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Small Communities: River Planning.—Often while a country in its pioneering stage of development, n small communities along a single river system ^ about providing themselves with water for m cipal, industrial, irrigational, navigational, power uses, and disposed of the sewage a s distance downstream with little or no con for small communities below them, the resource of ing that might prevail in the stream, or its fu recreational value.
Its concentration on detailed understanding of the functioning of recognizable small communities of plants and animals in their environments—the ecosystems—was expected to provide a basis for optimum management ol our living resources. Other parts of the program would provide information about plant and animal small communities that would serve as base lines against which change could be measured and management efficiency evaluated.
In 1958, a total of 1,650 small communities in the United States had fluoridation programs, involving a combined population of 33.5 million. Another 7 million people in 1,903 small communities drank water that contained naturally 0.7 ppm. or m fluorides.
In 1958, a total of 1,650 small communities in the United States had fluoridation programs, involving a combined population of 33.5 million. |
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