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Atmospheric new particle formation from the CERN CLOUD experiment
Aerosol particles in the atmosphere profoundly influence public health and climate. Ultrafine particles enter the body through the lungs and can translocate to essentially all organs, and they represent a major yet poorly understood health risk.
Human activities have considerably increased aerosols and cloudiness since pre-industrial times, but they remain persistently uncertain and underrepresented in global climate models. We present a synthesis of the current understanding of atmospheric new particle formation derived from laboratory measurements at the CERN CLOUD chamber.