smaze

Japanese: smaze

…Rain washes away the fine particles in the air, so the sky after the rain becomes clear. Incidentally, a mixture of smoke and haze is sometimes called smaze. [Gorou Wakahama]. …

From [Mist]

…(e) Smog: A mixture of smoke and fog. Haze is the phenomenon in which dry, fine particles are suspended in the air, making the air appear cloudy and white. A mixture of smoke and haze is called smaze.
[Damage from fog]
Fog is an obstacle to various types of transportation, and smog is also bad for health, so since ancient times, attempts have been made to artificially remove fog.

From [Air Pollution]

...It often occurs within an inversion layer. Smaze is a phenomenon that combines smoke and haze. It is a compound word created because the word smog is inappropriate to refer to the photochemical smog of Los Angeles.

*Some of the terminology explanations that mention "smaze" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…雨は大気中の微塵を洗い流してくれるので雨あがりの空はきれいになる。なお，煙smokeと煙霧hazeのまざったものをスメーズsmazeということがある。【若浜五郎】。…

【霧】より

…(e)スモッグsmog　煙smokeと霧fogの混ざったもの。乾いた微細な粒子が大気中に浮遊して大気が白く濁ってみえる現象をヘーズhaze(煙霧ともいう)といい，煙とヘーズの混ざったものをスメーズsmazeという。
［霧の害］
　霧は各種交通の障害となり，また，スモッグなどは健康にもよくないので，古くから霧を人工的に消そうとする試みが行われてきた。…