Abstract
Hydrocarbon emissions from loading gasoline into compartments on ships are lower than the amount normally estimated. Three ships were monitored for hydrocarbon emissions during gasoline loading. Sampling was carried out in February, April, and November to provide representative data for year-round conditions. Two sources of hydrocarbon emissions are generated from cargo compartments; residual hydrocarbon vapor attributed to the previous cargo and vapor generated during the loading. The effect of prior compartment cleaning is significant.