A study led by scientists from Princeton University and the University of Colorado at Boulder shows that radioactive fallout from the first test of the atomic bomb in the United States in 1945 was higher than predicted.

This discovery highlights the need for society to review the consequences of radiation pollution.

On July 16, 1945, the first experiment using Trinity technology took place in New Mexico. The report highlights that the nuclear tests in early 1945 resulted in a significant release of radioactive material into the environment.

According to our estimates, there are areas in other states, including New Mexico and federally recognized tribal lands, where the level of radionuclide accumulation reaches a higher level than counties discussed in US law on compensation for radiation exposure.

The study also shows the distribution of these materials in the territories of 46 US states over a period of up to 10 days after the experiment. A particularly serious negative result was noted at the site of the experiment in New Mexico. High concentrations of radioactive fallout have also been found in Idaho, Arizona, Wyoming, Colorado, Nevada, and Utah.

The study found that radioactive fallout from the test spread as far as Lake Crawford in Mexico and Ontario, Canada. These results can be used to support those seeking federal compensation for the possible radiation effects of nuclear tests in the atmosphere.