Dangos 1 - 3 canlyniadau o 3 ar gyfer chwilio 'United States. Environmental Protection Agency. Office of Air Programs', amser ymholiad: 0.19e Mireinio'r Canlyniadau
  1. 1
    Mixing heights, wind speeds, and potential for urban air pollution throughout the contiguous United States /
    Llyfr
    gan Holzworth, George C.
    Cyhoeddwyd 1972
    “...United States. Environmental Protection Agency, Office of Air Programs...”
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  2. 2
    Optical properties and visual effects of smoke-stack plumes : a cooperative study: Edison Electric Institute and U.S. Public Health Service /
    Llyfr
    gan Conner, William D.
    Cyhoeddwyd 1972
    “...United States. Environmental Protection Agency. Office of Air Programs...”
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  3. 3
    Guide to reduction of smoke and odor from diesel-powered vehicles.
    Llyfr
    Cyhoeddwyd 1971
    “...United States. Environmental Protection Agency. Office of Air Programs...”
    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
Offerynnau Chwilio: Cael Porthiant RSS – E-bostio'r Chwiliad hwn