RefDoc
Haut

Faire une nouvelle recherche
Make a new search
Lancer la recherche


Titre du document / Document title

Effect of vehicle characteristics on unpaved road dust emissions

Auteur(s) / Author(s)

GILLIES J. A. (1) ; ETYEMEZIAN V. (2) ; KUHNS H. (1) ; NIKOLIC D. (2) ; GILLETTE D. A. (3) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Division of Atmospheric Sciences, Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, ETATS-UNIS
(2) Division of Atmospheric Sciences, Desert Research Institute, 775 E. Flamingo Road, Las Vegas, NV 89119, ETATS-UNIS
(3) Air Resources Laboratory, Applied Modeling Research Branch, National Oceanic and Atmospheric Administration, Research Triangle Park, NC2771, ETATS-UNIS

Résumé / Abstract

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. PM10 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 = 0.8 x (km h-1) for a light (∼1200 kg) passenger car to EF = 48 x (km h-1) for large military vehicles (∼18000 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 > 10-20 km h-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.

Revue / Journal Title

Atmospheric environment    ISSN  1352-2310 

Source / Source

Congrès
International Symposium, Transport and Air Pollution No12, Avignon , FRANCE (16/06/2003)
2005, vol. 39, no 13 (175 p.)  [Document : 7 p.] (11 ref.), pp. 2341-2347 [7 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1994) (Revue)

Mots-clés anglais / English Keywords

America

;

North America

;

United States

;

Unpaved road

;

Road traffic

;

Transport process

;

Motor vehicle

;

Pollutant behavior

;

Aerosols

;

Texas

;

Vehicle type

;

Long range pollutant transport

;

Speed

;

Atmospheric condition

;

Plume

;

Atmospheric dispersion

;

Altitudinal distribution

;

Concentration distribution

;

Emission measure

;

Dust

;

Coarse particle

;

Air pollution

;

Troposphere

;

Mots-clés français / French Keywords

Amérique

;

Amérique du Nord

;

Etats Unis

;

Route non revêtue

;

Trafic routier

;

Phénomène transport

;

Véhicule à moteur

;

Devenir polluant

;

Aérosol

;

Texas

;

Type véhicule

;

Transport polluant grande distance

;

Vitesse déplacement

;

Condition météorologique

;

Panache

;

Dispersion atmosphérique

;

Répartition altitudinale

;

Distribution concentration

;

Mesure émission

;

Poussière

;

Particule grosse

;

Pollution air

;

Troposphère

;

Mots-clés espagnols / Spanish Keywords

America

;

America del norte

;

Estados Unidos

;

Tráfico carretera

;

Fenómeno transporte

;

Vehículo de motor

;

Evolución contaminante

;

Aerosol

;

Texas

;

Tipo vehículo

;

Transporte contaminante gran distancia

;

Velocidad desplazamiento

;

Condición meteorológica

;

Penacho

;

Dispersión atmosférica

;

Distribución de altitud

;

Distribución concentración

;

Medida emisión

;

Polvo

;

Partícula gruesa

;

Contaminación aire

;

Troposfera

;

Mots-clés d'auteur / Author Keywords

Fugitive dust

;

PM10

;

Unpaved road dust emissions

;

Emission factors

;

Localisation / Location

INIST-CNRS, Cote INIST : 8940 B, 35400012547981.0010

Nº notice refdoc (ud4) : 16805837



Faire une nouvelle recherche
Make a new search
Lancer la recherche
Bas