Airscape is a noun that refers to the area of surrounding air in a particular place. Although there aren't many synonyms for this word, some could be airspace, atmosphere, or environment. Each word has a slightly different connotation though. Airspace has a more technical meaning, often used in the context of aviation or air traffic control. Atmosphere connotes the climate or mood of a place, and could be used to describe the air in a particular room or situation. Environment is broader and could encompass the natural or man-made surroundings of a particular place. While these words may not all be interchangeable with airscape, they can help to paint a more complete picture of the air around us.