=O = Vegetation, terrestrial biota (300 samples to be processed): Initial processing (LLL) - 85 samples completed, Seawater (50 samples collected): Chemical separation (LLL) - total of 50 samples; adding carriers and tracers, sequential separation of various elements; in process, anticipate 6 weeks of additional effort. Plankton (17 samples collected): 17 samples in process (LLL) - dry, weigh, package. Core samples (40 samples collected): Total of 4O collected. Still frozen and stored at LILI. Will be sectioned and processed in same manner as sediment samples. Air filters (61 samples collected): High-volume samples gamma counted (LLL) - 11 samples. Wet chemical analysis for e39py (MCL) - 7 (in process). Gamma counting, precision Ge(Li) detector spectroscopy: Samples counted and data in camputer bank (LLL) - 9 Feb. '73 23 Feb. '73 Soils 278 371 Sediments 218 218 Fish 14h 186 15 16 7 ll 662 8ce Vegetation Air filters TOTAL