Author: Thomas CuscinoPublisher:
ISBN:
Category :
Languages : en
Pages : 174
Book Description
Fugitive Dust from Vehicles Traveling on Unpaved Roads
Author: Thomas CuscinoFugitive Dust from Vehicles Using Unpaved Roads
Author: Robert Jennings HeinsohnPublisher:
ISBN:
Category : Air
Languages : en
Pages : 29
Book Description
Emissions from Vehicles, Tailpipe and Vehicle Re-entrained Road Dust
Author: Dongzi ZhuPublisher:
ISBN: 9781124020402
Category : Air
Languages : en
Pages : 166
Book Description
Emissions from transportation are some of the largest sources of urban air pollution. Transportation emissions originate from both the engine-through combustion processes and non-tailpipe re-suspended road dust emissions induced by vehicle travel on unpaved and paved roads. Gaseous and particulate emissions from transportation sources have negative impacts on human health, visibility and may influence the global radiation balance. Fugitive dust emissions originating from vehicle travel on paved and unpaved roads constitute a significant fraction of the PM10 in many areas of the western US impacting their attainment status of National Ambient Air Quality Standards. The research used three novel instrument platforms developed at the Desert Research Institute. The In-Plume Emissions Test Stand (IPETS) was designed to provide characterization of exhaust emissions from in-use individual vehicles or engines by analyzing air as close as 1 m from the exhaust port. Real-world emission factors can be quantified by in-plume measurements and provide more realistic measures for emission inventories, source modeling, and receptor modeling than certification measurements. The Testing Re-entrained Aerosol Kinetic Emissions from Roads (TRAKER) provides an effective alternate approach to the EPA AP-42 road dust emissions estimation techniques by sampling 1000s of km of roads versus isolated 3 m sections. The Portable Deposition Monitoring Platform (PDMP incorporates PM and meteorological instruments to characterize the downwind change in particle concentrations to define depositional losses in different environments. The research outcome provides important knowledge for understanding diesel engine emissions, road dust emissions and aerosol deposition process near road sources.
Fugitive Dust Control Self-inspection Handbook
Author: Effect of Vehicle Characteristics on Unpaved Road Dust Emissions
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
This paper presents PM10 fugitive dust emission factors for a range of vehicles types and examines the influence of vehicle and wake characteristics on the strength of emissions from an unpaved road. Vertical profile measurements of mass concentration of the passing plumes were carried out using a series of 3 instrumented towers. PM 10 emission fluxes at each tower were calculated from knowledge of the vertical mass concentration profile, the ambient wind speed and direction, and the time the plume took to pass the towers. The emission factors showed a strong linear dependence on speed and vehicle weight. Emission factors (EF = grams of PM10 emitted per vehicle kilometer traveled) ranged from approximately EF =48 x (kmh(exp -1)) for a light (~1200 kg) passenger car to EF = 48 (kmh(exp-1))for large military vehicles (~18 000 kg). In comparison to emission estimates derived using US EPA AP-42 methods the measured emission factors indicate larger than estimated contributions for speeds generally> 10-20kmh(exp-1) and for vehicle weights>3000 kg. The size of a wake created by a vehicle was observed to be dependent on the size of the vehicle, increasing roughly linearly with vehicle height. Injection height of the dust plume is least important to long-range transport of PM10 under unstable conditions and most important under stable atmospheric conditions.
Investigation of Fugitive Dust - Sources, Emissions, and Control
Author: PEDCo Environmental SpecialistsPublisher:
ISBN:
Category : Air
Languages : en
Pages : 170
Book Description
Fugutive Dust Control Self-inspection Handbook
Author: Mission-oriented Dust Control and Surface Improvement Processes for Unpaved Roads
Author: James Myron HooverPublisher:
ISBN:
Category : Dust control
Languages : en
Pages : 216
Book Description
Compilation of Air Pollutant Emission Factors
Author: United States. Environmental Protection Agency. Office of Air Quality Planning and StandardsPublisher:
ISBN:
Category : Air
Languages : en
Pages : 250
Book Description
Author: