air pollution

air atmosphere billow black blow business chimneys clouds color colour colourful contaminate contamination contrast damage danger dangerous dark day deadly destructive detrimental dirty discharge dreamy drift ecology eject emissions emit energy environment environmental expel factory foul fumes furnace generate generating global harmful hazardous health high hue illness impurity industrial industries industry labor light manufacturing menacing mill multiple nature negative noxious objects pipe pipes plant poison pollute pollution pour power prism production sky smog smoke smoky spew striking tall threatening towers toxic unhealthy unsafe vent warming weather wind