Charge-enhanced uptake of SO2 at the water/air interface

Mass accommodation coefficients, α, for uptake of SO2 into pH 7 and 12 droplets have been measured as a function of droplet charge. The α values for uncharged pH 7 and 12 droplets were determined to be 0.084±0.010 and 0.109±0.01, respectively. When the droplets were charged to densities of −1.14×10−5 C m−2, the α values increased, to 0.149±0.01 and 0.161±0.01, respectively.