The PRC's first nuclear test was carried out at Lop Nur, Xinjiang, on 16 October 1964. Japanese physicist Jun Takada, known for prominently opposing the tests as "the Devil's conduct" speculated that between 100,000 and 200,000 people may have been killed due to the consequential radiation. According to the Scientific American article, Jun Takada was not allowed into China. Moreover, he 'studied radiation effects from tests conducted by the U.S., the former Soviet Union and France'. However the Lop Nur area has not been permanently inhabited since the 1920s. This is because it is located between the Taklamakan and Kumtag deserts in Ruoqiang County, which has an area of almost with a population density of only 0.16/km2. Furthermore, Chinese media rejected Takada's conclusion.