Each year, exposure to airborne particulate matter known as PM2.5 (particles with a diameter smaller than 2.5 micrometers) leads to millions of premature deaths worldwide.
in Atlanta, Georgia, they simultaneously measured the production of reactive oxygen species in alveolar cells resulting from pollution exposure.and damage to our cells, potentially leading to various health problems, including cardiopulmonary diseases.-induced oxidative stress, the researchers employed cellular assays, which allowed them to measure both chemically and biologically generated ROS.
"For example, biomass burning is expected to become a more important source of OOA with the increasing trend of wildfires," added Liu, a former postdoctoral researcher in Ng's lab at Georgia Tech who is now an associate professor at Xi'an Jiaotong University in China. A major chemical characteristic of OOA formed from biomass burning is the high fraction of oxygenated aromatic compounds."Hence, this work highlights that organic aerosols can become more toxic in the future," he said.According to the researchers, their findings underscore the need for continued collaboration among the fields of atmospheric chemistry, toxicology, epidemiology, and biotechnology to tackle the global air pollution crisis.
"OOA are a surrogate of secondary organic aerosols. Secondary organic aerosols are ubiquitous and abundant in the atmosphere, we need to understand their sources and chemical processing when formulating effective strategies to mitigate PM
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