A film on water pollution, using the Ottawa River as an example of what happens when a river is used as a dumping place for municipal and industrial waste. Colour animation illustrates exactly what happens to river water as it becomes polluted. Engineers, health authorities and civic officials voice concern over this urgent problem.
A film on water pollution, using the Ottawa River as an example of what happens when a river is used as a dumping place for municipal and industrial waste. Colour animation illustrates exactly what happens to river water as it becomes polluted. Engineers, health authorities and civic officials voice concern over this urgent problem.