Poor city in narrow rocky valley in autumn. Peaceful houses on the edge of the forest. Town have mosque and minaret. Surrounded by small hills. House road car people walking street. Air pollution occurs when harmful or excessive quantities of substances are introduced into Earth’s atmosphere. May damage the natural or built environment. Both human activity and nature processes can generate air pollutions. Cityscape building tree aerial fly drone flying over head roofs near smoke comes out of the chimneys chimney bridge bridges canal UHD 3840X2160.