Residents living in the East End of Pittsburgh, including Squirrel Hill, are advocating for cleaner air to breathe.The community includes but is not limited to neighborhoods east of Downtown: Oakland, Shadyside, Squirrel Hill, Greenfield, Bloomfield, Lawrenceville, Polish Hill, Morningside, Garfield, Stanton Heights, East Liberty, Lincoln-Larimer, Highland Park, Point Breeze, Bakery Square and Regent Square.