Physical and Theoretical Chemistry

Atmospheric, Environmental, and Aquatic Chemistry

Additional sessions will consider gas-to-particle conversion, secondary organic aerosol formation, multiphase radical chemistry, and the optical and hygroscopic properties of atmospheric particulate matter. Presentations may address oxidation of volatile organic compounds, halogen activation in marine and polar environments, heterogeneous uptake on mineral dust and soot, and photochemical ageing of pollutants. Discussion will extend to redox speciation of metals in natural waters, complexation with natural organic matter, contaminant sorption to soils and sediments, and the mobility of emerging contaminants such as pharmaceuticals and microplastics. Analytical strategies including high-resolution mass spectrometry, isotope tracing, and passive sampling will be considered alongside box models and chemical transport modelling. Progress in environmental change. research will be welcomed, covering indoor air quality, wastewater treatment chemistry, climate-relevant aerosol–cloud interactions, and remediation strategies supported by mechanistic understanding.