Snowmelt Measurement
Snowmelt Measurement
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The sample in the table below was taken from a waterfall feeding Hetch-Hetchy Reservoir, which provides water to San Francisco. The water is snowmelt from the Sierra Nevada mountains.
The snowmelt measurement was done with the same setup as the Rainwater Collection Experiment.
| Collection Date | Sample Volume | I131 | I132 | Cs134 | Cs137 | Te132 | Data |
|---|---|---|---|---|---|---|---|
| Liters | Bq/L (liters**) | Bq/L (liters**) | Bq/L (liters**) | Bq/L (liters**) | Bq/L (liters**) | ||
| 06/19/2011 17:00 | 1.24 |
less than MDA [MDA=0.07] |
less than MDA [MDA=0.39] |
less than MDA [MDA=0.08] |
less than MDA [MDA=0.10] |
less than MDA [MDA=0.18] |
data |
** The number in parentheses is the number of liters of tap water that one would need to consume to equal the radiation exposure of a single round trip flight from San Francisco to Washington D.C. (0.05 mSv). To see how we calculate these numbers, please visit our explanation of the equivalent dose calculation.
