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List of Abstracts 16P-Sources.15 ID:4489 15:35Determination of ionic species in aerosols emitted from biomass used over delhiSaraswati Yadav 1 , Rajesh Kumar Lohchab 2 , Mohit Saxena 3 , Trilokya Saud 3 , Dhrampal Singh 4 , RanuGadi 4 , Sudhir Kumar Sharma 3 , Tuhin Kumar Mandal 31 NPL, CSIR, New Delhi, GJU S & T Hisar2 GJU S & T Hisar3 NPL, CSIR, New Delhi4 Guru Govind Singh IP University, New DelhiContact: ydv.srs@gmail.comThe study on chemical properties of aerosol emitted from biomass/bio-fuels used over Delhi has beeninitiated to estimate their concentration and role in changes of ambient air quality. In rural India the mainsource of energy for cooking and heating is the combustion of bio-fuels as major percentage of energyrequirement is met by this source. The emission concentration of ionic species from rural consumption ofbiofuels have been determined and discussed in this paper. The cow dung cake, crop residue and fuel woodsamples were collected district-wise from the rural sector of Delhi, burnt in natural condition and analyzedtheir water soluble ionic species using ion chromatography. Simultaneously the ambient air quality ofdifferent places of Delhi has been monitored to correlate/linkage of these emissions (from bio-fuels) withambient air quality of Delhi. We observed that in most of the aerosol samples the water soluble ions i.e.,NH4+, SO42-, NO3-, Na+, K+, Ca2+ and Mg2+ were present and concentration varied significantly onparent bio-fuels characteristics. In anionic species the average concentration of Cl- is highest followed byPO42->SO42->NO3->F->NO2->Br- and in cationic species the average concentration of K+ is highestfollowed by NH4+>Na+>Ca2+>Mg2+ from biofuels used over Delhi.P-Sources.16 ID:3465 15:35Characterization of Particulate Matter Emissions from a Modern Wood Burner and Determination ofWood Smoke Emission FactorsTravis Ancelet 1 , Perry Davy 2 , William Trompetter 2 , Andreas Markwitz 2 , David Weatherburn 31 Victoria University of Wellington/GNS Science2 GNS Science3 Victoria University of WellingtonContact: t.ancelet@gns.cri.nzMany urban areas in New Zealand are subject to air particulate matter pollution episodes due to particulatematter during winter. Air pollution monitoring, receptor modelling and emissions inventories all point toemissions from solid fuel fires used for domestic heating as the primary source of the particulate matterpollution. Reliable emission factors are required for emission inventories so that any air quality managementoptions and policy interventions can be assessed for effectiveness. Samples of wood combustion emissionswere collected from a wood burner typical of those that would be used for home heating in New Zealand.Particulate matter emissions associated with the combustion of three wood species commonly burned in NewZealand were measured and the concentrations of particle-phase polycyclic aromatic hydrocarbons (PAHs)and inorganic elements were determined under different operating conditions (start-up, high burn and lowburn). Samples were analysed for elemental content by Ion Beam Analysis techniques, black carbon wasdetermined by light reflectance, total carbon was determined by GC isotope ratio mass spectrometry andparticle-phase PAH concentrations were determined by thermal desorption GC/MS. Scanning ElectronMicroscopy – Energy Dispersive Spectroscopy (SEM-EDS) was used to investigate particle morphology,size distribution and individual particle elemental composition. The analysis revealed black carbon andorganic carbon comprised the majority of particulate matter mass emissions, with approximately 4 % ofiCACGP-IGAC 2010 12 July, 2010