POLLUTION 



AIR POLLUTION FILMS 



Color Sound U. S. Public Health Service 



5 minutes each Free Loan 



SOURCES OF AIR POLLUTION 



One of three short films which should if possible be shown as a 

 group. With clarity and accuracy this particular production stresses 

 the chemical make-up of the wastes in the air and describes their 

 biological effects. Another asset is its successful effort to tie in 

 other problems of conservation, namely erosion and water pollution. 



EFFECTS OF AIR POLLUTION 



Title speaks for itself and graphically depicts effect of air pollu- 

 tion on humans as well as animal life. Also its impact on the com- 

 munity itself. Perhaps most important is the underlining of the fact 

 that the problem is not simply limited to occasional and intense 

 periods of smog but that danger lies also in that continued exposure 

 to a lesser degree of pollution over an extended period of time. 



CONTROL OF AIR POLLUTION 



A recapitulation of the content of the films mentioned above. 

 A trifle oversimplified and seems to skirt the obvious need for ex- 

 penditure of large sums to effect proper control. Nevertheless highly 

 useful if used as part of the series. 



AUDIENCE: Junior high; senior high; adult 



COAL AND WATER 



Color Sound Stuart Finley 



23 minutes Rental Sale 



Of particular interest to a general audience concerned with water 

 pollution, this story outlines the problem of river pollution caused 

 by coal mining. Specifically it illustrates the problem of "black 

 water" caused by coal affluents from refineries adjacent to rivers. 

 The intent of the industry to correct this condition through con- 

 stant research and practical application is described as being a 

 responsibility of both industry and local governments. Also intro- 

 ducing the as yet unsolved problem of "acid mine drainage", this 

 film may be generally described as a good example of how the 

 conscience of an industry can ameliorate pollution when long-range 

 planning is accepted and carried out. 



AUDIENCE: Senior high; adult 



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