Water pollution Portrait of a natural river flow that looks clean and far from waste Stock Free Yellow moss pond scum on waste water containment. The photo is suitable to use for nature background, wild life poster and botanical content media. Stock Free Yellow moss pond scum on waste water containment. The photo is suitable to use for nature background, wild life poster and botanical content media. Stock Free Yellow moss pond scum on waste water containment. The photo is suitable to use for nature background, wild life poster and botanical content media. Stock Free
