Author: Richard McClearyPublisher:
ISBN:
Category : Air quality management
Languages : en
Pages :
Book Description
Time Series Analysis of the Impact of the Vehicle Emissions Inspection Program (I/M) on Ambient Air Quality in Phoenix and Tucson
Author: Richard McClearyPublisher:
ISBN:
Category : Air quality management
Languages : en
Pages :
Book Description
A Transportation Control Strategy for the Phoenix-Tucson Air Quality Area
Author: TRW Inc. Transportation and Environmental OperationsPublisher:
ISBN:
Category : Air quality management
Languages : en
Pages : 250
Book Description
Technology and the Effectiveness of Regulatory Programs Over Time
Author: Nicholas J. SandersPublisher:
ISBN:
Category : Air
Languages : en
Pages : 49
Book Description
Personal automobile emissions are a major source of urban air pollution. Many U.S. states control emissions through mandated vehicle inspections and repairs. But there is little empirical evidence directly linking mandated inspections, maintenance, and local air pollution levels. To test for a link, we estimate the contemporaneous effect of inspections on local air quality. We use day-to-day, within-county variation in the number of vehicles repaired and recertified after failing an initial emissions inspection, with individual-level data from 1998-2012 from California’s inspection program. Additional re-inspections of pre-1985 model year vehicles reduce local carbon monoxide, nitrogen oxide, and particulate matter levels, while re-inspections of newer vehicles with more modern engine technology have no economically significant effect on air pollution. This suggests emissions inspections have become less effective at reducing local air pollution as more high-polluting vehicles from the 1970s and 1980s leave the road, and provides an example of how the social efficiency of programs can change under improving technologies. We also estimate the importance of station quality, using a metric devised for California’s new STAR certification program. We show re-inspections of older vehicles conducted by low quality inspection stations do not change air pollution, while inspections at high quality stations have a moderate effect on pollution concentrations, which suggests the potential for ineffective monitoring at low quality inspection stations. We find little effect on ambient ozone levels, regardless of station quality or vehicle age.
A Statistical Assessment of the Effect of the Car Inspection/maintenance Program on Ambient CO Air Quality in Phoenix, Arizona
Author: George C. TiaoEvaluating Vehicle Emissions Inspection and Maintenance Programs
Author: National Research CouncilPublisher: National Academies Press
ISBN: 030917077X
Category : Political Science
Languages : en
Pages : 260
Book Description
Emissions inspection and maintenance (I/M) programs subject vehicles to periodic inspections of their emission control systems. Despite widespread use of these programs in air-quality management, policy makers and the public have found a number of problems associated with them. Prominent among these issues is the perception that emissions benefits and other impacts of I/M programs have not been evaluated adequately. Evaluating Vehicle Emissions Inspection and Maintenance Programs assesses the effectiveness of these programs for reducing mobile source emissions. In this report, the committee evaluates the differences in the characteristics of motor vehicle emissions in areas with and without I/M programs, identifies criteria and methodologies for their evaluation, and recommends improvements to the programs. Most useful of all, this book will help summarize the observed benefits of these programs and how they can be redirected in the future to increase their effectiveness.
Vehicle Emissions Inspection and Maintenance Program is Behind Schedule
Author: United States. General Accounting OfficePublisher:
ISBN:
Category : Air quality
Languages : en
Pages : 72
Book Description
Air Pollution
Author: United States. General Accounting OfficePublisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 20
Book Description
The Effectiveness of Arizona's Vehicle Emissions Inspection Program
Author: Arizona. Department of Environmental QualityPublisher:
ISBN:
Category : Air quality management
Languages : en
Pages : 0
Book Description
A Report on the Status of the Vehicle Emission Test Program, January 1, 1990- December 31, 1990
Author: Illinois. Vehicle Emission Test ProgramPublisher:
ISBN:
Category : Motor vehicles
Languages : en
Pages : 28
Book Description
The Impact of Auto Emission Standards
Author: United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water PollutionPublisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 160
Book Description