The PACIFIC Hop-On project will advance understanding of aviation’s non-CO₂ climate impacts by integrating the Cyprus Institute’s Earth System Modelling expertise into the ongoing Horizon Europe PACIF...

AbstractAims. Ultrafine particles (UFPs) smaller than 100 nm are ubiquitous in polluted air. Although they carry little mass, UFPs have a large exposure su

Particle nucleation from trace atmospheric vapours is important for climate since it gives rise to more than half of global cloud condensation nuclei. Sulfuric acid (H2SO4) has long been recognised to...

Abstract. Volatile organic compounds (VOCs) are key precursors of tropospheric ozone and secondary organic aerosol formation, yet multi-year observations in the Eastern Mediterranean and Middle East (...

Abstract. The volume-to-extinction ratio (ζ) is an important aerosol property, allowing to relate gravimetric and optical quantifications, widely used in remote sensing and in climate models. The ζ ra...

Scientific Data - Global high-resolution ultrafine particle number concentrations through data fusion with machine learning

Our study investigates how ammonia (NH₃) emissions from human activities—mainly agriculture—affect aerosol formation high in the atmosphere, in the upper troposphere and lower stratosphere. Using the ...

Anthropogenic ammonia (NH3) emissions have significantly increased in recent decades due to enhanced agricultural activities, contributing to globa...

Experiments under upper-tropospheric conditions map the chemical formation of isoprene oxygenated organic molecules (important molecules for new particle formation) and reveal that relative radical ratios control their composition

Isoprene oxygenated organic molecules (IP-OOM) can nucleate new particles in the upper troposphere. These particles may grow into cloud condensation nuclei and influence the clouds and climate. Howeve...

Environmental change is altering how plants emit sesquiterpenes, a group of highly reactive biogenic volatile organic compounds (BVOCs) that influence both ecosystem function and atmospheric chemistr...

Abstract. We present top-down global gridded emissions of NOx for the year 2022. This dataset is constructed from retrievals of tropospheric vertical column densities (VCDs) of NO2 by the TROPOspheric...