  We analyze the transport properties of the two-dimensional electrostatic
turbulence characterizing the edge of a Tokamak device from the study of test
particles motion (passive fluid tracers) following the EXB drift. We perform
statistical tests on the tracer population in order to assess both the
magnitude and the main features of transport. The role of other physical
properties, such as viscosity and inverse energy cascade in the spectrum, is
also considered. We outline that large scale eddies are responsible for greater
transport coefficients, while the presence of an X-point magnetic field reduces
the mean free path of the particles, however generating a larger outliers
population with respect to a Gaussian profile.
