the airflow) information was not available for the full data set, so the information is presented as a qualitative demonstration of the use of automobile filters for radionuclide monitoring.[]{data-label="fig:auto"}](autoallfallout-loglin){width="\linewidth"}

Rainwater Measurements
======================

Also collected in the aftermath of the Fukushima announcement was rainwater in Oroville, CA. Collection periods were recorded and samples were transferred from an outdoor collector to a Marinelli-style counting beaker for counting. No other preparation was performed on the samples prior to being counted on an ORTEC HPGe spectrometer (2.1 kg p-type HPGe crystal, 85% relative efficiency) at the underground location of the Low Background Facility with over 500 m.w.e. overburden. When applicable, results were decay corrected for the shorter lived isotopes that for decay prior to counting in order to report the activity at the time of collection. The rainfall measurements collected in the immediate days following the Fukushima nuclear accident are shown in [**Figure \[fig:raincompare\]**]{} and the full period of monitoring in [**Figure \[fig:ororainloglog\]**]{}. The activities found in the rainwater in Oroville, CA were remarkably close in activity to the measurements made by Norman, et. al. [@Norman2011] on rainwater collected in the San Francisco Bay Area, which is around 120 miles away– which is quite 