  The new spectropolarimetric spectra of HD157087 obtained recently with
ESPaDOnS at CFHT are analysed to verify the nature of this object. The
fundamental stellar parameters $T_{\rm eff}$ = 8882 K, $\log{g}$=3.57 have been
obtained for HD157087 from the analysis of nine Balmer line profiles in two
available spectra. Comparison of the results of our abundance analysis with the
previously published data shows a variability of average abundance with time
for some chemical species, while the abundance of other elements remains almost
the same. The abundance analysis also reveals evidence of a significant
abundance increase towards the deeper atmospheric layers for C, S, Ca, Sc, V,
Cr, Mn, Co, Ni and Zr. Together with the found enhanced abundance of Ca and Sc
this fact contradicts the classification of HD157087 as a marginal Am star.
Analysis of the available measurements of radial velocity results in detection
of long periodic and short periodic variations. The long periodic variation
supports the idea that HD157087 is an astrometric binary system with a period
higher than 6 years. The presence of short periodic variation of $V_{\rm r}$,
as well as the detection of temporal variation of average abundance suggest
that HD157087 may be a triple system, where a short periodic binary rotates
around a third star. In this case, the short periodic binary may consist of
slowly rotating Am and A (or Ap with weak magnetic field) stars that have
similar effective temperature and surface gravity, but different abundance
peculiarities.
