AIRBORNE EMISSIONS FROM AGRICULTURAL BIOMASS COMBUSTION IN THE CITY OF NOVI SAD

The objective of the study was to determine airborne emissions from agricultural biomass used in residential sector and compare with those from other fuels used in the City of Novi Sad. Further objective was to compare emissions from residential sector with other relevant sectors. Three sizes of heating appliances for residential sector were distinguished: small (households), medium (agriculture) and big (district heating). Balance was performed for NOx, SOx, total suspended particles (TSP), particulate matter (PM10 and PM2.5) and black carbon (BC). Analyses were also made according to the fuel type, the source of emissions in residential sector (rural or urban zones), and type of source (residential sector, road transport and on field burning). Results showed that fossil fuels contribute to more than 75% of SOx and NOx total emissions, while PM largely originates from biomass use, whereof residential sector contributes to more than 90%. Emissions of TSP, PM10, PM2.5 and BC mostly originated from biomass, whereof 1/3 from agricultural one. NOx emissions in the highest share originated from road transport, over 78%. The highest share of SOx emissions was from coal combustion (over 74%), whereby agricultural biomass contributes to the largest share among biomasses (about 18%).