Our manufacturing facilities release a variety of air emissions. Our largest emissions source is related to the release of volatile organic compounds (VOCs), which are generated by the evaporation of organic solvents in can coatings and drying those coatings. Another source for VOCs at Ball is the end compound, a sealing material used in our beverage end and food and household packaging plants. In the presence of sunlight and nitrogen oxides, VOCs form ozone, also called "summer smog."