The proportion of harmful substances in particulate matter is much higher than assumed
www.unibas.ch
People breathing contaminated air over the course of years are at greater risk of developing numerous diseases. This is thought to be due to highly reactive components in particulate matter, which affect biological processes in the body. However, researchers from the University of Basel have now shown that precisely these components disappear within hours and that previous measurements therefore completely underestimate the quantities in which they are present.
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The original was posted on /r/science by /u/Potential_Being_7226 on 2025-04-01 13:28:15+00:00.

Original Title: The proportion of harmful substances in particulate matter is much higher than assumed | Study finds that 60 - 99% of reactive oxygen species disappear in minutes to hours, indicating prior measurements completely underestimate exposure risks.