title: Quantitative estimation of dust fall and smoke particles in Quetta Valley.
abstract: Tightening of air quality standards for populated urban areas has led to increasing attention to assessment of air quality management areas, where violation of air quality standards occurs, and development of control strategies to eliminate such violation of air quality standards. The Quetta urban area is very densely built and has heavy motorized traffic. The increase of emissions mainly from traffic and industry are responsible for the increase in atmospheric pollution levels during the last years. The dust examined in the current study was collected by both deposit gauge and Petri dish methods at various sites of Quetta Valley. Smoke particles were obtained by bladder method from the exhausts of various types of motor vehicles. The concentration of lead found in the smoke ranged from 1.5x10(-6) to 4.5x10(-6).
authors.affiliation: Department of Chemistry, University of Balochistan, Quetta 87300, Pakistan. waseemq2000@yahoo.com
authors.forename: Muhammad
authors.initials: M
authors.lastname: Sami
authors.forename: Amir
authors.initials: A
authors.lastname: Waseem
authors.forename: Sher
authors.initials: S
authors.lastname: Akbar
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D002947:Cities / Q000706:statistics & numerical data*; D004391:Dust / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D010154:Pakistan; D010316:Particle Size; D012906:Smoke / Q000032:analysis*; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D004391:Dust; D012906:Smoke; D001335:Vehicle Emissions