Effects of traffic emission reduction on urban air quality episode using WRF/Chem

on the relationship between using discourse markers and the quality of expository and argumentative academic writing of iranian english majors

the aim of the present study was to investigate the frequency and the type of discourse markers used in the argumentative and expository writings of iranian efl learners and the differences between these text features in the two essay genres. the study also aimed at examining the influence of the use of discourse markers on the participants’ writing quality. to this end the discourse markers us...

Urban Air Quality Management

Study of the importance of quaternary dust sources emission on Qom air quality

1-Interoduction: Air pollution has been considered as one of the global challenges. According to world health organization (WHO), dust particles are the 5th most dangerous cause of death 4.2 million in the world. According to the world meteorological organization (WMO), when the wind speed increases more than 15 m/s and the visibility decreases because of dust particles less than 1 km, it is c...

Modeling the effects of air quality policy changes on water quality in urban areas

Steven J. Burian a, Timothy N. McPherson b, Michael J. Brown b, Gerald E. Streit b and H.J. Turin c a Assistant Professor, Department of Civil Engineering, University of Arkansas, 4190 Bell Engineering Center, Fayetteville, Arkansas, 72701, USA E-mail: [email protected] b Energy and Environmental Analysis, Group TSA-4, MS-F604, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, ...

The Influence of Urban Network Features on the Quality of Traffic Service (RESEARCH NOTE)

The work reported here presents a methodology based on a two-fluid model to assess the degree of influence of various geometric and control features of an urban network on the quality of traffic service. The two-fluid model gives a curvilinear relation between the trip time and stop time per unit distance and its parameters characterize the quality of traffic service in urban networks. Any Chan...