Synonym Study

• Smog is applied to a low-lying, perceptible layer of polluted air or to a mixture of fog and smoke sometimes appearing in industrial centers: the first three terms are also used figuratively lost in the mists of the past, a troublesome haze of confusion, in a fog of doubt
• Fog suggests a greater density of moisture particles than mist , sometimes suggesting a thickness impenetrable by the vision
• Haze suggests a thin dispersion of smoke, dust, moisture, etc. that makes objects indistinct
• Mist applies to a visible atmospheric vapor of rather fine density that blurs the vision