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Atmospheric chemistry

Particulars of particle formation

Atmospheric aerosols strongly influence Earth's climate, but how they form has remained a mystery. According to cloud chamber experiments, a mixture of vapours, as well as ions formed by galactic cosmic rays, contribute to the particle formation recipe.

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Figure 1: Schematic showing the influence of ammonia, organics and ions on aerosol nucleation.

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Correspondence to Jeffrey Pierce.

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Pierce, J. Particulars of particle formation. Nature Geosci 4, 665–666 (2011). https://doi.org/10.1038/ngeo1267

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