TNPS environmental monitoring in 2004 (pre-operation)

Tianwan Nuclear Power Station (TNPS) carried out the pre-operation environmental monitoring around the nuclear power station in 2004, in order to check whether equipment, procedures, QC measures, the staff's technology level can meet all the needs of normal operating conditions, to accumulate and improve the pre-operation environmental background data, to find the latent problems by practice and feedback, and to give a better scheme and improvement measures. This article introduces environmental monitoring program, quality assurance, main monitoring results and comparisons of these results and background investigation results during 2000.4-2002.3. The monitoring results show that the environmental background remains basically at the same level of background investigation except the activity concentration of 137Cs in the seawater samples. (authors)