Gross radioactivity in surface waters of the United States, April 1968.
1968
UI
MeSH Term
Description
Entries
D011834
Radiation Monitoring
The observation, either continuously or at intervals, of the levels of radiation in a given area, generally for the purpose of assuring that they have not exceeded prescribed amounts or, in case of radiation already present in the area, assuring that the levels have returned to those meeting acceptable safety standards.
Monitoring, Radiation
D012494
Sampling Studies
Studies in which a number of subjects are selected from all subjects in a defined population. Conclusions based on sample results may be attributed only to the population sampled.
Probability Sample,Probability Samples,Sample, Probability,Samples, Probability,Sampling Study,Studies, Sampling,Study, Sampling
D014481
United States
A country in NORTH AMERICA between CANADA and MEXICO.
D014878
Water Pollution, Radioactive
Contamination of water with radioactive materials and/or substances.
Pollution, Radioactive Water,Radioactive Water Pollution
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