GAC Lunch seminar

Research profile seminar

Welcome to the ffifth GAC lunch seminar for 2022, this time with a talk from Cheng Wu, Postdoctor at the Department of Chemistry & Molecular Biology

TALK

The impacts of mixing anthropogenic and natural emissions on air quality and climate change

Welcome to the fifth GAC lunch seminar for 2022, this time with a talk from Cheng Wu, Postdoctoral Researcher at the Department of Chemistry & Molecular Biology.

Secondary organic aerosol (SOA), formed from the oxidation of volatile organic compounds (VOCs) by ozone (O3), hydroxyl radicals (OH), or nitrate radicals (NO3), has important impacts on climate and human health. While O3 and OH-initiated oxidation dominates during the daytime, NO3, generated at night by the reaction of NO2 with O3, is the major nocturnal oxidant. The reactions of NO3 with biogenic VOCs, in particular, couple anthropogenic NOx emissions with natural VOC emissions, and therefore are crucial to our understanding of the impacts of anthropogenic pollution on air quality and climate change. In this talk, I will present my recent chamber studies as well as field observations of SOA from NO3-initiated oxidation of biogenic VOCs with a focus on their molecular composition and volatility.

Agenda
11.45 Lunch and mingle
12.00-12.05 Welcome and short about GAC
12.05-12.35 Talk from Cheng Wu
12.35-13.00 Q&A


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About Gothenburg Air and Climate Network (GAC)
The main objectives of GAC are to promote, coordinate and strengthen the existing atmospheric and climate research in western Sweden and to contribute to solving problems related to air quality, climate change and other environmental issues.