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Laboratory of Atmospheric Chemistry (LAC)

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LAC - Laboratory of Atmospheric Chemistry

The Laboratory of Atmospheric Chemistry (LAC), established 1 January 2000, is a laboratory of the Energy and Environment Research Division (ENE) at the Paul Scherrer Institute.
Our laboratory comprises three interacting groups that operate a large variety of facilities and instruments in the lab and in the field.

News

10. Dezember 2019
Ribbon for highly-cited researchers

2019 Highly Cited Researchers

Again in 2019: Three LAC researchers were highly cited.

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12. November 2019
Swiss Aerosol Award 2019 ceremony

Giulia Stefenelli wins Swiss Aerosol Award 2019

Award conferred by SwissLung.org during the award ceremony in Berne, Switzerland

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13. Dezember 2018
Highly-cited_badge

2018 Highly Cited Researchers

Three LAC researchers were highly cited in 2018.

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Scientific Highlights

18. Mai 2020
Artwork illustrating inhomogeneities in a megacity

Newly discovered rapid particle growth rates may be the answer to the mystery of aerosol formation in urban smog

Aerosols, suspended particles or droplets, play a key role in Earth’s atmosphere’s energy balance. They can also result in smog formation in cities, which leads to low visibility and serious health risks for the population. A recent study published in Nature outlines a newly discovered mechanism that may play a key role in the continued survival of particles in wintertime smog.

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13. März 2020
Teaser: Erstmals chemische Reaktionen direkt im Feinstaub nachgewiesen

First-time direct proof of chemical reactions in particulates

Media Releases Enviroment Energy and Environment

Researchers at the Paul Scherrer Institute PSI have developed a new method to analyse particulate matter more precisely than ever before. With its help, they disproved an established doctrine: that molecules in aerosols undergo no further chemical transformations because they are enclosed in other particulate matter.

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13. Juli 2017

Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars

In contrast to nitrogen oxides, modern gasoline cars emit much more cancerogenic primary soot (black carbon + primary organic aerosol) and lead to more toxic secondary organic aerosol than modern diesel vehicles.

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27. Oktober 2016

The substances that brighten up the clouds

Media Releases Energy and Environment Enviroment

Clouds consist of tiny droplets. These droplets form when water condenses around so-called aerosols – small particles in the atmosphere. To understand how in turn aerosols come into existence scientists have now created a comprehensive computer model simulation based on profound experimental data. This simulation revealed that in addition to sulphuric acid, two other substances are crucially involved in the formation of aerosols: organic compounds and ammonia. These results have now been published in the renowned journal Science.

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Contact

Laboratory of Atmospheric Chemistry
Secretariate
Forschungsstrasse 111
5232 Villigen PSI
Switzerland

Claudia Indlekofer

Telephone:
+41 56 310 2522
E-mail:
claudia.indlekofer@psi.ch

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