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SUMMARY:Organic aerosols in the atmosphere: composition and reactivity. - 
 Dr Markus Kalberer\, Univserity of Cambridge
DTSTART:20111020T151500Z
DTEND:20111020T163000Z
UID:TALK33790@talks.cam.ac.uk
CONTACT:Dr Alex Archibald
DESCRIPTION:Organic Aerosols play an important but poorly understood role 
 in the climate\nsystem. Through direct and indirect effects they are stron
 gly influencing the\nradiative budget of the atmosphere. Aerosol particles
  are also recognized to be\none of the main air pollution components causi
 ng a variety of negative health\neffects. The chemical composition of part
 icles is of key importance for climate\nand health related aspects but is 
 often not well characterized.\n\nThe formation and composition of mostly o
 rganic atmospheric particles will be\ndiscussed. Organic aerosol particles
 \, formed through atmospheric oxidation\nreactions and/or condensation are
  highly complex and conventional analytical\ntechniques often fail to char
 acterize the majority of the organic aerosol mass.\nNew analytical techniq
 ues such as ultra-high resolution mass spectrometry are\npromising tools t
 o gain unprecedented and detailed insights into particle sources\,\nformat
 ion processes and composition.\nThe effect of atmospherically relevant par
 ticles onto lung cell cultures will be\ndiscussed together with new techni
 ques to quantify potential health relevant\nparticle components.
LOCATION:Pfizer  Lecture Theatre\,  Department of Chemistry
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