Scientists discover a mysterious silicone pollutant that may be everywhere
Latest Science News -- ScienceDaily·May 13, 2026
Researchers have uncovered unexpectedly high levels of silicone-based pollutants called methylsiloxanes floating through the atmosphere across cities, rural regions, and even forests. Much of the pollution appears to come from vehicle emissions, likely linked to engine oil additives that survive combustion and escape into the air. Scientists say humans may inhale more of these compounds daily than other notorious pollutants like PFAS or microplastics.
