The residents around the RIPF assume that 131I detected in environmental samples is produced from RIPF. To ensure the safety of the residents, the radioactive concentration of 131I near the RIPF was investigated by monitoring environmental samples along the Gap River. The selected geographical places are near the nuclear installation, another possible location for 131I detection, and downstream of the Gap River. | Radioactive iodine analysis in environmental samples around nuclear facilities and sewage treatment plants
