  We present the V band polarization of 81 Herbig Ae/Be (HAeBe) candidates from
the Pico dos Dias Survey (PDS). A good estimate of the foreground polarization
was possible for most stars. A large number of objects shows intrinsic
polarization, which indicates that their circumstellar envelopes have some kind
of non-spherical symmetry. In this work, however, we study these data focusing
on their relation with the interstellar medium. Our data seem to indicate a
correlation between the position angle of the HAeBe star polarization and that
of the corresponding field stars. This may be an evidence that the ambient
interstellar magnetic field can play a role in the development of asymmetries
in the envelope of young stars of intermediate mass. The spatial distribution
of the sample relative to neighboring star forming regions is also studied.
