DescriptionAEC-70-8891 OAK RIDGE, TENNESSEE... ENVIRONMENTAL POLLUTION ABATEMENT... In the interest in pollution abatement, monitoring at the Oak Ridge Gaseous Diffusion Plant includes air sampling. Wind direction and velocity are recorded, and continuous sampling with filter paper is done to determine particulate contaminants in air. Areas sampled, include plant stacks, work areas, plant perimeter and environs at several miles distant from the industrial plant. Credit: Union Carbide Corporation, Nuclear Division