{"id":63865,"date":"2026-02-05T12:24:45","date_gmt":"2026-02-05T12:24:45","guid":{"rendered":"https:\/\/site.itshrt.com\/worldnews\/wildfire-smoke-pollution-linked-to-tens-of-thousands-of-deaths-in-u-s-per-year-study-finds\/"},"modified":"2026-02-05T12:24:45","modified_gmt":"2026-02-05T12:24:45","slug":"wildfire-smoke-pollution-linked-to-tens-of-thousands-of-deaths-in-u-s-per-year-study-finds","status":"publish","type":"post","link":"https:\/\/site.itshrt.com\/worldnews\/wildfire-smoke-pollution-linked-to-tens-of-thousands-of-deaths-in-u-s-per-year-study-finds\/","title":{"rendered":"Wildfire smoke pollution linked to tens of thousands of deaths in U.S. per year, study finds"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<\/p>\n<div id=\"\">\n<p>Chronic exposure to pollution from wildfires has been linked to tens of thousands of deaths annually in the United States, according to a new study.<\/p>\n<p>The paper, <a href=\"https:\/\/www.science.org\/doi\/10.1126\/sciadv.adw5890\" target=\"_blank\" rel=\"nofollow noopener\">published Wednesday<\/a> in the journal Science Advances, found that from 2006 to 2020, long-term exposure to tiny particulates from wildfire smoke contributed to an average of 24,100 deaths a year in the lower 48 states.<\/p>\n<p>&#8220;Our message is: Wildfire smoke is very dangerous. It is an increasing threat to human health,&#8221; said Yaguang Wei, a study author and assistant professor in the department of environmental medicine at Icahn School of Medicine at Mount Sinai.<\/p>\n<p>Other scientists who have studied the death toll from\u00a0<a href=\"https:\/\/www.cbsnews.com\/newyork\/tag\/wildfire-smoke\/\" target=\"_blank\" rel=\"nofollow\" data-invalid-url-rewritten-http=\"\">wildfire smoke<\/a> were not surprised by the findings.<\/p>\n<p>&#8220;The estimates they&#8217;re coming up with are reasonable,&#8221; said Michael Jerrett, professor of environmental health science at the University of California, Los Angeles who was not involved in the study. &#8220;We need more of them. It&#8217;s only if we&#8217;re doing multiple studies with many different designs that we gain scientific confidence of our outcomes.&#8221;<\/p>\n<aside class=\"component list recirculation component--type-recirculation inject-freepress \">\n<\/aside>\n<h2>&#8220;These are real lives&#8221; being lost due to wildfire smoke<\/h2>\n<p>The paper&#8217;s researchers focused on deaths linked to chronic exposure to fine particulate matter, or PM2.5 \u2014 the main concern from wildfire smoke.<\/p>\n<p>These particles can lodge deep into lungs and enter the bloodstream. Short-term exposure can trigger coughing and itchy eyes, but longer term, they can make existing health problems worse and lead to a range of chronic and deadly health issues, including respiratory illness, cardiovascular and neurological diseases, and premature death.<\/p>\n<p>&#8220;Wildfire smoke PM2.5 has emerged as significant environmental hazard in the U.S., and it&#8217;s driven by increasing frequency and intensity of wildfires due to\u00a0<span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/climate-change\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">climate change<\/a><\/span>,&#8221; said Min Zhang, a postdoctoral student at the Icahn School and a study author.<\/p>\n<p>Along with decades of forest mismanagement, growing development in fire-prone areas has expanded the &#8220;urban wildland interface,&#8221; increasing wildfire risk with real consequences for human health, said Jerrett.<\/p>\n<p>&#8220;Nobody&#8217;s going to have &#8216;wildfire death&#8217; on their death certificate unless the fire actually burned them or a tree fell on them or something like that,&#8221; said Jerrett. &#8220;But many of the people that are dying from this exposure are ones that are already more vulnerable. These are real lives that are being lost. This is not some arbitrary abstract statistical concept.