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The contribution of organics to atmospheric nanoparticle growth
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2012 (English)In: Nature Geoscience, ISSN 1752-0894, E-ISSN 1752-0908, Vol. 5, no 7, 453-458 p.Article in journal (Refereed) Published
Abstract [en]

Aerosols have a strong, yet poorly quantified, effect on climate. The growth of the smallest atmospheric particles from diameters in the nanometre range to sizes at which they may act as seeds for cloud droplets is a key step linking aerosols to clouds and climate. In many environments, atmospheric nanoparticles grow by taking up organic compounds that are derived from biogenic hydrocarbon emissions. Several mechanisms may control this uptake. Condensation of low-volatility vapours and formation of organic salts probably dominate the very first steps of growth in particles close to 1 nm in diameter. As the particles grow further, formation of organic polymers and effects related to the phase of the particle probably become increasingly important. We suggest that dependence of particle growth mechanisms on particle size needs to be investigated more systematically.

Place, publisher, year, edition, pages
2012. Vol. 5, no 7, 453-458 p.
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Environmental Sciences
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URN: urn:nbn:se:su:diva-81285DOI: 10.1038/ngeo1499ISI: 000307098400012OAI: oai:DiVA.org:su-81285DiVA: diva2:563499
Note

AuthorCount:7;

Available from: 2012-10-30 Created: 2012-10-15 Last updated: 2017-12-07Bibliographically approved

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