Previous studies of smoking risk beliefs have focused almost exclusively on
risks to the smoker. Using an original set of survey data from Spain, we e
xamine the public's perceived risks from exposures to environmental tobacco
smoke. The risk categories considered included lung cancer, heart disease,
life expectancy loss, and low birth weight for children of smoking mothers
. Risk beliefs were quite high, often dwarfing scientific estimates of the
risk. The results are consistent with overestimation of risks from highly p
ublicized, low probability events.