primary pathway by which radionuclides can move off the INEEL is through
the air and for this reason the air pathway is the primary focus of
monitoring on and around the INEEL. Samples for particulates and
iodine-131 (131I) gas in air were collected weekly at 16
locations using low-volume air samplers for the duration of the quarter.
Moisture in the atmosphere was sampled at four locations around the
INEEL and analyzed for tritium. Concentrations of airborne particulates
less than 10 micrometers in diameter (PM10) were measured for
comparison with EPA standards at three locations. Air sampling
activities and results for the second quarter, 2002 are discussed below.
A summary of approximate minimum detectable concentrations (MDCs) for
radiological analyses and DOE Derived Concentration Guide (DCG) (DOE
1993) values is provided in