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Town air may be polluted by very many particles and gases, the physical and chemical nature of which is complex. Their action on the human body depends not only on their concentration and nature but also on...
3: Pollution control and the philosophy behind related legislation. Practical methods of control include redesigning chimneys and modifications and alternatives to the internal combustion engine. For the...
The main theme is contamination of the air, but other forms of pollution, which cost Britain £400m. each year, are described. The success achieved in eliminating smoke in London is outlined. But the film...
For a long time the Baltic was used as a rubbish dump and a sewer for the wastes of industry and 200 million people. In 1974 the seven nations with Baltic coastlines made a national agreement to protect the...
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...
Demonstrates the nature of noise hazards and health risks and shows how an organisation should control noise hazards. Explains what individual employees can do to remain safe.
This interactive DVD covers topics such as Earth, Water, Life, Landforms and Extreme Weather. It enables students to study rock samples and to model, for example, the flow of water from rainstorm to ocean,...
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