Use the sidebar or click below to navigate through our Publications. The Hotline is GASP’s quarterly newsletter, where we go in-depth on some of the topics we work on daily. Public Comments lets you see some of our official notices to local, state, and federal agencies concerning new laws or regulations. The Reports section provides links to timely, relevant research on air quality. The Green Library link takes you to more information about the Jacqueline Reid Gerjuoy Nature and Environment Resources collection at the Oakland Library in Pittsburgh, made possible through the gift of a GASP Board Member.