Air pollution produced when acid chemicals are incorporated into rain, snow, fog or mist. The "acid" comes from sulfur oxides and nitrogen oxides, products of burning coal and other fuels. When sulfur dioxide and nitrogen oxides are released from power plants and other sources, winds blow them far from their source. If the acid chemicals in the air are blown into areas where the weather is wet, the acids can fall to Earth in the rain, snow, fog, or mist. In areas where the weather is dry, the acid chemicals may become incorporated into dusts or smokes. Acid rain can damage the environment, human health, and property.