&#8221;<\/p>\n<p>The\u00a0<span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/los-angeles-fire-department-questions-slow-response-palisades-fire\/\" data-invalid-url-rewritten-http=\"\">fires<\/a><\/span>\u00a0that\u00a0<span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/los-angeles-wildfires-rebuilding-risks\/\" data-invalid-url-rewritten-http=\"\">ravaged Los Angeles<\/a><\/span>\u00a0in 2025 likely were deadlier than initially estimated, <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/los-angeles-wildfires-additional-deaths-study\/\" data-invalid-url-rewritten-http=\"\">according\u00a0 to research<\/a><\/span> published last August. In that study, researchers analyzed data on the number of deaths in Los Angeles County from Jan. 5 to Feb. 1, 2025 \u2014 the period when the\u00a0<span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/losangeles\/news\/palisades-fire-anniversary-rebuilding\/\" data-invalid-url-rewritten-http=\"\">Palisades<\/a><\/span>\u00a0and\u00a0<span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/eaton-fire-devastates-altadena-historic-black-community-history-book-lit-on-fire\/\" data-invalid-url-rewritten-http=\"\">Eaton<\/a><\/span>\u00a0<span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/losangeles\/news\/new-video-suggests-palisades-fire-ignition-point-burned-just-days-earlier\/\" data-invalid-url-rewritten-http=\"\">fires<\/a><\/span>\u00a0tore through the city \u2014 and estimated that 440 more deaths could be attributed to the fires, compared to the expected number based on data from previous years.\u00a0<\/p>\n<figure class=\"embed embed--type-image is-image embed--float-none embed--size-medium\">\n<p>      <span class=\"img embed__content\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets3.cbsnewsstatic.com\/hub\/i\/r\/2025\/12\/17\/fd12e4bb-090f-4c56-828d-64d11e6a2d70\/thumbnail\/620x407\/7341cca9802723422dca224ff57e809e\/gettyimages-2192359151.jpg#\" alt=\"US-WEATHER-FIRE \" height=\"407\" width=\"620\" class=\" lazyload\" srcset=\"https:\/\/assets3.cbsnewsstatic.com\/hub\/i\/r\/2025\/12\/17\/fd12e4bb-090f-4c56-828d-64d11e6a2d70\/thumbnail\/620x407\/7341cca9802723422dca224ff57e809e\/gettyimages-2192359151.jpg 1x, https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/r\/2025\/12\/17\/fd12e4bb-090f-4c56-828d-64d11e6a2d70\/thumbnail\/1240x814\/689e6ed594fe569a3257a58a05b29214\/gettyimages-2192359151.jpg 2x\" loading=\"lazy\"\/><\/span><figcaption class=\"embed__caption-container\">\n<p>                  <span class=\"embed__caption\">A firefighter douses flames during the Eaton fire in Pasadena, California on January 08, 2025.\u00a0<\/span><\/p>\n<p>                  <span class=\"embed__credit\"><\/p>\n<p>                JOSH EDELSON\/AFP via Getty Images<\/p>\n<p>                          <\/span><br \/>\n              <\/figcaption><\/figure>\n<p>A <a href=\"https:\/\/www.science.org\/doi\/pdf\/10.1126\/sciadv.adl1252\" target=\"_blank\" rel=\"nofollow noopener\">2024 study<\/a> estimated tens of thousands of people in California died premature deaths due to wildfire smoke from 2008 to 2018.<\/p>\n<p>That study estimated 2,305 people died from PM2.5 exposure in Sonoma County from 2008 to 2018 due to wildfire smoke, <span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/sanfrancisco\/news\/california-wildfire-smoke-study-deaths-longterm-effects\/\" data-invalid-url-rewritten-http=\"\">CBS News Bay Area reported<\/a><\/span>. The study also estimated 2,231 deaths in Santa Clara County, 2,063 deaths in Contra Costa County, and 2,057 deaths in Alameda County.<\/p>\n<h2>How researchers approached the study<\/h2>\n<p>The study&#8217;s authors analyzed the link between annual average exposure to PM2.5 from wildfire smoke and deaths by county in the lower 48. They used federal mortality data across 3,068 counties of all causes of death and several specific ones \u2014 circulatory, neurological and respiratory diseases, as well as mental and behavioral disorders, tumors and endocrine, nutritional and metabolic diseases.<\/p>\n<p>They also included deaths related to falls and transport accidents \u2014 which are unlikely to be linked to wildfire smoke \u2014 to ensure their other observations weren&#8217;t biased.<\/p>\n<p>&#8220;We found no association for car accidents and falls, while for other diseases we found statistically significant effects,&#8221; said Wei. Deaths from neurological diseases saw the biggest increase with exposure to these particulates.