This is an atmospheric industrial shot. You may, or may not be
allowed to take your camera into industrial areas. ALWAYS ASK -
IT CAN BE VERY DANGEROUS !

Here, the camera was an old folding 120 medium format that could
be easily carried - I did have permission - and the shot was
taken showing the high pollution levels. As an aside, things in
this industry are now improved beyond all recognition and the
plant shown is long gone.

In such circumstances, grit, heat and dust can permanently damage
gear, hence the old camera that was still fully capable.