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Time variation of radon daughters concentration in snowfall
Radioisotopes
|May 1, 1984
Summary
Snowfall continuously removes radon daughters from the atmosphere. The amount of radon daughters deposited by snowfall is directly proportional to precipitation, especially during light snowfall events.
Area of Science:
- Environmental Science
- Atmospheric Chemistry
- Radiological Science
Background:
- Radon daughters are naturally occurring radioactive isotopes present in the atmosphere.
- Snowfall can potentially act as a mechanism for removing atmospheric pollutants, including radioactive particles.
Purpose of the Study:
- To investigate the continuous time variation of radon daughters concentration in snowfall.
- To determine the relationship between radon daughters concentration in snowfall, precipitation amount, and atmospheric radon daughters concentration.
- To assess the washout effect of snowfall on atmospheric radon daughters.
Main Methods:
- Continuous monitoring of radon daughters concentration in snowfall.
- Correlation analysis between snowfall radon daughters concentration and precipitation.
- Analysis of atmospheric radon daughters concentration during snowfall events.
Main Results:
- Radon daughters concentration in snowfall exhibits a wide range, particularly with small precipitation amounts.
- The quantity of radon daughters transported to the ground by snowfall is directly proportional to the precipitation.
- Snowfall demonstrates a significant washout effect on atmospheric radon daughters.
Conclusions:
- Snowfall is an effective scavenger of atmospheric radon daughters.
- Precipitation intensity is a key factor influencing radon daughters deposition via snowfall.
- Understanding these dynamics is crucial for atmospheric radioactivity studies and environmental monitoring.