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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 on 1 January 2000, is a laboratory of the Energy and Environment Research Division (ENE) at the Paul Scherrer Institute (PSI).

Mission

The mission of the LAC is to create understanding of the processes determining the chemistry and physics of gases and aerosol particles in the atmosphere in order to determine the impact of the energy system on atmospheric composition and the impact of atmospheric composition on air quality, human health, weather and climate change.

LAC Mission
LAC's mission

The Laboratory of Atmospheric Chemistry (LAC) investigates the impact anthropogenic activities have on fundamental processes in the atmosphere, and with that on air quality, human health, and the climate. A strong focus lies on the links between energy generation and use and its impact on the environment, which have become ever more important since the adaptation of the net-zero strategy in Switzerland. The LAC consists of six interacting groups that operate cutting-edge facilities and instrumentation in the lab and in the field, and run computer models. We are responsible for the long-term observations of atmospheric aerosol at the research station Jungfraujoch and at the Payerne observatory, and run an atmospheric chamber facility at PSI, all embedded in the Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS). We are highly collaborative within PSI, nationally, and internationally. 

News & Highlights

3 November 2023
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New Study Reveals Surprising Climate Benefits of Agriculture

The big challenges our planet faces—like climate change, food supply, water, and biodiversity—are all interlinked. While agriculture continues to be the primary source of food for human kind, it imposes climate challenges especially through emissions like greenhouse gases and ammonia. To solve this, we need a new approach that reduces the harmful effects of farming on the climate. 

Read more
8 September 2023
Adobestock 624468194

How trees influence cloud formation

Media Releases Energy and Climate Environment

Researchers at PSI have taken a closer look at a previously disregarded factor in the formation of clouds. This could improve the accuracy of climate forecasting.

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13 March 2023
Smog in India

Extreme nighttime pollution in New Delhi air explained

Media Releases Energy and Climate Environment

PSI researchers find the cause of high nighttime air pollution in New Delhi

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9 December 2022
Andrea Baccarini

Andrea Baccarini – Winner of the Prix de Quervain

Andrea Baccarini, former PhD at the Laboratory of Atmospheric Chemistry at PSI won the prestigious Prix de Quervain.

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Contact

Laboratory of Atmospheric Chemistry
Forschungsstrasse 111
5232 Villigen PSI
Switzerland
 


Claudia Mohr


Laboratory Head LAC
Claudia Mohr
Telephone: +41 56 310 54 77
E-mail: claudia.mohr@psi.ch

 


Indlekofer Claudia


Assistant
Claudia Indlekofer
Telephone: +41 56 310 25 22
E-mail: claudia.indlekofer@psi.ch

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