad de micropl\u00e1sticos con la profundidad del hielo (es decir, con el  tiempo), observaron un patr\u00f3n claro: las capas m\u00e1s recientes, cerca de la superficie,  ten\u00edan muchas m\u00e1s part\u00edculas que las capas m\u00e1s antiguas. Corrigiendo por la  compactaci\u00f3n del hielo, estimaron que la concentraci\u00f3n aument\u00f3 de unos 140 a 292  micropl\u00e1sticos por litro a lo largo de un solo a\u00f1o hidrol\u00f3gico, es decir, un incremento de  aproximadamente 2,1 veces.  <\/p>\n\n\n\n

Este resultado indica que la atm\u00f3sfera no solo transporta micropl\u00e1sticos hasta la alta  monta\u00f1a, sino que se est\u00e1 enriqueciendo r\u00e1pidamente con ellos, incluso en la parte alta  de la troposfera, por encima de la capa donde las lluvias limpian m\u00e1s eficientemente el  aire. Esto tiene implicaciones para la salud de los ecosistemas de monta\u00f1a, para el agua  que consumen las poblaciones r\u00edo abajo y potencialmente para la salud humana, ya que  algunos de los pol\u00edmeros encontrados se han asociado a efectos t\u00f3xicos. En conjunto, el  estudio muestra que la atm\u00f3sfera funciona como un \u201creservorio global\u201d de  micropl\u00e1sticos y refuerza la urgencia de reducir las emisiones de pl\u00e1sticos y mantener  programas de monitoreo a largo plazo para entender mejor sus riesgos ambientales y  sanitarios.<\/p>\n\n\n\n

\"Gr\u00e1fico
Gr\u00e1fico resumen<\/figcaption><\/figure>\n\n\n\n
\n\n\n\n

*Facultad de Ciencias de la Tierra y Agua & Grupo de investigaci\u00f3n de Ciencias de la Tierra y Clima, Universidad Regional Amaz\u00f3nica Ikiam, Napo, Ecuador<\/p>\n\n\n\n

\n\n\n\n

1<\/sup>Chancay-S\u00e1nchez, J. E., Rozas-D\u00e1vila, A., Moulatlet, G. M., Capparelli, M. V., Rodr\u00edguez-Barroso, M. R., Albend\u00edn, G., Cabrera, M., Maisincho, L., Cabrera, M. E., Conicelli, B., & Valencia, B. G. (2025). Atmospheric microplastics accumulation rate in a tropical Andean glacier over a hydrological year.\u00a0The Science of the total environment<\/em>,\u00a01008<\/em>, 180973. Advance online publication.\u00a0https:\/\/doi.org\/10.1016\/j.scitotenv.2025.180973<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Por Julieth Chancay-S\u00e1nchez*\/ Este estudio analiza c\u00f3mo se est\u00e1n acumulando los micropl\u00e1sticos en la atm\u00f3sfera\u00a0 usando como \u201carchivo natural\u201d un glaciar de los Andes tropicales, el Antisana, en\u00a0 Ecuador. Los micropl\u00e1sticos son peque\u00f1os fragmentos de pl\u00e1stico, que se forman cuando\u00a0 los pl\u00e1sticos grandes se rompen en part\u00edculas diminutas. Debido a su tama\u00f1o y baja\u00a0 densidad, […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[16],"tags":[173,42,172],"class_list":["post-4735","post","type-post","status-publish","format-standard","hentry","category-lecturas","tag-glaciar-tropical","tag-hidrologia","tag-microplasticos","entry"],"yoast_head":"\nTasa de acumulaci\u00f3n de micropl\u00e1sticos atmosf\u00e9ricos en un glaciar tropical andino durante un a\u00f1o hidrol\u00f3gico - Programa Hidroclim\u00e1tico Regional para los Andes<\/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.andex-rhp.org\/?p=4735\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tasa de acumulaci\u00f3n de micropl\u00e1sticos atmosf\u00e9ricos en un glaciar tropical andino durante un a\u00f1o hidrol\u00f3gico - Programa Hidroclim\u00e1tico Regional para los Andes\" \/>\n<meta property=\"og:description\" content=\"Por Julieth Chancay-S\u00e1nchez*\/ Este estudio analiza c\u00f3mo se est\u00e1n acumulando los micropl\u00e1sticos en la atm\u00f3sfera\u00a0 usando como \u201carchivo natural\u201d un glaciar de los Andes tropicales, el Antisana, en\u00a0 Ecuador. 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