The Environmental Protection Agency and the Department of Energy are jointly undertaking a project to evaluate the causes and effects of precipitation caused by coal smoke in the atmosphere. OSCAR (oxidation and scavenging characteristics of April rain' Chem. Eng. News, April 20, 1981, p. 26) is the acronym for a program to track acid rain from its origin to downwind locations. Several aircraft and several tens of precipitation samplers are located throughout North America to collect data.
The study is concentrated in an area near Ft. Wayne, Ind., an area in a strategic position to receive emissions dissolved and otherwise incorporated in rain thought to originate from the coal-burning plants in the Ohio river valley region.