title: PM 2.5 and PAH concentrations in urban atmosphere of Tiruchirappalli, India.
abstract: Airborne PM 2.5 and polycyclic aromatic hydrocarbons (PAHs) bound to it were determined from March 2009 to February 2010 at different locations in Tiruchirappalli City, Southern India using fine particulate sampler and high performance liquid chromatography. Average ∑9 PAHs concentrations at four sampling stations were 333.7, 202.6, 265.9, and 232.7 ng/m(3), respectively. Highest concentration of PAHs was observed during northeast monsoon season (301.5 ng/m(3)) and lowest in southwest monsoon (216 ng/m(3)). Low and medium molecular weight PAHs such as phenanthrene, anthracene, benzo(a)anthracene and chrysene were observed in all seasons. Principal compound analysis revealed gasoline and diesel vehicular emissions as major sources for PAHs compounds.
authors.affiliation: Department of Environmental Management, Bharathidasan University, Tiruchirappalli, India. mohan.bdu@gmail.com
authors.forename: R
authors.initials: R
authors.lastname: Mohanraj
authors.forename: G
authors.initials: G
authors.lastname: Solaraj
authors.forename: S
authors.initials: S
authors.lastname: Dhanakumar
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000873:Anthracenes / Q000032:analysis; D001272:Atmosphere / Q000737:chemistry*; D001551:Benz(a)Anthracenes / Q000032:analysis; D002911:Chrysenes / Q000032:analysis; D002947:Cities; D004784:Environmental Monitoring; D007194:India; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis*; D010616:Phenanthrenes / Q000032:analysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D018570:Risk Assessment; D012621:Seasons; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D000873:Anthracenes; D001551:Benz(a)Anthracenes; D002911:Chrysenes; D052638:Particulate Matter; D010616:Phenanthrenes; D011084:Polycyclic Aromatic Hydrocarbons; D001335:Vehicle Emissions; C031180:chrysene; C031181:phenanthrene; C030935:benz(a)anthracene; C034020:anthracene