灰霾 Traditional form: 灰霾 Pinyin (reading): huīmái Definitions: dust haze dust storm Characters: 灰 - ashes; dust; lime, mortar 霾 - fog, mist; smoke, smog; dust storm Traditional characters: 灰 - ashes; dust; lime, mortar 霾 - fog, mist; smoke, smog; dust storm