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Oregon Automobiles Motors Exhaust Gas Portland
1 Emissions reductions from inspection and maintenance: Vancouver versus Portland snapshot Michael, R. Bruce, author. [Ann Arbor, Mich.] : Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Office of Air, Noise, and Radiation, U.S. Environmental Protection Agency, August 1981. 1981- Rating: Website Copies
2 The Portland study Ashby, H. Anthony, author. [Ann Arbor, Mich.] : Test and Evaluation Branch, Emission Control Technology Division, Office of Mobile Sources, U.S. Environmental Protection Agency, 1982. 1982 Rating: Website Copies
3 Portland study : first preliminary data analysis Becker, Janet, author. [Ann Arbor, Mich.] : U.S. Environmental Protection Agency, Office of Air and Waste Management, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Characterization and Applications Branch, 1978. 1978 Rating: Website Copies
Oregon Automobiles Portland Maintenance And Repair
4 Emissions reductions from inspection and maintenance: Vancouver versus Portland snapshot Michael, R. Bruce, author. [Ann Arbor, Mich.] : Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Office of Air, Noise, and Radiation, U.S. Environmental Protection Agency, August 1981. 1981- Rating: Website Copies
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Emissions reductions from inspection and maintenance: Vancouver versus Portland snapshot