<\/p>\n<p>How pronounced the link was between particulate exposure and death varied by season and demographics. A stronger association appeared during cooler periods, and people in rural areas and younger communities appeared to be more vulnerable.<\/p>\n<p>Researchers also found that with every 0.1 microgram per cubic meter increase of PM2.5 across all these places, about 5,594 more people died each year.<\/p>\n<p>Jerrett said the study had the benefit of a large study population and that it includes most causes of deaths in the U.S. But he said the county-level data could have led to over or underestimates because wildfire smoke is very dynamic. &#8220;It doesn&#8217;t just blanket a large county all at once. There are going to be parts of the county that gets it a lot worse.&#8221;<\/p>\n<p>The study also did not account for other important factors, such as whether a person smokes, he said.<\/p>\n<h2>Rollbacks on climate policy pose risks, authors say<\/h2>\n<p>Kai Chen, an associate professor of environmental sciences at the Yale School of Public Health who has also studied the topic, said: &#8220;I really like that they examined both the smoke and nonsmoke PM2.5.&#8221; Various research has found that PM2.5 from wildfire smoke has bigger health impacts than pollution from other sources, such as car emissions, said Chen in an email, who was not involved in the study.<\/p>\n<p>The\u00a0<span class=\"link\"><a href=\"https:\/\/www.cbsnews.com\/news\/epa-proposes-rollback-rules-carbon-air-pollution-fossil-fuel-plants\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">Trump administration&#8217;s rollbacks in climate change policy<\/a><\/span>, even as the more destructive wildfires become more frequent in large part due to global warming, poses critical risks, the study&#8217;s authors said. Quantifying the deadly threat that PM2.5 from wildfires poses to human health shows the need for effective, urgent mitigation strategies, backed by Environmental Protection Agency monitoring and regulation, they said.<\/p>\n<p>&#8220;This highlights the importance of controlling wildfire sourced PM2.5, which is currently not regulated by the EPA as it is usually regarded as natural disasters,&#8221; Chen agreed.<\/p>\n<section class=\"content__body--footer\">\n<\/section>\n<p>  <!-- data-recirc-source=\"chartbeat\" --><\/p>\n<aside class=\"component list recirculation component--type-recirculation  component--type-recirculation-collection\">\n<div class=\"component__heading-wrapper recirc\">\n<h3 class=\"component__title\">ClimateWatch: Climate Change News &amp; Features<br \/>\n                          <a href=\"https:\/\/www.cbsnews.com\/feature\/climate-change\/?intcid=CNI-00-10aaa3a\" class=\"component__view-more component__view-more--lg\" data-invalid-url-rewritten-http=\"\"><br \/>\n                More<br \/>\n                <svg viewbox=\"0 0 32 32\" class=\"icon__caret-right\" aria-hidden=\"true\">\n                  <use xlink:href=\"#icon-caret-down\"\/>\n                <\/svg><br \/>\n              <\/a><br \/>\n                      <\/h3>\n<\/p><\/div>\n<div class=\"component__item-recirc-block\">\n<p><h3 class=\"component__title\">Go deeper with The Free Press<\/h3>\n<\/p><\/div>\n<\/aside>\n<section class=\"content__body--footer\">\n      <!-- tags --><\/p>\n<section class=\"content__tags\">\n<p class=\"content__tags__label\">In:<\/p>\n<\/section>\n<\/section><\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.cbsnews.com\/news\/wildfire-smoke-pollution-us-deaths-study\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chronic exposure to pollution from wildfires has been linked to tens of thousands of deaths annually in the United States,<\/p>\n","protected":false},"author":1,"featured_media":63866,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[1130,1134,7332],"class_list":["post-63865","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-us","tag-pollution","tag-wildfire","tag-wildfire-smoke"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Wildfire smoke pollution linked to tens of thousands of deaths in U.S. per year, study finds - World News<\/title>\n<meta name=\"description\" content=\"&amp;quot;Our message is: Wildfire smoke is very dangerous. 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