Problems of conservation : air

Series: Environmental Studies Series

Duration: 0:15:28

Genre: Educational | Social problem

Year Published: 1968

Creator: Encyclopaedia Britannica Educational Corporation: Distributor | Indiana University Audio-Visual Center: Distributor

Format: 16mm

Color: Color

Sound: sound

Description: Surveys the contamination of air through a study of various pollutants, indicating that air pollution began approximately 200 years ago with the advent of the Industrial Revolution. Defines smog as the combination of gaseous wastes with moisture in the air and points out that sun shining on smog can produce harmful chemical changes. Shows the danger of temperature inversions and recommends the electrical and mechanical removal of pollutants at the source., Problems of Conservation - Air From the series Environmental Studies Series Distributed by ENCYCLOPEDIA BRITANNICA EDUCATIONAL CORP 425 N MICHIGAN AVE CHICAGO, IL 60611 Produced by ENCYCLOPEDIA BRITANNICA EDUCATIONAL CORP 425 N MICHIGAN AVE CHICAGO, IL 60611 Year published 1968 Grade Level: J A Distributed on media: 1 videocassette (15 min.), 1/2 in.; 1 videocassette (u-matic) (15 min.), 3/4 in.; 1 film reel (15 min.), 16 mm. Color?Color Length: 15 MIN Description: Studies adverse effects of air pollution. Discusses technological and legislative controls. Specifies the percentages of various gases that make up the troposphere. Topics: Social-Culture-And-Social-Processes; Social-Group-And-Interpersonal-Processes; Biology,-Ecology-Air-Pollution; Biology,-Ecology-Environment; Chemistry-General; Social-Problems

Complete Record: , Surveys the contamination of air through a study of various pollutants, indicating that air pollution began approximately 200 years ago with the advent of the Industrial Revolution. Defines smog as the combination of gaseous wastes with moisture in the air and points out that sun shining on smog can produce harmful chemical changes. Shows the danger of temperature inversions and recommends the electrical and mechanical removal of pollutants at the source., Problems of Conservation - Air From the series Environmental Studies Series Distributed by ENCYCLOPEDIA BRITANNICA EDUCATIONAL CORP 425 N MICHIGAN AVE CHICAGO, IL 60611 Produced by ENCYCLOPEDIA BRITANNICA EDUCATIONAL CORP 425 N MICHIGAN AVE CHICAGO, IL 60611 Year published 1968 Grade Level: J A Distributed on media: 1 videocassette (15 min.), 1/2 in.; 1 videocassette (u-matic) (15 min.), 3/4 in.; 1 film reel (15 min.), 16 mm. Color?Color Length: 15 MIN Description: Studies adverse effects of air pollution. Discusses technological and legislative controls. Specifies the percentages of various gases that make up the troposphere. Topics: Social-Culture-And-Social-Processes; Social-Group-And-Interpersonal-Processes; Biology,-Ecology-Air-Pollution; Biology,-Ecology-Environment; Chemistry-General; Social-ProblemsNOTE: Two (or more) records have been merged together to create this data.