Fig. 1From: Water–air transfer rates of microplastic particles through bubble bursting as a function of particle sizeSchematic representation of the experimental setup including two glass flasks with filtered gas supply and a stainless-steel frit to produce bubbles (white) in water with MP particles (black), and droplets (blue) in the headspace. Sample air is transferred through a diffusion dryer to an optical particle counter (OPC). The valve is switching between the two flasks every 15 minBack to article page