title: Seasonal trends in coarse and fine particle sources in Delhi by the chemical mass balance receptor model.
abstract: A study of the source contribution of atmospheric particulate matter and associated heavy metal concentrations using chemical mass balance model Version 8 (CMB8) in coarse and fine size mode has been carried out for the city of Delhi. Urban particles were collected using a five-stage impactor at six sites in three different seasons, viz. winter, summer and monsoon in the year 2001. Five samples from each site in each season were collected. The results obtained indicate the dominance of vehicular pollutants in fine size mode, whilst the contribution in coarse mode to some extent is site specific but largely due to vehicular pollution and, soil and crustal dust. Seasons also play an important role but in coarse size fraction only.
authors.affiliation: School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110 067, India. a_srivastava@mail.jnu.ac.in
authors.forename: Arun
authors.initials: A
authors.lastname: Srivastava
authors.forename: V K
authors.initials: VK
authors.lastname: Jain
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002244:Carbon; D002947:Cities; D060729:Coal Ash; D004784:Environmental Monitoring; D007194:India; D008956:Models, Chemical; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis*; D012621:Seasons; D012987:Soil; D001335:Vehicle Emissions
chemical_list: D000393:Air Pollutants; D060729:Coal Ash; D052638:Particulate Matter; D012987:Soil; D001335:Vehicle Emissions; D002244:Carbon