Health
Climate change can exacerbate pollen seasons: research
March 16, 2022-Climate change has already lengthened the allergic season, pollen The count will be higher, but this will continue to worsen over the next few years. New research Published in the journal Nature Communications..
Researchers have found that the pollen season begins 10-40 days ago and can last 5-20 days longer, and if carbon emissions are not suppressed, pollen levels can triple. ..
The warm climate allows plants to begin to bloom early and continue to bloom later in the season. On the other hand, carbon dioxide in the air is generated by the combustion of fuels such as coal, gasoline and natural fuels. gas Helping plants produce more pollen, Dr. Allison Steiner, one of the research co-authors and a climate scientist at the University of Michigan, Told the Associated Press..
The research team examined 15 plant pollens in the United States and historical pollen data collected from 100 sites in North America. They used computer simulations to calculate how long the allergic season lasts and how pollen release changes as temperatures rise over the next 80 years.
They found that temperature and precipitation affect daily pollen release, based on region and pollen type. Due to seasonal changes and pollen production due to temperature, total annual pollen emissions can increase by 15% to 40%. In addition, an increase in atmospheric carbon dioxide could increase pollen production by 200% by 2100.
The allergic season has already worsened in recent decades, AP reported. According to allergists, the pollen season in the United States began around St. Patrick’s Day in mid-March and now often begins around Valentine’s Day in mid-February.
In the United States and Canada, the pollen season begins about 20 days ago and pollen loads are about 21% higher than in 1990. February 2021 study Published in Minutes of the National Academy of Sciences.. Researchers have found a strong link between global warming and longer pollen seasons.
In the latest study, the research team found that the season of allergies was the worst in the southeast. The beginning of the alder pollen season advances most dramatically and can cause problems in the Pacific Northwest. The pollen of the cypress tree, which is particularly strong in Texas, is found among the highest increases.
The most common sparks, ragweed and grass Pollen allergyAlso, researchers have discovered that they will have longer seasons and higher pollen counts.
About 30% of the world and 40% of American children have pollen allergies, which can lead to holidays, school absenteeism, and high medical costs. Yingxiao Zhang, one of the co-authors of the study and a climate scientist at the University of Michigan, told AP.
Allergies are especially severe for 25 million Americans asthma.. APs reported that longer and more severe allergic seasons could further exacerbate their condition.
Historically, trees predominate during the spring pollen season, followed by grass at the end of summer and ragweed in the fall. To NBC News.. However, with the new model, these seasons overlap with summer, which can be more problematic for people with allergies and asthma.
Dr. Patrick Kinney, a professor of environmental health at Boston University’s School of Public Health, told NBC News:
“Over time, people will probably feel sick, need more medicine, and more people may become allergic to pollen,” he said.
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Sources 2/ https://www.webmd.com/allergies/news/20220316/climate-change-worsen-pollen-season-study The mention sources can contact us to remove/changing this article |
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