An assessment was made of the economic impact of air pollution on electronic components. To begin the study, electronic components were divided into eleven different categories as defined by the Department of Commerce. The manner and amount of damage from air pollutants that might have been expected in each of these component categories was assessed by surveying the literature describing pollutant material damage mechanisms. The expected effects were compared with the actual experience of major manufacturing companies which appeared to account for most of the sales in each category. Where the literature survey indicated that gaseous sulfur compounds, notably sulfur dioxide, should be expected to account for most of the damage to electronic components, interviews with manufacturers revealed that particulate matter, actually was responsible for most of the electronic component and equipment malfunctions currently being experienced. The economic effects, which were represented by three cost categories, were applied to each component category and then summed to arrive at a total cost of about 15.5 million. (Author)