School Flag Program : fact sheet

• Record Nr.: UNINA9910704605503321
• Pubbl/distr/stampa: Washington, D.C. : , : U.S. Environmental Protection Agency, , 2013
• Descrizione fisica: 1 sheet : color illustrations; 1 online resource (1 page) : color illustrations
• Soggetti: Air quality - Health aspects; Air - Pollution; Students - Health and hygiene; Signals and signaling
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: "March 2013."; "EPA-456/F-13-001."; Title from title screen (viewed on Sept. 12, 2013).