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The mucus and hairs in your nose can trap larger particles, and the mucus and cilia in your upper airway can catch some as well, said Luke Montrose, an environmental toxicologist at Colorado State University. But some PM2.5 or smaller particles can bypass these defenses and penetrate the deepest parts of your lungs. Dr. Montrose […] More
Here’s how to tell if you’re one of them.In spring 2020, Jazzminn Hein received an automated phone call from The Ottawa Hospital in Canada, asking if she or anyone in her household had experienced wheezing, shortness of breath or other breathing problems in recent months. The question caught her attention: Just a week earlier, Ms. Hein, then 24, had gone on a stroll with her mother-in-law and newborn only to end up feeling like her chest was burning.“I realized that I had had breathing issues from a very young age,” Ms. Hein said. As a child, she often had to catch her breath on the sidelines during gym class. As an adult, she frequently had to pause after carrying laundry up the stairs. So Ms. Hein pressed “1” to receive a follow-up call from a nurse.A few months later, as part of a study conducted by researchers at the University of Ottawa, a doctor diagnosed Ms. Hein with asthma.Estimates suggest that 20 to 70 percent of people with asthma or another group of conditions called chronic obstructive pulmonary disease that causes similar symptoms, go undiagnosed.To look for patients with those diseases, researchers placed automated calls to more than a million households across Canada asking about breathing issues. Many people hung up. But the research team talked to more than 38,000 people experiencing such symptoms, and ultimately found more than 500 patients, including Ms. Hein, with either undiagnosed asthma or C.O.P.D who could participate in their clinical trial.Roughly half were told to follow up with their primary care provider and received standard care, such as a short-acting inhaler to be used as needed. The other half saw pulmonologists who frequently prescribed better, long-acting medication and worked with an educator who taught patients how to properly use an inhaler and avoid allergens, provided support to quit smoking, gave exercise and weight counseling, and more. These measures could help reduce symptoms, said Dr. Shawn Aaron, a lung specialist at The Ottawa Hospital and a professor at the University of Ottawa who led the research.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More
The E.P.A. says the new rule will prevent 4,500 premature deaths annually. Industry leaders are expected to challenge the regulation, saying it will harm the economy.The Environmental Protection Agency on Wednesday tightened limits on fine industrial particles, one of the most common and deadliest forms of air pollution, for the first time in a decade.Business groups immediately objected, saying the new regulation could raise costs and hurt manufacturing jobs across the country. Public health organizations said the pollution rules would save lives and strengthen the economy by reducing hospitalizations and lost workdays.Fine particulate matter, which can include soot, can come from factories, power plants and other industrial facilities. It can penetrate the lungs and bloodstream and has been linked to serious health effects like asthma and heart and lung disease. Long-term exposure has been associated with premature deaths.The new rule lowers the annual standard for fine particulate matter to nine micrograms per cubic meter of air, down from the current standard of 12 micrograms. Over the next two years, the E.P.A. will use air sampling to identify areas that do not meet the new standard. States would then have 18 months to develop compliance plans for those areas. By 2032, any that exceed the new standard could face penalties.“Soot pollution is one of the most dangerous forms of air pollution,” Michael S. Regan, the E.P.A. administrator, said in a call with reporters on Tuesday. “This is truly a game changer for the health and well-being of communities in our country.”Mr. Regan estimated that the rule would prevent 4,500 premature deaths every year and 290,000 lost workdays because of illness. The E.P.A. maintained that the rule also would deliver as much as $46 billion in net health benefits in the first year that the standards would be fully implemented.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More
