  Five seaweed samples from Naturespirit Herbs LLC were counted using
low-background high-resolution gamma-ray detectors to search for evidence of
contamination from the Fukushima reactor accident. No evidence of Cs-134 was
observed in any of the samples. Very low levels of Cs-137 were observed and are
attributed to fallout from atmospheric nuclear weapons testing. However, these
levels of Cs-137 are small compared to the levels of the naturally occurring
K-40 observed from these seaweed samples.
