scholarly journals Continuous nitrate monitoring in groundwater and potential contribution to surface-water nitrogen loads in Mason County, Illinois

Fact Sheet ◽  
2020 ◽  
Author(s):  
Lance R. Gruhn ◽  
Greg M. Nalley
Keyword(s):  
Surface Water ◽  
Potential Contribution ◽  
Nitrogen Loads ◽  
Mason County

Application of a Simple Cold Stub to the Direct Observation of Frozen Hydrated Sand

1973 ◽  
Vol 31 ◽  
pp. 212-213
Author(s):  
John M. Wehrung ◽  
Richard J. Harniman
Keyword(s):  
United States ◽  
Surface Water ◽  
Direct Observation ◽  
Controlled Study ◽  
Clay Particles ◽  
Organic Debris ◽  
Rock Formations ◽  
Water Tables ◽  
Permeable Rock ◽  
Natural Means

Water tables in aquifer regions of the southwest United States are dropping off at a rate which is greater than can be replaced by natural means. It is estimated that by 1985 wells will run dry in this region unless adequate artificial recharging can be accomplished. Recharging with surface water is limited by the plugging of permeable rock formations underground by clay particles and organic debris.A controlled study was initiated in which sand grains were used as the rock formation and water with known clay concentrations as the recharge media. The plugging mechanism was investigated by direct observation in the SEM of frozen hydrated sand samples from selected depths.

Measles epidemic control in Mason County, Kentucky, 1965 to 1966

JAMA ◽  
1967 ◽  
Vol 200 (10) ◽  
pp. 811-814
Author(s):  
P. R. Nader
Keyword(s):  
Epidemic Control ◽  
Mason County

The potential contribution of psychology to nuclear war issues.

1988 ◽  
Vol 43 (4) ◽  
pp. 318-321 ◽  
Author(s):  
Michael D. Intriligator ◽  
Dagobert L. Brito
Keyword(s):  
Potential Contribution ◽  
Nuclear War
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