Iodine-containing compounds can be found in large concentrations, especially in marine coastal environments but also in the Arctic and the Antarctic, due to large emissions from the ocean surface. High concentrations of iodine-containing compounds has been shown to correlate with high particle concentrations and has been shown to lead to new particle formation in the Arctic and marine environments. The contribution of iodinecontaining compounds to NPF has previously been studied with computational methods, but the exact contribution to NPF remains poorly understood. These studies have focused primarily on the formation of clusters with iodic acid (HIO 3 ) and iodous acid (HIO 2 ), either by themselves or in combination with other known nucleation precursors such as sulfuric acid, methanesulfonic acid, ammonia and dimethylamine. These studies show that iodic acid coupled with either ammonia or dimethylamine generally form very stable clusters, which could contribute significantly to particle formation.