Mephitis and Smog

Mephitis noun - A distinctive odor that is offensively unpleasant.

Smog and mephitis are semantically related. in effluvium topic. In some cases you can use "Smog" instead a noun "Mephitis".

Smog noun - An atmospheric condition in which suspended particles in the air rob it of its transparency.

Mephitis and smog are semantically related. Sometimes you can use "Mephitis" instead a noun "Smog".