Research on the Doubtful Radioactive Contaminated Sites in the Urban Area of Chongqing

摘要

Sampling the doubtful contaminated soil and rocks by the way of grid layout along the Yangtze River and Jialing River, near some hospitals and factories in the urban area of Chongqing, and measuring the samples specific activity of radionuclide ~(220) Ra, ~(252)Th, and ~(40)K. Analyze the radioactive levels of doubtful contaminated sites by the measurement results, to make recommendations for monitoring environmental radioactive levels and propose remediation steps of contaminated soils.