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October 09, 2009Air pollution4 minutesPlayKeeping watch on the invisible. The Clean Air Act banished smog from our cities in the 1950s, but today there are new types of air pollution ....moreShareView all episodesBy The Open University111 ratingsOctober 09, 2009Air pollution4 minutesPlayKeeping watch on the invisible. The Clean Air Act banished smog from our cities in the 1950s, but today there are new types of air pollution ....moreMore shows like Combating air pollution - for iPod/iPhoneView allBon départ: beginners' French - Audio171 ListenersWales: Culture and identity - Audio7 ListenersCroeso: beginners' Welsh - Audio6 ListenersWriting Poetry - Audio23 ListenersReading Political Philosophy: From Machiavelli to Mill - Audio16 ListenersBeginners’ Chinese - Audio106 ListenersExploring mathematics: maths in nature and art - for iPod/iPhone10 ListenersAndante: beginners' Italian - Audio60 ListenersBon départ: beginners’ French second edition - for iPod/iPhone10 ListenersInside the International Criminal Court - for iPod/iPhone0 Listeners
Keeping watch on the invisible. The Clean Air Act banished smog from our cities in the 1950s, but today there are new types of air pollution .
October 09, 2009Air pollution4 minutesPlayKeeping watch on the invisible. The Clean Air Act banished smog from our cities in the 1950s, but today there are new types of air pollution ....more
Keeping watch on the invisible. The Clean Air Act banished smog from our cities in the 1950s, but today there are new types of air pollution .