ɪn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi nˈaɪn, lˈændsbɜːɡ wʌz ɐpˈɔɪntᵻd tə ðɪ ˈɛɹ pəlˈuːʃən kəmˈɪɾi ʌv jˈuː.ˈɛs. pɹˈɛzɪdənt hˈæɹi ˈɛs. tɹˈuːmən, wˌɛɹ hiː hˈɛlpt tə ʃˈeɪp jˈuː.ˈɛs. ˈɛɹ pəlˈuːʃən ɹˌɛɡjʊlˈeɪʃənz.
In 1949, Landsberg was appointed to the Air Pollution Committee of U.S. President Harry S. Truman, where he helped to shape U.S. air pollution regulations.