Physical Sciences and Mathematics Commons^™

Toward An Energy Policy, Dean E. Abrahamson

Journal of the Minnesota Academy of Science

The lack of a national policy on fuels and energy at a time of concern about the future supply and demand for energy and the environmental effects of creating energy is examined. Alternatives to present practices in generating and utilizing power are considered along with suggestions for measuring the "energy cost" of technological progress.

Pollution From Sewage Loading In River And Lakes Downstream From Bemidji, James Ludwig

Journal of the Minnesota Academy of Science

The deleterious effects and downstream distribution of pollutants from domestic sewage discharged at Bemidji, Minnesota, are examined with reference lo parameters for pollution as defined by the state's Pollution Control Agency (PCA). Periodic overloading of the resort city's sewage treatment plant also is considered, along with problems pertinent to a community upstream of popular vacation facilities on a lake and river system.

A Water Quality Survey, Dale E. Mcmichael

Journal of the Minnesota Academy of Science

Representative factors influencing water quality in the Albert Lea, Minnesota area were chosen as to assess water quality and changes in the watershed which has been described as an earlier valley of the Shell Rock River.

Parameters representative of chemical, bacterial, and thermal pollution were, respectively, total phosphorous, total and fecal coliform counts, and temperature. Statistical analysis has revealed that significant differences in some parameters measured do exist when various sampling stations of a given sampling date are compared. Statistical analysis also has indicated that correlations do exist between fluctuation patterns when all sampling stations of a given sampling date …

Nickel Mining And The Bwca: A Question Of Priorities, Walter E. Parham

Journal of the Minnesota Academy of Science

A conflict in potential land use of the Boundary Waters Canoe Area (BWCA) exists between those who wish to see the area open to mining and those who want it retained as a natural wilderness. A review of information available to the public which relates to possible nickel mining within the BWCA suggests that the BWCA itself in its natural state is a more valuable resource to the people of the United States than it is as a source for nickel. The high U.S. rate of consumption of nickel, our use of nickel in products in which it is non-essential, …