A mixture of fog and smoke, often referred to as smog, which can reduce visibility and affect health.

धुंध और धुएं का मिश्रण

English Usage: The city's skyline was obscured by the fog mixed with smoke, making it hard to see the buildings.

Hindi Usage: शहर की इमारतें धुंध-धुएं में छिप गई थीं, जिससे उन्हें देखना मुश्किल हो गया था।