In a moral fog created by oneself. ... New American Dream Dictionary

Dreams of smog signify overwhelm, negativity, mental clutter and/or a smokescreen to mask what is really going on in your life. This dream may be giving you the message that you are in need of an emotional rainstorm, a good cry to cleanse the pollution of your mind and heart.... Strangest Dream Explanations

To see smog (pollution) in your dream, indicates your negative emotions. You may be feeling upset and fearful of a situation or relationship. Alternatively, it suggests that you have not clearly understood a situation well enough to make an informed decision.... My Dream Interpretation