  We study the effects of spatial dispersion in disordered noncentrosymmetric
metals. These include the kinetic magnetoelectric effect, natural optical
activity of metals, as well as the so-called dynamic chiral magnetic effect as
a particular case of the latter. These effects are determined by the linear in
the wave vector of an electromagnetic perturbation contribution to the
conductivity tensor of a material, and stem from the magnetic moments of
quasiparticles near the Fermi surface. We identify new disorder-induced
contributions to these magnetic moments that come from the skew scattering and
side jump processes, familiar from the theory of anomalous Hall effect. We show
that at low frequencies the spatial dispersion of the conductivity tensor comes
mainly either from the skew scattering or intrinsic contribution, and there is
always a region of frequencies in which the intrinsic mechanism dominates. Our
results imply that in clean three-dimensional metals, current-induced
magnetization is in general determined by impurity skew scattering, rather than
intrinsic contributions. Intrinsic effects are expected to dominate in cubic
enantiomorphic crystals with point groups $T$ and $O$, and in polycrystalline
samples, regardless of their mobility.
