Of all the nuclear tests conducted in the United States, Sedan ranked highest in overall activity of radionuclides in fallout. The test released 880,000 curies (33 PBq) of radioactive iodine-131, an agent of thyroid disease, into the atmosphere. Sedan ranked first in percentages of these particular radionuclides detected in fallout: 198Au, 199Au, 7Be, 99Mo, 147Nd, 203Pb, 181W, 185W and 188W. Sedan ranked second in these radionuclides in fallout: 57Co, 60Co and 54Mn. Sedan ranked third in the detected amount of 24Na in fallout. In countrywide deposition of radionuclides, Sedan was highest in the amount of 7Be, 54Mn, 106Ru and 242Cm, and second highest in the amount of deposited 127mTe. While Sedan ranks highest in percentages of Au-198 detected, it is not the most prolific generator or gold-heavy design that was tested by the US, due to the explosion being far more well contained, a larger quantity, referred to as a "a goldmine" of (Au) was used extensively in the W71 warhead, that was proof-tested in 1971 within a deep borehole in the Amchitka islands off Alaska.