The SF_6 tracer test study in the Fujian Huian nuclear power plant

Field tests on tracing of SF_6 were done in July 2002 in sites around Fujian Huian nuclear power plant and behaviors of tracer was described with complexity of terrain. Over-narrow or over-wide diffusion, over-hill and wrapping SF_6 plume were observed under different weather condition. The diffusion parameters obtained in the tests were compared with P-G curves, and experimental results in previous work.